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1

ARM - Selected Science Team Proposals - FY 1995  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 5 Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Selected Science Team Proposals - FY 1995 Dr. R. Nelson Byrne, SAIC: "Evolution of a New GCM-Capable Stochastic Cloud/Radiation Parameterization Using ARM Data - Phase II" Dr. Steven J. Ghan, Pacific Northwest National Laboratory: "Parameterization of Convective Cloud Coverage in GCMs" Dr. George Golitsyn, Russian Academy of Sciences, Institute of

2

Atmospheric System Research (ASR) Program | U.S. DOE Office of Science (SC)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

» Atmospheric System Research (ASR) » Atmospheric System Research (ASR) Program Biological and Environmental Research (BER) BER Home About Research Research Abstracts Searchable Archive of BER Highlights External link Biological Systems Science Division (BSSD) Climate and Environmental Sciences Division (CESD) ARM Climate Research Facility Atmospheric System Research (ASR) Program Data Management Earth System Modeling (ESM) Program William R. Wiley Environmental Molecular Sciences Laboratory (EMSL) Integrated Assessment of Global Climate Change Regional & Global Climate Modeling (RGCM) Program Subsurface Biogeochemical Research Terrestrial Carbon Sequestration External link Terrestrial Ecosystem Science Facilities Science Highlights Benefits of BER Funding Opportunities Biological & Environmental Research Advisory Committee (BERAC)

3

ARM - Science Team Meeting Proceedings  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARM Style Guide (PDF, 448KB) Acronyms Glossary Logos Contacts RSS for Publications Science Team Meeting Proceedings Science Team Meeting Proceedings Note: For proper viewing,...

4

ARM - 1993 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Past Science Team Meetings 1993 ARM Science Team Meeting March 1 - 4 | Norman, Oklahoma | Norman, Oklahoma, is the home of the National Weather Service. Norman, Oklahoma, is...

5

FASTER: A new DOE effort to bridge ESM and ASR sciences  

SciTech Connect (OSTI)

In order to better use the long-term ARM measurements to evaluate parameterizations of fast processes used in global climate models --- mainly those related to clouds, precipitation and aerosols, the DOE Earth System Modeling (ESM) program funds a new multi-institution project led by the Brookhaven National Laboratory, FAst -physics System Testbed and Research (FASTER). This poster will present an overview of this new project and its scientific relationships to the ASR sciences and ARM measurements.

Liu, Y.

2010-03-15T23:59:59.000Z

6

ARM - CLASIC Science Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

University of Illinois Science Steering Committee Roni Avissar, Duke University Larry Berg, PNNL Tom Jackson, USDA Greg McFarquhar, University of Illinois Mark Miller, BNL Qilong...

7

ARM - 1997 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 ARM Science Team Meeting 7 ARM Science Team Meeting 1997 Meeting 1997 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1997 ARM Science Team Meeting March 3 -7 | San Antonio, Texas | St. Anthony Hotel & Municipal Auditorium The St. Anthony Hotel as well as the Municipal Auditorium and Conference Center provided rooms and meeting space. The St. Anthony Hotel as well as the Municipal Auditorium and Conference Center provided rooms and meeting space. The seventh ARM Science Team Meeting was held in San Antonio, Texas. This year the ARM Science Team Meeting and the Computer Hardware, Advanced Mathematics and Model Physics (CHAMMP) science team meetings were held jointly. The Science Team Meetings were intended to provide opportunities

8

ARM - 2000 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0 ARM Science Team Meeting 0 ARM Science Team Meeting 2000 Meeting 2000 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2000 ARM Science Team Meeting March 13 - 17 | San Antonio, Texas | St. Anthony Hotel & The Municipal Auditorium St. Anthony Hotel provided rooms along with the Municipal Auditorium for the 2000 ARM Science Team Meeting. St. Anthony Hotel provided rooms along with the Municipal Auditorium for the 2000 ARM Science Team Meeting. The tenth ARM Science Team Meeting was held in San Antonio, Texas. The Science Team Meetings were intended to provide opportunities to share scientific findings, focused technical exchanges, and collectively examine the implementation and operation of ARM.

9

Science Quest 2006 ~Team Aquanauts~  

E-Print Network [OSTI]

nutrient levels) Pond Water Motor Oil (pollution) Vinegar (acid rain) In each container two plants ­ one plant container. The motor oil solution was made by 1 part oil and 2 parts water. When addingScience Quest 2006 ~Team Aquanauts~ Activity: Plants and Water Quality OBJECTIVE: How does the type

Benitez-Nelson, Claudia

10

NASA ASRS (Pub. 35) NASA ASRS (Pub. 35)  

E-Print Network [OSTI]

NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS (Pub. 35) #12;NASA ASRS

11

NASA ASRS (Pub. 34) NASA ASRS (Pub. 34)  

E-Print Network [OSTI]

NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS (Pub. 34) #12;NASA ASRS

12

NASA ASRS (Pub. 33) NASA ASRS (Pub. 33)  

E-Print Network [OSTI]

NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS (Pub. 33) #12;NASA ASRS

13

ARM - 1996 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 ARM Science Team Meeting 6 ARM Science Team Meeting 1996 Meeting 1996 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 1996 ARM Science Team Meeting March 4 - 7 | San Antonio, Texas | Municipal Auditorium The St. Anthony Hotel, as well as the Municipal Auditorium and Conference Center, provided rooms and meeting space. The St. Anthony Hotel, as well as the Municipal Auditorium and Conference Center, provided rooms and meeting space. The fifth ARM Science Team Meeting was held in San Antonio, Texas, at the Municipal Auditorium and Conference Center. The Science Team Meetings were intended to provide opportunities to share scientific findings, focused technical exchanges, and collectively examine the implementation and

14

ARM - 2007 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Award-Winning Posters Presentations Cover Competition Winners Meeting Archives ARM Science Team Meeting...

15

ARM - 2007 Science Team Meeting Presentations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Award-Winning Posters Presentations Cover Competition Winners Meeting Archives ARM Science Team Meeting...

16

ARM - 2008 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Award-Winning Posters Presentations Cover Competition Winners Meeting Archives ARM Science Team Meeting...

17

ARM - 2009 Science Team Meeting Pictures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Award-Winning Posters Presentations Cover Competition Winners Meeting Archives ARM Science Team Meeting...

18

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A.A., and Emilenko, A.S., A.M. Obukhov Institute of Atmospheric Physics RAS, Moscow, Russia Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Regular...

19

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radiation Measurement (ARM) Science Team Meeting The Unmanned Aerospace Vehicle (UAV) Program conducted an ARM Enhanced Shortwave Experiment (ARESE) II Intensive...

20

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A High-Altitude Cloud Climatology From Satellite Data Hobbs, R. and Rusk, D.J., Aeromet, Inc. Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Tenuous,...

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meteorological Operations Rusk, D.J., Aeromet, Inc. Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It is highly desirable to use cloud radar data in...

22

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Continued Evaluation of the Microwave Radiometer Profiler Liljegren, J.C., Argonne National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Final...

23

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Analysis of Surface Heat Budget of the Arctic Ocean (SHEBA) data has identified three distinct, preferred...

24

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

International Intercomparison of 3D Radiation Codes (I3RC) Cahalan, R.F., NASAGoddard Space Flight Center Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting...

25

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

at the ARM Southern Great Plains Iziomon, M.G. and Lohmann, U., Dalhousie University, Canada Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Hansen et...

26

ARM - 2006 Science Team Meeting Pictures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Pictures Pictures 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 Science Team Meeting Pictures Photos ARM Chief Scientist Warren Wiscombe presents "The ARM Chief Scientist Report" during Tuesday morning's plenary session. The Instantaneous Radiative Flux (IRF) Working Group report is presented at Tuesday morning's plenary session. Dr. David Thomassen, Acting Associate Director of DOE's Office of Biological and Environmental Research, attended this year's ARM Science Team Meeting. Meeting attendees listen at the morning plenary session. Rick Petty engages in a discussion after the plenary session. The ARM Science Team meeting allows scientists to collaborate and share their data and research.

27

National Science Bowl Update: Middle School Teams from Maryland...  

Broader source: Energy.gov (indexed) [DOE]

Science Bowl Update: Middle School Teams from Maryland and Indiana to Compete for National Championship on Monday National Science Bowl Update: Middle School Teams from Maryland...

28

National Science Bowl Update: Teams from North Carolina and California...  

Broader source: Energy.gov (indexed) [DOE]

Science Bowl Update: Teams from North Carolina and California to Compete for High School Championship National Science Bowl Update: Teams from North Carolina and California to...

29

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 Science Team Meeting 7 Science Team Meeting 1997 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Seventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1997, March 1997 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A Comparison of Integrated Water Vapor Sensors: WVIOP-96 J.C. Liljegren, E.R. Westwater, and Y. Han A Comparison of Observed Clear-Sky Surface Irradiance with

30

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 Science Team Meeting 8 Science Team Meeting 1998 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1998, March 1998 Tucson, Arizona For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). History and Status of the ARM Program - March 1998 Session Papers A Cloud Climatology of the ARM CART Site S.M. Lazarus, S.K. Krueger, and G.G. Mace A Combination of the Separation of Variable and the T-Matrix Method for Computing Optical Properties of Spheroidal Particles*

31

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Science Team Meeting 3 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Third Atmospheric Radiation Measurement (ARM) Science Team Meeting CONF-9303112, March 1-4,1993 Norman, Oklahoma For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. History and Status of the ARM Program - March 1993 History and Status of the Atmospheric Radiation Measurement Program - March 1993 P. Lunn, T. Cress, and G. Stokes Clear Skies A Study of Longwave Radiaiton Codes for Climate Studies: Validation with Observations and Tests in General Circulation Models - an Update R.G. Ellingson and F. Baer

32

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

6 Science Team Meeting 6 Science Team Meeting 1996 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Sixth Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9603149, March 1996 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T.P. A Comparison Between Clear Sky Shortwave Flux Calculations and Observations During ARESE

33

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1 Science Team Meeting 1 Science Team Meeting 2001 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2001, March 2001 Atlanta, Georgia For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A 3-Year Climatology of Cloud and Radiative Properties Derived from GOES-8 Data Over the Southern Great Plains M.M. Khaiyer, A.D. Rapp, D.R. Doelling, M.L. Nordeen, W.L. Smith, Jr., and P. Minnis A 4-Year Study of the RASS Temperature Bias

34

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Science Team Meeting 2 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Second Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9110336, October 26-30, 1992 Denver, Colorado For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T. An Integrated Cloud Observation and Modeling Investigation in Support of the Atmospheric Radiation Measurement Program Tropical Western Pacific Project: Status Albrecht, B.

35

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

7 Science Team Meeting 7 Science Team Meeting 1997 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Seventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1997, March 1997 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Acharya, P. Spectral Resolution Effects on Solar Irradiance Calculations Ackerman, S.A.

36

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 Science Team Meeting 3 Science Team Meeting 2003 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2003, April 2003 Broomsfield, Colorado For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A 20-year Data Set of Downwelling Longwave Flux at the Arctic Surface from TOVS Satellite Data Francis, J.A., Schweiger, A., and Key, J. A Comparison of Aerosol Scattering Parameters Obtained by Ground-Based Remote Sensing and In-situ Profile Flights*

37

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

4 Science Team Meeting 4 Science Team Meeting 1994 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Fourth Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-940277, March 1994 Charleston, South Carolina For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abreu, L.W. MODTRAN3: Suitability as a Flux-Divergence Code Acharya, P. MODTRAN3: Suitability as a Flux-Divergence Code Ackerman, S.A. Atmospheric Emitted Radiance Interferometer Data Analysis Methods

38

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2 Science Team Meeting 2 Science Team Meeting 1992 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Second Atmospheric Radiation Measurement (ARM) Science Team Meeting DOE CONF-9110336, October 26-30, 1992 Denver, Colorado For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. Technical Sessions A Field Evaluation of NOAA Remote Sensor Measurements of Wind, Temperature, and Moisture B.E. Martner A Stochastic Formulation of Radiant Transfer in Clouds and Radiative Properties of Non-Uniform Clouds G.L. Stephens and P.D. Gabriel A Study of Longwave Radiation Codes for Climate Studies: Validation

39

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

5 Science Team Meeting 5 Science Team Meeting 1995 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Proceedings of the Fifth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1995, March 1995 San Diego, California For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, T.P. A Boundary-Layer Cloud Study Using Southern Great Plains Cloud and Radiation Testbed (CART) Data A Comparison of Radiometric Fluxes Influenced by Parameterized Cirrus Clouds with Observed Fluxes at the Southern Great Plains (SGP) Cloud

40

ARM - 2006 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting Meeting 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 ARM Science Team Meeting March 27-18 | Albuquerque, New Mexico | Hyatt Regency Albuquerque The Hyatt Regency - Albequerque The Hyatt Regency - Albequerque Meeting Highlights Just over 300 ARM scientists and ACRF infrastructure staff took part in the 16th ARM Science Team meeting held in Albuquerque, New Mexico, on March 27-31, 2006. After an initial day of focused meetings among the ARM Working Groups, Dr. David Thomassen, Acting Associate Director of DOE's Office of Biological and Environmental Research (BER), opened the meeting's plenary session with remarks about the role of ARM within the DOE, and its

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

0 Science Team Meeting 0 Science Team Meeting 2000 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Tenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2000, March 2000 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). Poster abstracts are not available online for this year. However, if you would like to request a copy of a specific poster abstract, please contact the Web Administrator. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abshire, J.B.

42

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Satellite Data Link on the ARM-UAV Payload McCoy, R.F, Tooman, T.T., and Bolton, W.B., Sandia National Laboratories Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

43

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Instrumentation for the AMR-UAV Payload McCoy, R.F., Tooman, T.T., and Bolton, W.B., Sandia National Laboratories Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

44

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Dataset of the Evaluation of Large-Scale Models Using ARM Data at Manus and Nauru Jakob, C. and May, P.T., BMRC Thirteenth Atmospheric Radiation Measurement (ARM) Science Team...

45

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of MODIS Cloud Mask Products (MOD35) with MMCR Data Zhang, Q. and Mace, G.G., University of Utah Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting...

46

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radiation Measurement (ARM) Science Team Meeting Data collected during the SHEBA (Surface Heat Budget of the Arctic Ocean) field experiment and at the Barrow ARM site are used to...

47

ARM - 2006 Science Team Meeting Presentations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Presentations Presentations 2006 Meeting 2006 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2006 Science Team Meeting Presentations Monday, March 27, 2006 ARM Orientation for New and Current PIs: Overview and History Warren Wiscombe (PDF, 6 MB) ARM Orientation for New and Current PIs: Infrastructure Overview 2006 Jimmy Voyles (PDF, 4MB) ARM Orientation for New and Current PIs: An Incomplete Introduction to ACRF Instrumentation Jim Liljegren (PDF, 4MB) ARM Orientation for New and Current PIs: ARM Data Quality Office - Real-Time Assessment of ARM Data Randy Peppler (PDF, 12MB) ARM Orientation for New and Current PIs: Getting Data from the ARM Archive

48

ARM - 2009 Science Team Meeting Presentations  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Presentations Presentations 2009 Meeting 2009 Meeting Home Proceedings Sorted by Author Proceedings Sorted by Title Pictures Posters Presentations Meeting Archives ARM Science Team Meeting Proceedings Past Science Team Meetings 2009 Science Team Meeting Presentations Monday, March 30, 2009 ARM Orientation for New and Current PIs Chief Scientist's Perspective (PDF, 3,362K) Warren Wiscombe ARM Instruments (PDF, 1,828K) Jimmy Voyles Infrastructure (PDF, 607K) Jim Mather How to Get Data (PDF, 9,307) Raymond McCord Working Group Sessions Radiative Properties Working Group 2009 Breakout Session Agenda (PDF, 36K) Dave Turner Radiative Constraints in Tropical Upper Troposphere and Lower Stratosphere (PDF, 281K) Qiang Fu Ground-Based Microwave Cloud Tomography Experiment (PDF, 597K) Dong Huang

49

Carter's science team: Yesterday's men  

Science Journals Connector (OSTI)

... many of its top jobs - posts which remain vacant include the directorship of the Office of ... of Science and Technology Policy (OSTP), the chairmanship of the Nuclear Regulatory Commission, and the ...

David Dickson

1981-05-07T23:59:59.000Z

50

Registration Now Open for 2013 Science Bowl Teams | Department...  

Office of Environmental Management (EM)

Registration Now Open for 2013 Science Bowl Teams Registration Now Open for 2013 Science Bowl Teams October 2, 2012 - 10:00am Addthis NEWS MEDIA CONTACT (202) 586-4940 Washington -...

51

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting Meeting 2002 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2002, April 2002 St. Petersburg, Florida For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Ackerman, S.A. Cloud Phase Determination in the Arctic Using AERI Data ERBE OLR and Cloud Type by Split Window* Ackerman, T.P. A Climatology of Shortwave Cloud Radiative Forcing Using Ground-Based Broadband Radiometric Time-Series*

52

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting Meeting 2003 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2003, April 2003 Broomsfield, Colorado For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abdou, W.A. Intercomparison of MISR Aerosol Retrievals with Sunphotometer and MODIS Results* Ackerman, T.P. Comparison of Observed and Modelled Liquid Water Path for Stratus and Stratocumulus Clouds at the SGP*

53

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting Meeting 1999 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-1999, March 1999 San Antonio, Texas For proper viewing, many of these proceedings should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. View session papers by Author or Title. * Poster abstract only; an extended abstract was not provided by the author(s). A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abshire, J.B. Development of a Compact Lidar to Profile Water Vapor in the Lower Troposphere Ackerman, T.P. A 25-Month Database of Stratus Cloud Properties Generated from Ground-Based Measurements at the ARM SGP Site

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ARM - Publications: Science Team Meeting Documents  

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Availability and Status of MISR Geophysical Data Products Availability and Status of MISR Geophysical Data Products Diner, D.J. and the MISR Science Team, Jet Propulsion Laboratory, California Institute of Technology Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Multi-angle Imaging SpectroRadiometer (MISR) instrument aboard the Terra spacecraft has been collecting Earth imagery since February 2000. MISR contains nine cameras pointed at fixed along-track directions, and acquires images with view angles at the Earth’s surface ranging from 70.5º forward of nadir to 70.5º aftward, in four spectral bands. The MISR experiment routinely generates geophysical data products using new algorithms developed specifically to capitalize on MISR's observational strategy. Included among these products are aerosol optical depths and

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ARM - Publications: Science Team Meeting Documents  

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ARM In The Classroom: Developing an Operational Forecasting Site for the ARM In The Classroom: Developing an Operational Forecasting Site for the NSA Harrington, J. Y.(a) and Olsson, P. Q.(b), The Pennsylvania State University (a), The University of Alaska Anchorage (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting During the fall 2002 semester, the Department of Meteorology's Computer Applications in Meteorology course took on the project of developing an operational forecasting site for the ARM North Slope of Alaska and the Alaska Region. The course was designed around team-driven forecast products similar to what the students will find in the job environment. During the fall semester, the students were provided with a data feed from Alaska consisting of various forecast fields for the ETA model Alaska grid. The

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ARM - Publications: Science Team Meeting Documents  

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A Partially Prognostic Third-Order Closure Model for Modeling the Boundary A Partially Prognostic Third-Order Closure Model for Modeling the Boundary Layer Cheng, A.C.(a) and Xu, K.-M.(b), Center for Atmospheric Sciences, Hampton University (a), Atmospheric Sciences, NASA Langley Research Center (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new partially prognostic third-order closure (TOC) model is developed to model boundary-layer clouds in this study. The model assumes joint double Gaussian distributions of vertical velocity, temperature and moisture. The first and second moments of all variables as well as the third moments of vertical velocity, liquid-water potential temperature and total water mixing ratio are predicted to determine a proper probability density function (PDF). Once the PDF is known, the rest of the third moments and

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ARM - Publications: Science Team Meeting Documents  

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On Problems in Simulating Boundary-layer Cumulus Clouds with Third-Order On Problems in Simulating Boundary-layer Cumulus Clouds with Third-Order Turbulence Closure Models Cheng, A.(a) and Xu, K.-M.(b), Atmospheric Sciences, NASA Langley Research Center (a), Center for Atmospheric Sciences, Hampton University (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A hierarchy of third-order turbulence closure models are used to simulate boundary-layer cumulus clouds from the Atmospheric Radiation Measurement in this study. A moist spurious oscillation is found in the Level-3 model, which predicts all third moments. The period of the oscillation is about 1000 s, which is resulted from the interaction of the mean liquid water gradient and the liquid water buoyancy terms in the third-moment equations. A reasonably large diffusion coefficient and a large dissipation at its

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ARM - Publications: Science Team Meeting Documents  

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Infrared Interferometric Measurements of the Air-Sea Temperature Difference Infrared Interferometric Measurements of the Air-Sea Temperature Difference Minnett, P.J., Rosenstiel School of Marine and Atmospheric Science, University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Marine Atmosphere Emitted Radiance Interferometers (M-AERI) have been mounted on several research ships on cruises in the world?s oceans, several in the areas of the ARM TWP and NSA-AAO sites. Accurate measurements of the skin sea-surface temperature and near-surface air temperatures are derived from the infrared spectral measurements, which, unlike conventional measurements of air-sea temperature difference, have a common calibration. This removes the largest source of uncertainty in the measurement of air-sea temperature differences, and thereby a major uncertainty in

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ARM - Publications: Science Team Meeting Documents  

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The Solar Spectrum 360 to 1050 nm from Rotating Shadowband The Solar Spectrum 360 to 1050 nm from Rotating Shadowband Spectroradiometer (RSS) Measurements at the Southern Great Plains Site Harrison, L.C., Berndt, J.L., Kiedron, P.W., Michalsky, J.J., Min, Q., and Schlemmer, J., Atmospheric Sciences Research Center, State University of New York, Albany Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Two years of Langley extrapolations made from the Southern Great Plains (SGP) site of the Atmospheric Radiation Measurement (ARM) Program using two very different RSS instruments and a NIST-derived irradiance scale show larger extraterrrestrial solar irradiances in the 400 to 600 nm domain by as much as 4.5% compared to the Labs and Neckels [1968] data. Our results are more congruent with Thuiller et al. [1998] in this domain, but do not

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An Anthology of Tropical Convection: Dynamical and Thermodynamical An Anthology of Tropical Convection: Dynamical and Thermodynamical Interactions and the Organization of Large-Scale Tropical Convection Webster, P.J., Program in Atmospheric and Oceanic Sciences, University of Colorado Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting There appears to be no universal relationship between large-scale organized convection and the magnitude of sea surface temperature (SST). Convection and mean precipitation maxima are often found on the equatorward side of maximum SST or even in the winter hemisphere of the tropics. Thus, there must exist other rules besides thermodynamical forcing that provide necessary conditions for convection. A survey of large-scale organized convection has been conducted in order to find necessary conditions for the

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61

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Variations in the Ratio of IR Window Radiance to Microwave Water Path Variations in the Ratio of IR Window Radiance to Microwave Water Path Observed Under Cloudless Convection Platt, C.M.(a) and Austin, R.T.(b), Department of Atmospheric Science, Colorado State University, Fort Collins, Colorado Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The measurement of the radiance of cirrus (and other) clouds at atmospheric window 8-13 micron wavelengths requires a correction for the water vapor radiance and transmittance below the clouds. Calculating radiances at the times of routine radiosonde ascents and interpolating the radiance/water path ratio between ascents can achieve this. However it has been observed experimentally that IR radiance/water path ratios appear to vary between radiosonde ascents away from the interpolated values. This occurs

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Sun Photometer Laser and Lamp Based Radiometric Calibrations Sun Photometer Laser and Lamp Based Radiometric Calibrations Allen, D.W.(a), Souaidia, N.(a), Pietras, C.(b), Brown, S.(a), Lykke, R.(a), Frouin, R.(c), Deschamps, P.Y.(d), Fargion, G.(b), and Johnson, B.C.(a), National Institute of Standards and Technology (a), National Aeronautics and Space Administration, SAIC (b), Scripps Institution of Oceanography (c), Laboratoire d'Optique Atmospherique, France (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The goals of this study were to calibrate the radiometers using independent methods, evaluate the uncertainties for each method, and assess the influence of the results in terms of the science requirements. The radiometers were calibrated in irradiance and radiance mode using a monochromatic, laser-illuminated integrating sphere, in radiance mode using

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ARM - Publications: Science Team Meeting Documents  

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Infrared Cloud Imager (ICI) Measurements of Cloud Statistics During the Infrared Cloud Imager (ICI) Measurements of Cloud Statistics During the 2003 Cloudiness Intercomparison Campaign Gregory, L., Wagener, R., Ma, L.L., and Cialella, A., Brookhaven National Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The process of creating ARM data-streams from external data sources is described from identification of scientific need as determined by the science working groups to implementation and documentation, which involves ARM's task management tools: Engineering Change Request/Order, Baseline Change Request, Data Object Design/Birth of a Data Stream, eXternal Data Stream documentation. Pitfalls and typical delays are illustrated with recently completed data-stream ingests. Some procedural changes are

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Comparison of Measurements of Liquid Water Path Comparison of Measurements of Liquid Water Path Lane, D.E. (a), Fairall, C.W. (b), Hazen, D. (b), and Orr, B. (b), Cooperative Institute for Research in Environmental Science, University of Colorado, Boulder (a), Environmental Technology Laboratory, National Oceanic and Atmospheric Administration, Boulder (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Investigation of ship-based microwave radiometer observations from the equatorial Pacific during EPIC 99 indicated anomalously high values of liquid water content during clear sky conditions. Several possible sources of error were examined including the radiative transfer model employed to the original sondings, and application of the TIP calibrations. Further research has suggested that incorrect brightness temperatures were observed

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Introducing WEB_MADS Introducing WEB_MADS Dedecker, R.G., Quinn, G.M., Garcia, R.K., and Revercomb, H.E., University of Wisconsin-Madison Space Science and Engineering Center Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Multiple AERI Display System (MADS) is a software package developed to allow remote access to and viewing of the operational AERI data streams produced by remotely operated AERI instruments. The MADS system was developed some years ago and operates on stand alone Personal Computers that run the OS/2 operating system and that acquire remote AERI data via the Internet. WEB-MADS is a Web based prototype version of MADS that allows remote access to the same AERI data and information using any standard Web Browser. As was the case with the original MADS, WEB-MADS provides a means for real

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Initial Measurements from the Compact Millimeter-Wave Radar Initial Measurements from the Compact Millimeter-Wave Radar Roman-Nieves, J.(a), Sekelsky, S.M.(a), Tooman, T.T.(b), and Bolton, W.B.(b), University of Massachusetts at Amherst (a), Sandia National Laboratories (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The University of Massachusetts at Amherst has developed a solid state compact 95 GHz millimeter-wave radar (CMR) for the ARM Unmanned Aerospace Vehicle (UAV) program. CMR has recently flown in ARM-UAV sponsored engineering flights and a cirrus science mission flying aboard the NASA Proteus aircraft. This poster presents the final CMR hardware configuration and results from ground-based and airborne engineering measurements. In addition we show airborne measurements form from the ARM-UAV 2002 Cirrus

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Detection of Thin Cirrus using a Combinaton of 1.38-um Reflectance and Detection of Thin Cirrus using a Combinaton of 1.38-um Reflectance and Window Brightness Temperature Difference Roskovensky, J.K. and Liou, K.N., Department of Atmospheric Sciences University of California, Los Angeles Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new cloud detection scheme has been developed that utilizes 1.38-um reflectance in combination with 8.6-11 um brightness temperature difference to detect cirrus clouds. The 1.38-um channel on board MODIS is useful in detecting thin cirrus due to its high sensitivity to upper tropospheric clouds and a nearly negligible sensitivity to low-level reflectance. Dependent upon neighboring cloud type, water vapor concentration, and the viewing geometry, specific 1.38-um reflectance threshold levels can be

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Lidar Remote Sensing of Cirrus Clouds at the Southern Great Plains Site: Lidar Remote Sensing of Cirrus Clouds at the Southern Great Plains Site: Comparisons of Extinction and Backscatter Coefficients Derived Using Raman and Backscatter Lidar Technique Comstock, J.M.(a), Fu, Q.(b), Turner, D.D.(c), and Ackerman, T.P.(a), Pacific Northwest National Laboratory (a), Department of Atmospheric Sciences, University of Washington (b), University of Wisconsin/Pacific Northwest National Laboratory(c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Horizontal and vertical inhomogeneity of cirrus clouds is an important issue in radiation modeling and the representation of cirrus clouds in general circulation models (GCMs). Lidar remote sensing is a useful tool for determining the vertical structure of cirrus clouds. Backscatter

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The Topography of Cloud Tops The Topography of Cloud Tops Pincus, R., Gunshor, M., Space Science and Engineering Center, University of Wisconsin-Madison; Marshak, A., and Wiscombe, W., National Aeronautics and Space Administration-Goddard Space Flight Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The geometric shape of cloud top affects the amount and distribution of radiation reflected by the cloud. The angular redistribution is more relevant to remote sensing applications, while changes in the total amount of energy reflected affect cloud albedo. The difference between reflection by "bumpy" and plane-parallel clouds is greatest when both clouds and bumps are optically thick and solar zenith angle low. Quantitative assessment of these effects requires a description of topography of a cloud top. We

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Evaluation of Terra MODIS Aerosol and Water Vapor Measurements Using ARM Evaluation of Terra MODIS Aerosol and Water Vapor Measurements Using ARM SGP Data Ferrare, R.A. (a), Brasseur, L.H. (b), Turner, D.D. (c,d), Tooman, T.P. (e), Remer, L. (f), and Gao, B-C. (g), NASA Langley Research Center (a), Science Applications International Corporation/NASA/LaRC (b), Pacific Northwest National Laboratory (c), University of Wisconsin-Madison (d), Sandia National Laboratories (e), NASA Goddard Space Flight Center (f), Naval Research Laboratory (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Moderate-Resolution Imaging Spectroradiometer (MODIS) sensor on the Earth Observing System (EOS) Terra satellite platform has been measuring aerosol and water vapor parameters since February 2000. The MODIS aerosol

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ARM - Publications: Science Team Meeting Documents  

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ARM External Data: Recent Developments and Future Plans ARM External Data: Recent Developments and Future Plans Wagener, R., Gregory, L., Ma, L.L., and Cialella, A., Brookhaven National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting This poster lists new datastreams collected and processed by the ARM External Data Center since the last update in 1999 (MOLTS, TOMS, 30 min OK Mesonet, CSPHOT, TWP AVHRR, ECMWF, RUC, TAO Buoy, IAP). We describe briefly the software tools employed in converting these data to netCDF files, because data-users might find them helpful in dealing with the raw files themselves (GrADS, IDL, Perl). The priorities for future data acquisitions and ingests are set by consensus of the Science Working Groups. The current high priority new collections include: Suominet GPS data, Darwin Radar and

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A Semianalytic Technique to Speed Up Successive Order of Scattering Model A Semianalytic Technique to Speed Up Successive Order of Scattering Model for Optically Thick Media Duan, M. and Min, Q., Atmospheric Sciences Research Center, State University of New York Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A semianalytic technique has been developed to speed up integration of radiative transfer over optically thick media for the successive order of scattering method. Based on characteristics of internal distribution of scattering intensity, this technique uses piece-wise analytic eigenfunctions to fit internal scattering intensities and integrates them analytically over optical depth. This semianalytic approach greatly reduces the number of sub-grids for accurately solving radiative transfer based on

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Cloud-Radiation-Aerosol Experiment (1996) at IAPh, Russia Cloud-Radiation-Aerosol Experiment (1996) at IAPh, Russia Golitsyn, G.S., Anikine, P.P., and Sviridenkov, M.A., Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting In 1996, local measurements of the optical properties of the near-surface aerosol were carried out parallel with aureole measurements of the aerosol in the atmospheric column. The spectral radiation was measured by a complex of spectrometers. Global radiation was controlled by standard equipment (pyrheliometer, pyranometer, pyrgeometer). A microwave sounder was used to determine the liquid water path of clouds and water vapor content. Advanced Very High Resolution Radiometer (AVHRR) data from the National Oceanic and

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Raman Lidar Characterization of the Vertical Variability of Aerosols and Raman Lidar Characterization of the Vertical Variability of Aerosols and Water Vapor Over the SGP Ferrare, R.A. (a), Turner, D.D. (b,g), Brasseur, L.H. (c), Tooman, T.P. (d), Dubovik, O. (e), Goldsmith, J.E.M. (d), Ogren, J.A. (f), and Feltz, W. (g), NASA Langley Research Center (a), Pacific Northwest National Laboratory (b), Science Applications International Corporation/NASA/LaRC (c), Sandia National Laboratories (d), SSAI/NASA Goddard Space Flight Center (e), NOAA Climate Monitoring and Diagnostics Laboratory (f), University of Wisconsin-Madison (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The automated Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Raman Lidar routinely measures profiles of water vapor mixing ratio,

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Long-Period Variations of UV-B Radiation From Results of Ozone Long-Period Variations of UV-B Radiation From Results of Ozone Reconstruction from Dendrochronologic Data Zuev, V.V. and Bondarenko, S.L., Institute of Atmospheric Optics Russian Academy of Sciences Tomsk, Russia Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The thickness of stratospheric ozone layer modulates the level of UV-B radiation reaching the surface without cloudiness. The high level of UV-B radiation causes a stress of vegetation including trees. The stress-induced changes in physiologic processes are reflected in tree ring characteristics. The multi-centennial history of ozonosphere behavior is contained in annual tree rings on the basis of response to UV-B radiation effect. The dendrochronologic time series are statistically representative,

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Change of Atmospheric Boundary Layer Thermal Regime Induced by Aerosol as Change of Atmospheric Boundary Layer Thermal Regime Induced by Aerosol as Measured by MTP-5 Koldaev, A.V.(a), Kadygrov, E.N.(a), Khaikine, M.N.(a), Kuznetsova, I.N.(b), and Golitsyn, G.S.(c), Central Aerological Observatory (a), Hydrometeorological Center (b), A.M.Obukhov Institute of Atmospheric Physics Russian Academy of Science (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Change in atmospheric boundary layer (ABL) radiation balance as caused by natural and anthropogenic reasons is an important topic of ARM Project. The influence of aerosol while its concentration was extremely high within a long period of time was studied experimentally. The case was observed in Moscow region with the transport of combustion products from peat and

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Characterization and Calibration of the Commercial RSS Slated for Permanent Characterization and Calibration of the Commercial RSS Slated for Permanent Deployment at SGP Kiedron, P., Berndt, J., Yager, E., Harrison, L., and Michalsky, J., Atmospheric Sciences Research Center, SUNY at Albany, New York Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM program purchased a rotating shadowband spectroradiometer (RSS) that was manufactured by Yankee Environmental Systems, Inc. At ASRC the instrument went through initial acceptance tests and after corrections and modifications made by the manufacturer the instrument was characterized. The angular response, linearity, wavelength registration, out-of-band rejection, slit function, absolute spectral response and noise were measured. The purpose of instrument characterization is to provide the

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3-D Reconstruction of a Regional-Scale Cloud Field from Satellite Data 3-D Reconstruction of a Regional-Scale Cloud Field from Satellite Data for Use in a Broadband Monte Carlo Radiative Transfer Model Galinsky, V., Ramanathan, V., Boer, E., Podgorny, I., and Vogelmann, A. M., Center for Atmospheric Sciences-Scripps Institution of Oceanography Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The absence of realistic 3-D cloud fields and their associated radiative transfer in current general circulation models (GCM) or radiative transfer models may result in large inconsistencies in the Earth's energy budget calculations. We investigate these effects by reconstructing the regional-scale, 3-D cloud field structure from multi-spectral satellite imagery. From this reconstruction, we compute the radiative fluxes using a

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Using a MFRSR to Calculate Direct and Diffuse Broadband Measurements from Using a MFRSR to Calculate Direct and Diffuse Broadband Measurements from Global Broadband Measurements Cornwall, C.R. (a,b), Hodges, G.B. (a,b), and DeLuisi, J.D. (b), University of Colorado Cooperative Institute for Research in Environmental Sciences (a), NOAA Air Resources Lab (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Research Objective: To infer values of direct solar irradiance using data from a Multi-Filter Rotating Shadowband Radiometer (MFRSR) and a broadband pyranometer measuring global horizontal irradiance. Methodology: The MFRSR measures global and diffuse radiation over six narrow spectral bands as well as one broadband (silicon pyranometer). Values for corresponding direct normal irradiances are automatically calculated as part of the MFRSR

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Cloud-Resolving Simulations of Boundary-Layer Cloud Regimes with a Cloud-Resolving Simulations of Boundary-Layer Cloud Regimes with a Third-Order Turbulence Cheng, A.(a,b) and Xu, K.-M.(a), Atmospheric Sciences, NASA Langley Research Center (a), Hampton University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting LES (large eddy simulation) models can explicitly resolve large turbulent eddies, which contain m ost of the turbulent kinetic energy and do most of the transport in the boundary layer. These edd ies have to be parameterized in cloud-resolving models (CRMs), which have much coarser resolution . A sophisticated turbulent parameterization is needed in order to produce adequate simulations o f cloud processes in CRMs. Most CRMs use a one- and a half-order prognostic turbulent kinetic ene rgy closure. Third-order

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


81

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Spectral Diffuse Irradiance in UV, VIS, and NIR During the 2001 Diffuse IOP Spectral Diffuse Irradiance in UV, VIS, and NIR During the 2001 Diffuse IOP Kiedron, P., Michalsky, J., Berndt, J., Min, Q., and Harrison, L., Atmospheric Sciences Research Center, SUNY Albany, New York Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Two rotating shadowband spectroradiometers (RSS) participated in the 2001 Diffuse IOP. The UV-RSS covered the 300-360 nm range and the VIS-NIR RSS covered 360-1050 nm. Both instruments were calibrated with NIST traceable spectral irradiance. The two instruments were able to measure approximately 95% of total diffuse radiation for clear-sky conditions. The missing shortwave infrared beyond 1050 nm is estimated with a model in order to calculate a total shortwave irradiance. The results are compared with

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The ARM Blue/Green Period: 3-Channel Color Composites of GOES-8 Data The ARM Blue/Green Period: 3-Channel Color Composites of GOES-8 Data Wagener, R., and Gregory, L., Brookhaven National Laboratory, ARM External Data Center Konidaris, N., Carnegie Mellon University; Minnett, P.J., University of Miami, Rosenstiel School of Marine and Atmospheric Sciences Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Despite the title and the general appearance of the resulting images, this is not an attempt to emulate art nor an expression of anybody's mood. It is simply an attempt to condense as much information as possible about a day's worth of Geostationary Operational Environmental Satellite (GOES) data onto a single web page. A 24-bit red, green, blue (RGB) color composite is derived by assigning the reflectivity in the GOES-8 visible channel to red,

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Analysis of Humidity Halos Around Trade Wind Cumulus Clouds Analysis of Humidity Halos Around Trade Wind Cumulus Clouds Lu, M.-L.(a), Wang, J.(b), Freedman, A.(c), Jonsson, H.H.(d), Flagan, R.C.(a), McClatchey, R.A.(c), and Seinfeld, J.H.(a), California Institute of Technology (a), Brookhaven National Laboratory (b), Aerodyne Research, Inc. (c), Naval Postgraduate School (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Regions of enhanced humidity in the vicinity of cumulus clouds, so-called cloud halos, reflect features of cloud evolution, exert radiative effects and may serve as a locus for new particle formation. We describe here the results of an aircraft sampling campaign carried out near Oahu, Hawaii from July 31- Aug. 10, 2001, aimed at characterizing the properties of trade wind cumulus cloud halos. An Aerodyne Research Inc. fast spectroscopic

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Water Vapor Intensive Operating Periods: General Results, Status and Plans Water Vapor Intensive Operating Periods: General Results, Status and Plans Revercomb, H.E., Tobin, D.C., Knuteson, R.O., and Feltz, W.F., University of Wisconsin-Madison; Turner, D.D., Pacific Northwest National Laboratory Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate measurements of atmospheric water vapor are very important for climate research and monitoring. Unexpectedly large uncertainties of sonde water vapor observations implied by Atmospheric Radiation Measurement (ARM) Program's radiation measurements led to special Water Vapor Intensive Observation Periods (IOPs) conducted in 1996 and 1997 at the Southern Great Plains (SGP) central facility. The goal was to use the complement of ARM advanced instrumentation to better quantify the problem and to find ways of

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Radar Observations of Large-Eddy Circulations and Turbulence in Boundary Radar Observations of Large-Eddy Circulations and Turbulence in Boundary Layer Clouds Albrecht, B.A. and Kollias, P., Umiversity of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting With the development and application of Doppler short wavelength radars, there has been an increased capability for explicitly resolving the vertical structure of boundary layer cloud circulations. Further, Doppler mm-wavelength radars used in a vertically pointing mode can provide information on the turbulence structure within the cloud volume sampled by the radar. Since these radar large eddy observations (LEO) are of the same resolution as that of Large Eddy Simulation models, they provide a means for explicitly evaluating LES (LEO for LES). Further the radar observations

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Interactions of Cumulus Convection and the Boundary Layer Over the Southern Interactions of Cumulus Convection and the Boundary Layer Over the Southern Great Plains Krueger, S.K. (a), Luo, Y. (a), Lazarus, S.M. (a), and Xu, K.-M. (b), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting We are using observations and cloud-resolving model (CRM) simulations to better understand the interaction between deep cumulus convection and the boundary layer over the southern Great Plains of the United States. The observations are from a 29-day ARM SCM IOP that took place at the ARM SGP site during June and July 1997. The cumulus effects in the boundary layer are due to rain evaporation and fluxes due to cumulus updrafts and downdrafts. These effects can substantially modify the boundary layer in

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Full Spectrum Correlated-k for Shortwave Atmospheric Radiative Transfer Full Spectrum Correlated-k for Shortwave Atmospheric Radiative Transfer Pawlak, D.T.(a,b), Clothiaux, E.E.(a), Modest, M.M.(c), and Cole, J.N.S.(a), Department of Meteorology, The Pennsylvania State University (a), Air Force Institute of Technology, Civilian Institutions Graduate Programs Division (b), Department of Mechanical Engineering, The Pennsylvania State University (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fast and accurate atmospheric radiation heating and cooling rate calculations are important for improving global climate and numerical weather prediction model performance. The radiative transfer calculations in atmospheric models must be fast so that the underlying methods can actually be implemented in the models and the calculations must be accurate

88

ARM - Publications: Science Team Meeting Documents  

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The Second ARM Diffuse Horizontal Irradiance Comparison Fall 2003 The Second ARM Diffuse Horizontal Irradiance Comparison Fall 2003 Michalsky, J.J.(a), Dolce, R.(b), Dutton, E.G.(c), Long, C.N.(d), Jeffries, W.Q.(e), McArthur, L.J.B.(f), Philipona, R.(g), Reda, I.(h), and Stoffel, T.L.(h), State University of New York at Albany (a), Kipp & Zonen, Inc. (b), Climate Monitoring and Diagnostics Laboratory, NOAA (c), Pacific Northwest National Laboratory (d), Yankee Environmental Systems, Inc. (e), Meteorological Service of Canada (f), World Radiation Center (g), National Renewable Energy Laboratory (h) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The first diffuse horizontal irradiance comparison in the Fall 2001 revealed a consistency near the 2 W/m2 level among more than half of the pyranometers that participated. In planning for this second comparison the

89

ARM - Publications: Science Team Meeting Documents  

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The Absorption of NIR Solar Radiation by Precipitation The Absorption of NIR Solar Radiation by Precipitation Evans, W.F.J.(a) and Puckrin, E.(b), Physics Department, Trent University (a), DRDC,Canada (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It has recently been shown by Ackerman (Physics Today; 2003) that good radiation codes can model the absorption of up to 100 W/m2 of short wave by clouds. However, spectral measurements of the transmission of solar infrared radiation through clear and cloudy skies with FTIR spectroscopy have indicated that still are certain clouds which absorb unexpectedly large amounts of near-infrared (NIR) radiation. The amounts are unexpected in the sense that radiation codes, including sophisticated algorithms such as MODTRAN4, do not model this strong NIR absorption effect. The absorption

90

ARM - Publications: Science Team Meeting Documents  

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Aerosol Enhancement of Cloud Albedo Shown by Satellite Measurements and Aerosol Enhancement of Cloud Albedo Shown by Satellite Measurements and Chemical Transport Modeling Schwartz, S.E. (a), Harshvardhan (b), and Benkovitz C.M.(a), Brookhaven National Laboratory (a), Purdue University (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Twomey effect of enhanced cloud droplet concentration, optical depth, and albedo due to anthropogenic aerosols is thought to contribute substantially to radiative forcing of climate change over the industrial period. Present model-based estimates of this indirect forcing are highly uncertain. Increased cloud drop concentration and decreased effective radius indicative of the indirect effect have previously been shown in interhemispheric comparisons of satellite remote sensing data, but efforts

91

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The Darwin 2005 IOP The Darwin 2005 IOP May, P.T.(a), Jakob,C.(a), Long, C.N.(b), and Keenan, T.D.(a), Bureau of Meteorology Research Centre (a), Pacific Northwest National Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A major field project is planned for Darwin in January to February 2005. Amongst its aims are the study of the structure and evolution of cirrus in monsoonal convection and how it differs from coastal and island storm generated cirrus, providing a data set suitable for CRM and SCM single column modeling efforts and validation of ground based remote sensors. Northern Australia experiences three distinct cloud regimes, a pronounced dry season, a transition season dominated by deep coastal convection and continental squall lines and a monsoon where the convection has a

92

ARM - Publications: Science Team Meeting Documents  

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Formation of Fair-Weather Cumuli Formation of Fair-Weather Cumuli Zhu, P. and Albrecht, B., University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This study includes two related parts. In the first part, The formation of fair-weather cumuli has been analyzed based on both a simple mixed layer model and the data collected from the Atmospheric Radiation Measurement (ARM) program at the Southern Great Plains (SGP) site. By analyzing the conditions for the formation of fair-weather cumuli, we illustrate how different processes, such as the surface heat fluxes, the entrainment process at the boundary layer top, the vertical thermodynamic structure above the boundary layer, and the large-scale subsidence, control the formation of clouds. The results of our analysis show that it is the highly

93

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Improved Surface Emissivities Derived from Multispectral Satellite Data Improved Surface Emissivities Derived from Multispectral Satellite Data Over the ARM SGP Smith, W.L., Jr., Minnis, P., and Young, D.F., NASA Langley Research Center Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Surface emissivity is an important parameter for many remote sensing applications but is difficult to determine because it requires an accurate specification of the surface skin temperature. Because of this, laboratory estimates of the emissivity of pure surfaces are often relied on which generally do not adequately simulate the Earth's natural surfaces as seen from a satellite imager in space. A technique has been developed to derive surface emissivity from clear-sky, multispectral satellite data for three infrared channels (3.9 or 3.7, 10.8 and 12.0 um) common to many of today's

94

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Using ARM Measurements to Evaluate and Improve the Turbulent Boundary-Layer Using ARM Measurements to Evaluate and Improve the Turbulent Boundary-Layer Parameterization in the CCM Zhang, M.H. (a) and Yu, R.C. (a), State University of New York(a) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Three-Dimensional advective tendencies at the Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site, together with diurnal variation of the clear-sky boundary layer atmosphere temperature and moisture, are used to study the down-gradient and "non-local" turbulent transport of heat and moisture in the atmospheric boundary layer. The observational results are then used to evaluate the boundary layer parameterization in the National Center for Atmospheric Research (NCAR) CCM3. It is found that the down-gradient turbulent transport in the CCM3 is

95

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A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over A Climatology of Cloud & Radiative Properties Derived from GMS-5 Data Over the Tropical Western Pacific Nordeen, M.L.(a), Doelling, D.R.(a), Khaiyer, M.M.(a), Rapp, A.D.(a), and Minnis, P.(b), Analytical Services & Materials, Inc. (a), National Aeronautics and Space Administration-Langley Research Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite derived cloud and radiative properties can provide continuous spatial and temporal coverage over the Tropical Western Pacific (TWP). The TWP is an area with few meteorological stations, but is an interesting region in global climate studies. Starting with the Nauru99 Intensive Operational Period (IOP) (June-July 1999), two years of hourly Geostationary Meteorological Satellite (GSM-5) images are used in the

96

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Resolving Models as Scaffolding for Cloud Parameterizations in Resolving Models as Scaffolding for Cloud Parameterizations in Large-Scale Models Pincus, R.(a), Klein, S.A.(b), Hannay, C.(a), and Xu, K.-M.(c), NOAA-CIRES Climate Diagnostics Center (a), NOAA Geophysical Fluid Dynamics Laboratory (b), NASA Langley Research Center (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The treatment of clouds in large scale models has evolved from fixed to diagnostics to predictive as the importance of cloud feedbacks has become clear. In development now are schemes which account for the resolution-dependent sub-grid scale variability in condensate, which is thought to be a significant factor driving ad hoc model tuning. Parameterizations have their roots in theory, experiment, and observational data. It's very hard, though, to observe the four-dimensional structure of

97

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Cloud and Radiative Properties Derived Over the ARM NSA Domain From AVHRR Cloud and Radiative Properties Derived Over the ARM NSA Domain From AVHRR Data Heck, P.W., Nguyen, L., Smith, W. L., Jr., Ayers, J.K., Doelling, D.R., and Spangenberg, D.A., Analytical Services and Materials, Inc.; Minnis, P., and Young, D.F., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) Program's polar sites on the North Slope of Alaska (NSA) measure time series of various atmospheric, cloud and radiative properties over a few selected areas. Satellite data are needed to provide measurements of similar properties between the sites and to estimate the radiation budget at the top of the atmosphere. Over the other ARM sites in the central United States and the Pacific, geostationary

98

ARM - Publications: Science Team Meeting Documents  

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Some Results of the Comparison of the Solar Almucantar Sky Brightness Some Results of the Comparison of the Solar Almucantar Sky Brightness Observed Under the Cirri Conditions and the Calculated One Petrushin, A.G.(b), Shukurov, A.K.(a), Shukurov, K.A.(a), and Golitsyn, G.S.(a), A.M. Obukhov Institute of Atmospheric Physics, RAS (a), Institute of Experimental Meteorology, NPO "Typhoon" (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The selected measurements of the solar almucantar sky brightness were carried out at the Zvenigorod Research Facility of the A.M.Obukhov Institute of Atmospheric Physics (IAPh) RAS using the scanning photometer [1] developed in IAPh. These measurements were took place at the cloudy sky and the clear one and at various optical depth t that was controlled with

99

ARM - Publications: Science Team Meeting Documents  

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Boundary Layer Structure and Fair-Weather Cumulus Characteristics at the Boundary Layer Structure and Fair-Weather Cumulus Characteristics at the TWP ARM Site - Comparisons with Other Tropical and Subtropical Sites Albrecht, B. and Kollias, P., University of Miami Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earths atmosphere over vast areas of the oceans. Boundary layer structures and cloud characteristics observed at Nauru (ARM TWP) during suppressed convective conditions are compared with those observed at other tropical and subtropical sites. Over three years of data from the mm-wavelength cloud radar and ceilometer observations at the Nauru site are analyzed and a statistical description of the field of fair weather cumulus is inferred.

100

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A Continuous Initial Estimate of Cloud Microphysical Structure Using A Continuous Initial Estimate of Cloud Microphysical Structure Using Surface-Based Remote Sensors and Parameterized Microphysics Miller, M.A. and Johnson, K.L., Brookhaven National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Realistic heating rate profiles require an accurate and continuous accounting of cloud microphysical structure. To date, several highly constrained microphysical retrieval algorithms have been designed that operate on specific cloud systems. These algorithms are sufficiently specialized that they are generally applicable in a relatively narrow range of conditions. When these conditions are satisfied, heating profiles can be computed. While it may be possible to link several of these specialized algorithms to produce a semi-continuous description of cloud microphysical

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101

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Effective Diameter in Radiation Transfer: Definition, Applications and Effective Diameter in Radiation Transfer: Definition, Applications and Limitations Mitchell, D. L., Desert Research Institute Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Although the use of an effective radius for radiation transfer calculations in water clouds has been common for many years, the export of this concept to ice clouds has been fraught with uncertainty. A consensus appears to be building that a general definition of effective diameter, Deff, should involve the ratio of the size distribution (SD) volume (at bulk density) to projected area. This work further endorses this concept, describes its physical basis in terms of an effective photon path, and demonstrates the equivalency of a derived Deff definition for both water and ice clouds.

102

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Exploration of Statistical Angular Radiance Closure in Cloudy Skies Exploration of Statistical Angular Radiance Closure in Cloudy Skies Evans, K.F.(a) and Wiscombe, W.J.(b), University of Colorado (a), NASA/Goddard (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Most ARM cloudy sky radiation closure experiments have been performed with broadband fluxes. However, it is difficult to understand the causes of the inevitable discrepencies between the modeled and observed broadband fluxes in those closure experiments because the fluxes are extensively integrated over angle and wavelength. For example, knowing that a particular comparison disagrees by 50 W/m^2 is not particularly helpful in discovering which aspects of cloud remote sensing, radiative transfer, or measurements might be in error. Angular radiance closure compares the measured and

103

ARM - Publications: Science Team Meeting Documents  

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Towards Parameterization of Frontal Mesoscale Circulations and Cloudiness Towards Parameterization of Frontal Mesoscale Circulations and Cloudiness in GCMs Based on ARM Observations Norris, J.R.(a), Weaver, C.P.(b), Gordon, N.D.(c), and Klein, S.A.(d), Scripps Institution of Oceanography (a), Rutgers University (b), Scripps Institution of Oceanography (c), GFDL/NOAA (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloudiness associated with extratropical cyclones is currently poorly represented in GCMs due to incorrect and insufficient representation of subgrid-scale processes. Since this can lead to erroneous cloud-climate feedbacks it is necessary to develop an understanding of the relationship between mesoscale cloud variability and large-scale synoptic forcing that will result in improved parameterization. Observations from the ARM

104

ARM - Publications: Science Team Meeting Documents  

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Improved Methods for Broadband Outdoor Radiometer Calibration (BORCAL) Improved Methods for Broadband Outdoor Radiometer Calibration (BORCAL) Wilcox, S.M., Andreas, A.M., Reda, I., and Myers, D.R., National Renewable Energy Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM Program deploys approximately 100 radiometers to measure broadband solar radiation at stations in the North Slope of Alaska (NSA), Southern Great Plains (SGP), and Tropical Western Pacific (TWP) Cloud and Radiation Testbed (CART) sites. Two calibration events performed at the SGP Radiometer Calibration Facility (RCF) each year maintain radiometer calibration traceability to the World Radiometric Reference and assure reliable and uniform measurements at each CART site. Calibrations are performed using the Radiometer Calibration and Characterization (RCC)

105

ARM - Publications: Science Team Meeting Documents  

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A Comparison of the TSI/WSI Cloud Fraction Estimates at the SGP A Comparison of the TSI/WSI Cloud Fraction Estimates at the SGP Slater, D.W.(a), Long, C.N.(a), and Tooman, T.P.(b), Pacific Northwest National Laboratory (a), Sandia National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Beginning with the installation of the Total Sky Imager (TSI) at the ARM Southern Great Plains site in July, 2000, both the TSI and the Whole Sky Imager (WSI) have operated simultaneously in close proximity to one another. Both systems produce all-sky cloud fraction estimates as part of their primary products, though each uses distinctly different methods to arrive at these estimates. The purpose of this study is to provide a link between the large body of estimates produced by the WSI before the

106

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Mean 3D Radiative Transfer in Cloudy Columns: Further Empirical Evidence Mean 3D Radiative Transfer in Cloudy Columns: Further Empirical Evidence for Propagation Kernels with Power-Law Tails Davis, A.B. (a), Marshak, A. (b), and Barker, H.W. (c), Los Alamos National Laboratory (a), NASA Goddard Space Flight Center (b), Meteorological Service of Canada (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting For reasons of computational efficiency, current radiation parameterizations in GCMs are uniformly based on analytical 2-stream solutions of the 1D integro-differential radiative transfer equation (RTE). This is true even when there is an effort to account for subgrid variability which would normally call for the full 3D RTE. Indeed, state-of-the-art GCM radiation schemes use linear combinations of clear-

107

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A Tale of Two Cirrus A Tale of Two Cirrus Poellot, M.R.(a), Mace, G.G.(b), and Arnott, W.P. (c), University of North Dakota (a), University of Utah (b), Desert Research Institute (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting On May 8, 1998, an orographically-forced cirrus layer overspread the DOE ARM Program's Southern Great Plains site and subsequently became mixed with anvil outflow from thunderstorms. These clouds were sampled in situ by the University of North Dakota Citation aircraft and remotely by an array of ground-based radar, lidar and radiometric instrumentation. The first of two aircraft flights sampled the orographic cirrus through a series of step climbs and spirals. During that time, the cloud was relatively uniform in depth and structure. Shortly after the start of the second flight, the

108

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Investigation of the Aerosol Indirect Effect at the Southern Great Plains Investigation of the Aerosol Indirect Effect at the Southern Great Plains Using Ground Based Remote Sensors and Modeling Feingold, G.(a), Lane, D.(b), and Min, Q.(c), NOAA/ETL (a), Rutgers University (b), ASRC, SUNY Albany (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We are using ground-based remote sensors, supplemented by in situ measurements when available, to explore the aerosol indirect effect in non-precipitating, ice-free clouds. The study uses archived ARM data on sub-cloud aerosol extinction, cloud liquid water path, cloud optical depth, drop effective radius, and boundary layer dynamics to investigate the relationship between aerosol extinction and drop effective radius. Two approaches are being taken: the first is an empirical approach which

109

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Large Eddy Simulations of Fair-Weather Cumulus Case at SGP Site Large Eddy Simulations of Fair-Weather Cumulus Case at SGP Site Zhu, P. and Albrecht, B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A fair-weather cumulus (FWC) case observed on July 6, 1997 at the ARM SGP site is simulated using RAMS model. In this study, we performed a series of numerical experiments to study the basic physics underlying the FWC and the evolution of these clouds in response to the change of external forcings and conditions. The simulations indicate that the evolution of shallow cumuli is very sensitive to the initial vertical structure of moisture and the variation of the entrainment moisture fluxes. Based on the penetration theory, we are able to develop a cloud initiation parameterization using

110

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I Method I Method Potter, G.L.(a), Boyle, J.S.(a), Cederwall, R.T.(a), Fiorino, M.(a), Hnilo, J.J.(a), Phillips, T.J.(a), and Williamson, D.(b), Lawrence Livermore National Laboratory (a), National Center for Atmospheric Research (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We present a methodology to diagnose GCM errors by using NWP analyses to initialize a climate model. The analysis is used as input in conjunction with ARM data to study the initial model drift (6-36 hours) from the observations. Simply put, a climate model is used in a weather forecast mode to see how quickly it drifts from the observed weather and detailed observations provided by the ARM program. This approach can be used to improve parameterizations responsible for models errors on longer time

111

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Combination of the Separation of Variable and the T-matrix Method for Combination of the Separation of Variable and the T-matrix Method for Computing Optical Properties of Spheroidal Particles Schulz, F.M., Eide, H.A., and Stamnes, K., University of Alaska, Fairbanks; Stamnes, J.J., University of Bergen, Norway Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The growing interest in nonspherical particles in recent years has led to significant improvements of various light scattering models for different kinds of nonspherical particles. One approach is to model size-shape distributions of randomly oriented particles by spheroids, whose light scattering properties can be rigorously calculated with the separation of variable method (SVM). The SVM can be used to model particles with spheroidal shapes departing significantly from sphericity. In contrast, the

112

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Empirical Model of Aerosol Uplifting from the Arid Area Empirical Model of Aerosol Uplifting from the Arid Area Gorchakov, G.I., Shukurov, K.A., and Golitsyn, G.S., A.M. Obukhov Institute of Atmospheric Physics, RAS Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The model enables to make the estimates of the vertical fluxes of arid aerosol using measured data of the wind velocity. The model includes the following main elements: 1. The parameterization of the microstructure of the aerosol uplifted from the area. 2. Relationship between wind velocity and the submicron aerosol concentration. 3. The aerosol uplifting rates. It is found that there is the synchronism of the submicron and coarse aerosol fluctuation in convective conditions at the arid area. Vertical turbulent fluxes of the aerosol were determined regarding two regimes of aerosol

113

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Combination of Temperature and Humidity Profiles from a Scanning 5-mm Combination of Temperature and Humidity Profiles from a Scanning 5-mm Radiometer and MWR-Scaled Radiosondes During the 1999 Winter NSA/AAO Radiometer Experiment Westwater, E.R.(a), Leuski, V.(a), and Racette, P.(b), CIRES, University of Colorado/NOAA-ETL (a), NASA/ Goddard Space Flight Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A scanning 5-mm-wavelength radiometer was deployed during an Intensive Operating Periods (IOP) at the Atmospheric Radiation Measurement Program's Cloud and Radiation Testbed (CART) facilities. at the North Slope of Alaska/Adjacent Arctic Ocean site near Barrow, Alaska, during March of 1999. One goal was to evaluate the ability of an oxygen-band 5-mm microwave radiometer for measuring sharp temperature inversions that are typical

114

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International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison International Pyrgeometer and Absolute Sky-scanning Radiometer Comparison at the NSA ARM site Barrow Stamnes, K. (a), Dutton, E.G. (b), Marty, Ch. (c), Michalsky, J.J. (d), Philipona, R. (e), Stoffel, T. (f), Storvold, R. (c), and Zak, B.D. (g), Stevens Institute of Technology, New Jersey (a), NOAA, Climate Monitoring and Diagnostics Laboratory (b), University of Alaska Fairbanks (c), State University of New York at Albany (d), World Radiation Center, Davos, Switzerland (e), National Renewable Energy Lab, Boulder (f), Sandia National Laboratories, Albuquerque (g) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first International Prgeometer and Absolute Sky-scanning Radiometer Comparison (IPASRC I), which was held in fall 1999 at the ARM SGP site in

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Evaluation of Terra Aerosol and Water Vapor Measurements Using ARM SGP Data Evaluation of Terra Aerosol and Water Vapor Measurements Using ARM SGP Data Ferrare, R.A.(a), Brasseur, L.H.(b), Clayton, M.B.(b), Turner, D.D.(c), Remer, L.(d), and Gao, B.C.(e), NASA Langley (a), SAIC (b), Pacific Northwest National Laboratory (c), NASA Goddard (d), Naval Research Laboratory (e) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Measurements from the Department of Energy Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site are used to evaluate atmospheric measurements derived from NASA's Moderate-Resolution Imaging Spectroradiometer (MODIS) and Multiangle Imaging Spectroradiometer (MISR) sensors on board the Terra satellite. MODIS and MISR AOT retrievals are evaluated using ARM SGP Cimel Sun photometer and MultiFilter Rotating

116

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Influence of Smoke over Haze on Heating Rate and Radiative Forcing: Influence of Smoke over Haze on Heating Rate and Radiative Forcing: Consistency of Measurements from Aircraft, Ground and Satellite Vant-Hull, B., Taubman, B.F., and Li, Z., Department of Meteorology, University of Maryland, College Park Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting On 8 July 2002, heavy and widespread smoke advected from fires in Quebec to the eastern seaboard of the US, rending an interesting aerosol scenario with strong absorbing aerosols (smoke) overlying scattering aerosols (industrial pollution). An aircraft equipped with a variety of aerosol and chemical sensors flew over five locations in Virginia and Maryland. This study evaluates the consistency of aerosol measurements made by a suite of air-borne, space-borne and ground-based instruments and evaluates the

117

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A New Approach for Computing Single Scattering Properties of Ice Clouds A New Approach for Computing Single Scattering Properties of Ice Clouds Using a Size-Shape Distribution of Spheroidal Particles Eide, H.A., and Stamnes, K., University of Alaska, Fairbanks; Stamnes, J.J., University of Bergen, Norway; Schulz, F.M., University of Rochester Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Clouds are of paramount importance for the global energy balance and hence for our climate. In global circulation models (GCMs), designed to predict future climate, the effects of clouds are commonly based on the scattering and absorption properties of spherical particles. At high latitudes as well as at high enough altitudes anywhere on our planet, clouds frequently consist of ice particles that are far from spherical in shape. Ice

118

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Spurious Oscillation in Simulating Boundary-Layer Cumulus Clouds with Spurious Oscillation in Simulating Boundary-Layer Cumulus Clouds with Third-Order Turbulence Closure Models Fischer, M.L.(a), Billesbach, D.P.(b), Riley, W.J.(a), Berry, J.A.(c), and Torn, M.S.(a), E.O. Lawrence Berkeley National Laboratory (a), University of Nebraska (b), Carnegie Institution of Washington (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Spatial heterogeneity in the mass and energy fluxes in the Southern Great Plains are controlled by a combination of driving variables (e.g. climate, topography and soil, vegetation, and land use and management). Accurate estimation of landscape-averaged ecosystem-atmosphere exchange hence suggests the need for predictive models tested with extensive ground based measurements and/or a measurement method with regional coverage. This is

119

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Scale Analysis of Spatial and Temporal Variability of Aerosol Optical Scale Analysis of Spatial and Temporal Variability of Aerosol Optical Properties Over the SGP Site based on MFRSR and MODIS Data Alexandrov, M.D.(a,b), Marshak, A.(b), Cairns, B.(a,b), Lacis, A.A.(b), and Carlson, B.E.(b), Columbia University (a), NASA (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We present scale-by-scale analysis of variability of atmospheric aerosol optical thickness (AOT) and (preliminary) of the Angstrom exponent. This analysis is based on retrievals from Multi-Filter Rotating Shadowband Radiometers (MFRSRs) and from Moderate Resolution Imaging Spectroradiometer (MODIS) satellite data. This type of analysis has been applied to a remote sensing aerosol dataset for the first time. The MFRSR data were collected

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Using Time-Height Cross-Sections of Cumulus Cloud Fields for Solar Using Time-Height Cross-Sections of Cumulus Cloud Fields for Solar Radiative Transfer Pincus, R.(a), Hannay, C.(a), and Evans, K.F.(b), NOAA-CIRES Climate Diagnostics Center (a), University of Colorado (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting How much must be known about a cloud field in order to accurately compute the reflected and transmitted flux? Given our limited abilities to measure the time-evolving three-dimensional structure of clous, and the high cost of making three-dimensional (3D) radiative transfer computations, we would like to determine the accuracy of various approximations used to convert remote sensing observations to domain averaged solar fluxes. We use highly resolved (50 m, 1 min) clouds fields from large eddy simulations of

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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121

ARM - Publications: Science Team Meeting Documents  

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Results of the Atmospheric Aerosol Condensation Activity Studies Results of the Atmospheric Aerosol Condensation Activity Studies Isakov, A.A. and Golitsyn, G.S., A.M.Obukhov Institute of Atmospheric Physics Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Some new results are presented. of investigations of optical and microphysical characteristics of the atmospheric surface layer aerosol by means of spectropolarimeter The daily measurements were carried out in February - April 2000 at the Zvenigorod Scientific Station of the Institute within the Institut's ARM measurements Program. The spectropolarimeter measured the spectral dependencies of the polarization components of direct scattering coefficient D at three angles j = 450,900,1350 in spectral region l= 0.4 -0.75 mcm. During the measurement period about 500 records

122

ARM - Publications: Science Team Meeting Documents  

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Fair - Weather Cumuli Climatology at the TWP ARM Site Fair - Weather Cumuli Climatology at the TWP ARM Site Kollias, P. and Albrecht B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earths atmosphere over vast areas of the oceans. Over two years of data from the mm-wavelength cloud radar, at the Nauru (TWP-ARM) site, are analyzed and a statistical description of the field of fair weather cumulus is inferred. Frequency diagrams of cloud thickness, fractional coverage, updraft-downdraft magnitudes and cloud reflectivity are calculated for four different classes of fair weather cumuli. Seasonal patterns are identified and their relationship to the thermodynamic structure of the boundary layer (wet-dry

123

ARM - Publications: Science Team Meeting Documents  

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Retrieval of Cirrus Particle Sizes Using a Spit-Window Technique: A Retrieval of Cirrus Particle Sizes Using a Spit-Window Technique: A Sensitivity Study Fu, Q. (a) and Sun, W.B. (b), University of Washington (a), Dalhousie University (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The 8 - 12 um atmospheric window is an important spectral region for the remote sensing of the earth-atmosphere system. Since clouds are the major regulator of the global radiative energy budget, numerous methods have been developed to detect clouds and cloud properties based on satellite observations. Among them are the split-window techniques which are particularly useful for remote sensing of cirrus clouds. Owing to the large spectral variation of ice's imaginary refractive index over the atmospheric window, one can infer the effective ice particle sizes of cirrus clouds

124

ARM - Publications: Science Team Meeting Documents  

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Passive Remote Sensing of Aerosol Properties from Aircraft Measurements Passive Remote Sensing of Aerosol Properties from Aircraft Measurements Over the SGP Cairns, B. (a), Lacis, A.A. (b), Carlson, B.E. (b), Alexandrov, A. (a), and Barnard, J.C. (c), Columbia University (a), NASA Goddard Institute for Space Studies (b), Pacific Northwest National Laboratory (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The principal difficulties in retrieving aerosol loadings and microphysical properties using passive remote sensing measurements over land surfaces are the significant spectral and spatial variations in the observed intensities that are caused by the land surface. The may also be of use in remote sensing of the surface, being indicative of its roughness, or in the case of vegetation its leaf inclination distribution. It is believed that the

125

ARM - Publications: Science Team Meeting Documents  

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Diurnal Cycle of Cloud Microphysical Properties from GOES Over the ARM Diurnal Cycle of Cloud Microphysical Properties from GOES Over the ARM Southern Great Plains Minnis, P., and Young, D.F., National Aeronautics and Space Administration-Langley Research Center; Smith, W.L., Jr., and Heck, P.W., Analytical Services and Materials, Inc. Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud coverage, height and optical depth have been derived from the Geostationary Operational Environmental Satellite (GOES) data taken over the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) domain since 1994. While these parameters provide a valuable basis for understanding the interaction of clouds with the radiation budget, they do not provide a complete characterization of the cloud field. Phase

126

ARM - Publications: Science Team Meeting Documents  

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Evaluation of Simulated Clouds in the Community Atmospheric Model (CAM2): Evaluation of Simulated Clouds in the Community Atmospheric Model (CAM2): Over the Globe and at the ARM Site Zhang, M.H.(a) and Lin, W.Y.(a), Stony Brook University Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We first compare seasonal climatology of the global distribution of ISCCP-type clouds in the NCAR CAM2 with observations from ISCCP. Model deficiencies in simulated clouds are highlighted. Model capability of simulating the observed response of different cloud types to ENSO is also discussed. We then use ARM cloud measurements at the ARM SGP to compare with the CAM cloud statistics at the same site. It is shown that several model deficiencies in the global cloud distribution are also present at the ARM site. Relevance of these model deficiencies to the interpretation of

127

ARM - Publications: Science Team Meeting Documents  

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Intial Results from an Automated High Spectral Resolution Lidar Intial Results from an Automated High Spectral Resolution Lidar Eloranta, E.W., University of Wisconsin-Madison Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An automated High Spectral Resolution Lidar constructed at the University of Wisconsin is nearly ready for an Arctic deployment. It is designed for remote operation as an Internet appliance requiring only minimal onsite attention. The system is currently installed in our roof top laboratory and is operating continuously as part of an extended shakedown test. Several months of data have been collected and archived on our web site (see arctic HSRL at "lidar.ssec.wisc.edu"). A web interface to browse and visualize data is provided along with tools to generate calibrated plots of

128

ARM - Publications: Science Team Meeting Documents  

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The Use of Performance Metrics to Enhance Meteorological Operations The Use of Performance Metrics to Enhance Meteorological Operations Jakob, C.(a), Pincus, R.(b), Hannay, C.(b), and Xu, K.-M.(c), BMRC (a), NOAA/CIRES CDC (b), NASA Langley (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It is highly desirable to use cloud radar data in the evaluation of model simulations of clouds at various scales. Unfortunately there is an inherent mismatch between the spatial and temporal scales of the models and the observations. Usually this mismatch is overcome by time-averaging the observations and declaring the averages as representative for a given model spatial scale. Here we explore an alternative method of model evaluation that is based on the interpretation of model cloud predictions as probabilistic forecasts at the observation point. First we contrast

129

ARM - Publications: Science Team Meeting Documents  

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Comparison of MM5 Forecast Shortwave Radiation with ARM SGP Data Comparison of MM5 Forecast Shortwave Radiation with ARM SGP Data Armstrong, M.A. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The performance of the Pennsylvania State University-National Center for Atmospheric Research Mesoscale Model 5 (MM5), in particular the shortwave downwelling (SW) flux calculations, is examined in this paper. Selected quantities output from the MM5 were compared with ARM SGP data gathered during the SCM intensive observation period (IOP) from June 18 to July 18, 1997. MM5 was run 29 times with a forecast length of 24 hours. The data were saved and then compared to radiosonde and pyranometer data. SW flux calculated from the MM5 deviated severely from that observed at the SGP

130

ARM - Publications: Science Team Meeting Documents  

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Narrowband, Narrow Field-of-View Fast Infrared Filter Radiometry: Future Narrowband, Narrow Field-of-View Fast Infrared Filter Radiometry: Future Operation at CART Sites and Some Aspects of Water Vapor Absorption and Emission Platt, C.M.R. (a), Bennett, J.A. (b), Petraitis, B. (b), Austin, R.T. (a), and Young, S.A. (b), Colorado State University, Fort Collins (a), CSIRO Atmospheric Research, Aspendale, Australia (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting An infrared filter radiometer is being installed at the SGP CART site early in 2001. The radiometer is based on a previous Mark I version that was used successfully in field experiments in tropical Australia. The radiometer has a narrow field-of-view, compatible with lidar, is fast, at one-second-time constant, and has three channels at 8.62, 10.86 and 12.12 microns. It

131

ARM - Publications: Science Team Meeting Documents  

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Comparison of ARM Cloud Property Observations with CRM Simulations Comparison of ARM Cloud Property Observations with CRM Simulations Xu, K.-M. (a), Cederwall, R.T. (b), Xie, S.C. (b), and Yio, J.J. (b), NASA Langley Research Center (a), Lawrence Livermore National Laboratory (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The cloud property observations are compared with cloud-resolving model simulated cloud properties in this study, using the Summer 1997 Intensive Observation Period (IOP) data of the ARM program. Midlatitude continental cumulus convection are simulated by seven 2-D and two 3-D cloud resolving models (CRMs), driven by observed large-scale advective temperature and moisture tendencies, surface turbulence fluxes, and radiative heating profiles during three subperiods of the Summer 1997 IOP. Each subperiod

132

ARM - Publications: Science Team Meeting Documents  

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Radiative Effects of Cloud Inhomogeneity and Geometric Association over the Radiative Effects of Cloud Inhomogeneity and Geometric Association over the Tropical Western Pacific Warm Pool Jensen, M.P.(a) and DelGenio, A.D.(b), Department of Applied Physics and Applied Mathematics, Columbia University, NASA GISS (a), NASA GISS (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The radiative and microphysical characteristics for several precipitating anvil systems observed by the TRMM satellite over the Manus or Nauru Island ARM sites are modelled. Reflectivity data from the TRMM Precipitation radar and GMS satellite infrared radiometer measurements are used to parametrize the three-dimensional cloud microphysics of each precipitating cloud system. These parameterized cloud properties are used as input for a

133

ARM - Publications: Science Team Meeting Documents  

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The North Slope of Alaska CART and Arctic Change 2002 The North Slope of Alaska CART and Arctic Change 2002 Zak, B.D., Zirzow, J.A., and Einfeld, W., Sandia National Laboratories Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO) Cloud and Radiation Testbed (CART), operational since spring of 1998, is maturing just in time for the push to understand the far-reaching changes in the Arctic presently occurring. From the mid 1970s to the mid 1990s, arctic sea ice areal coverage has decreased about 5%, but ice thickness appears to have decreased about 40%. In addition, temperature and salinity patterns in the Arctic Ocean and the associated thermohaline circulation have been affected, as have many other climate-related processes. An Arctic

134

ARM - Publications: Science Team Meeting Documents  

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Characterizing and Filling Temporal and Spatial Gaps in Time-Aggregated ARM Characterizing and Filling Temporal and Spatial Gaps in Time-Aggregated ARM Measurements for Use in Carbon Models Hargrove, W.W.(a), Brandt, C.C.(a), Jager, H.I.(a), Hanan, N.(b), and McCord, R.A.(a), Oak Ridge National Laboratory (ORNL)(a), Natural Resource Ecology Laboratory (NREL)(b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data gaps limit the use of ARM data as input for simulation models. Because the ARM program records actual measurements, circumstances unavoidably arise when instrument and storage failures create gaps in the temporal stream of measurements. Most temporal gaps are short in duration and affect only one or a few related parameters. However, some rare failures, such as wide-area power outages or ice storms, occasionally affect many measurement

135

ARM - Publications: Science Team Meeting Documents  

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Mapping of Surface Reflectance over the Southern Great Plains Region from Mapping of Surface Reflectance over the Southern Great Plains Region from Multiple Satellites Trishchenko, A.P.(a), Li, Z. (a,b), and Park, W. (a), Canada Centre for Remote Sensing, Ottawa, Canada (a), Now at ESSIC, Department of Meteorology, College Park (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The ground-based ARM observations are limited to a handful of locations sparsely distributed in the South Great Plains (SGP). Mapping of surface narrow and broadband albedos are necessary for modeling and remote sensing studies to better describe the spatial variability of surface boundary conditions. In this study, we present surface narrowband and broadband reflectance, as well as the normalized difference vegetation index over the

136

ARM - Publications: Science Team Meeting Documents  

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Three-Dimensional Radiative Transfer Computations to Complement the ARM Three-Dimensional Radiative Transfer Computations to Complement the ARM Broadband Heating Rate Profile (BBHRP) Value Added Product (VAP) OHirok, W.(a), Gautier, C.(a), and Miller, M.A.(b), University of California, Santa Barbara (a), Brookhaven National Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A core programmatic goal of ARM is to understand how cloud variability is associated with radiative flux variability. A major effort among the ARM working groups is now underway to produce the Broadband Heating Rate Profile (BBHRP) Value Added Product (VAP). The heating rate profiles are derived from Rapid Radiative Transfer Models (RRTMs) that use best estimates of cloud characteristics, gaseous profiles, aerosols and surface

137

ARM - Publications: Science Team Meeting Documents  

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The Impact of a Revised Treatment of Cirrus Microphysics on the Radiation The Impact of a Revised Treatment of Cirrus Microphysics on the Radiation Budget of the Unified Model Edwards, J.M. (a), Mitchell, D.L. (b), Ivanova, D. (b), and Wilson, D.R. (a), Met Office, Hadley Centre for Climate Prediction and Research (a), Desert Research Institute (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Unified Model is used for both NWP and climate simulations at the Met Office. A parametrization of ice crystals as planar polycrystals was recently introduced into the climate and mesoscale NWP versions of this model, resulting in improvements to the radiation budget and a reduction in the upper tropospheric cold bias. Based on field observations, the size distribution is taken as bimodal and is characterized by a mean maximum

138

ARM - Publications: Science Team Meeting Documents  

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Uncertainties in the Line Intensities in the 1130 nm Band of Water Vapor Uncertainties in the Line Intensities in the 1130 nm Band of Water Vapor Giver, L.P. (a), Pilewskie, P. (a), Gore, W.J. (a), Chackerian, Jr., C. (b), Varanasi, P. (c), Freedman, R.S. (d), and Bergstrom, R. (e), NASA-Ames Research Center (a), SETI Institute (b), State University of New York at Stony Brook (c), Space Physics Research Institute (d), Bay Area Environmental Research Insitute (e) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Belmiloud et al (GRL 27, 3703-3706 (2000)) have recently asserted that the line intensities in the 1130 nm band of water vapor band listed in the HITRAN database are much too weak. Giver et al (JQSRT 66, 101-105(2000)) pointed unit-conversion errors out in the intensity data previously appearing in the HITRAN database and corrected the intensity data so that

139

ARM - Publications: Science Team Meeting Documents  

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Evaluation of Remote Sensing of the Single Scattering Albedo of Aerosols Evaluation of Remote Sensing of the Single Scattering Albedo of Aerosols During the Aerosol IOP Cairns, B.(a), Gianelli, S.M.(a), Carlson, B.E.(b), and Lacis, A.A.(b), Columbia University (a), NASA GISS (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting It has long been known that diffuse sky radiance and irradiance measurements are sensitive to the single scattering albedo of aerosols. The main difficulties in exploiting this sensitivity to try and remotely estimate the single scattering albedo of aerosols are uncertainties in the albedo and bidirectional reflectance distribution function of the surface and uncertainties in the calibration of the instruments used to make the measurements. The surface albedo measurements that are currently being

140

ARM - Publications: Science Team Meeting Documents  

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Evaluation of a Bulk Cloud Microphysics Model in Simulating Low-Level Evaluation of a Bulk Cloud Microphysics Model in Simulating Low-Level Arctic Mixed-Phase Clouds Using a New Single-Column Model Morison, H., Curry, J.A., and Mirocha, J., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The MM5 NCAR/Penn State mixed-phase bulk microphysical parameterization is evaluated using a new single column model (ARCSCM) in the context of arctic low-level mixed-phase clouds. ARCSCM is developed from the Arctic Regional Climate System Model (ARCSyM). Three mixed-phase clouds over SHEBA in May 1998 are simulated using the MM5 parameterization. Liquid water path (LWP) is underpredicted by ~ 75% compared to observations for the two cases that have a significant ice content, while LWP is accurately predicted (within

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141

ARM - Publications: Science Team Meeting Documents  

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Case Studies of Water Vapor Variability During the International H20 Case Studies of Water Vapor Variability During the International H20 Project 2002 Using GPS Braun, J., Rocken, C., and Kuo, Y.H., UCAR/COSMIC Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The International H20 Project 2002 (IHOP_2002) was a field experiment located in the United States Southern Great Plains whose primary objective was to improve warm season rainfall prediction through the collection of precise observations of the water cycle and their assimilation into numerical weather models. As part of a wide range of observing systems, more than 40 Global Positioning System (GPS) stations were operating in the experiment region during IHOP_2002. We present an analysis of the evolution of the water vapor field for significant storms that were captured by the

142

ARM - Publications: Science Team Meeting Documents  

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An Improved Technique for Producing MPL Backscatter Profiles Properly An Improved Technique for Producing MPL Backscatter Profiles Properly Characterized at All Ranges Flynn, C.J. and Powell, D.M., Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting An important part of ARM's mission is the quantitative study of the effect of clouds and aerosol on radiative transfer and the energy budget. Micropulse Lidar (MPL) are an integral component of the ARM Program's measurement strategy with one deployed at each of the four major sites (SGP, TWP1, TWP2, and NSA). The MPL system is capable of producing vertical profiles of cloud and aerosol from ground level to the top of the atmosphere. However, the legitimacy of these profiles is sensitive to the calibration and system corrections of the individual MPL. In particular,

143

ARM - Publications: Science Team Meeting Documents  

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The Parameterization of Shallow Cumulus Convection The Parameterization of Shallow Cumulus Convection Zhu, P. and Albrecht, B.A., University of Miami Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A successful representation of shallow cumulus convection in GCMs requires two parameterizations: one for calculating the subgrid fluxes of heat, moisture, and momentum; and the other for estimating the cloud cover and the associated cloud liquid water. Two common schemes used for these two parameterizations are the mass flux approach and the distribution approach such as SDM's (Sommeria, Deardorff, and Mellor) scheme, respectively. In this study, we verified the assumptions that lead to these schemes using LES data. The analyses indicate that the assumptions may not be appropriate for shallow cumulus convections, especially those over land when diurnal

144

ARM - Publications: Science Team Meeting Documents  

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Validation of CERES/MODIS Cloud Property Retrievals Using Ground-Based Validation of CERES/MODIS Cloud Property Retrievals Using Ground-Based Measurements Obtained at the DOE ARM SGP Site Dong, X.(a), Minnis, P.(b), Sun-Mack, S.(b), and Mace, G.G.(a), University of Utah (a), NASA Langley Research Center (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud macrophysical and microphysical properties derived from the NASA TERRA (EOS-AM) Moderate Resolution Spectroradiometer (MODIS) as part of the Clouds and the Earth's Radiant Energy System (CERES) project during November 2000-June 2001 are compared to simultaneous ground-based observations. The ground-based data taken by the Atmospheric Radiation Measurement (ARM) Program are used as "ground truth" data set in the validation of the CERES cloud products and to improve the CERES daytime and

145

ARM - Publications: Science Team Meeting Documents  

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Dust-Climate Interactions: A Conceptual Model Dust-Climate Interactions: A Conceptual Model Shell, K. M. and Somerville, R. C. J., Scripps Institution of Oceanography, University of California, San Diego Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Paleoclimatic evidence strongly suggests that airborne mineral dust can be a climatically important atmospheric aerosol, but little is known quantitatively about the mechanisms of dust-climate interactions. We have developed a conceptual global model with which to study processes and feedbacks within the dust-climate system. We solve numerically for equilibrium climate states defined by temperature as a function of latitude. Our zonally averaged model includes both an atmosphere and a surface that becomes ice-covered at sufficiently low temperatures. We

146

ARM - Publications: Science Team Meeting Documents  

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Comparison of Daily Broadband Surface Albedos Measured at Six Extended Comparison of Daily Broadband Surface Albedos Measured at Six Extended Facilities in the ARM Southern Great Plains Cloud and Radiation Testbed Hamm, K.G., University of Oklahoma Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting An analysis of time series of daily hemispherical broadband surface albedo for 1998-1999 from six ARM Extended Facilities has been performed. The results show that the mean annual albedo differs by as much as 30% among the six sites. The annual range of daily albedos also varies among the sites. For example, albedos measured at the tallgrass prairie near Pawhuska, OK show a range of daily albedo between 0.15 and 0.20 for 1998, while daily albedos measured at a grazed pasture near Cordell, OK for the same time period have a range between 0.17 and 0.24 (or 40% higher than at

147

ARM - Publications: Science Team Meeting Documents  

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Intraseasonal Variation Observed from Multi-Infrared Channel Intraseasonal Variation Observed from Multi-Infrared Channel Inoue, T., Meteorological Research Institute Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Intraseasonal variations (MJO) of convective cloud, sea surface temperature (SST) and water vapor information are studied using three infrared channels (6.7, 11, 12 um). Split window(11 and 12 um) can classify optically thin ice cloud and optically thick cloud. Further SST and water vapor information can be retrieved from the split window over the cloud free region. We can estimate upper level relative humidity from the 6.7 um data. Composite analysis of cloud type associated with the intraseasonal variation during May 1998 showed the horse shoe shape deep convective cloud area near the center of the MJO, cirrus type cloud area to the west of the

148

ARM - Publications: Science Team Meeting Documents  

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Solar Radiative Influences on Drop Growth Solar Radiative Influences on Drop Growth Harrington, J.Y, Hartman, C., and Verlinde, J., The Pennsylvania State University Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The offsetting effects of solar heating and infrared cooling on the vapor-depositional growth of cloud droplets is investigated. In this study, a marine stratocumulus cloud was simulated by using a large eddy simulation (LES) model and a detailed microphysical bin model. Including infrared cooling as well as solar heating had two effects. The first effect is related to the fact that vapor-depositional growth of drops is radius dependent - solar heating effects dominated at larger drop sizes (> 100 microns) and infrared cooling effects dominated at smaller drop sizes

149

ARM - Publications: Science Team Meeting Documents  

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Aerosol Indirect Effect: Evidence from the ARM SGP and NSA Sites Aerosol Indirect Effect: Evidence from the ARM SGP and NSA Sites Penner, J.E.(a), Chen, Y.(a), and Dong, X.(b), University of Michigan (a), University of North Dakota (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM SGP site and the NSA site provide a unique opportunity to examine the effects of aerosols on cloud optical properties because the aerosol concnetrations at each site span the range between polluted and clean conditions. Here, we examine whether the effect of aerosols on clouds can adequately explain the observed relationship between the liquid water path observed at each site and the cloud optical depth required to determine the observed surface flux. Aerosol number concentration at the SGP site was determined from the observed CN number concentration as well as the

150

ARM - Publications: Science Team Meeting Documents  

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On the Uncertainty of Inferring Absolute Cloud Fraction from Time Series of On the Uncertainty of Inferring Absolute Cloud Fraction from Time Series of Narrow Field of View Observations Ma, Y.-T.(a) and Ellingson, R. G.(b), University of Maryland at College Park (a), Florida State University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting One way to parameterize longwave 3-D cloud effects is to relate the various cloud properties to a statistical cloud field parameter called the Probability of Clear Line of Sight (PCLS) and then to a simple integral parameter - the effective cloud fraction. In our ongoing study, we are trying to test various PCLS models with ARM cloud observations. Many of the cloud properties must be inferred from time series of zenith observations, whereas spatially averaged quantities are the ones desired. What are the

151

ARM - Publications: Science Team Meeting Documents  

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Inferring Optical Depth of Broken Clouds above Green Vegetation. Part Inferring Optical Depth of Broken Clouds above Green Vegetation. Part I:Methodology for Surface- and Aircraft-based Observations Barker, H.W. (a), Marshak, A. (b), Pavloski C.F. (c), and Clothiaux E.E.(c), Environment Canada (a), UMBC/JCET (b), The Pennsylvania State University (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A method for inferring cloud optical depth is introduced and assessed using simulated radiometric measurements produced by a 3D Monte Carlo algorithm acting on fields of broken, single-layer, boundary layer clouds. These fields contain numerous small cumuli and broken stratiform clouds and represent demanding tests. The method, which resembles the Normalized Difference Cloud Index, utilizes the DISORT radiative transfer model and

152

ARM - Publications: Science Team Meeting Documents  

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The Influence of Clouds, Aerosols, and Water Vapor on the Discrepancy The Influence of Clouds, Aerosols, and Water Vapor on the Discrepancy Between Modeled and Observed Atmospheric Absorption Arking, A. Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Daily mean estimates of atmospheric absorption of solar radiation at the ARM/SGP site are obtained for 36 days during the fall season in 1995 and 1997. They are based on broadband observations of surface flux and satellite estimates of TOA albedo. Mean absorption in the vertical column is 0.246 (expressed as a ratio with respect to the incident flux at TOA). For 13 of the days, which are entirely free of clouds, the mean absorption is 0.245. Although clouds have no systematic effect on absorption, they do have an effect---sometimes causing an increase and sometimes a decrease

153

ARM - Publications: Science Team Meeting Documents  

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Water Vapor Profiling During WVIOP#3 and AFWEX2000 Using Ground-Based Water Vapor Profiling During WVIOP#3 and AFWEX2000 Using Ground-Based Differential Absorption Lidar Boesenberg, J. (a), Linne, H. (a), Jansen, F. (a), Ertel, K. (a), Lammert, A. (a), and Wilkerson, T. (b), Max-Planck-Institut fuer Meteorologie, Hamburg (a), Utah State Univerity (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The differential absorption lidar (DIAL) system of the MPI participated in both the WVIOP#3 and AFWEX2000 experiments. It was operated on 11 days during each experiment for periods up to 12 hours per day. The time slot for these measurements was 12 noon to 2am due to FAA restrictions. The measurements were focussed on the day-night-transition and the following hours during WVIOP#3 and on LASE overflights during AFWEX. The MPI DIAL

154

ARM - Publications: Science Team Meeting Documents  

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Importance and Parameterization of Longwave Radiative Scattering by Mineral Importance and Parameterization of Longwave Radiative Scattering by Mineral Aerosols Gautier, C., Dufresne, J.-L., and Ricchiazzi, P.J., University of California Santa Barbara Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The effect of scattering is not always included in longwave models of radiative forcing due to mineral aerosols. In this presentation, we quantify and highlight the importance of scattering in the longwave domain for a wide range of conditions commonly encountered during dust events. We show that the neglect of scattering may lead to an underestimate of longwave aerosol forcing. This underestimate may reach 50% of the forcing at the top of atmosphere and 15% at the surface for aerosol effective radius greater than a few tenths of a micron. In contrast, the heating rate

155

ARM - Publications: Science Team Meeting Documents  

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Comparisons Between Measured and Modeled Longwave Irradiances During Arctic Comparisons Between Measured and Modeled Longwave Irradiances During Arctic Winter: Results from the Second International Pyrgeometer and Absolute Sky-Scanning Radiometer Comparison (IPARSC-II) Marty, Ch.(a), Storvold, R.(a), Philipona, R.(b), Delamere, J.(c), Dutton, E.(d), Michalsky, J.(e), Stamnes, K.(f), Eide, H.(f), and Stoffel, T.(g), Geophysical Institute, University of Alaska Fairbanks (a), World Radiation Center, Davos, Switzerland (b), Atmospheric and Environmental Research, Boston (c), Climate Monitoring and Diagnostics Laboratory NOAA, Boulder (d), State University of New York at Albany (e), Stevens Institute of Technology, Hoboken, New Jersey (f), National Renewable Energy Laboratory, Golden (g) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting

156

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Cloud Property Retrieval Using Combined Ground-Based Remote Sensors Cloud Property Retrieval Using Combined Ground-Based Remote Sensors Wang, Z. and Sassen, K., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurements Program (ARM) is making measurements with diverse ground-based remote sensors. To provide more complete and accurate cloud information, it is necessary to combine diverse measurements because of the different capabilities of various sensors. In this study, a remote sensing cloud detection algorithm has been developed that can differentiate between various atmospheric targets such as ice and water clouds, virga, precipitation, and aerosol layers. Cloud type and macrophysical properties are identified by combining ground-based polarization lidar, millimeter wave radar, infrared radiometer, and dual

157

ARM - Publications: Science Team Meeting Documents  

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The Radiative Properties of Uniform and Broken Stratus: An Observational The Radiative Properties of Uniform and Broken Stratus: An Observational and Modelling Study Utilizing the Independent Column Approximation for Solar Radiative Transfer Clothiaux, E.E., The Pennsylvania State University; Barker, H.W., Atmospheric Environment Service of Canada; Kato, S., Hampton University; Dong, X., Analytical Service and Materials, Inc. Ackerman, T.P., The Pennsylvania State University; Liljegren, J.C., Ames Laboratory Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Millimeter-Wave Cloud Radar (MMCR) has operated continuously at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) site since November 11, 1996. As yet, much of the early data has not been calibrated correctly and insect contamination in the boundary layer is

158

ARM - Publications: Science Team Meeting Documents  

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An Overview of ARM Satellite Cloud and Radiation Budget Datasets An Overview of ARM Satellite Cloud and Radiation Budget Datasets Minnis, P.(a), Nguyen, L.(a), Smith Jr., W.L.(a), Doelling, D.R.(b), Heck, P.W.(c), Khaiyer, M.M.(b), Palikonda, R.(b), Young, D.F.(a), Spangenberg, D.A.(b), Chakrapani, V.(b), Walter, B.J.(b), and Nowicki, G.D.(b), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b), CIMSS/University of Wisconsin-Madison (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The derivation of cloud properties from satellite data has been greatly enhanced by the availability of new multispectral satellite imagers, the validation power of ARM instruments and IOPs, and increases in computer processing speeds. Likewise, the recent availability of broadband radiation

159

ARM - Publications: Science Team Meeting Documents  

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AERI-Lidar Retrievals of Ice Cloud Physical Properties, Including the First AERI-Lidar Retrievals of Ice Cloud Physical Properties, Including the First Estimates of Photon Tunneling Contributions to Absorption Mitchell, D.L.(a) and DeSlover, D.H.(b), Desert Research Institute (a), Cooperative Institute for Meteorological Satellite Studies, University of Wisconsin (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Emitted Radiance Interferometer (AERI) and the High Spectral Resolution Lidar (HSRL) have been used to determine the spectral dependence of alpha in the window region (8.5-12.5 micron wavelength), where alpha is the ratio of optical depth at a visible wavelength to infrared absorption optical depth for a cirrus cloud. Using alpha and cloud emissivity measurements, it is generally possible to retrieve effective

160

ARM - Publications: Science Team Meeting Documents  

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High Latitude Cloud Microphysical Properties from FTIR Data High Latitude Cloud Microphysical Properties from FTIR Data Lubin, D., Scripps Institution of Oceanography Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM AERI instruments record downwelling radiance spectra with sufficient radiometric calibration to enable the retrieval of important cloud microphysical properties. This poster will describe how radiative transfer simulations that include cloud thermodynamic phase (liquid water, ice, mixed phase) can be utilized with Fourier Transform Infrared (FTIR) spectroradiometer data. The presence of the ice phase in cloud alters the slope of the brightness temperature spectrum between 800 - 1200 inverse centimeters, such that ice can often be detected. The AERI near infrared channel also may have potential for cloud phase as discrimination.

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161

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Links Between Mesoscale Dynamics and Cloud Water in High-Resolution March Links Between Mesoscale Dynamics and Cloud Water in High-Resolution March 2000 RAMS Simulations Weaver, C.P.(a), Gordon, N.D.(b), Norris, J.R.(b), and Klein, S.A.(d), Rutgers University (a), Scripps Institution of Oceanography (b), NOAA/GFDL (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Regional Atmospheric Modeling System (RAMS) is applied as a tool for improving our understanding of sub-GCM-grid-scale cloudiness. Specifically, we use high-resolution simulations of March 2000 IOP days to identify the important mesoscale dynamic and thermodynamic controls on cloud water distributions. The resolution dependence of the simulated results is also investigated as a way to identify potential deficiencies in coarser-resolution models, such as GCMs. The main finding from the

162

ARM - Publications: Science Team Meeting Documents  

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A Compact Millimeter-Wave Radar for UAV Applications A Compact Millimeter-Wave Radar for UAV Applications Bambha, R., Carswell, J., and Swift, C., University of Massachusetts Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Assembly of the Compact Millimeter-wave Radar (CMR) has been completed at the University of Massachusetts, and ground-based cloud measurements have been acquired. The CMR is a 95-GHz solid-state radar intended for airborne cloud measurements. Funding for the project was provided by the Atmospheric Radiation Measurement-Unmanned Aerospace Vehicle (ARM-UAV) program with the eventual goal of developing a radar capable of operating on the Altus UAV. Simultaneous measurements made by CMR and the Cloud Profiling Radar System (CPRS) have been made to evaluate CMR's performance. CPRS is a larger

163

ARM - Publications: Science Team Meeting Documents  

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Cloud Height Statistics Derived from ARM Millimeter Cloud Radar Cloud Height Statistics Derived from ARM Millimeter Cloud Radar Kato, S. (a), Clothiaux, E.E. (b), and Xu, K.-M. (c), Hampton University (a), Pennsylvania State University (b), NASA Langley Research Center(c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The probability of occurrence of the cloud top height for a given altitude and relation to the geometrical cloud thickness are derived from radar reflectivity factor taken by a millimeter cloud radar operated at ARM Oklahoma site. Statistics derived using July 1997 data show that the cloud top is likely to occur at 12 km and clouds extend to the lower troposphere. Statistics derived using January 1998 data show that single layer boundary layer clouds are dominant. There is another cloud top peak, although less

164

ARM - Publications: Science Team Meeting Documents  

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Evaluation of Upper Tropospheric Water Vapor in the NCAR Community Climate Evaluation of Upper Tropospheric Water Vapor in the NCAR Community Climate Model, CCM3, Using Modeled and Observed HIRS Radiances Iacono, M.J., Delamere, J.S., Mlawer, E.J., and Clough, S.A., Atmospheric and Environmental Research, Inc. Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Upper tropospheric water vapor (UTWV) simulated by the National Center for Atmospheric Research Community Climate Model, CCM3, is evaluated by comparing modeled, clear sky, brightness temperatures to those observed from space by the High-resolution Infrared Radiation Sounder (HIRS). The climate model was modified to utilize a highly accurate longwave radiation model, RRTM, and a separate radiance module, both developed for the Atmospheric Radiation Measurement (ARM) Program. The radiance module

165

ARM - Publications: Science Team Meeting Documents  

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ERBE OLR and Cloud Type by Split Window ERBE OLR and Cloud Type by Split Window Inoue, T.(a) and Ackerman, S.A.(b), Meteorological Research Institute (a), University of Wisconsin (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Using collocated ERBE and split window/AVHRR on board NOAA-9, we studied the relationship between cloud type and OLR. NOAA operational OLR estimation is based on flux equivalent temperature defined by the narrow band TBB. We found the relationship between ERBE OLR and brightness temperature (TBB) was different depending on cloud type classified by the split window. The brightness temperature difference between the split window (BTD) is a good indicator of water vapor amount and cloud optical properties. Therefore, we use the TBB and BTD to determine the regression

166

ARM - Publications: Science Team Meeting Documents  

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Implementing Flexible Cloud Vertical Structure in GFDL's AM-2 Large-Scale Implementing Flexible Cloud Vertical Structure in GFDL's AM-2 Large-Scale Model Using Stochastic Clouds Pincus, R.(a), Klein, S.A.(b), and Hemmler, R.(b), NOAA-CIRES Climate DiagnosticsCenter (a), Geophysical Fluid Dynamics Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud vertical structure has a significant impact on radiation and precipitation fluxes, which can then feed back to the general circulation. In large-scale models with partial cloudiness in each grid cell, this structure is usually imposed in the form of "overlap assumptions," which are typically implemented separately in the radiation and precipitation codes. To date, GFDL's global atmospheric model AM-2 has used the random overlap assumption, which is easy to implement but known to be unrealistic

167

ARM - Publications: Science Team Meeting Documents  

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Aerosol-Cloud-Radiation Interaction: A Comparison of GCM Results versus Aerosol-Cloud-Radiation Interaction: A Comparison of GCM Results versus Surface Observations Liepert, B.G., Lamont-Doherty Earth Observatory of Columbia University; Lohmann, U., Dalhousie University, Halifax, Canada Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The change in cloud properties due to increased anthropogenic emissions of aerosols and their precursor gases is referred to as "indirect aerosol effect." Estimates with general circulation models (GCMs) assumed that an increase in aerosol concentration would lead to a cooling effect of about -1Wm2. To evaluate the anthropogenic indirect aerosol effect, we compared two ECHAM GCM experiments with long-term surface observations covering the United States and Germany. The model prognosticates the number of cloud

168

ARM - Publications: Science Team Meeting Documents  

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3D Delta-Diffusion and IR Monte-Carlo Methods for Radiative Transfer 3D Delta-Diffusion and IR Monte-Carlo Methods for Radiative Transfer Applied to Inhomogeneous Cirrus over the ARM-SGP Site Chen, Y.(a), Liou, K.N.(a), Gu, Y.(a), Ou, S.C.(a), and Mace, G.G.(b), University of California, Los Angeles (a), University of Utah (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An efficient method based on a full multigrid approach has been developed to solve the 3D delta-diffusion radiative transfer equation, which utilizes four-term spherical harmonics expansion for the phase function and intensity. This method first solves the inhomogeneous partial differential equation on a number of coarse grids and subsequently performs interpolation to predivided fine grids to speed up the convergence of the solution, particularly useful for cloud radiation parameterization in

169

ARM - Publications: Science Team Meeting Documents  

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Anomalous Radiative Absorption and Unbounded Cascade Models of Cloud Anomalous Radiative Absorption and Unbounded Cascade Models of Cloud Fields Schertzer, D., and Larchevêque, M., Université P.&M. Curie, Paris, France; Lovejoy, S., McGill University; Naud, C., Blackett Laboratory, Imperial College, London Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the most achieving results of Atmospheric Radiation Measurement (ARM) Program could well have been the empirical finding of the anomalous radiative absorption of the atmosphere. We demonstrate that unbounded cascade models of cloud fields, rather than bounded cascade models, could give a theoretical and quantitative understanding of this phenomenon. Indeed, the former models keep contact with the physics and coherence of the turbulent cascades (velocity, temperature and liquid water content) and

170

ARM - Publications: Science Team Meeting Documents  

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Analysis of the Aerosol-Cloud Interactions from Aircraft, Surface Analysis of the Aerosol-Cloud Interactions from Aircraft, Surface Measurements, and Cloud Parcel Model During the March 2000 IOP at the ARM SGP Site Delene, D.J.(a), Dong, X.(a), Chen, Y.(b), Poellot, M.(a), and Penner, J.E.(b), University of North Dakota (a), University of Michigan (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the largest uncertainties in estimating anthropogenic forcing of climate change and in predicting future climates is the relationship between atmospheric aerosols and cloud properties. Aerosols affect cloud optical properties, cloud water content and cloud lifetime. A higher aerosol number concentration generally results in the nucleation of more smaller cloud droplets, which increases cloud albedo and results in a

171

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Terminal Velocities of Droplets and Crystals: Power Laws with Continuous Terminal Velocities of Droplets and Crystals: Power Laws with Continuous Parameters Over the Size Spectrum Khvorostyanov, V.I. and Curry, J.A., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This paper presents a unified treatment of cloud particle fall velocities Vt for both liquid and crystalline cloud particles over the entire size range observed in the atmosphere. The fall velocity representation is formulated in terms of the Best (or Davies) number X and the Reynolds number Re. For the power law representations used in many applications, and with D being the particle diameter (or maximum length), the coefficients aRe, bRe, av, bRe are found as the continuous analytical functions of X or D over the entire hydrometeors size range. Analytical asymptotic solutions

172

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LASE Characterization of Water Vapor, Aerosol, and Cloud Distributions Over LASE Characterization of Water Vapor, Aerosol, and Cloud Distributions Over the ARM Southern Great Plains Central Facility During AFWEX Ismail, S. (a), Ferrare, R.A. (a), Browell, E.V. (a), Kooi, S.A. (b), Brasseur L.H. (b), Clayton, M.B. (b), Brackett, V. (b), Goldsmith, J.E.M. (c), Whiteman, D.N. (d), and Barrick, J. (a), NASA Langley Research Center (a), SAIC Inc., Hampton, Virginia (b), Sandia National Laboratories (c), NASA Goddard Space Flight Center (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Lidar Atmospheric Sensing Experiment (LASE) system was operated during the ARM/FIRE Water Vapor Experiment (AFWEX) to characterize the upper tropospheric water vapor field over the ARM Center Facility (CF) as part of the third Water Vapor Intensive Observation Period (WVIOP3). LASE

173

ARM - Publications: Science Team Meeting Documents  

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Comparison of Boundary Layer Cloud Properties using Surface and GOES Comparison of Boundary Layer Cloud Properties using Surface and GOES Measurements at the ARM SGP Site Dong, X. (a), Minnis, P. (b), Smith, W.L., Jr. (b), and Mace, G.G. (a), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Boundary layer cloud microphysical and radiative properties derived from GOES data during March 2000 cloud IOP at ARM SGP site are compared with simultaneous surface-based observations. The cloud-droplet effective radius, optical depth, and top-of-atmoshpere (TOA) albedo are retrieved from a 2-stream radiative transfer model in conjunction with ground-based measurements of cloud radar, laser ceilometer, microwave and solar radiometers. The satellite results are retrieved from GOES visible and

174

ARM - Publications: Science Team Meeting Documents  

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An Analytic Solution of Two-Stream Stochastic Radiative Transfer in An Analytic Solution of Two-Stream Stochastic Radiative Transfer in Spatially Correlated Media Hu, Y.X.(a) and Davis, A.B.(b), NASA Langley Research Center (a), Los Alamos National Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In situ cloud microphysics measurements show spatial auto-correlations of extinction cross sections over a wide range of scales. At some of those scales, homogeneity and independent-column assumptions fail and a three-dimensional treatment of the radiative transfer is required to capture the effect of the correlations. A simple differential form of transport equation is developed for correlated media in order to account for the first-order impact of the spatial auto-correlations. Two-stream

175

ARM - Publications: Science Team Meeting Documents  

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Optical and Microphysical Characteristics of the Smoke Aerosol in the Optical and Microphysical Characteristics of the Smoke Aerosol in the Moscow Region During the Summer-Autumn of 2002 Gorchakov, G.I.(a), Golitsyn, G.S.(a), Anikin, P.P.(a), Emilenko, A.S.(a), Isakov, A.A. (a), Kopeikin, V.M.(a), Rublev, A.N.(b), Sviridenkov, M.A.(a), and Shukurov, K.A.(a), A.M.Obukhov Institute of Atmospheric Physics, RAS (a), Russian Research Center "Kurchatov Institute" (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Observational results will be presented for the optical and microphysical characteristics of the smoke aerosol produced by wild fires at peatbogs in the Moscow region during the July-September of 2002. Characteristics in the visual range and mass concentration of the submicron aerosol had been

176

ARM - Publications: Science Team Meeting Documents  

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Aerosol Absorption, Optical Depth and Vertical Extent Estimates Using Aerosol Absorption, Optical Depth and Vertical Extent Estimates Using UV/blue Satellite Measurements Cairns, B., and Alexandrov, M.D., Columbia University; Carlson, B.E., and Lacis, A.A., NASA Goddard Institute for Space Studies Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The radiative balance of the atmosphere and the climatological response of the atmospheric circulation to changes in aerosol loading is principally determined by the vertical extent and single-scatter albedo of the aerosols. Although UV radiance measurements made by the Total Ozone Mapping Experiment Spectrometer (TOMS) instrument have been used to detect UV absorbing aerosols and estimate their properties, the unknown verticalextent of the aerosol affects the sensitivity of the radiances to

177

ARM - Publications: Science Team Meeting Documents  

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Inferring Cloud Optical Depth Using Spectrally Varying Surface Albedo: Inferring Cloud Optical Depth Using Spectrally Varying Surface Albedo: Frozen Turbulence vs. Time Evolution Barker, H.W.(a), Pavloski, C.F.(b), Ovtchinnikov, M.(c), Kassianov, E.(c), Clothiaux, E.E.(b), and Marshak, A.(d), Meteorological Service of Canada (a), The Pennsylvania State University (b), Pacific Northwest National Laboratory (c), UMBC/NASA-GSFC (d) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Barker and Marshak (2001) proposed a method for inferring cloud optical depth from measurements of surface spectral radiance and irradiance made close to, but on either side of, wavelength 700 nm (approximately where absorption by chlorophyll ends). Their method has been tested by applying a Monte Carlo photon transport algorithm to cloud fields simulated by

178

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Consistency of ARESE II Cloud Absorption Estimates and Sampling Issues Consistency of ARESE II Cloud Absorption Estimates and Sampling Issues Oreopoulos, L.(a), Marshak, A.(a), and Cahalan, R.F.(b), JCET – University of Maryland Baltimore County (a), NASA-GSFC (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data from three cloudy days (March 3, 21, 29, 2000) of the ARM Enhanced Shortwave Experiment II (ARESE II) were analyzed. Grand averages of broadband absorptance among three sets of instruments were compared. Values of fractional absorptance were ~0.20-0.22 for all three days with the exception of March 3 when two sets of instruments gave values smaller by ~ 0.03-0.04. The robustness of these values was investigated by looking into possible sampling problems mainly with the aid of 500 nm spectral fluxes.

179

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A First Look at the Radiative Impact of Tropical Cirrus Systems Encountered A First Look at the Radiative Impact of Tropical Cirrus Systems Encountered During CRYSTAL-FACE Pilewskie, P. (a), Gore, W. (a), Rabbette, M. (b), Howard, S. (b), and Pommier, J. (b), NASA Ames Research Center (a), Bay Area Environmental Research Institute (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting During the 2002 CRYSTAL-FACE experiment we deployed identical solar spectral and broad-band infrared sensors on the ER-2 and CIRPAS Twin Otter in order to characterize the column radiative energy budget in the tropical atmosphere under varying conditions such as thick anvil cirrus, thin sub-visible cirrus, and cloud free conditions. The data are used to determine cirrus and clear sky heating and cooling rates. The solar spectral reflectance and transmittance data are used to infer cloud

180

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Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Cloud Radiative Forcing of the Arctic Surface: The Influence of Cloud Properties, Surface Albedo, and Solar Zenith Angle Shupe, M.D. and Intrieri, J.M., NOAA - Environmental Technology Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting An annual cycle of cloud and radiation measurements made as part of the Surface Heat Budget of the Arctic program are utilized to determine which properties of Arctic clouds control the surface radiation balance. Surface cloud radiative forcing (CF), defined as the difference between the all-sky net surface radiative flux and the clear sky net surface flux, was calculated from measurements of broadband fluxes and results from a clear sky model. Longwave cloud forcing (CFLW) is shown to be a function of cloud

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

ARM - Publications: Science Team Meeting Documents  

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Inferring Cloud Properties from Narrow-Field-of-View Spectral Radiometers Inferring Cloud Properties from Narrow-Field-of-View Spectral Radiometers Marshak, A.(a), Knyazikhin, Y.(b), Evans, K.(c), and Wiscombe, W.(a), NASA/GSFC (a), Boston University (b), UMBC/JCET (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The most common approach for retrieving cloud optical depth from ground-based observations uses downwelling fluxes measured by pyranometers and Multi-Filter Rotating Shadowband Radiometers (MFRSR). The key element in both retrieval techniques is the one-to-one mapping of the "observed" fluxes into cloud optical depth through plane-parallel radiative transfer. Both methods are expected to work well only for completely overcast clouds giving an effective optical depth for the whole sky. To infer cloud optical

182

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Diurnal Cycle of Convection, Clouds, and Water Vapor in the Tropical Diurnal Cycle of Convection, Clouds, and Water Vapor in the Tropical Upper Troposphere Soden, B.J., NOAA/GFDL Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The presence of large diurnal variations in convection over the tropics is well documented. The amplitude of the diurnal cycle is typically largest over land areas, but important variations are also observed over oceans. Precipitation, for example, generally peaks in the early evening over tropical land regions and in the early morning over oceans. Such land/ ocean phase differences have been the topic of considerable research and debate. Many of the most widely studied diurnal variations, such as precipitation, cloud cover, and outgoing longwave radiation, are directly associated with the atmospheric hydrologic cycle. Given its obvious role in

183

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Impact of Clouds on the Atmospheric Absorption of SW - Comparing Theory and Impact of Clouds on the Atmospheric Absorption of SW - Comparing Theory and Observation at SGP Rose, F.G. (a), Charlock, T.P. (b), and Rutan, D.A. (a), Analytical Services & Materials Inc. (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting This group, and also Li and Trishchenko, have earlier determined the cloud forcing to the atmospheric absorption of SW by combining surface data at SGP with CERES at TOA. Detailed analysis of our results show a systematic trend in the difference of all-sky and clear-sky atmospheric absorption with cosSZA: All-sky absorbs significantly more than clear-sky as cosSZA increases. From radiative transfer theory, all-sky absorption of SW is expected to be greater (less) than clear sky absoption when clouds are low

184

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A Subgrid Representation of Precipitating Marine Boundary Layer Clouds A Subgrid Representation of Precipitating Marine Boundary Layer Clouds Leung, L.R., and Ghan, S.J., Pacific Northwest National Laboratory; Feingold, G., Cooperative Institute for Research in the Atmosphere, Colorado State University Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A subgrid parameterization is being developed to account for subgrid variations of precipitating marine stratocumulus clouds in general circulation models (GCMs). The method assumes an idealized form for the probability density function (pdf) for the cloud variables and predicts/diagnoses the parameters describing the pdfs. A level 2.5 turbulence closure model is used to calculate turbulence fluxes. Cloud-water-related turbulence fluxes are estimated using a partial

185

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Relationships Among Tropical Cloud Characteristics and Components of the Relationships Among Tropical Cloud Characteristics and Components of the Surface Heat Budget Curry, J.A., and Webster, P.J., University of Colorado; Clayson, C.A., Purdue University Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data obtained during the TOGA COARE Intensive Observation Period (IOP) has been used to create a high resolution dataset (50 km, 3 hrs) of cloud characteristics (phase, height, precipitation) and components of the surface energy budget (radiation, sensible and latent heat fluxes). The satellite dataset has been evaluated using in situ observations obtained during TOGA COARE. A cloud classification scheme based upon cloud top height, phase, and precipitation is used as a framework to interpret the effect of the different cloud types on the component surface fluxes and

186

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Direct Aerosol Forcing Calculated at the ARM Southern Great Plains Site Direct Aerosol Forcing Calculated at the ARM Southern Great Plains Site Ackerman, T.P., Flynn, D.M., and Long, C.N., Pacific Northwest National Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The continuous measurements of direct and diffuse solar radiation, water vapor column amount, and aerosol optical depth provided at the ARM SGP site permit us to calculate directly the actual magnitude of the direct aerosol forcing. Our methodology employs the clear sky detection algorithm of Long and Ackerman (2000) to identify cloudless periods. We then fit the downward solar flux at the surface during these periods with an empirical function, which provides us with a continuous mathematical representation of the surface flux under aerosol conditions. The flux under completely clear

187

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Radiation Parameterization for Three-Dimensional Inhomogeneous Cirrus Radiation Parameterization for Three-Dimensional Inhomogeneous Cirrus Clouds: Application to Climate Models Gu, Y. and Liou, K.N., University of California, Los Angeles Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A three-dimensional (3D) radiative transfer model has been developed to simulate the transfer of solar and thermal infrared radiation in inhomogeneous cirrus clouds. The model utilizes a diffusion approximation approach (four-term expansion in the intensity) for application to inhomogeneous media employing Cartesian coordinates. The extinction coefficient, single-scattering albedo, and asymmetry factor are functions of spatial position and wavelength and are parameterized in terms of the ice water content and mean effective ice crystal size. We employ the

188

ARM - Publications: Science Team Meeting Documents  

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Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Initial Cloud Properties Derived from GMS Over the Tropical Western Pacific Doelling, D.R., Ho, S.-P., Smith, W.L., Jr., Analytical Services and Materials, Inc.; Minnis, P., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Satellite data are needed to provide measurements of the earth-atmosphere shortwave (SW) albedo, outgoing longwave radiation (OLR), and cloud and surface radiative properties for the Atmospheric Radiation Measurement (ARM) Program's Tropical Western Pacific (TWP) domain. Geostationary Meteorological Satellite (GMS) data have been archived since November 1996 and provide the basis for monitoring these essential parameters over the ARM TWP. This paper describes the initial efforts and results of developing

189

ARM - Publications: Science Team Meeting Documents  

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Cirrus Cloud Particle Mass and Terminal Velocity Derived from Airborne 2D-C Cirrus Cloud Particle Mass and Terminal Velocity Derived from Airborne 2D-C Probe and Counterflow Virtural Impactor Data for Selected Cases During the Spring 2000 Cloud IOP Benson-Troth, S.(a), Mace, G.G.(a), Twohy, C.(b), and Poellot, M.(c), University of Utah (a), Oregon State University (b), University of North Dakota (c) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting When cirrus cloud particles are sampled by an airborne 2D-C probe, the shadows of the particles on the diode array are preserved. Analysis of the raw 2D-C data provides a size distribution and number concentration of the cloud particles sampled. The airborne counterflow virtural impactor provides the ice water content of the sampled cloud particles. Using the size distribution and the ice water content, we derive the coefficient and

190

ARM - Publications: Science Team Meeting Documents  

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Cirrus Cloud Statistics from a Cloud-Resolving Model Simulation Compared to Cirrus Cloud Statistics from a Cloud-Resolving Model Simulation Compared to Cloud Radar Observations Krueger, S.K. (a), Luo, Y. (a), Mace, G.G. (a), and Xu, K.-M. (b), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Mace, Clothiaux, and Ackerman (2000; MCA) determined the properties of cirrus clouds derived from one year (December 1996 to November 1997) of MMCR data collected at the SGP ARM site in Oklahoma. They also used additional measurements to retrieve the bulk microphysical properties of thin cirrus cloud layers. We sampled CRM results in a way that allows direct comparison to MCA's observations and retrievals of cirrus cloud properties. This allows evaluation, in a statistical sense, of the CRM's

191

ARM - Publications: Science Team Meeting Documents  

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Influence of Age-Dependent Optical and Thermal Snow Properties on the Influence of Age-Dependent Optical and Thermal Snow Properties on the Modeled Surface Temperature and Albedo in the Arctic Curry, J.A., and Schramm, J.L., University of Colorado Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting A new multi-level snow model has been developed to simulate the time-varying snow thermal and optical characteristics in response to precipitation events and snow aging. The model is forced by observations from the Russian ice islands in the Arctic Ocean, and also using some preliminary data from SHEBA. A comparison of the modeled surface temperature and albedo with the commonly used 0-level snow model is made. The new model shows much better agreement with time-series observations of surface temperature and albedo. When the snow model is used over a sea ice

192

ARM - Publications: Science Team Meeting Documents  

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Physical Retrieval of PWV and CLW with MonoRTM Using ARM MWR Data Physical Retrieval of PWV and CLW with MonoRTM Using ARM MWR Data Clough, S.A.(a), Cady-Pereira, K.(a), Boukabara, S.(a), and Liljegren, J.C.(b), Atmospheric and Environmental Research, Inc. (a), Argonne National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The newly developed radiative transfer model, MonoRTM, has been utilized as the forward model in a physical retrieval method to obtain Precipitable Water Vapor (PWV) and Cloud Liquid Water (CLW) using ARM MWR data. The dependence of the forward model on water vapor and oxygen has been carefully analyzed in the context of the ARM dataset covering a three-year period from 1996 to 1998. A detailed error analysis for the forward model brightness temperatures at 23.8 GHz and 31.4 GHz has been has been

193

ARM - Publications: Science Team Meeting Documents  

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Aircraft Measurements of Spectral and Broadband Shortwave Albedo from the Aircraft Measurements of Spectral and Broadband Shortwave Albedo from the NASA Langley OV-10 Smith, W.L., Jr.(a), Charlock, T.P.(a), Roback, V.E.(a), Rutledge, C.K.(b), and Zhang, T.P.(b), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In order to validate and improve surface radiative fluxes derived as part of the Clouds and the Earth's Radiant Energy System (CERES) program, The CERES Fixed-wing Airborne Radiometer (CFAR) was developed to make measurements of upwelling and downwelling shortwave (spectral and broadband) and longwave (broadband) radiative fluxes. The CFAR consists of an OV-10A Bronco twin-turboprop, originally developed for military applications but chosen by NASA for atmospheric radiation measurements

194

ARM - Publications: Science Team Meeting Documents  

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Correction of Sonde Upper Tropospheric Humidity Through Radiance Correction of Sonde Upper Tropospheric Humidity Through Radiance Assimilation Soden, B.J.(a), Turner, D.D.(b), and Lesht, B.M.(c), NOAA/GFDL (a), Pacific Northwest Natinal Laboratory (b), Argonne National Laboratory (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The difficulty of measuring upper tropospheric water vapor from radiosonde instrumentation is widely recognized. Recent results from several ARM IOPs and the AFWEX field campaign have demonstrated a substantial dry bias in sonde measurements. Existing corrections for these measurements can improve the moisture concentrations at lower levels, but offer little improvement in the upper troposphere. Unfortunately, accurate measurements of upper tropospheric water vapor are necessary to constrain the transfer of

195

ARM - Publications: Science Team Meeting Documents  

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Angular Distribution of Intensity in a Flux of Radiation Scattered by a Angular Distribution of Intensity in a Flux of Radiation Scattered by a Cloud Dvoryashin, S.V., Shukurov, K.A., Shukurov, A.K., and Golitsyn, G.S., A.M.Obukhov Institute of Atmospheric Physics, RAS Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting A study of the angular distribution of intensity in a flux of solar radiation scattered by a cloud was carried out in conditions of translucent clouds (the disk of the Sun is visible). Using the digital video camera KODAK DC200, mounted on the sun tracker, the sky images with the angle of view 38 0) have been obtained in cloudy and cloudless conditions. During measurements the disk of the Sun was closed with a blend. Using the specially developed program the photometry of the received images was

196

ARM - Publications: Science Team Meeting Documents  

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Whole-Sky Imager Data Retrieval Whole-Sky Imager Data Retrieval Tooman, T.P., Christensen, G.J., Sandia National Laboratories; Shields, J., and Karr, M., Marine Physical Laboratory, Scripps Institution of Oceanography, University of California San Diego; Moore, S., and Sowle, D., Mission Research Corporation Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Whole-Sky Imager (WSI) is an automated imager used for assessing and documenting cloud fields and cloud field dynamics. Four WSI instruments have been deployed on hard surfaces: one in the Southern Great Plains, two in the Tropical Western Pacific, and one in the North Slope of Alaska. Additionally another instrument has been deployed on an ice breaker in the Polar Ice Cap - Surface Heat Budget of the Arctic (SHEBA). These electronic

197

ARM - Publications: Science Team Meeting Documents  

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On the Detection and Analysis of Multilayered Clouds: Comparison of MODIS On the Detection and Analysis of Multilayered Clouds: Comparison of MODIS Analyses with ARM CART Site Cloud Products Baum, B.A.(a), Nasiri, S.L.(b), and Mace, G.G.(c), NASA Langley Research Center (a), University of Wisconsin-Madison (b), University of Utah (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We will present new ideas regarding the detection and analysis of multilayered clouds in Moderate Resolution Imaging Spectroradiometer (MODIS) imagery. Over the past year, the MODIS cloud property retrieval effort has matured considerably as algorithms have been improved and the instrument performance has been characterized more accurately. Errors caused by noise, striping, and out-of-band response have been reduced. We have developed and tested different approaches for daytime and nighttime

198

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Spatial Hetergeneity in Mid-Summer Fluxes of Carbon, Water and Energy in Spatial Hetergeneity in Mid-Summer Fluxes of Carbon, Water and Energy in Agriculutural Plots Near the SGP Central Facility Fischer, M.L.(a), Billesbach, D.(b), Berry, J.(c), Riley, W.R.(a), and Torn, M.S.(a), Lawrence Berkeley National Laboratory (a), University of Nebraska (b), Carnegie Institution of Washington (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Patterns of land use and management are likely to dominate the spatial heterogeneity in cycles of energy, carbon, and water in ecosystems of the Southern Great Plains (SGP). We report recent progress on measuring and modeling spatial heterogeneity in land surface-atmosphere exchange for different crops in the footprint of a flux system mounted on the ARM SGP Central Facility 60 m tower. The first phase of our the "Portable Flux

199

ARM - Publications: Science Team Meeting Documents  

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Comparisons of a Cloud Resolving Model and ARM Data Comparisons of a Cloud Resolving Model and ARM Data Posselt, D., Mecikalski, J., Tanamachi, R., Feltz, W.F., Turner, D.D., Tobin, D., Knuteson, R.O., and Revercomb, H.E., University of Wisconsin - Madison Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting CIMSS/SSEC at the University of Wisconsin is currently running version 3.5 of the PSU/NCAR MM5 once per day at a resolution of 4 km over the ARM CART site domain. Simulations are performed using a sophisticated cloud-resolving microphysics scheme (Reisner 1998) and a radiative parameterization based on RRTM (Mlawer 1997). With selection of appropriate case studies, comparisons of the model output to ARM data can be used to evaluate the model's ability to reproduce boundary-layer thermal and

200

ARM - Publications: Science Team Meeting Documents  

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A Satellite-Based Assessment of Upper Tropospheric Water Vapor Measurements A Satellite-Based Assessment of Upper Tropospheric Water Vapor Measurements During AFWEX Soden, B.J.(a), Ferrare, R.A.(b), Goldsmith, J.E.M.(c), Smith, W.L.(d), Tobin, D.(e), Turner, D.D.(f), and Whiteman, D.N.(g), NOAA/GFDL (a), NASA/LaRC (b), Sandia National Laboratories (c), NASA/LaRC (d), UW/SSEC (e), Pacific Northwest National Laboratory (f), NASA/GSFC (g) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate measuremetns of upper tropospheric water vapor are critical both for understanding the flow of radiation and formation of clouds, and for the detection and attribution of climate change. In fall of 2000 ARM conducted the ARM-FIRE Water Vapor Experiment (AFWEX) to evaluate the accuracy of upper tropospheric water vapor measurements. The experiment

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201

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A Comparison of Surface Sensible Heat Flux at Atqasuk and Barrow A Comparison of Surface Sensible Heat Flux at Atqasuk and Barrow Shaw, W.J. (a), Doran, J.C. (b), and Hubbe, J.M. (c), Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting As part of the effort to discover the feedbacks between low-level arctic stratus and surface fluxes, we have operated an acoustic anemometer near Barrow, Alaska and a dual wavelength scintillometer near Atqasuk, which is 100 km to the south, in order to measure the surface turbulence heat flux. The systems operated unattended during the spring melt period of 2000, and the data were logged via internet or telephone connections. The acoustic anemometer was mounted on a tower attached to a barge grounded on a low island on the northeast side of Elson Lagoon. The anemometer was 8.5 m

202

ARM - Publications: Science Team Meeting Documents  

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A Satellite Cloud, Radiation and Precipitation Data Set for Cloud Model A Satellite Cloud, Radiation and Precipitation Data Set for Cloud Model Evaluation Xu, K.-M.(a), Wielicki, B.A.(a), Wong, T.(a), and Randall, D.A.(b), NASA Langley Research Center (a), Colorado State University (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting To systematically evaluate cloud models including large-eddy simulation (LES), cloud-resolving models (CRMs), cloud parameterizations in general circulation models (GCMs), one needs a large set of cloud, radiation and precipitation data that are matched with simultaneous atmospheric state data. We have been using a technique to produce such a data set at the NASA Langley Research Center. Specifically, this technique classifies EOS (Earth Observing System) satellite data into distinct cloud systems or "cloud

203

ARM - Publications: Science Team Meeting Documents  

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NCDX: NetCdr Data eXtraction utility for Examination and Visualization of NCDX: NetCdr Data eXtraction utility for Examination and Visualization of Netcdf Data Flynn, C.J. and Ermold, B., Pacific Northwest National Laboratory Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting NCDX is a command-line utility designed for routine examination and extraction of data from netcdf files. Data can be displayed graphically (line-plot, scatter-plot, overlay, color-intensity, etc.) or extracted as ASCII data. In either case, results can be saved to disk or viewed directly on screen. Date and time can be displayed in a large variety of formats including calendar, julian, HHMMSS, fractional day, and others. It can accept multiple netcdf files as input producing merged results. NCDX can be used in either interactive or batch-processing mode making it suitable for

204

ARM - Publications: Science Team Meeting Documents  

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Absolute Radiance Calibration Techniques for the Whole Sky Imager Absolute Radiance Calibration Techniques for the Whole Sky Imager Shields, J.E. (a), Johnson, R.W. (a), Tooman, T.P. (b), Karr, M.E. (a), Burden, A.R. (a), and Baker, J.G. (a), Scripps Institution of Oceanography (a), Sandia National Laboratories (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Day/Night Whole Sky Imager is designed to provide absolute radiance distributions over the full upper hemisphere, as well as providing an assessment of cloud fraction and cloud spatial properties. In order to provide radiance distributions, the instrument must be calibrated using absolute radiometry techniques adapted for use with an imager. These techniques are particularly demanding due to the large dynamic range required to acquire data from full daylight to starlight. For example, a

205

ARM - Publications: Science Team Meeting Documents  

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Activation Control: An Alternate Framework for Explaining Variation of Deep Activation Control: An Alternate Framework for Explaining Variation of Deep Convection Barr-Kumarakulasinghe, S.A., Brookhaven National Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting An alternate conceptual framework with the ability to explain large scale variation in convection, but still have the ability to explain shorter time scale (weekly) variation of convection is presented. In contrast, the current quasi-equilibrium and statistical equilibrium control framework, appears to be only successful in explaining monthly and large scale variations in convection and circulation patterns. Mapes has referred to an alternate concept as activation control, though not actually offering a solution or methodology. This abstract presents an activation control

206

ARM - Publications: Science Team Meeting Documents  

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Evaluation of the Plane-Parallel Model from MISR Measurements Evaluation of the Plane-Parallel Model from MISR Measurements Horvath, A.(a), Davies, R.(b), and Diner, D.J.(b), University of Arizona (a), Jet Propulsion Laboratory (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Due to its simplicity and computational speed, the 1-D plane-parallel model enjoys widespread popularity in the satellite remote sensing of cloud microphysical properties. Just how well this model describes real clouds is a question rather difficult to answer with traditional single-angle observations. With the advent of near-simultaneous multiangle measurements, it is possible to evaluate the validity of the plane-parallel approach. This study used data from the Multiangle Imaging SpectroRadiometer (MISR) on NASA's TERRA (EOS-AM) platform. Only liquid clouds over oceans were

207

ARM - Publications: Science Team Meeting Documents  

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Simulation of the Annual Cycle of Surface Albedo for SHEBA Simulation of the Annual Cycle of Surface Albedo for SHEBA Schramm, J.L., and Curry, J.A., University of Colorado Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A single-column ice thickness distribution model is used to simulate the annual cycle of sea ice, snow and surface radiation characteristics over the Surface Heat Budget of the Arctic Ocean (SHEBA). The model is forced using surface flux data obtained at SHEBA. This poster focuses on the simulated surface albedo and the principal factors that determine it (snow and melt ponds). By comparing the model simulations with SHEBA observations, an assessment of our current parameterizations of snow, melt ponds and surface albedo is given. Some improvements to our model parameterizations have already been made based upon the comparison with

208

ARM - Publications: Science Team Meeting Documents  

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Cloud Fraction Retrieval Utilizing Whole Sky Imagers Cloud Fraction Retrieval Utilizing Whole Sky Imagers Tooman, T.P., Sandia National Laboratories; Moore, S., and Sowle, D., Mission Research Corporation; Shields, J., Marine Physical Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting Long-term statistics on cloud cover and cloud thickness are desirable for understanding how clouds affect climate. We are attempting to use images collected by the Whole Sky Imager (WSI) to extract this information. For nighttime retrieval, we intend to develop algorithms and software to detect star occultations due to clouds. For daytime retrievals, we intend to develop an appoach based on sky radiance variations. We have implemented software to detect star locations, to map image pixel space to celestial

209

ARM - Publications: Science Team Meeting Documents  

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Parameterization of Cloud-Radiation Interactions as Relevant to Climate Parameterization of Cloud-Radiation Interactions as Relevant to Climate Models: A New Dimension Stephens, G.L.(a), Wood, N.B.(a), Barker, H.W.(b), and Gabriel,P.(a), Colorado State University (a), Meteorological Service of Canada (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The parameterization of cloud-radiation interactions involve a number of levels of approximation. The focus of past programs like ICRCCM and I3RC have been directed largely towards assessing methods of solution while other efforts have gone into evaluating the parameterization of cloud optical properties. The parameterization of unresolved cloud variability, however, has received much less attention. A study that attempts to assess a number of the current empirical sub-grid parameterization methods has

210

ARM - Publications: Science Team Meeting Documents  

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Improved Retrieval Of Cloud Liquid Water Path For ARM Microwave Improved Retrieval Of Cloud Liquid Water Path For ARM Microwave Radiometers Liljegren, J.C., Ames Laboratory Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) Program has deployed dual-frequency microwave water radiometers (MWRs) at its Cloud and Radiation Testbed (CART) sites in the U. S. Southern Great Plains (SGP), the Tropical Western Pacific (TWP), and the North Slope of Alaska/Adjacent Arctic Ocean (NSA/AAO). Although the integrated water vapor amount provided by these instruments has enjoyed increasing application, the primary purpose of these instruments has been to provide measurements of the integrated liquid water path in clouds. The liquid water path measurements have been widely used by ARM investigators to test cloud life cycle

211

ARM - Publications: Science Team Meeting Documents  

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Stratus Microphysical Parameters Using Radar and Visible Stratus Microphysical Parameters Using Radar and Visible Optical Depth Austin, R.T. and Stephens, G.L., Colorado State University, Fort Collins Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A new algorithm for the retrieval of stratus cloud microphysical parameters was introduced last year and applied to measurements of maritime stratus clouds off the coast of California. The retrieval has been refined and applied to data from the Southern Great Plains CART site, as well as to the original California marine measurements. The poster will describe these refined results, discuss error analysis of the algorithm, show how the retrieval compares with analogous radar-only retrievals, and discuss other products and benefits of the algorithm's estimation theory formulation

212

ARM - Publications: Science Team Meeting Documents  

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Retrievals of Vertical Profiles of Cloud Ice Mass and Particle Retrievals of Vertical Profiles of Cloud Ice Mass and Particle Characteristic Size from MMCR Data Matrosov, S.Y.(a), Heymsfield, A.J.(b), Shupe, M.D.(c), and Korolev, A.V.(d), CIRES, University of Colorado and NOAA ETL (a), NCAR (b), STC (c), Canadian Atmospheric Service (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting A remote sensing method is proposed for the retrievals of vertical profiles of ice cloud microphysical parameters from ground-based measurements of radar reflectivity and Doppler velocity with a vertically pointed cloud radar. This method relates time-averaged Doppler velocities (which are used as a proxy for the reflectivity weighted particle fall velocities) to particle characteristic sizes such as median or mean. With estimated

213

ARM - Publications: Science Team Meeting Documents  

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Spectral Characterization of the Scattering and Absorption of Solar Spectral Characterization of the Scattering and Absorption of Solar Radiation by Aerosols and Clouds: Results from Several Recent Field Studies Pilewskie, P.(a), Rabbette, M.(b), Bergstrom, R.(b), Pommier, J.(b), and Howard, S.(b), NASA Ames Research Center (a), Bay Area Environmental Research Institute (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Efforts to reduce the uncertainty in climate forcing due to the radiative effects of aerosols and clouds have led to the improvement of radiometric sensors used to measure the spectral distribution of solar radiation in the atmosphere. Because much of our current understanding of the solar radiation budget is derived from broadband (spectrally integrated) observations, newer spectrally resolved observations need to be examined in

214

ARM - Publications: Science Team Meeting Documents  

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Photoacoustic Instrument for Measurement of Aerosol or Gaseous Light Photoacoustic Instrument for Measurement of Aerosol or Gaseous Light Absorption Arnott, W.P., Moosmuller, H., and Rogers, C.F., Desert Research Institute Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting A photoacoustic instrument has been developed and evaluated for measurement of aerosol light absorption. This instrument produces a direct measure of absorption by use of a calibrated microphone and determination of laser power, in contrast to filter methods that require empirical calibration and are subject to strong effects of aerosol extinction. The instrument was evaluated during the winter of 1996-97 in Brighton, Colorado, during the North Front Range Air Quality Study (NFRAQS). Results of the instrument intercomparison with other methods during NFRAQS will be given along with

215

ARM - Publications: Science Team Meeting Documents  

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The Clear-Sky Diffuse 'Problem' at SGP: RSS Data & Analysis The Clear-Sky Diffuse 'Problem' at SGP: RSS Data & Analysis Harrison, L., Kiedron, P., and Min, Q., State University of new York, Albany Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting We analyze the spectral RSS data from the fall of 1999, when there were an unusual series of clear-sky cloud-free days at SGP. The RSS makes measurements of the spectral diffuse/direct ratio which are independent of calibration. We also extract typical optical depth analyis data from Langley regressions, and we retrieve column NO2 from correlation spectroscopy. We show that column NO2 is often well above clean-climatological background at SGP, and that this interacts with simple forms of aerosol-optical depth retrievals (which do not account for this)

216

ARM - Publications: Science Team Meeting Documents  

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Parameterizing the Radiative Properties of Midlatitude Clouds Parameterizing the Radiative Properties of Midlatitude Clouds Sassen, K. (a), Comstock, J.M. (b), and Wang, Z. (a), University of Utah (a), Pacific Northwest National Laboratory (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A major goal of the ARM program is to obtain the requisite information needed to improve the treatment of the radiative effects of clouds in large-scale models that ultimately must be relied on to predict the impact of human-induced activities on global climate change. The clouds of the middle and upper troposphere are especially difficult to treat because of their variable optical properties, which range from optically thin in the visible, and graybody emitters in the infrared, to dense blackbody emitters. Approaches to obtain this information involve the development of

217

ARM - Publications: Science Team Meeting Documents  

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A New Approach for Obtaining Advection Profiles: Application to the SHEBA A New Approach for Obtaining Advection Profiles: Application to the SHEBA Column Morrison, H.(a) and Pinto, J.O.(b), University of Colorado (a), NCAR/University of Colorado (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Time-averaged vertically-integrated 3-D advections are inferred from heat and moisture budgets obtained from observations at SHEBA for April, May, June and July. Advection was a source of heat and moisture in the column budgets during the time period, balanced mostly by precipitation and radiative cooling. These inferred advections are used to evaluate and correct the 3D temperature and water vapor advection profiles obtained from operational forecasts of the ECMWF model. Advections from the ECMWF model are generally too warm and moist, particularly in July. These biases lead

218

ARM - Publications: Science Team Meeting Documents  

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The Use of the ARM WSI to Estimate the Atmospheric Optical Depth at Night The Use of the ARM WSI to Estimate the Atmospheric Optical Depth at Night Musat, I.C. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The shortwave extinction by atmospheric constituents can be studied during the night, with the light of stars as a radiation source, using the ARM Whole Sky Imager (WSI). The digital images obtained with the WSI are processed to infer the star radiance at the TOA and the broadband atmospheric extinction coefficient. Subsequently, the broadband extinction is calculated from an atmosphere model, and the goodness of fit of the model with observations is assessed taking into account the known profiles of temperature, pressure, columnar mixing ratios of the gases, diverse

219

ARM - Publications: Science Team Meeting Documents  

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Evaluating Stochastic Radiative Transfer Evaluating Stochastic Radiative Transfer Lane, D.E. (a), Somerville, R.C.J. (b), and Iacobellis, S.F. (b), CIRES, University of Colorado, Boulder (a), Scripps Institution of Oceanography, University of California, San Diego (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Stochastic modeling is a promising technique for representing shortwave radiative transfer through scattered, low-level clouds. A distinct advantage of this approach is that a stochastic model can accurately calculate the radiative heating rates through a broken cloud layer without requiring an exact description of the cloud geometry. In this paper a single-column model is employed to quantify the influence of the stochastic approach on model thermodynamics for times when broken cloud fields were

220

ARM - Publications: Science Team Meeting Documents  

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Comparison of Aerosol Properties Within and Above the Atmospheric Boundary Comparison of Aerosol Properties Within and Above the Atmospheric Boundary Layer at the ARM SGP Site Delle Monache, L.(a), Perry, K.D.(a), and Cederwall, R.T.(b), San Jose State University (a), Lawrence Livermore National Laboratory (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The objective of this work is to determine under what conditions, if any, measurements of aerosol properties made at the surface at the ARM SGP Central Facility are representative of aerosol properties within the column of air above the surface. This is important in assessing the value of data collected at the ARM Aerosol Observation System (AOS) for developing and diagnosing cloud and radiation parameterizations involving aerosol properties within and above the atmospheric boundary layer (ABL). The study

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

ARM - Publications: Science Team Meeting Documents  

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An Assessment of Upper Tropospheric Humidity Measurements at the ARM An Assessment of Upper Tropospheric Humidity Measurements at the ARM SGP/CART Site Soden, B.J. (a), Turner, D.D. (b), and Goldsmith, J.E.M. (c), NOAA/GFDL (a), Pacific Northwest National Laboratory (b), Sandia National Laboratories (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Upper tropospheric water vapor plays a key role in regulating the flow of radiation through clear skies and the formation and dissipation of clouds. Unfortunately, due to the difficulty of accurately measuring this quantity, it remains a key uncertainty in GCM predictions of climate change. Much of the uncertainty surrounding upper tropospheric water vapor reflects an incomplete understanding of the processes which regulate its distribution and variations. This, in turn, reflects the lack of suitable observations

222

ARM - Publications: Science Team Meeting Documents  

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Sub-Grid-Scale Isentropic Transports on McRAS Evaluations Sub-Grid-Scale Isentropic Transports on McRAS Evaluations Using ARM-CART SCM Datasets Sud, Y.C., Walker, G.K., and Tao, W.-K., Climate and Radiation Branch, Laboratory for Atmospheres, NASA/Goddard Space Flight Center Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Influence of Sub-grid-Scale Isentropic Transports on McRAS: Evaluation using ARM-CART SCM Datasets. Y. C. Sud, G. K. Walker and W.-K. Tao In GCM-physics evaluations with the currently available ARM-CART SCM datasets, McRAS produced very similar character of near surface errors of simulated temperature and humidity containing typically warm and moist biases near the surface and cold and dry biases aloft. We argued it must have a common cause presumably rooted in the model physics. Lack of vertical adjustment

223

ARM - Publications: Science Team Meeting Documents  

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Estimation of Temperature Effect of Fires Near Moscow in Summer-Fall 2002 Estimation of Temperature Effect of Fires Near Moscow in Summer-Fall 2002 Mokhov, I.I. and Gorchakova, I.A., Obukhov Institute of Atmosphere Physics RAS, Russia Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Local effect of cooling ΔT due to peatbog and forest fires near Moscow in summer-fall 2002 is estimated. These estimates are based on coordinated measurements at the Zvenigorod Scientific Station (55°42'N, 36°46'E) of our Institute. Continuous measurements of radiation balance components at the surface together with meteorological and aerological observations and determination of the aerosol optical depth τ were used to calculate the aerosol radiative forcing (ARF) at the surface ARF(0), at the top of the atmosphere ARF(∞), and for the whole atmosphere ARF (∞)- ARF(0).

224

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From Crops to Boundary Layer and Back Down Again: the ARM Carbon Project in From Crops to Boundary Layer and Back Down Again: the ARM Carbon Project in the Southern Great Plains Torn, M.S.(a), Berry, J.(b), Riley, W.J.(a), Fischer, M.L.(a), Billesbach, B.(c), Helliker, B.(b), and Giles, L.(b), Lawrence Berkeley National Laboratory (a), Carnegie Institution of Washington (b), University of Nebraska (c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting One of the challenges in carbon cycle research is the vast range of scale that must be traversed by measurements and models. Our understanding of carbon cycle processes is being built from studies of enzymes, organisms and plot-scale studies of ecosystems, while our ultimate objective is to understand the mass and isotope balance of earth’s atmosphere. Spanning

225

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The Surface Shortwave Radiation Budget in the ECMWF Forecast System The Surface Shortwave Radiation Budget in the ECMWF Forecast System Morcrette, J.-J., European Centre for Medium-Range Weather Forecasts, United Kingdom Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The surface shortwave radiation (SSR) produced by the ECMWF forecast system since 1989 is studied with reference to the various versions of the shortwave radiation scheme. For the latest 6-spectral interval version, model SSR is compared with surface radiation measurements for recent periods, available as part of the Baseline Surface Radiation Network (BSRN), Surface Radiation Network (SURFRAD), and Atmospheric Radiation Measurement (ARM) programs. Comparisons on one-hour basis are emphasized to allow discrepancies to be more easily linked to differences between model

226

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Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Winter Surface Radiative Energy Exchange at NSA: Cloudy vs. Clear Sky Stramler, K.(a), Del Genio, A.D.(b), and Rossow, W.(b), Columbia University (a), NASA/GISS (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM measurements at Point Barrow, Alaska show that atmospheric emission drives the winter variability of the surface radiative energy exchange, as the incursion of air masses of differing properties alternately warm and cool the snow surface and the snow-ground interface. The magnitude of the surface radiative energy exchange, however, appears to be in part dictated by the more slowly varying sub-surface temperatures. This is most evident when observing the inter-annual variability of clear-sky surface net longwave radiation at NSA; winter cloudy-sky surface net longwave radiation

227

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Comparison of Stratus Cloud Optical Depths Retrieved from Surface and GOES Comparison of Stratus Cloud Optical Depths Retrieved from Surface and GOES Measurements over the SGP ARM Central Facility Dong, X., and Smith, W.L. Jr., Analytical Services and Materials, Inc.; Minnis, P., NASA Langley Research Center Eighth Atmospheric Radiation Measurement (ARM) Science Team Meeting For reliable application of satellite datasets in cloud process and single column models, it is important to have a reasonable estimate of the errors in the observed cloud properties. When properly used, ground-based instruments can provide a cloud truth dataset for estimating errors in the satellite products. Data taken during the spring 1994 ARM Intensive Observation Period (IOP), ARM Enhanced Shortwave Experiment (ARESE), and SUbsonic Aircraft Contrail and Cloud Effects Special Study (SUCCESS) are

228

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Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Numerical Tests of the Cloud-Surface Interaction Based Broken-Cloud Field Optical Depth Retrieval: Sensitivity to Surface Albedo, Droplet Phase Function, Aerosol, and Instrument Noise Beaulne, A.(a), Barker, H.W.(b), Blanchet, J.P.(a), Pavloski, C.F.(c), Clothiaux, E.E.(c), and Marshak, A.(d), Universite du Quebec a Montreal (a), Environment Canada (b), The Pennsylvania State University (c), NASA-GSFC (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The algorithm proposed by Barker and Marshak for inferring optical depth of broken clouds using surface radiometric data has been subject to several sensitivity tests. These include the impacts of uncertainties in specification of effective local surface albedo, droplet phase function,

229

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Comparison of Spectral and Broadband Measurements of Surface Flux with Comparison of Spectral and Broadband Measurements of Surface Flux with Model Calculations on Clear Days at the ARM SGP Site Arking, A. (a), Liu, F. (a), Harrison, L. C. (b), Pilewskie, P. (c), and Chou, M.-D. (d), Johns Hopkins University (a), State University of New York, Albany (b), NASA Ames Research Center (c), NASA Goddard Space Flight Center (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Observations of spectral and broadband solar irradiance at the ARM/SGP site have been compared with line-by-line model calculations. The spectral measurements were made with the SUNY Albany Rotating Shadowband Spectroradiometer (RSS) and the NASA Ames Solar Spectral Flux Radiometer (SSFR). The broadband measurements were made with the Baseline Solar

230

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Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Water Content at the North Slope of Alaska and the Adjacent Arctic Ocean Takara, E.E. and Ellingson, R.G., University of Maryland Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting It is well known that complete radiative transfer calculations for broken cloud fields are extremely complex and time consuming. Furthermore, the solution for a particular broken cloud field is not particularly useful for evaluating cloud effects. For that reason, is common to parameterize the cloud effects by using an effective cloud fraction. In general circulation models, it is common to use theabsolute cloud amount as the effective cloud fractions. This can be an effective for cloud fields where the cloud

231

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Evidence for Aerosol Effects on AERI Clear-Sky Radiance at the SGP Evidence for Aerosol Effects on AERI Clear-Sky Radiance at the SGP Ma, Y., and Ellingson, R.G., University of Maryland Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Emitted Radiance Interferometer (AERI) Line-by-Line Radiative Transfer Model (LBLRTM) Quality Measurement Experiment (QME) 10-micron window residuals have been examined relative to the Multifilter Rotating Shadowband Radiometer (MFRSR) 0.87-micron optical depth for clear-sky periods during 1997-98. The analysis shows an increasing aerosol influence on the downwelling radiance with aerosol optical depth for columnar water totals below about 3 cm. Above 3 cm, the residuals become negatively correlated with both aerosol optical depth and precipitable water. This change in the characteristics suggests that the current LBLRTM

232

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A New Water Vapor Continuum Model: MT_CKD_1.0 A New Water Vapor Continuum Model: MT_CKD_1.0 Mlawer, E.J.(a), Clough, S.A.(a), and Tobin, D.C.(b), Atmospheric and Environmental Research, Inc. (a) University of Wisconsin - Madison (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting For the first time since its inception, a new formulation for the CKD approach to the water vapor continuum has been generated. This new version is designated MT_CKD_1.0. The original CKD formulation, derived in 1980 based upon laboratory measurements due to Burch and collaborators, applied an empirically derived multiplicative factor (different for the self and foreign continua) to the line wing of the impact line shape. This resulted in a line shape that was super-Lorentzian in the near and intermediate line

233

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Preliminary Analysis of Horizontal Inhomogeneity for ARESE II Clouds Preliminary Analysis of Horizontal Inhomogeneity for ARESE II Clouds Marshak, A. (a), Wiscombe, W.J. (b), Davis, A.B. (c), and Pilewskie, P. (d), UMBC/JCET (a), NASA/GSFC (b), LANL (c), NASA/Ames (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM Enhanced Shortwave Experiment (ARESE) II was conducted at the SGP site from February 21 through April 15, 2000. The identical set of radiometers simultaneously measured the broadband and narrowband fluxes, as well as spectral fluxes and radiances from the aircraft flying above clouds and on the ground. To escape sampling problems with only one aircraft flying a daisy pattern over the central facility, the whole experiment was focused on optically thick stratocumulus clouds. However, even heavy stratus clouds

234

ARM - Publications: Science Team Meeting Documents  

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Retrieval of Mean Cosine of Aerosol Phase Function from Extinction and Sky Retrieval of Mean Cosine of Aerosol Phase Function from Extinction and Sky Brightness Measurements Zhuravleva, T.B.(a), Sviridenkov, M.A.(b), and Anikin, P.P.(b), Institute of Atmospheric Optics SB RAS, Tomsk, Russia (a), A.M. Obukhov Institute of Atmospheric Physics RAS, Moscow, Russia (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Asymmetry of the aerosol phase function together with optical thickness drive the magnitude of the aerosol radiative forcing. Two approaches are usually used to obtain the mean cosine of the phase function retrieval of the single scattering phase function from sky brightness measurements or calculations for the given aerosol size distribution and refractive index. We studied the possibility to determine the mean cosine directly from

235

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Development and Comparison of Ground- and Satellite-based Retrievals of Development and Comparison of Ground- and Satellite-based Retrievals of Cirrus Cloud Physical Properties d'Entremont, R.P.(a) and Mitchell, D.L.(b), Atmospheric and Environmental Research, Inc. (a), Desert Research Institute (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting This project is designed to (1) develop new ground- and space-based retrieval methods for cirrus cloud ice water path (IWP), effective size (Deff), and visible extinction optical thickness (OT) using thermal infrared wavelength bands from 3.7 to 13 um, and (2) to compare these retrievals with others obtained by ARM investigators during various ARM IOPs. During year 1 of this project research focused primarily on the enhancing of satellite- and ground-based thermal infrared retrievals of

236

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Evaluation of Day-Night Continuity in Retrievals of Cloud Properties from Evaluation of Day-Night Continuity in Retrievals of Cloud Properties from GOES Heck, P.W.(a), Minnis, P.(b), Khaiyer, M.M.(a), Smith, Jr., W.L.(b), Young, D.F.(b), and Nguyen, L.(b), Analytical Services & Materials, Inc. (a), NASA Langley Research Center (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Currently, multi-spectral algorithms are being used to retrieve microphysical and radiative cloud p roperties from Geostationary Operational Environmental Satellite (GOES) imagery in a near-real time over a domain that includes the ARM Southern Great Plains (SGP) site. The Visible-Infrared-Solar i nfrared-Split window Technique (VISST) and Solar infrared- Infrared-Split window Technique (SIST) a re applied to half-hourly GOES data. The VISST is utilized during daylight hours while

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GPS Measured Water Vapor Variability at the ARM SGP CF GPS Measured Water Vapor Variability at the ARM SGP CF Braun, J. (a), Rocken, C. (a), and Schmid, B. (b), UCAR (a), BAER (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Ground based Global Positioning System (GPS) stations can measure precipitable water vapor (PWV) and slant water vapor (SWV). SWV is the integrated amount of water vapor along the slant path from the GPS transmitter to the station. The ARM program has sponsored the University Corporation for Atmospheric Research (UCAR) to install and operate a network of single frequency GPS receivers at the Southern Great Plains (SGP) Central Facility (CF). Fourteen stations were installed in 1999, and an additional nine stations in 2000. The entire network covers approximately 40 square kilometers roughly centered around the SGP CF. This

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A Continuous Baseline Microphysical Retrieval (MICROBASE): Status of SGP A Continuous Baseline Microphysical Retrieval (MICROBASE): Status of SGP Version 1.2 and Prototype TWP Version Miller, M.A.(a), Johnson, K.L.(a), Jensen, M.P.(b), Mace, G.G.(c), Dong, X.(d), and Vogelmann, A.M.(a), Brookhaven National Laboratory (a), Columbia University (b), University of Utah (c), University of North Dakota (d) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The interaction of clouds with incoming and outgoing radiation streams produces discontinuous regions of heating and cooling within the atmospheric column. These regions can influence the atmospheric circulations at multiple scales, as well as modify the existing cloud structures. The Broadband Heating Rate Project (BBHRP) within ARM has the goal of producing instantaneous snapshots of the heating and cooling rate

239

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An Overview of Water Vapor IOP (WVIOP) 2000 and ARM/FIRE Water Vapor An Overview of Water Vapor IOP (WVIOP) 2000 and ARM/FIRE Water Vapor EXperiment (AFWEX) Tobin, D., Revercomb, H., and Turner, D.D., University of Wisconsin-Madison Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting WVIOP 2000 and AFWEX, two field experiments with focus on the accuracy of ARM water vapor measurements, have recently been conducted. WVIOP 2000, the third in a series of WVIOPs which have studied the accuracy of lower tropospheric water vapor measurements, ran from 18 September to 8 October 2000 and consisted of ground based operations primarily out of the SGP central facility. AFWEX was an interagency experiment with the primary goal of assessing the accuracy of upper level (~8-12 km) water vapor measurements. It was conducted from 27 November to 15 December 2000 and

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Applications of the Aerosonde at NSA Applications of the Aerosonde at NSA Curry, J.A. and Holland, G.J., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first ARM Aerosonde flights at Barrow in April 1999 were not successful owing to the aircraft's inability to fly under severe icing conditions. However, we were sufficiently encouraged by these initial flights to pursue further developments to make feasible Aerosonde flights in the Arctic. NSF has funded a major project to establish a long-term Aerosonde facility based in Barrow. Extensive research is underway on the topic of icing mitigation. A limited but successful mission was undertaken in Barrow during August 2000. In the coming year, flights are planned for April, August 2001. We hope to be able to fly the originally proposed

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NREL Pyrheliometer Comparisons - 2002 NREL Pyrheliometer Comparisons - 2002 Reda, I. and Stoffel, T.L., National Renewable Energy Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting All broadband shortwave radiometers used by the ARM Program are calibrated with absolute cavity radiometers traceable to the World Radiometric Reference (WRR). The WRR was developed and is maintained by the World Radiation Center under the auspices of the World Meteorological Organization. Each fall, the National Renewable Energy Laboratory (NREL) hosts annual comparisons of absolute cavity radiometers at the Solar Radiation Research Laboratory in Golden, Colorado. Since 1995, NREL has maintained the Transfer Standard Group (TSG) consisting of five radiometers belonging to NREL and the ARM Program. Our poster summarizes the results of

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CAGEX Version 3: Tightening Shortwave Fluxes and Measurements of Surface CAGEX Version 3: Tightening Shortwave Fluxes and Measurements of Surface Spectral Characteristics Alberta, T.L., Analytical Services and Materials, Inc.; Charlock, T.P., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Version 3 of the CAGEX (Clouds and Earth's Radiant Energy System [CERES]/Atmospheric Radiation Measurement [ARM]/Global Energy and Water Experiment [GEWEX]) is introduced. As with Version 2 (10/95) and Version 1 (4/94), Version 3 provides input data sufficient for broadband radiative transfer calculations; fluxes computed with those inputs and the Fu-Liou code as modified by Hu, Rose and Kratz; and measurements for validation and diagnostics. Along with the usual ARM data sets (Solar and Infrared

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Using ARM GOES-8 Cloud and TOA Flux Properties to Estimate Surface Using ARM GOES-8 Cloud and TOA Flux Properties to Estimate Surface Radiation Budget Parameters Stackhouse, P.W., Jr. (a), Gupta, S.K. (b), Cox, S.J. (b), Minnis, P. (a), Smith, W.L., Jr. (b), and Khaiyer, M.M. (b), NASA Langley Research Center (a) Analytical Services and Materials, Inc. (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The Global Energy and Water Cycle Experiment (GEWEX) Surface Radiation Budget Project (SRB) uses top-of-atmosphere (TOA) radiance measurements and cloud property retrievals to estimate surface fluxes on a global basis. Normally, GEWEX SRB algorithms rely on TOA radiances and cloud information derived from International Satellite Cloud Climatology Project (ISCCP) data. Here, we show first results of using SW and LW algorithms featured in

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ARM Radiosonde Humidity Measurements and Proposed Corrections ARM Radiosonde Humidity Measurements and Proposed Corrections Based On AWEX Radiosonde Intercomparisons Miloshevich, L.M.(a), Lesht, B.M.(b), and Voemel, H.(c), National Center for Atmospheric Research (a), Argonne National Laboratory (b), NOAA/CMDL (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM radiosonde relative humidity (RH) measurements are widely used in numerical modeling, remote sensor validation, and radiative transfer calculations, yet their accuracy as a function of temperature and RH has not been adequately quantified. During the AIRS Water vapor EXperiment (AWEX) at the SGP site in November 2003, 34 launches of multiple radiosondes on the same balloon were conducted, including 12 soundings from the University of Colorado's Cryogenic Frostpoint Hygrometer (CFH). The

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A Comparison of High Spectral Resolution Infrared Cloud Boundary Algorithms A Comparison of High Spectral Resolution Infrared Cloud Boundary Algorithms using S-HIS and AERI Measurements Holz, R.E.(a), Antonelli, P.(a), Ackerman, S.(a), McGill, M.J.(a), Nagel, F.(a), Feltz, W.F.(a), and Turner, D.D.(b), Univeristy of Wisconsin, Madison (a), Pacific Northwest National Laboratory (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cloud top pressure is an important parameter in determining the radiative impact of clouds on climate. In addition, atmospheric temperature and moister retrievals of cloudy scenes using high spectral resolution data require the cloud altitude be known. The S-HIS is scheduled to fly on the Proteus during the upcoming M-PACE experiment. In addition to the SHIS a lidar system and an imager will accompany the SHIS during MPACE. This paper

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Radiosonde Intercomparison During the Fall 2000 Water Vapor IOP Radiosonde Intercomparison During the Fall 2000 Water Vapor IOP Lesht, B.M. (a) and Richardson, S.J. (b), Argonne National Laboratory (a), University of Oklahoma (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting We conducted 160 dual-radiosonde soundings during the fall 2000 Water Vapor Intensive Operations Period (WVIOP). The soundings were done every three hours at the SGP/CART site central facility from 1430 on 18 September 2000 through 1130 on 8 October 2000. The dual soundings included Vaisala RH-80H radiosondes from four different calibration lots as well as Vaisala RS-90 radiosondes. The radisondes were distributed during the experiment so as to conduct pairwise comparisons between RS-80s, RS-90s and RS-80s/RS-90s. Prior to the WVIOP we tested the calibration of these types of radiosondes

247

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Irradiance Using Remotely Sensed Cloud Properties From Irradiance Using Remotely Sensed Cloud Properties From ARM's SGP Site Barker, H.W., Atmospheric Environment Service of Canada; Li, Z., Canada Centre for Remote Sensing; Clothiaux, E.E., and Ackerman, T.P., The Pennsylvania State University; Kato, S., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Time series of profiles of cloud water content and droplet effective radii have been inferred from data obtained by a 35-GHz radar and a Microwave Radiometer (MWR) at the Atmospheric Radiation Measurement (ARM) Program's Southern Great Plains (SGP) site. These profiles initialize a Monte Carlo algorithm that predicts time series of broadband surface solar irradiance, which in turn are compared with coeval measurements. Special attention is

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ARM - Publications: Science Team Meeting Documents  

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Evaluating the NCEP Global Forecast Model Clouds Evaluating the NCEP Global Forecast Model Clouds Lazarus, S.M. (a), Krueger, S.K. (a), Jenkins, M.A. (a), and Pan, H.-L. (b), University of Utah (a), National Centers for Environmental Prediction (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting As part of a collaborative effort with the National Center for Environmental Prediction (NCEP), the University of Utah is now archiving (daily) column data from the NCEP Medium Range Forecast (MRF) model. Data are collected for 8 sites, 4 of which directly coincide with ARM facilities at Manus, Nauru, Barrow, and the Southern Great Plains (SGP) Central Facility (CF). The bevy of observational data at these locations offers a unique opportunity to evaluate model performance. Because cloud feedback

249

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Sizes, Fractional Coverage, and Radar Doppler Moments Profiles of Sizes, Fractional Coverage, and Radar Doppler Moments Profiles of Fair-Weather Cumulus Clouds at the TWP ARM Site Kollias, P., Albrecht B.A., and Dow B.J., University of Miami Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Fair-weather cumuli are fundamental in regulating the vertical structure of water vapor and entropy in the lowest 2 km of the Earth's atmosphere over vast areas of the oceans. Using data from the mm-wavelength cloud radar, the micro-pulse lidar and ceilometer at the Nauru (TWP-ARM) site, a statistical description of the field of fair weather cumulus is inferred. Frequency diagrams of cloud thickness, fractional coverage, updraft-downdraft magnitudes and cloud reflectivity are calculated. The relationship of the statistical behavior of the cumulus field to the

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Cloud Base Height Cloud Base Height Kassianov, E., Long, C., and Christy, J., Pacific Northwest National Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting We have suggested a method for estimating Cloud Base Height (CBH) by using paired ground-based Total Sky Imagers (TSI) hemispherical observations (Kassianov and Long, 2003). Our results of the model-output inverse problem showed that, for broken clouds (single layer), moderately accurate CBH retrieval is possible. Both a TSI and a Hemispherical Sky Imager (HSI) were run simultaneously during the ARM Cloudiness Intercomparison IOP (Oklahoma, 2003). We use the data from these two instruments to evaluate the suggested method. We perform the CBH retrieval for a few fields of broken clouds (occurring at different altitudes) by using the suggested method. Then we

251

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Application of a Non-local Turbulence Closure Scheme to a Single Column Application of a Non-local Turbulence Closure Scheme to a Single Column Model Ghan, S.J. (a) and Moeng, C.-H. (b), Pacific Northwest National Laboratory (a), National Center for Atmospheric Research (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A non-local countergradient transport term is added to a turbulence kinetic energy scheme embedded in a single column model (SCM). The countergradient term is expressed in terms of a planetary boundary layer (PBL) velocity scale, the vertical profile of diffusivity, the depth of the PBL, and the fluxes of heat and moisture at the surface and at the top of the PBL. The fluxes at the top of the PBL are expressed in terms of the cloud top radiative cooling rate, the jump in liquid potential temperature and total

252

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Properties Over the North Slope of Alaska: A Comparison of Properties Over the North Slope of Alaska: A Comparison of Ground-Based and Space-Based Retrievals Storvold, R.(a), Marty, C.(a), Xiong, X.(b), Stamnes, K.H.(c), and Zak, B.D.(d), University of Alaska Fairbanks (a), QSS group Inc. (b), Stevens Institute of Technology (c), Sandia National Laboratories (d) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In the Arctic there is a large seasonal variability in cloud cover, cloud base height, and cloud liquid water content. Cloud properties above the ARM/NSA CART site in Barrow are retrieved using a suite of different instruments and retrieval techniques. Daily and monthly averages of the cloud properties are derived for a full annual cycle using data from LIDAR, Whole Sky Imager, Cloud Radar, Micro Wave Radiometer, and Broadband

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Atmospheric Longwave Irradiance Uncertainty Atmospheric Longwave Irradiance Uncertainty Philipona, R. (a), Dutton, E.G. (b), Wood, N. (b), Anderson, G. (b), Stoffel, T. (c), Reda, I. (c), Michalsky, J.J. (d), Wendling, P. (e), Stiffter, A. (e), Clough, S.A. (f), Mlawer, E.J. (f), Revercomb, H. (g), and Shippert, T. (h), World Radiation Center, Davos, Switzerland (a), NOAA, Climate Monitoring and Diagnosic Laboratory (b), National Renewable Energy Laboratory (c), State University of New York at Albany (d), DLR, Oberfaffenhofen, Germany (e), Atmospheric and Environmental Research Inc. (f), University of Wisconsin-Madison (g), Pacific Northwest National Laboratory (h) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The first International Pyrgeometer and Absolute Sky-scanning Radiometer

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Impact of an Improved Longwave Radiation Model, RRTM, on the Energy Budget Impact of an Improved Longwave Radiation Model, RRTM, on the Energy Budget and Thermodynamic Properties of the NCAR Climate Model, CCM3 Iacono, M.J., Mlawer, E.J., and Clough, S.A., Atmospheric and Environmental Research, Inc. Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting The effect of introducing a new longwave radiation parameterization, Rapid Radiative Transfer Model (RRTM), on the energy budget and thermodynamic properties of Version 3 of the National Center for Atmospheric Research (NCAR) Community Climate Model (CCM3) will be presented. RRTM is a rapid and accurate k-distribution radiative transfer model that has been developed for the Atmospheric Radiation Measurement (ARM) Program. Among the important features of the RRTM are its connection to radiation

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ARM - Publications: Science Team Meeting Documents  

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A High Spectral Resolution Lidar for the Arctic - A Progress Report A High Spectral Resolution Lidar for the Arctic - A Progress Report Eloranta, E.W., Razenkov, I., Kuehn, R., Holz, R., Hedrick, J., and Garcia, J., University of Wisconsin-Madison Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The University of Wisconsin is constructing a High Spectral Resolution Lidar for deployment in the Arctic. It is designed to operate as an internet appliance and require minimal attention from an onsite attendent. It will provide continuous well calibrated profiles of optical depth, cloud phase and backscatter cross sections. Deployment at the Point Barrow ARM facility is proposed. This poster will describe progess to date. Initial testing has demonstrated that the shared transmitter/reciever telescope design functions properly. While this approach eliminates alignment

256

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Detection of Thin Cirrus Using MODIS 1.38 Micron Reflection Detection of Thin Cirrus Using MODIS 1.38 Micron Reflection Roskovensky, J.K. and Liou, K.N., University of California, Los Angeles Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The 1.38 µm channel on board MODIS may have significant advantage in detecting thin cirrus over existing methods due to its high sensitivity to upper tropospheric clouds and a nearly negligible sensitivity to low level reflectance. To investigate this potential, three different cloud schemes are employed. One based on the MODIS Cloud Mask Product (MOD35) which utilizes both visible and 1.38 µm reflectance thresholds. The second is a modified version of the cloud phase detection scheme presented in the paper by Ou et al (1996) that incorporates a series of visible, near and far

257

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Characterizing Diurnal CO2 Cycles in the Continental Boundary Layer Using Characterizing Diurnal CO2 Cycles in the Continental Boundary Layer Using Precise Concentration Measurements and a Simple Numerical Model Torn, M.S.(a), Riley, W.(a), Rischer, M.L.(a), Biraud, S.(a), and Berry, J.(b), Lawrence Berkeley National Laboratory (a), Carnegie Institution of Washington (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In continental regions, atmospheric CO2 profiles are strongly influenced by atmospheric dynamics as well as ecosystem and anthropogenic fluxes. Relating site level measurements or atmospheric profiles to regional CO2 budgets may require methods to represent or evaluate these influences. At the Southern Great Plains ARM-CART, we are measuring precise CO2 concentrations continuously at 2-60 m and weekly at 300 and 3300 m agl. CO2

258

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Seasonal Variability in Cloud Cover, Cloud Base Height, and Cloud Liquid Water Content at the North Slope of Alaska and the Adjacent Arctic Ocean Storvold, R. (a), Stamnes, K. (b), Marty, C. (a), and Zak, B.D. (c), University of Alaska Fairbanks (a), Stevens Institute of Technology (b), Sandia National Laboratories (c) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting There is great seasonal variability in cloud cover, cloud base height, and cloud liquid water in the Arctic. This seasonal variability in cloud properties has been quantified based on a full year of data from the Atmospheric Radiation Measurement Program Sites in Barrow and Atqasuk during 1999-2000. We compare these results with similar results obtained in the Arctic Ocean during the one-year SHEBA experiment. We also compare the

259

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tropical Cloud Radiative Forcing and the Large-Scale Atmospheric Energy Tropical Cloud Radiative Forcing and the Large-Scale Atmospheric Energy Transport Tian, B. (a) and Ramanathan, V. (b), Scripps Institution of Oceanography, UCSD Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Moist static energy is exported within the atmosphere column, from equatorial latitudes to the subtropics by the Hadley circulation and from the western Pacific warm pool to the eastern Pacific cold tongue by the Walker circulation. It is the net energy fluxes into the atmosphere, i.e., the radiative and the turbulent latent and sensible heat fluxes from surface and the radiative flux at the top of the atmosphere, that maintain this energy transport and balance the resulting divergence of energy. We demonstrate here that the dominant term that provides the balance is the

260

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Comparison of Cloud-Radiative Properties from Regional Very-High-Resolution Comparison of Cloud-Radiative Properties from Regional Very-High-Resolution Modeling and Satellite Retrievals Wang, D.-H. (a,b) and Minnis, P.(b), Hampton University (a), NASA Langley Research Center (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Data from a regional very-high-resolution modeling/assimilation and the GOES satellite-derived cloud-radiative properties including cloud fraction, temperature, height, thickness, phase, optical depth, effective particle size and ice or liquid water path; and TOA fluxes and albedos, are used in this study. The preliminary results of the intercomparison show that the cloud fields from model and satellite-derived compare well. The frequencies are computed for the individual cloud system. Comparisons of frequency

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Differences in Cloud Characteristics at Barrow and Atqasuk at the NSA/AAO Differences in Cloud Characteristics at Barrow and Atqasuk at the NSA/AAO CART Doran, J.C., Barnard, J.C., Zhong, S., and Jakob, C., Pacific Northwest National Laboratory Pacific Northwest National Laboratory, European Centre for Medium-Range Weather Forecasting Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Data obtained from multifilter rotating shadowband radiometers (MFRSRs) and microwave radiometers (MWRs) have been used to examine the differences in the cloud characteristics at Barrow and Atqasuk during the period June-September of 1999. Because the size of a grid cell in a GCM may be on the order of 100 km or more, it is important to determine to what extent meteorological and radiometric observations made at Barrow or Atqasuk

262

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Shortwave and Longwave Flux and Cooling Rate Profiles for the ARM Central Shortwave and Longwave Flux and Cooling Rate Profiles for the ARM Central Facility Clough, S.A. (a), Delamere, J.S. (a), Mlawer, E.J. (a), Cederwall, R.T. (b), Revercomb, H. (c), Tobin, D. (c), Turner, D.D. (c), Knuteson, R.O. (c), Michalsky, J.J. (d), Kiedron, P.W. (d), Ellingson, R.G. (e), Krueger, S.K. (f), Mace, G.G. (f), Shippert, T. (g), and Zhang, M.H.(h), Atmospheric and Environmental Research, Inc. (a), Lawrence Livermore National Laboratory (b), University of Wisconsin-Madison (c), State University of New York, Albany (d), University of Maryland (e), University of Utah (f), Pacific Northwest National Laboratory (g), State University of New York, Stony Brook (h) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate representations of the cooling rate profile, the surface flux and

263

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

an Improved Convective Triggering Mechanism in the NCAR CAM2 an Improved Convective Triggering Mechanism in the NCAR CAM2 under the CCPP-ARM Parameterization Testbed (CAPT) Framework Xie, S.C.(a), Cederwall, R.T.(a), Potter, G.L.(a), Boyle, J.S.(a), Yio, J.J.(a), Zhang, M.H.(b), and Lin, W.Y.(b), Lawrence Livermore National Laboratory (a), State University of New York at Stony Brook (b) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting In this study, we implement an improved convective triggering mechanism, which was developed by Xie and Zhang [2000] based on the ARM observations and Single-Column Model (SCM) tests, in the NCAR Community Atmosphere Model (CAM2) in order to reduce the problem that the model produces excessive warm season daytime precipitation over land. This problem is closely

264

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Particle Size Distributions Estimated During the 2001 Multi-Frequency Radar Particle Size Distributions Estimated During the 2001 Multi-Frequency Radar IOP Williams, C.R.(a) and Sekelsky, S.M.(b), University of Colorado at Boulder (a), University of Massachusetts at Amherst (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The 2001 Multi-Frequency Radar Intensive Operational Period (IOP) was designed to collect a long dataset of W-band (95 GHz), Ka-band (35 GHz), and S-band (2.8 GHz) vertical profiling observations to investigate insect scattering and precipitating particle scattering above the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) site. The 95 and 2.8 GHz vertically pointing radars were placed next to the permanently installed 35 GHz Millimeter Wave Cloud Radar (MMCR) at the SGP Central Facility from

265

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Validation of TERRA MODIS Cloud Properties Using Ground-Based Measurements Validation of TERRA MODIS Cloud Properties Using Ground-Based Measurements at the DOE ARM SGP Site Dong, X.(a), Xi, B.(a), Minnis, P.(b), Wielicki, B.(b), Sun-Mack, S.(c), Chen,Y.(c), and Mace, G.G.(d), University of North Dakota (a), NASA/Langley Research Center (b), SAIC, Inc. (c), University of Utah (d) Cloud macrophysical and microphysical/optical properties derived from the Moderate Resolution Imaging Spectroradiometer (MODIS) on Terra as part of the Clouds and the Earth's Radiant Energy System (CERES) project during February 2000-December 2001 are compared to simultaneous ground-based observations. The ground-based data taken over the Atmospheric Radiation Measurement (ARM) Program Southern Great Plains (SGP) site are used as cloud truth data set in the validation of the CERES Science Team derived

266

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Parameterization of Hygroscopic Aerosols in a Climate GCM Parameterization of Hygroscopic Aerosols in a Climate GCM Lacis, A.A., Mishchenko, M.I., and Carlson, B.E., Goddard Institute for Space Studies Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Real and imaginary refractive indices are needed over the full range of solar and thermal wavelengths in order to compute the radiative forcing due to atmospheric aerosols. Laboratory measurements are available for dry ammonium sulfate [Toon and Pollack, 1976] over the spectral range 0.3 – 40 ?m, and for dry sea salt [Shettle and Fenn, 1979; Nilsson, 1979; both based on Volz, 1972 measurements] over 0.2 – 40 ?m. Partial spectrum measurements from 0.7 to 2.6 ?m of the imaginary refractive index of ammonium sulfate and ammonium nitrate are also available [Gosse et al.,

267

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radiative Forcing of Arctic Boundary Layers During SHEBA Radiative Forcing of Arctic Boundary Layers During SHEBA Pinto, J.O., Mirocha, J., Reeder, R.A., and Curry, J.A., University of Colorado Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Field measurements obtained during the Surface Heat Budget of the Arctic (SHEBA) experiment are used to ascertain the importance of radiation in the evolution of the Arctic boundary layer. Radiation effects the boundary layer structure through the vertical flux divergence of longwave and shortwave fluxes as well as through radiative heating/cooling of the surface which determines the sensible heat flux. The mean and turbulence structure of the both clear and cloud boundary layers in winter, spring and summer are determined from aircraft data, radiosonde soundings, the ASFG

268

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LASE Characterization of Water Vapor Over the ARM SGP During AFWEX LASE Characterization of Water Vapor Over the ARM SGP During AFWEX Ismail, S.(a), Ferrare, R.A.(a), Browell, E.V.(a), Kooi, S.A.(b), Brasseur, L.H.(b), Clayton, M.B.(b), Brackett, V.(b), Turner, D.D. (c), Goldsmith, J.E.M.(d), Whiteman, D.N.(e), Barrick, J.(a), Sachse, G.(a), Diskin, G.(a), Podolske, J.(f), Schmidlin, F.J.(g), and Bosenberg, J.(h), NASA Langley (a), SAIC (b), Pacific Northwest National Laboratory (c), Sandia National Laboratories (d), NASA Goddard (e), NASA Ames (f), NASA Wallops (g), Max Planck Institute (h) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting NASA's Lidar Atmospheric Sensing Experiment (LASE) system was operated during the ARM/FIRE Water Vapor Experiment (AFWEX) to characterize the upper tropospheric (UT) water vapor field over the ARM Center Facility (CF)

269

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aerosol Direct Forcing at TOA and Surface for Clear and Cloudy Conditions Aerosol Direct Forcing at TOA and Surface for Clear and Cloudy Conditions Charlock, T.P.(a), Rose, F.G.(b), Rutan, D.A.(b), Fillmore, D.(c), and Collins, W.(c), NASA Langley Research Center (a), Analytical Services and Materials, Inc. (b), National Center for Atmospheric Research (c) Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Direct aerosol forcing can be affected dramatically by cloudiness. For example, with a continental AOT of 0.25 and soot AOT of 0.05 at scale height 2km over the tropical ocean with cosSZA of 0.33, the computed forcing to SW reflection at TOA is 15 Wm-2. If we include a boundary layer cloud with a top at 1km and an optical depth 20, the same TOA forcing then reverses sign and becomes -22 Wm-2. A new CERES Terra Surface and

270

ARM - Key Science Questions  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

govScienceKey Science Questions govScienceKey Science Questions Science Research Themes Research Highlights Journal Articles Collaborations Atmospheric System Research (ASR) ARM Science Team Meetings User Meetings Annual Meetings of the Atmospheric System Research (ASR) Science Team and Fall Working Groups Accomplishments Read about the 20 years of accomplishments (PDF, 696KB) from the ARM Program and user facility. Performance Metrics ASR Metrics 2009 2008 2007 2006 Key Science Questions The role of clouds and water vapor in climate change is not well understood; yet water vapor is the largest greenhouse gas and directly affects cloud cover and the propagation of radiant energy. In fact, there may be positive feedback between water vapor and other greenhouse gases. Carbon dioxide and other gases from human activities slightly warm the

271

MR Instrument Team - ORNL Neutron Sciences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

MR-Instrument Team MR-Instrument Team MR instrument team MR Team (left to right): Valeria Lauter, Lead Instrument Scientist, Primary Contact Artur Glavic, Instrument Scientist Hailemariam Ambaye, Scientific Associate Rick Goyette, Scientific Associate Lead Instrument Scientist: Dr. Valeria Lauter Valeria Lauter Beam line 4A's lead instrument scientist is Valeria Lauter. Valeria received her PhD in Experimental and Theoretical Solid State Physics from the Joint Institute for Nuclear Research in Dubna, Russia. Her previous work has been as a Research Scientist at the Technical University of Munich, Germany; Research Scientist at the University of Konstanz, Germany; Visiting Scientist at the Institute Laue-Langevin in Grenoble, France; Research Scientist at the Laboratoire de Magnetisme CNRS in Grenoble,

272

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Team Meeting Counting from when MMCR's were first intalled at the 4 ARM sites, the ARM dataset consists of nearly 10 years of total data collected. This volume of data presents...

273

A quantitative perspective on ethics in large team science  

E-Print Network [OSTI]

The gradual crowding out of singleton and small team science by large team endeavors is challenging key features of research culture. It is therefore important for the future of scientific practice to reflect upon the scientists' ethical responsibilities within teams. To facilitate this reflection we show labor force trends in the US revealing a skewed growth in academic ranks and increased levels of competition for promotion within the system; we analyze teaming trends across disciplines and national borders demonstrating why it is becoming difficult to distribute credit and to avoid conflicts of interest; and we use more than a century of Nobel prize data to show how science is outgrowing its old institutions of singleton awards. Of particular concern within the large team environment is the weakening of the mentor-mentee relation, which undermines the cultivation of virtue ethics across scientific generations. These trends and emerging organizational complexities call for a universal set of behavioral norm...

Petersen, Alexander M; Semendeferi, Ioanna

2014-01-01T23:59:59.000Z

274

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Institute for Research in Environmental Sciences; Blanchet, J.-P., University of Quebec at Montreal; Curry, J.A., University of Colorado Ninth Atmospheric Radiation...

275

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

(a), Cohn, S.A. (a), and Yoneyama, K. (b), National Center for Atmospheric Research (a), Japan Marine Science and Technology Center (b) Eleventh Atmospheric Radiation Measurement...

276

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Event During the International H2O Project (IHOP 2002) Tanamachi, R.L., University of Oklahoma, School of Meteorology Fourteenth Atmospheric Radiation Measurement (ARM) Science...

277

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and Cess, R.D.(d), Institute of Atmospheric Physics, Chinese Academy of Sciences (a), Hadley Centre for Climate Prediction and Research (b), Lawrence Livermore National Laboratory...

278

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for an Evolving Tropical Cloud System Barker, H.W., Atmospheric Environment Service of Canada; Fu, Q., Dalhousie University Ninth Atmospheric Radiation Measurement (ARM) Science...

279

NETL: Science Bowl Information - West Virginia - Teams and Coaches  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Teams and Coaches Teams and Coaches Facebook Visit us on Facebook CLICK ON IMAGE TO SEE LARGER VIEW SuGO Bot competition. SuGO Bot competition. We're excited you're here to participate in the National Science Bowl® competition. Below are some links to help you prepare your team to compete. Good luck! We hope to see you at the regional competition. General Information Some information about this year's regional competition can be found in a letter which was sent out to schools in the region. Click here to read it. Local competition schedule by RESA and contact information About the Competition A complete set of rules for the 2014 Competition 2014 Rules Sample Questions - Use these sets of sample questions from The National Science Bowl website to test and practice your science knowledge.

280

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Simplifying Access to the North Slope of Alaska Data Streams Simplifying Access to the North Slope of Alaska Data Streams Bahrmann, C.P.(a), Richardson, S.R.(a), Clothiaux, E.E.(a), Verlinde, J.(a), McCord, R.A.(b), and Horwedel, B.(b), Department of Meteorology, The Pennsylvania State University (a), Oak Ridge National Laboratory (b) In August 2003, the NSA Site Scientist Team initiated a meta-data investigation on all NSA data streams. This investigation started by examining data streams for measurement name discrepancies. For example, the nsaskyrad60sC1.a1 data stream contains the measurement from a Shaded PSP. From 1998-02-14 through 2001-03-31 the measurement was called psps_mean (PSP shaded mean). On 2003-04-01 the measurement was renamed to down_short_diffuse_hemisp (Downwelling Shortwave Diffuse Hemispheric

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


281

ARM - Publications: Science Team Meeting Documents: Abstracts sorted by  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting Meeting 2005 Proceedings Proceedings Sorted by Title Proceedings Sorted by Author Science Team Meeting Proceedings Cover image Proceedings of the Fifteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting ARM-CONF-2005, March 2005 Daytona Beach, Florida For proper viewing, extended abstracts should be viewed with Adobe Acrobat Reader. Download the latest version from the Adobe Reader website. * Poster abstract only; an extended abstract was not provided by the author(s). View session papers by Author or Title. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A Abdou, W. Determination of Aerosol and Surface Reflectance Characteristics at the ARM CART Site Using MISR Observations* Ackerman, A. Factors Controlling the Properties of Multi-Phase Arctic

282

2010 DOE National Science Bowl® Photos - 2010 Middle School Teams | U.S.  

Office of Science (SC) Website

2010 Middle School Teams 2010 Middle School Teams National Science Bowl® (NSB) NSB Home About National Science Bowl Contacts Regional Science Bowl Coordinators National Science Bowl FAQ's Alumni Past National Science Bowl Winners Past National Science Bowl Photos National Science Bowl Logos High School Middle School Attending National Event Volunteers 2013 Competition Results News Media WDTS Home Contact Information National Science Bowl® U.S. Department of Energy SC-27/ Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: 202-586-6702 E: National.Science.Bowl@science.doe.gov 2010 National Science Bowl Photos 2010 DOE National Science Bowl® Photos - 2010 Middle School Teams Print Text Size: A A A RSS Feeds FeedbackShare Page The 37 middle school teams at the 2010 National Science Bowl.

283

103 Teams to Head to DOE's National Science Bowl in Washington, D.C. |  

Broader source: Energy.gov (indexed) [DOE]

3 Teams to Head to DOE's National Science Bowl in Washington, 3 Teams to Head to DOE's National Science Bowl in Washington, D.C. 103 Teams to Head to DOE's National Science Bowl in Washington, D.C. April 23, 2009 - 12:00am Addthis WASHINGTON, DC- Students from 67 high school teams and 36 middle school teams from across the nation will compete next weekend for championship titles in the U.S. Department of Energy's (DOE) National Science Bowl in Washington D.C. The National Science Bowl is the nation's largest academic competition of its kind and the only one sponsored by a federal agency. The National Finals will be held from May 2 through May 4. Each of the participating teams emerged from a regional competition to earn an all-expense-paid trip to the event. The participating teams represent 42 states, the District of Columbia, the U.S. Virgin Islands and Puerto

284

Registration Now Open for 2013 Science Bowl Teams | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Registration Now Open for 2013 Science Bowl Teams Registration Now Open for 2013 Science Bowl Teams Registration Now Open for 2013 Science Bowl Teams October 2, 2012 - 10:00am Addthis NEWS MEDIA CONTACT (202) 586-4940 Washington - Today, U.S. Energy Secretary Steven Chu announced that registration is now open for the 2013 National Science Bowl (NSB). This marks the beginning of the 23rd year of the nation's largest science competition, which is sponsored by the Department of Energy's (DOE's) Office of Science. Local middle school and high school students form teams that compete in regional competitions. The winning teams from the regional competitions then advance to the National Science Bowl competition in Washington, DC next spring. "Many of America's future leaders in science and technology are likely

285

Abstract ED05-02: The Clinical and Translational Science Award Program: Transdisciplinary teams in cancer prevention research  

Science Journals Connector (OSTI)

...that has been termed team science. At UCLA, our Clinical and Translational Science Institute (CTSI) is the...establish transdisciplinary team science as our operating principle...collaboration with the UC Office of the President have identified...

Steven M. Dubinett

2012-11-01T23:59:59.000Z

286

Proceedings of the Sixteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting  

SciTech Connect (OSTI)

The ARM Program holds an annual science team meeting each spring. ARM Science Team members, members of the infrastructure, and selected individuals outside the ARM Program are invited to attend the meeting and present posters and formal presentations to share research results. These results are published electronically in the meeting proceedings.

JW Voyles

2006-09-30T23:59:59.000Z

287

National Science Bowl Update: Teams from North Carolina and California to  

Broader source: Energy.gov (indexed) [DOE]

Teams from North Carolina and Teams from North Carolina and California to Compete for High School Championship National Science Bowl Update: Teams from North Carolina and California to Compete for High School Championship April 28, 2013 - 10:41pm Addthis NEWS MEDIA CONTACT 858-859-1672 Editor's Note: HD-quality b-roll from the competition is being posted online at https://vimeo.com/doescience/videos. WASHINGTON - The field of high school finalists in the Department of Energy (DOE) National Science Bowl has narrowed once more, and now only two high school teams remain in the competition. The teams remaining are: California Mira Loma High School, Sacramento North Carolina North Carolina School of Science and Mathematics (HS), Durham The first-place high school team in the academic competition will win a

288

AmeriFlux Measurement Network: Science Team Research  

SciTech Connect (OSTI)

Research involves analysis and field direction of AmeriFlux operations, and the PI provides scientific leadership of the AmeriFlux network. Activities include the coordination and quality assurance of measurements across AmeriFlux network sites, synthesis of results across the network, organizing and supporting the annual Science Team Meeting, and communicating AmeriFlux results to the scientific community and other users. Objectives of measurement research include (i) coordination of flux and biometric measurement protocols (ii) timely data delivery to the Carbon Dioxide Information and Analysis Center (CDIAC); and (iii) assurance of data quality of flux and ecosystem measurements contributed by AmeriFlux sites. Objectives of integration and synthesis activities include (i) integration of site data into network-wide synthesis products; and (ii) participation in the analysis, modeling and interpretation of network data products. Communications objectives include (i) organizing an annual meeting of AmeriFlux investigators for reporting annual flux measurements and exchanging scientific information on ecosystem carbon budgets; (ii) developing focused topics for analysis and publication; and (iii) developing data reporting protocols in support of AmeriFlux network goals.

Law, B E

2012-12-12T23:59:59.000Z

289

National Science Bowl Update: Middle School Teams from Maryland and Indiana  

Broader source: Energy.gov (indexed) [DOE]

Middle School Teams from Maryland and Middle School Teams from Maryland and Indiana to Compete for National Championship on Monday National Science Bowl Update: Middle School Teams from Maryland and Indiana to Compete for National Championship on Monday April 28, 2013 - 9:40pm Addthis NEWS MEDIA CONTACT (202) 586-4940 Editor's Note: HD-quality b-roll from the competition is being posted online at https://vimeo.com/doescience/videos and HD Skype interviews with your local students at the competition can be scheduled by calling the National Science Bowl Press Room. WASHINGTON - The field of middle school finalists in the Department of Energy (DOE) National Science Bowl has narrowed once more, and now only two middle school teams remain in the competition. The teams remaining are: Indiana Creekside Middle School, Carmel

290

Kansas City Regional sends two teams to National Science Bowl | National  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Regional sends two teams to National Science Bowl | National Regional sends two teams to National Science Bowl | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Kansas City Regional sends two teams to ... Kansas City Regional sends two teams to National Science Bowl Posted By Office of Public Affairs Blue Valley West team After a full day of intense competition, Blue Valley West and Fort Zumwalt

291

Kansas City Regional sends two teams to National Science Bowl | National  

National Nuclear Security Administration (NNSA)

Regional sends two teams to National Science Bowl | National Regional sends two teams to National Science Bowl | National Nuclear Security Administration Our Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Continuing Management Reform Countering Nuclear Terrorism About Us Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Media Room Congressional Testimony Fact Sheets Newsletters Press Releases Speeches Events Social Media Video Gallery Photo Gallery NNSA Archive Federal Employment Apply for Our Jobs Our Jobs Working at NNSA Blog Home > NNSA Blog > Kansas City Regional sends two teams to ... Kansas City Regional sends two teams to National Science Bowl Posted By Office of Public Affairs Blue Valley West team After a full day of intense competition, Blue Valley West and Fort Zumwalt

292

AC 2010-1659: IMPLEMENTING PEER LED TEAM LEARNING IN GATEWAY SCIENCE AND MATHEMATICS COURSES FOR ENGINEERING MAJORS  

E-Print Network [OSTI]

AC 2010-1659: IMPLEMENTING PEER LED TEAM LEARNING IN GATEWAY SCIENCE AND MATHEMATICS COURSES Led Team Learning in Gateway Science and Mathematics Courses for Engineering Majors Abstract The large chemistry course, we have implemented workshops based on the Peer Led Team Learning (PLTL) model

Knaust, Helmut

293

Exploring the Frontiers of Burning Science Dale Meade and the FIRE Team  

E-Print Network [OSTI]

Exploring the Frontiers of Burning Science Dale Meade and the FIRE Team ITC-12 / APFA '01 Meeting, and it produces negligible nuclear waste or pollutants." What should we do to be ready? By end of January conduct the base fusion sciences program 2. Directs DOE to submit a plan for construction of a U.S. Burning Plasma

294

from Savannah River Nuclear Solutions, LLC NEWS Area High School Teams Compete during DOE's National Science  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

High School Teams Compete during DOE's National Science High School Teams Compete during DOE's National Science Bowl® Regional Championship: Lakeside and Evans High School Finish Second and Third - Dorman Wins AIKEN, S.C. - Feb. 25, 2013 - Using a format similar to the television show "Jeopardy," America's next generation of scientists and engineers put their knowledge to the test at the University of South Carolina Aiken during the DOE National Science Bowl regional compe- tition this past weekend. High School teams from across South Carolina and the greater Augusta, Ga. area relied on their collective knowledge as they participated in one of the coun- try's largest science tournaments. This regional competition, managed by Savannah River Nuclear Solutions, LLC (SRNS), hosted 120 high school students from 12 high schools. It is the only educational event

295

ESS280A_2012_011113.xlsx.1/11/13 2012 Sustainability Science Team  

E-Print Network [OSTI]

ESS280A_2012_011113.xlsx.1/11/13 2012 Sustainability Science Team Topics in Sustainability Science, ESS 280A Time Topic Faculty 10/1/12 Monday 11:00-12:30 Water Resources J. Famiglietti, ESS/CEE 10:00-12:30 Climate Change Science (Overview) M. Prather, ESS, EI 10/11/12 Thursday 12:30-2:00 Environmental Biology

Rose, Michael R.

296

Research needs to address ASR challenges  

E-Print Network [OSTI]

tx H2O | pg. 8 For all its benefits, aquifer storage and recovery (ASR) does have some potential challenges that warrant further research and planning, according to scientists and others involved in ASR. In 2005, the National Research... Council (NRC) convened a Committee on Sustainable Underground Storage of Recoverable Water to evaluate past experiences with ASR, or what the committee called managed underground storage (MUS) of recoverable water. Another committee goal...

Wythe, Kathy

2008-01-01T23:59:59.000Z

297

Geek-Up[4.8.2011]: Batteries (With & Without) and Tools for Team Science |  

Broader source: Energy.gov (indexed) [DOE]

4.8.2011]: Batteries (With & Without) and Tools for Team 4.8.2011]: Batteries (With & Without) and Tools for Team Science Geek-Up[4.8.2011]: Batteries (With & Without) and Tools for Team Science April 8, 2011 - 5:20pm Addthis The sensor part of the device is about 2 millimeters in size | Courtesy of LLNL The sensor part of the device is about 2 millimeters in size | Courtesy of LLNL Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs Researchers from Lawrence Livermore National Laboratory and the University of Shanghai for Science and Technology have collaborated to develop first-generation battery-less chemical detectors. Traditionally, these detectors rely on an external power source. Through this alternative, the detector utilizes a nanosensor that relies on semiconductor nanowires.

298

ARM - Publications: Science Team Meeting Documents: Update on the ARM  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Update on the ARM SCM/CRM multi-year continuous forcing datasets at SGP Update on the ARM SCM/CRM multi-year continuous forcing datasets at SGP Xie, Shaocheng Lawrence Livermore National Laboratory Yio, John DOE/Lawrence Livermore National Laboratory Klein, Stephen Lawrence Livermore National Laboratory Cederwall, Richard Lawrence Livermore National Laboratory Statistical study of SCM/CRM simulations requires a long-term (preferably, multiyear) large-scale forcing data. The current approach to develop such multiyear datasets at SGP is to use the NOAA mesoscale model RUC (Rapid Update Cycle) analyses constrained with the ARM surface and TOA measurements by using a variational analysis approach. Using this method, the LLNL ARM data infrastructure team developed a 2-year continuous forcing dataset for 1999-2000 two years ago. Since then, several ARM surface and

299

Registration Now Open for 2013 Science Bowl Teams | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

36am 36am Addthis The National Science Bowl finals take place each year in the National Building Museum. The top regional teams come to Washington, D.C., in the spring as they as they advance to National Finals. Registration is now open at the NSB website. | Photo by Dennis Brack, Energy Department Office of Science The National Science Bowl finals take place each year in the National Building Museum. The top regional teams come to Washington, D.C., in the spring as they as they advance to National Finals. Registration is now open at the NSB website. | Photo by Dennis Brack, Energy Department Office of Science Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

300

AIRS Science Team Meeting March 17 -19, 2014  

E-Print Network [OSTI]

: What can AIRS Observations Tell Us? 2:00 PM Sun Wong NASA JPL Extreme Weather Events Observed Layer Energy and Moisture Budgets of the Stratocumulus-to-Cumulus Transition 11:00 AM Brian Kahn NASA background CO 9:00 AM Ed Olsen NASA JPL AIRS CO2 Science Highlights and Project Status 9:30 AM BREAK 10:00 AM

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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301

Proceedings of the third Atmospheric Radiation Measurement (ARM) science team meeting  

SciTech Connect (OSTI)

This document contains the summaries of papers presented at the 1993 Atmospheric Radiation Measurement (ARM) Science Team meeting held in Morman, Oklahoma. To put these papers in context, it is useful to consider the history and status of the ARM Program at the time of the meeting. Individual papers have been cataloged separately.

Not Available

1994-03-01T23:59:59.000Z

302

ARM - Publications: Science Team Meeting Documents: Using ARM data to  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Using ARM data to evaluate the dependence of surface downward longwave Using ARM data to evaluate the dependence of surface downward longwave radiation on near-surface temperature and water vapour path, in both ARM observations and the Met Office NWP model. Henderson, Peter Environmental Systems Science Centre Slingo, Anthony Environmental Systems Science Centre In this work, we continue our comparisons between ARM data and simulations from the UK Met Office Numerical Weather Prediction (NWP) model. The present analysis focuses on the variables that control the downwelling longwave radiation at the surface, in particular the column water vapour and near-surface temperature. Water vapour is both a source and a sink of latent heat, is an active modulator of atmospheric radiative transfer and therefore influences both the general circulation and the global energy

303

The Coastal Ocean Applications and Science Team (COAST): Science Support for a Geostationary Ocean Color Imager for Coastal Waters  

E-Print Network [OSTI]

intensity, events, e.g. the impacts of an increase in the yearly number of hurricanes, to more slowing of the coastal ocean. Project Description: The Coastal Ocean Applications and Science Team (COAST) was formed productivity and chlorophyll fluorescence, data management Peter Strutton, coastal carbon cycle, Harmful Algal

Kurapov, Alexander

304

ARM - Publications: Science Team Meeting Documents: External Data Stream  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

External Data Stream Review External Data Stream Review Wagener, Richard Brookhaven National Laboratory Ma, Lynn DOE/Brookhaven National Laboratory Gregory, Laurie Brookhaven National Laboratory Tichler, Joyce DOE/Brookhaven National Laboratory Horwedel, Betsy Oak Ridge National Laboratory Cialella, Alice Brookhaven National Laboratory In terms of data volume, about half the data in the ACRF archive were generated outside of the ARM program and collected by the eXternal Data Center (XDC) from external sources, processed to standard formats, documented, and forwarded to the archive. This constitutes a unique resource drawing many users to the archive, however it involves a significant effort and we must assure that the effort is spent where it provides the most benefit to the ACRF science mission. Here, we present a

305

ARM - Publications: Science Team Meeting Documents: Observations of Natural  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Observations of Natural Variability in Marine Stratocumulus Clouds Observations of Natural Variability in Marine Stratocumulus Clouds Albrecht, Bruce University of Miami Kollias, Pavlos RSMAS/University of Miami Jo, Ieng Rosentiel School of Marine & Atmospheric Science Ghate, Virendra RSMAS/Univ. Miami Serpetzoglou, Efthymious Minnis, Patrick NASA Langley Research Center Sun-Mack, Szedung SAIC Large to mesoscale features affecting the albedo of marine stratocumulus clouds are observed frequently and can have a substantial impact on the overall albedo of the subtropical cloud decks. One such naturally occurring feature-defined as a cloud rift-is characterized as a large-scale, persistent area of broken, low reflectivity stratocumulus clouds usually surrounded by a solid deck of stratocumulus. We review results from a

306

Convergence of Advances in Genomics, Team Science, and Repositories as Drivers of Progress in Psychiatric Genomics  

Science Journals Connector (OSTI)

Abstract After many years of unfilled promise, psychiatric genetics has seen an unprecedented number of successes in recent years. We hypothesize that the field has reached an inflection point through a confluence of four key developments: advances in genomics; the orientation of the scientific community around large collaborative team science projects; the development of sample and data repositories; and a policy framework for sharing and accessing these resources. We discuss these domains and their effect on scientific progress and provide a perspective on why we think this is only the beginning of a new era in scientific discovery.

Thomas Lehner; Geetha Senthil; Anjen M. Addington

2015-01-01T23:59:59.000Z

307

Climate-Science Computational Development Team: The Climate End Station II  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Model Model Model: Community Atmosphere Model (CAM5) with spectral element (SE) dynamics at 1/8th degree resolution. Physics options include full prognostic aerosols. Fixed annual cycle sea surface temperatures and sea ice extent, interactive land surface (CLM). Run within CESM1.0 coupled system. INCITE PI: Warren Washington, National Center for Atmospheric Research Setup and Integration: Mark Taylor, Sandia National Laboratory Visualization: Joseph A. Insley, Argonne National Laboratory Andy Bauer, Kitware CESM port to Intrepid (Blue Gene/P) Sheri Mickelson, Argonne National Laboratory Robert Jacob, Argonne National Laboratory Climate-Science Computational Development Team: The Climate End Station II PI Name: Warren Washington PI Email: wmw@ucar.edu Institution:

308

Research on ASR in China and its energy recycling with pyrolysis method  

Science Journals Connector (OSTI)

Automobile shredder residue (ASR) is the waste generated ... vehicles. With the recent development of the automotive industry, proper ASR management is gaining significant...

Feijian Ni; Ming Chen

2014-01-01T23:59:59.000Z

309

Twenty-three Teams to Compete in Virginia High School Science...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

http:science.energy.govwdtsnsb Science Bowl rules, the locations of regional high school competitions and sample questions are posted at: http:science.energy.govwdts...

310

ORISE: Research Team Experiences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science and Education (ORISE) brings together mentors and research teams to serve as a bridge between the classroom and the profession. ORISE recognizes the important role these...

311

Washing treatment of automotive shredder residue (ASR)  

Science Journals Connector (OSTI)

Abstract Worldwide, the amount of end-of-life vehicles (ELVs) reaches 50million units per year. Once the ELV has been processed, it may then be shredded and sorted to recover valuable metals that are recycled in iron and steelmaking processes. The residual fraction, called automotive shredder residue (ASR), represents 25% of the ELV and is usually landfilled. In order to deal with the leachable fraction of ASR that poses a potential threat to the environment, a washing treatment before landfilling was applied. To assess the potential for full-scale application of washing treatment, tests were carried out in different conditions (L/S=3 and 5L/kgTS; t=3 and 6h). Moreover, to understand whether the grain size of waste could affect the washing efficiency, the treatment was applied to ground (<4mm) and not-ground samples. The findings obtained revealed that, on average, washing treatment achieved removal rates of more than 60% for dissolved organic carbon (DOC), chemical oxygen demand (COD) and total Kjeldahl nitrogen (TKN). With regard to metals and chlorides, sulphates and fluoride leachable fraction, a removal efficiency of approximately 60% was obtained, as confirmed also by EC values. The comparison between the results for ground and not-ground samples did not highlight significant differences.

Raffaello Cossu; Tiziana Lai

2013-01-01T23:59:59.000Z

312

Anti-slip regulator system (ASR)  

Science Journals Connector (OSTI)

When wheelspin occurs the anti-slip regulator system (ASR) regulates the drive torque in such a way that steerability is always retained, together with good forward traction. The microprocessor which performs the regulating function compares the wheel speed increase at each driven wheel with the vehicle acceleration, and calculates the 'excess torque' which is causing wheelspin, and eliminates it automatically by briefly actuating the wheel brake and/or by backing off the throttle. At low speeds the wheel with the greatest amount of wheelspin is slowed by an exactly calculated brake application with a simultaneous reduction of engine power, so that the amount of forward traction is determined by the greatest available surface adhesion. At higher speeds, however, in order to avoid undesired yaw reactions, the system operates only by reducing engine power delivery by the necessary amount, which means that the amount of tractive force is determined by the lower surface adhesion value in each case.

B.-G. Schulze; E. Lissel

1987-01-01T23:59:59.000Z

313

Project Year Project Team  

E-Print Network [OSTI]

Project Year 2002 Project Team Faculty: Louise Pasternack, Chemistry Department, Krieger School, Krieger School of Arts & Sciences Project Title Introductory Chemistry Lab Demonstrations Audience an interactive virtual lab manual that will facilitate understanding of the procedures and techniques required

Gray, Jeffrey J.

314

Eleventh ARM Science Team Meeting Proceedings, Atlanta, Georgia, March 19-23, 2001  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Spectroscopic Remote Sensing of Clouds Spectroscopic Remote Sensing of Clouds S. V. Dvoryashin and G. S. Golitsyn A. M. Obukhov Institute of Atmospheric Physics Russian Academy of Sciences Moscow, Russia Introduction Cloud investigations using remote sensing are becoming increasingly significant. Parameters of particular interest include optical thickness, liquid water content, and liquid water path. At present, the following cloud parameters can be obtained from ground-based measurements: * optical thickness - from measurements of sunlight fluxes transmitted by a cloud * liquid water path - from measurements of absorption of microwave radiation by cloud droplets * cloud-bottom height - with the use of Lidar. The application of these methods of cloud investigation encounter some problems because measure-

315

Project Year Project Team  

E-Print Network [OSTI]

Project Year 2002 Project Team Faculty: Michael McCloskey, Cognitive Science/Neuroscience, Krieger of Arts & Sciences Project Title Cognitive Neuropsychology Audience The initial audience to access. The current procedure calls for individual students or researchers to contact the faculty member

Gray, Jeffrey J.

316

Project Year Project Team  

E-Print Network [OSTI]

-year section of the summer project will cost $1344.) This project will be measured by the CER surveys conductedProject Year 2005 Project Team Sean Greenberg, Faculty, Philosophy Department, Krieger School of Arts & Sciences; Kevin Clark, Student, Philosophy Department, Krieger School of Arts & Sciences Project

Gray, Jeffrey J.

317

Pretreatment of automobile shredder residue (ASR) for fuel utilization  

Science Journals Connector (OSTI)

Automobile shredder residue (ASR) was pretreated to improve its quality for fuel utilization. Composition analysis revealed that ASR components could be classified into four groups: (1) urethane and textilelight fraction and combustibles containing low levels of ash and Cl; (2) plastics and rubberlight or heavy fraction and combustibles containing high levels of Cl; (3) metals and electrical wireheavy fraction and incombustibles, and (4) particles smaller than 5.6mm with high ash contents. Based on these results, we successively performed sieving to remove particles smaller than 5.6mm, float and sink separations to reject the heavy fraction and plastics and rubber containing Cl, thermal treatment under an inert atmosphere to remove Cl derived from PVC, and char washing to remove soluble chlorides. This series of pretreatments enabled the removal of 78% of the ash and 91% of the Cl from ASR. Sieving using a 5.6-mm mesh removed a considerable amount of ash. Product quality was markedly improved after the float and sink method. Specifically, the sink process using a 1.1gcm?3 medium fluid rejected almost all rubber containing Cl and a large amount of PVC. The remaining Cl in char, after heating at 300C under an inert atmosphere and washing, was considered to be present as insoluble chlorides that volatilized at temperatures above 300C. Based on a tradeoff relationship between product quality and treatment cost, ASR may be utilized as a form of refuse plastic fuel or char.

I.H. Hwang; S. Yokono; T. Matsuto

2008-01-01T23:59:59.000Z

318

Analysis of lead content in automotive shredder residue (ASR)  

Science Journals Connector (OSTI)

Automotive shredder residue (ASR) is a very heterogeneous waste, which could have a very high metal content on finest fractions ? <6mm produced by the shredding of end of live vehicles. The approval of Directive 2000/53/EC and its transposition to the European Union member states requires an analytical technique for in-situ checking of the content of some metals in ASR wastes. The objective of this study is the evaluation of total Pb content in the different fractions using a rapid measurement method to easily accomplish the current legislation. An experimental Energy Dispersive X-ray Fluorescence (EDXRF) spectrometer with tri-axial geometry was used to analyse the ASR in order to test the feasibility of this analytical technique. Likewise, a correction of the intensities by the incoherent scattering (Compton) radiation was made to compensate the matrix effects. The results show that values in the smaller fractions are bigger (11,600mgkg?1 in the fraction <125?m) than in the coarser fractions (4600 mgkg?1 in the fraction between 2 and 6mm) and that such type of instrumentation enables a fast measurement with a limit of detection of 1.1mgkg?1 for 1000s measurement).

Oscar Gonzalez-Fernandez; Sofia Pessanha; Ignacio Queralt; Maria Luisa Carvalho

2009-01-01T23:59:59.000Z

319

Automotive shredder residue (ASR) characterization for a valuable management  

Science Journals Connector (OSTI)

Car fluff is the waste produced after end-of-life-vehicles (ELVs) shredding and metal recovery. It is made of plastics, rubber, glass, textiles and residual metals and it accounts for almost one-third of a vehicle mass. Due to the approaching of Directive 2000/53/EC recycling targets, 85% recycling rate and 95% recovery rate in 2015, the implementation of automotive shredder residue (ASR) sorting and recycling technologies appears strategic. The present work deals with the characterization of the shredder residue coming from an industrial plant, representative of the Italian situation, as for annual fluxes and technologies involved. The aim of this study is to characterize ASR in order to study and develop a cost effective and environmentally sustainable recycling system. Results show that almost half of the residue is made of fines and the remaining part is mainly composed of polymers. Fine fraction is the most contaminated by mineral oils and heavy metals. This fraction produces also up to 40% ashes and its LHV is lower than the plastic-rich one. Foam rubber represents around half of the polymers share in car fluff. Moreover, some chemicalphysical parameters exceed the limits of some parameters fixed by law to be considered refuse derived fuel (RDF). As a consequence, ASR needs to be pre-treated in order to follow the energy recovery route.

Luciano Morselli; Alessandro Santini; Fabrizio Passarini; Ivano Vassura

2010-01-01T23:59:59.000Z

320

Modeling the ASR Induced Strains and Cracking of Reinforced Concrete Beams  

E-Print Network [OSTI]

). ...................................................................................................... 14 Figure 1-4: Crack pattern observed in C-Beam specimen subjected to cracking due to ASR/DEF effects (Mander et al. 2012). .............................................. 16 Figure 1-5: Reinforcing steel strain from strain gauges by Mander et al... steel strains show substantial evidence of dilation due to ASR effects. This is also verified using post-test petrographic analysis. Results show that much of the ASR-induced damage is concentrated in the concrete cover, while the reinforcing cage...

Zhang, Li

2013-05-17T23:59:59.000Z

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


321

Assessment and strengthening of ASR and DEF affected concrete bridge columns.  

E-Print Network [OSTI]

??Alkali silica reaction (ASR) and delayed ettringite formation (DEF) are two causes of concrete deterioration. Both mechanisms cause expansion of concrete and thus extensive cracking. (more)

Talley, Kimberly Grau

2009-01-01T23:59:59.000Z

322

TEAM Technologies, Inc.  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Technologies, Inc. Technologies, Inc. A New Mexico owned, SBA certified 8(a)/SDB Small Business Pulsed Power Support TEAM Technologies Inc. opened its doors in 1985 as a one-man operation in support of Sandia's Z Machine, a mainstay of the Lab's Pulsed Power program. No longer a one-man shop, TEAM employs more than 70 people and operates over 36,000 square feet of work space in Sandia's Science & Technology Park. According to TEAM's owner and CEO Bob Sachs, much of TEAM's growth over the years has been as a supplier working with Sandia on the Z-Pinch fusion research program. "We were part of the original design and fabrication group for the supporting target hardware on the Z Machine, and we still work closely with that program. Over the years we've responded successfully to the

323

Is sustainability science really a science?  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Is sustainability science really a science? Is sustainability science really a science? The team's work shows that although sustainability science has been growing explosively...

324

DOE Solar Decathlon: 2005 Teams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

talking. talking. Members of the Maryland and Colorado teams became good neighbors and friends during Solar Decathlon 2002. Solar Decathlon 2005 Teams Eighteen teams of college and university students competed in the 2005 Solar Decathlon. The students and their amazing work took center stage on the National Mall in the nation's capital. Teams began assembly of their "solar village" on the Mall on September 29, 2005. Teams are made up of students pursuing degrees in engineering, architecture, computer science, public relations, marketing, and other disciplines. Just like the Olympic decathletes, they need to draw on all of their strengths and skills to troubleshoot, communicate, dream, and build these original solar homes. So, having a well-balanced team-rather than a team with just one or two

325

Automobile Shredder Residue (ASR) destruction in a plasma gasification reactor  

Science Journals Connector (OSTI)

Test results on Automobile Shredder Residue (ASR), or car fluff, demonstrated destruction efficiency and safe conversion to synthesis gas and a glass residue, in a plasma gasification system. The synthesis gas consists primarily of hydrogen and carbon monoxide in the range between 20 and 22 vol-% respectively, or 45 and 55 vol-% dry basis, when corrected for nitrogen. In dry reforming operation, carbon dioxide conversion approached 90%. The system is designed to work with oxygen in autothermal conditions, reducing thus the electric power requirement for the plasma reactor. The vitrified residue leach rate makes the product suitable for construction works.

Marco G. Tellini; Paolo Centola; James A. Batdorf; William J. Quapp

2007-01-01T23:59:59.000Z

326

Project Year Project Team  

E-Print Network [OSTI]

Project Year 2002 Project Team Faculty: Gregory Hager, Computer Science, Whiting School of Engineering Fellow: Alan Chen, Biomedical Engineering, Whiting School of Engineering Project Title Robotics is complicated, time-consuming, and costly, making a robot for an introductory-level class is not practical

Gray, Jeffrey J.

327

Project Team Elizabeth Rodini, Lecturer, Department of the History of Art, Krieger School of Arts & Sciences; Nora  

E-Print Network [OSTI]

Project Team Elizabeth Rodini, Lecturer, Department of the History of Art, Krieger School of Arts study, such as how collections are organized in a space, the history of collections through time in their architectural, historical, and narrative complexities. This "museum database" addresses several pedagogical

Gray, Jeffrey J.

328

Competition: School team launches a rocket  

Science Journals Connector (OSTI)

Competition: School team launches a rocket Conference: Norway focuses on physics teaching Science on Stage: Canadian science acts take to the stage Particle Physics: Teachers get a surprise at CERN Teaching: Exploring how students learn physics University: Oxford opens doors to science teachers Lasers: Lasers shine light on meeting Science Fair: Malawi promotes science education

329

Building America Research Teams | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Teams Teams Building America Research Teams Building America research projects are completed by industry consortia (teams) comprised of leading experts from across the country. The research teams design, test, upgrade and build high performance homes using strategies that significantly cut energy use. Building America research teams are selected through a competitive process initiated by a request for proposals. Team members are experts in the field of residential building science, and have access to world-class research facilities, partners, and key personnel, ensuring successful progress toward U.S. Department of Energy (DOE) goals. This page provides a brief description of the teams, areas of focus, and key team members. Advanced Residential Integrated Energy Solutions

330

Dr. William J. Gutowski will be hosting a science-team meeting of a DOE-sponsored project, "Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic using a High-  

E-Print Network [OSTI]

Regional Arctic Climate System Model". This is a collaborative project to: (i) develop a stateDr. William J. Gutowski will be hosting a science-team meeting of a DOE-sponsored project, "Towards Advanced Understanding and Predictive Capability of Climate Change in the Arctic using a High- Resolution

Debinski, Diane M.

331

Nuclear Materials Science:Materials Science Technology:MST-16...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

and actinide fundamental science. Alison Costello One for the team by Diana Del Mauro Alison Costello Surface Science and Corrosion team staff member Alison Costello and...

332

Building Technologies Office: Building America Research Teams  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Teams Teams Building America research projects are completed by industry consortia (teams) comprised of leading experts from across the country. The research teams design, test, upgrade and build high performance homes using strategies that significantly cut energy use. Building America research teams are selected through a competitive process initiated by a request for proposals. Team members are experts in the field of residential building science, and have access to world-class research facilities, partners, and key personnel, ensuring successful progress toward U.S. Department of Energy (DOE) goals. This page provides a brief description of the teams, areas of focus, and key team members. Advanced Residential Integrated Energy Solutions Alliance for Residential Building Innovation

333

ORAU Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

-OEWH-1831 -OEWH-1831 External Radiation Monitoring at the Y-12 Facility During the 1948-1949 Period G. D. Kerr, W. G. Tankersley, and J. P. Watkins P.O. Box 117 Oak Ridge, Tenn. 37831-0117 Oak Ridge Associated Universities (ORAU) is a university consortium leveraging the scientific strength of major research institutions to advance science and education by partnering with national laboratories, government agencies, and private industry. ORAU manages the Oak Ridge Institute for Science and Education for the U.S. Department of Energy. This document was produced under contract number DE-AC05-06OR23100 between the U.S. Department of Energy and Oak Ridge Associated Universities. Approved for public release; further dissemination unlimited.

334

Top Science of 2013  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RAPTOR telescope witnesses black hole birth science-innovationassetsimagesicon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique research...

335

Top Science of 2013  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

firsts pave way for greener, faster supercomputing science-innovationassetsimagesicon-science.jpg Top Science of 2013 Our strong interdisciplinary teaming and unique...

336

Science and Innovation  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Innovation science-innovationassetsimagesicon-science.jpg Science and Innovation Our strong interdisciplinary teaming and unique research facilities allow us to develop...

337

US science: The Obama experiment  

Science Journals Connector (OSTI)

... he announced other members of his future staff, who would make up a star-studded science team (see The ... team (see The science dream team): marine ecologist Jane Lubchenco would head the National Oceanographic and Atmospheric ...

Jeff Tollefson

2012-09-26T23:59:59.000Z

338

Leadership Team | ORNL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Find People General Contacts Leadership Team Media Contacts User Facility Contacts Internal Users Corporate Fellows Staff Directory Home | Our People | Leadership Team Leadership...

339

Speaker localization for microphone array-based ASR: the effects of accuracy on overlapping speech  

Science Journals Connector (OSTI)

Accurate speaker location is essential for optimal performance of distant speech acquisition systems using microphone array techniques. However, to the best of our knowledge, no comprehensive studies on the degradation of automatic speech recognition ... Keywords: audio-visual speaker tracking, microphone array ASR

Hari Krishna Maganti; Daniel Gatica-Perez

2006-11-01T23:59:59.000Z

340

RECOGNITION OF VOICE COMMANDS BY MULTISOURCE ASR AND NOISE CANCELLATION IN A SMART HOME ENVIRONMENT  

E-Print Network [OSTI]

In this paper, we present a multisource ASR system to detect home automation orders in various everyday colloquial or distress sentences as well as home automation orders. Techniques act- ing at the decoding stage to be made when music is used as background noise. Index Terms-- Home automation, smart home, distant speech

Boyer, Edmond

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


341

National Climate Assessment: Production Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NCA & Development Advisory Committee NCA & Development Advisory Committee Production Team Indicators System Coastal Resilience Resources Make Our Science Accessible Link Climate Change & Health Provide Data and Tools Coordinate Internationally National Climate Assessment: Production Team Print E-mail National Climate Assessment Staff (USGCRP National Coordination Office) Current NCA Staff Dr. Fabien Laurier, Director, Third National Climate Assessment Dr. Glynis Lough, Chief of Staff for the National Climate Assessment Emily Therese Cloyd, Engagement Coordinator for the National Climate Assessment Bryce Golden-Chen, Program Coordinator for the National Climate Assessment Alison Delgado, Scientist Dr. Ilya Fischhoffkri, Scientist Melissa Kenney, Indicators Coordinator Dr. Fred Lipschultz, Regional Coordinator for the National Climate Assessment

342

NSLS-II Integrated Project Team (IPT)  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NSLS-II Integrated Project Team NSLS-II Integrated Project Team DOE uses an integrated project teaming approach for managing the NSLS-II Project. This Integrated Project Team (IPT), organized and led by the NSLS-II Federal Project Director, is an essential element in DOE's acquisition process and is being used during all phases of the project's life cycle. This team consists of professionals representing diverse disciplines with the specific knowledge, skills, and abilities to support the Federal Project Director in successfully executing the project. The IPT for the NSLS-II Project will consist of members from both DOE and the contractor, Brookhaven Science Associates (BSA). The team membership will change as the project progresses from initiation to closeout to ensure the necessary skills are always represented to meet the project's needs.

343

Abstract PL04-01: Early Detection Research Network: Biomarker discovery and validation - A team approach  

Science Journals Connector (OSTI)

...Research Using Team Science to Make Advances in Cancer Prevention Using Team Science to Make Advances in...validation - A team approach Ian M. Thompson Jr...1University of Texas Health Science Center at San Antonio...Center, and a Data Management and Coordinating Center...

Ian M. Thompson, Jr

2011-10-01T23:59:59.000Z

344

Ichoku-Kahn_Mar_2013_DOE-ASR_satfire.ppt  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ichoku and Ralph Kahn Ichoku and Ralph Kahn Climate & Radiation Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD Station Fire in California, near JPL in Aug/Sep 2009 courtesy of http://hometown-pasadena.com/ Alaska Border Fires (summer 2004) with massive smoke emission Terra-MODIS image of July 01, 2004, 21:40 UTC courtesy of MODIS Rapid Response team Fire Affects Environ, AQ, Weather, and Climate Smoke Warming over Bright Surfaces (Ice and Clouds) Smoke Cooling over Dark Surfaces (Vegetation and Ocean) Smoke Affects Cloud Microphysics and Heating Rate Smoke PM and Gases Affect Air Quality Fire Disturbance to Ecosystem, Life & Property Black Carbon Deposition on Snow and Ice Global Fire Activity MODIS Fire detections for 10 days: Apr 30 - May 9, 2012

345

SustSciTeam_ProgramSummary_051611.xlsx.5/16/11 1Q 2Q 3Q Summer  

E-Print Network [OSTI]

-month) Orientation and Team Building Year 1 Sustainability Science ESS280A (4units) Independent Research XXX299 (4 units) Independent Research XXX299 (4 units) Summer Salary Sustainability Science Course; Define Team Report; Progress mtgs. Sustainability Science Team - Summary Schedule Apply to Sustainability Science

Rose, Michael R.

346

The relationship between vertical teaming in science and student achievement as reported in the academic excellence indicator system (AEIS) at selected public schools in Bexar County, Texas  

E-Print Network [OSTI]

....................................................... 125 Recommendations for Further Study.............................................. 126 REFERENCES ....................................................................................................... 128 VITA... identify areas that need more emphasis in order for students to succeed. In vertical teaming, teachers from different grade levels articulate curriculum in a subject in order to think globally about the needs of all students and identify gaps or overlaps...

Arteaga, Veronica Hernandez

2008-10-10T23:59:59.000Z

347

Team Leaders | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Leadership » Team Leaders Leadership » Team Leaders Team Leaders David Shafer Acting Director, Office of Site Operations and Team Leader, Asset Management More about David Shafer Patricia Poole-Shirriel Team Leader, Human Resource Management More about Patricia Poole-Shirriel John Montgomery Team Leader, Archives and Information Management Team More about John Montgomery Patrick Ring Team Leader, Benefits Continuity Team More about Patrick Ring Teresa Collins Team Leader, Administrative Team More about Teresa Collins April VanCamp Gil Team Leader, Environmental Team 1 More about April VanCamp Gil Karen Reed Team Leader, Environmental Team 2 More about Karen Reed Jane Powell Team Leader Planning, Budget, and Acquisition More about Jane Powell Raymond Plieness Acting Team Leader, Asset Management

348

Virtual Teams Demystified: An Integrative Framework for Understanding Virtual Teams  

Science Journals Connector (OSTI)

Virtual teams have been researched intensely in the last ten years and there is a growing body of literature on the topic. At this point, the authors need an integrative theory-driven framework through which they can conceptualize the notion of virtual ... Keywords: Emergent Team Processes, Emergent Team States, Information Technology, Team Design, Virtual Team Effectiveness, Virtual Teams

Olivier Caya; Mark Mortensen; Alain Pinsonneault

2013-04-01T23:59:59.000Z

349

The ESnet Engineering Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Publications and Presentations Galleries ESnet Awards and Honors ESnet Live Blog Home Engineering Services The ESnet Engineering Team Engineering Services The Network OSCARS...

350

Project Team Participants Summary  

E-Print Network [OSTI]

-sponsored by Information, Society & Culture) Energy--7 project teams 15 Schools and Institutes Represented Trinity College-Year Seminar: Mapping and Modeling Early Modern Venice #12;

Ferrari, Silvia

351

Grid Interaction Tech Team  

Broader source: Energy.gov (indexed) [DOE]

Team 2011 DOE Hydrogen Program and Vehicle Technologies Annual Merit Review May 10, 2011 Keith Hardy (PI) Argonne National Laboratory Sponsored by Lee Slezak This presentation does...

352

Science  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Science newsroomassetsimagesscience-icon.png Science Cutting edge, multidisciplinary national-security science. Health Space Computing Energy Earth Materials Science...

353

DOE Solar Decathlon: Team Belgium: Ghent University  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Team Belgium: Ghent University Team Belgium: Ghent University Ghent University's E-Cube is being rebuilt at the West Flemish Greenbridge Science Park, located in the outer port of Oostende, Belgium. Following U.S. Department of Energy Solar Decathlon 2011, the Ghent University team applied for funding to rebuild the E-Cube as a zero-energy test house to provide experimental data for faculty and other researchers. The house will also be used as a demonstration project for innovative renewable energy technologies. For the Solar Decathlon 2011, Team Belgium aimed for simplicity with E-Cube. Its market appeal was its simple construction methods and its affordability. The house was designed as a building kit for a self-builder who lacks the time and expertise to build a house from scratch. This

354

PRODUCTION TEAM Team Leader: Julia C. White Publication Director: Dawn Levy  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PRODUCTION TEAM PRODUCTION TEAM Team Leader: Julia C. White Publication Director: Dawn Levy Editors: Priscilla Henson, Dawn Levy Contributing Science Writers: Cheryl Drugan, Eric Gedenk, Kathryn Jandeska, Scott Jones, Dawn Levy, Caitlin Rockett, Leo Williams, Laura Wolf Graphic Designer: Jason Smith Reviewers: Arthur Bland, Susan Coghlan, James J. Hack, Bronson Messer, Paul Messina, Michael Papka, Katherine Riley, Julia C. White Advisors: Ashley Barker, Jayson Hines, David Martin CONTACT Julia C. White INCITE Manager Phone: 865-241-8796 whitejc@DOEleadershipcomputing.org The research described herein was made possible through awards of computer time provided through the Innovative and Novel Computational Impact on Theory and Experiment (INCITE) program. The research

355

Overview of the Climate Change Science Program \\(by Richard Moss...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3 ARM Science Team Meeting The U.S. Climate Change Science Program Strategic Plan 2003 ARM Science Team Meeting The U.S. Climate Change Science Program Strategic Plan Susan K....

356

The influence of high quantity of fly ash on reducing the expansion due to ASR in the presence of alkalis  

E-Print Network [OSTI]

A testing program was devised to study the role of high volume fly ash (HVFA) in reducing the expansion caused by alkali-silica reaction (ASR). A series of modified ASTM C 1260 tests were performed, where the replacement of cement by Class F fly ash...

Mohidekar, Saleel D.

2000-01-01T23:59:59.000Z

357

Unique University and Utility Team Reduces Energy and Pollutants  

E-Print Network [OSTI]

In 1992 the Center for Energy Systems Research of the College of Engineering and Applied Sciences and the Arizona State University (ASU) Facilities Management Department formed a unique Demand Side Management (DSM) team dedicated to reducing energy...

Smith, K. L.; Traill, D. A.; Sears, R. L.; Spielman, M.

358

A-Team Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 8 A-Team Report We are pleased to introduce a new department to CBS News. In each issue, you will find a brief update on projects being conducted by our new Applications Team. The Houston air traffic control tower The A-Team has completed the first phase of work to help the Federal Aviation Administration become more energy-efficient (CBS News, Fall 1994). Phase one includes a detailed energy audit of an example of each type of facility in the FAA building stock, located in the Houston metropolitan region. Air route traffic control center Terminal radar approach control Automated flight service station Air traffic control tower (commercial airport) Air traffic control tower (private airport) Air surveillance radar Air route surveillance radar The team has identified significant potential energy savings from energy-

359

A-Team Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 8 A-Team Report The Applications Team is a joint venture of the Energy & Environment Division and the Lab's Facilities/In-House Energy Management Section. Its goals are to speed the transfer of new and underused energy-efficient technology for buildings, to support demonstrations of these technologies in a variety of facilities showing how they can be adopted widely, and to improve communication between the Lab and the users of efficient building technologies, from engineering construction firms to building managers. The A-Team is involved in a growing number of chiller plant efficiency projects aimed at demonstrating how cooling systems in many settings can be made more efficient. In addition to the projects described in the cover story, A-Team efforts in

360

Nuclear Emergency Search Team  

Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

To establish Department of Energy (DOE) policy for Nuclear Emergency Search Team (NEST) operations to malevolent radiological incidents. This directive does not cancel another directive. Canceled by DOE O 153.1.

1991-09-20T23:59:59.000Z

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

Rocky flats teams forming  

SciTech Connect (OSTI)

Bidding teams are shaping up to go after the $3.5-billion, five-year contract to manage ongoing operations and cleanup of the US Dept. of Energy`s Rocky Flats nuclear weapon plant near Denver.

NONE

1994-08-01T23:59:59.000Z

362

Automotive shredder residue (ASR): Reviewing its production from end-of-life vehicles (ELVs) and its recycling, energy or chemicals valorisation  

Science Journals Connector (OSTI)

ASR is in Europe classified as hazardous waste. Both the stringent landfill legislation and the objectives/legislation related to ELV treatment of various countries, will limit current landfilling practice and impose an increased efficiency of the recovery and recycling of ELVs. The present paper situates ASR within the ELV context. Primary recovery techniques recycle up to 75% of the ELV components; the remaining 25% is called ASR. Characteristics of ASR and possible upgrading by secondary recovery techniques are reviewed. The latter techniques can produce a fuel- or fillergrade ASR, however with limitations as discussed. A further reduction of ASR to be disposed of calls upon (co-)incineration or the use of thermo-chemical processes, such as pyrolysis or gasification. The application in waste-to-energy plants, in cement kilns or in metallurgical processes is possible, with attention to the possible environmental impact: research into these impacts is discussed in detail. Pyrolysis and gasification are emerging technologies: although the sole use of ASR is debatable, its mixing with other waste streams is gradually being applied in commercial processes. The environmental impacts of the processes are acceptable, but more supporting data are needed and the advantage over (co-)incineration remains to be proven.

I. Vermeulen; J. Van Caneghem; C. Block; J. Baeyens; C. Vandecasteele

2011-01-01T23:59:59.000Z

363

The I in Team: Coach Incivility, Coach Sex, and Team Performance in Female Basketball Teams  

E-Print Network [OSTI]

emergent states relationship. The current study used a sample of female college basketball teams to test the proposed model. Results revealed that leader incivility had a detrimental effect on team emergent states and subsequently team performance...

Smittick, Amber Leola

2012-10-19T23:59:59.000Z

364

Strategies for the enhancement of automobile shredder residues (ASRs) recycling: Results and cost assessment  

Science Journals Connector (OSTI)

Abstract With reference to the European regulation about the management of End-of-Life Vehicles (ELVs), Directive 2000/53/EC imposes the achievement of a recycling target of 85%, and 95% of total recovery by 2015. Over the last few years many efforts have been made to find solutions to properly manage the waste coming from \\{ELVs\\} with the aim of complying with the targets fixed by the Directive. This paper focuses on the economical evaluation of a treatment process, that includes physical (size and density), magnetic and electrical separations, performed on the light fraction of the automobile shredder residue (ASR) with the aim of reducing the amount of waste to dispose of in a landfill and enhancing the recovery of valuable fractions as stated by the EU Directive. The afore mentioned process is able to enhance the recovery of ferrous and non-ferrous metals of an amount equal to about 1% b.w. (by weight) of the ELV weight, and to separate a high energetic-content product suitable for thermal valorization for an amount close to (but not higher than) 10% b.w. of the ELV weight. The results of the economical assessment led to annual operating costs of the treatment ranging from 300,000/y to 350,000 /y. Since the considered plant treats about 13,500metrictons of ASR per year, this would correspond to an operating cost of approximately 2025/t. Taking into account the amount and the selling price of the scrap iron and of the non magnetic metal recovered by the process, thus leading to a gain of about 30/tperton of light ASR treated, the cost of the recovery process is balanced by the profit from the selling of the recovered metals. On the other hand, the proposed treatment is able to achieve the fulfillment of the targets stated by Directive 2000/53/EC concerning thermal valorization and reduce the amount of waste generated from ELV shredding to landfill.

Barbara Ruffino; Silvia Fiore; Maria Chiara Zanetti

2014-01-01T23:59:59.000Z

365

DOE/SC-ARM-13-008 First ARM/ASR Radar Workshop: Workshop  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 8 First ARM/ASR Radar Workshop: Workshop Summary and Recommendations KB Widener and P Kollias May 2013 DISCLAIMER This report was prepared as an account of work sponsored by the U.S. Government. Neither the United States nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise, does not necessarily constitute or imply its endorsement, recommendation, or

366

CERTS 2012 Program Review - Automatic Reliability Reports (ARR) Research & Implementation - Carlos Martinez, ASR Inc.  

Broader source: Energy.gov (indexed) [DOE]

Reliability Reports (ARR) Reliability Reports (ARR) Grid Reliability Performance Metrics Using Model-Less Algorithms Prototype Development and Field Demonstration at MISO Carlos Martinez - Advanced Systems Researchers (ASR) June 12-13, 2012 Washington, D.C. FY12 DOE/NETL Transmission Reliability R&D Internal Program Review Page 0 Presentation Outline  Automatic Reliability Reports (ARR) Background  Grid Reliability Metrics Prototype Objectives  Technical Accomplishments during FY2012 and Next Action Items  Risk Factors Affecting Timely Completion  Follow up Work for FY13  Overview of prototype at MISO: Architecture, Grid Monitoring Visualization and Grid Reliability Tracking Grid Automatic Reliability Report (GARR) Page 1 Automatic Reliability Reports (ARR)

367

Optimal dimensions minimizing expected travel time of a single machine flow rack AS/RS  

Science Journals Connector (OSTI)

Abstract In this paper, the aim is to determine the optimal dimensions of a flow rack automated storage and retrieval system (AS/RS) using a single machine for storage and retrieval operations. These optimal dimensions are evaluated for minimum expected travel times of the storage and retrieval machine. An enumeration technique is used on a large range of system configurations going from 100 to 20,000 storage segments. Initially, optimization is carried out on six travel time expressions dealing with single and dual cycle travel times considering two dwell point positions. The results are then studied to investigate the influence of travel time expressions on both optimal dimensions and the shape factor of the system rack. Secondly, a new generalized mathematical model was developed by introducing an occurrence proportion parameter, relative to dual cycles, in order to determine the influence of the system functioning (proportion of dual cycles and load rate) on optimal dimensions.

Mohammed Adel Hamzaoui; Zaki Sari

2014-01-01T23:59:59.000Z

368

Heavy metals' content of automotive shredder residues (ASR): Evaluation of environmental risk  

Science Journals Connector (OSTI)

Every year between 8 and 9 millions of vehicles in the European Union arrive to their end of life. Car wastes can have a very high metal content, falling into hazardous waste class. A preliminary evaluation of these wastes could be made by metals' leaching test runs which is the main objective of the present study. Evaluation of the total metal content was carried out by X-ray fluorescence and the mobility of these metals using two simple standardized extractions such as the TCLP (Toxicity Characterisation Leaching Procedure) of the US EPA and the German leaching test DIN 38414S4. Additionally, an extraction test with acetone was performed in order to recognise metals bounded to organic matter. The results show that the total metal content of the ASR can overpass the established values for inert residues. Lead and zinc contents are fairly well correlated with grain-size, whilst other metals' contents do not exhibit clear grain-size dependence.

O. Gonzalez-Fernandez; M. Hidalgo; E. Margui; M.L. Carvalho; I. Queralt

2008-01-01T23:59:59.000Z

369

Rediness Review Team Leader Training  

Broader source: Energy.gov (indexed) [DOE]

LEADER LEADER TRAINING Idaho National Engineering Laboratory Idaho National Engineering Laboratory Michael Hillman DOE-HSS HQ Dan M. Stover, PE Technical And Professional Services, Inc. November 10 2010 Official DOE Team Leader Readiness Review Training November 10, 2010 READINESS REVIEW TEAM LEADER TRAINING Introduction & Course Conduct Readiness Review Official DOE Team Leader Readiness Review Training TRAINING READINESS REVIEW TEAM LEADER TRAINING Purpose of this Course Provide prospective Readiness Review Team Leaders with: -An understanding of the Team Leader Roles and Responsibilities -Methods to control team dynamics -Methods to manage interaction with the assessed organization Methods to manage interaction with the assessed organization

370

An I-P-O model of team goal, leader goal orientation, team cohesiveness, and team effectiveness  

E-Print Network [OSTI]

Based on a proposed input-process-output model of team goal, leader goal orientation, team cohesion, and team effectiveness, this study examined the influences of the leader trait goal orientation on the relationships between team goals and team...

Yu, Chien-Feng

2006-04-12T23:59:59.000Z

371

Delivery Tech Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Tech Team Tech Team Oak Ridge National Laboratory January, 2005 Team Members * Tony Bouza: DOE * Nick Burkhead: SC * Dan Casey: CVX * Maria Curry- Nkansah: BP* * Jim Kegerreis: XOM * George Parks: COP** * Mark Paster: DOE** * Steve Pawel: ORNL * Jim Simnick: BP * FOG Liaison ** Co-Leads Shawna McQueen (Energetics): Facilitator Mission * Provide a forum for the Partnership to help advance research aimed at developing low cost, safe, and energy efficient hydrogen delivery systems * Catalyze the development of hydrogen delivery technologies that enable the introduction and long-term viability of hydrogen as an energy carrier for transportation and stationary power Useful Facts * 1 kg H 2 = 1 gallon gasoline * Eff FCV = 2-3 x Eff ICEV = 1.2-1.4 x Eff HEV * Energy Density - 10,000 psi H 2 = 1.3 kWhr/l

372

Fuel Cells Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Judith Valerio at one of our 31 single-cell test stands Fuel Cell Team The FC team focus is R&D on polymer electrolyte membrane (PEM) fuel cells for commercial and military applications. Our program has had ongoing funding in the area of polymer electrolyte fuel cells since 1977 and has been responsible for enabling breakthroughs in the areas of thin film electrodes and air bleed for CO tolerance. For more information on the history of fuel cell research at Los Alamos, please click here. Fuel cells are an important enabling technology for the Hydrogen Economy and have the potential to revolutionize the way we power the nation and the world. The FC team is exploring the potential of fuel cells as energy-efficient, clean, and fuel-flexible alternatives that will

373

Composite Adversary Team Program  

Broader source: Energy.gov (indexed) [DOE]

introduCtion introduCtion The Office of Security Evaluations, within the Office of Health, Safety and Security's Office of Independent Oversight, provides national-level oversight of safeguards and security programs throughout the Department of Energy (DOE) and the National Nuclear Security Administration. Independent Oversight established the Composite Adversary Team (CAT) to provide a group of

374

Project Year Project Team  

E-Print Network [OSTI]

An Engineer's Guide to the Structures of Baltimore Audience Students from the Krieger School of Arts City, interfaced through a course website, the team will integrate descriptions of structural behavior format. Technologies Used HTML/Web Design, MySQL Project Abstract Structural analysis is typically taught

Gray, Jeffrey J.

375

Project Year Project Team  

E-Print Network [OSTI]

Project Year 2005 Project Team Krysia Hudson, Faculty, School of Nursing, Undergraduate Instruction for Educational Resources Project Title Enhanced Web-based Learning Environments for Beginning Nursing Students (e.g., demonstrations of procedures or tasks) into the WBL systems, it will be possible to increase

Gray, Jeffrey J.

376

Project Year Project Team  

E-Print Network [OSTI]

, there is no resource available to view the procedure before class. Solution The purpose of this project is to capture available to view the procedure before class. The purpose #12;of this project is to capture variousProject Year 2007 Project Team Kristina Obom, Faculty, Advanced Academic Programs, Krieger School

Gray, Jeffrey J.

377

Project Year Project Team  

E-Print Network [OSTI]

design goals for this project include low cost (less than $30 per paddle) and robustness. The projectProject Year 2001 Project Team Faculty: Allison Okamura, Mechanical Engineering, Whiting School Project Title Haptic Display of Dynamic Systems Audience 30 to 40 students per year, enrolled

Gray, Jeffrey J.

378

First National Climate Assessment: Production Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Production Team Print E-mail Production Team Print E-mail The National Assessment Synthesis Team (NAST) was a committee of experts drawn from governments, universities, industry, and non- governmental organizations. It was responsible for broad oversight of the First National Assessment, with the Federal agencies of the USGCRP. Click on the buttons below to read more about the NAST team members. Jerry M. Melillo (Co-chair) Dr. Jerry M. Melillo (B.A. Wesleyan University, CT; Ph.D. Yale University) is in his twenty-fifth year as a research scientist at The Ecosystems Center of the Marine Biological Laboratory in Woods Hole, Massachusetts, and currently serves as the Center's Co-Director. Dr. Melillo's research on biogeochemistry includes work on global change, the ecological consequences of tropical deforestation, and sustainable management of forest ecosystems. He was a covening lead author on the 1990 and 1995 IPCC assessments of climate change. He has served as a vice-chair of the International Geosphere-Biosphere Programme (IGBP) and is currently President of ICSU's Scientific Committee on Problems of the Environment (SCOPE). Dr. Melillo founded the Marine Biological Laboratory's Semester in Environmental Science, an education program for undergraduates from small liberal arts colleges and universities in which students spend a term learning and doing environmental science in Woods Hole. Dr. Melillo also has a strong interest in science policy. He served as the Associate Director for Environment at the Office of Science and Technology Policy in the Executive Office of the President for 15 months in 1996 and 1997.

379

Team Summary | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Team Summary Team Summary Team Summary Team Summary Purpose: Identify, prioritize, and resolve issues for effective site revitalization. Address crosscutting issues. Incorporate ARI's mission into programmatic business practices. Team Attributes and Functions: Coordinate using existing site and program protocols (ARI Task Force is not responsible for site-specific ARI projects or programs). Resolve issues through: Lessons learned Information resources Policy statements Process improvement techniques Proposed legislative changes Partnering with other agencies Facilitation Define, prioritize, and establish deliverable timelines and manage resources. Incorporate co-leadership and cross-functional membership. Team Summaries: Steering Committee Objective: Set the strategic direction, provide overarching leadership,

380

International Approaches to Advancing Biospecimen Science  

Science Journals Connector (OSTI)

...culture of financial management and own financial...for budgeting and management. Team Science Is a Powerful Approach, but the Team Still...move biomedical science. But, in conducting...and information management and analysis. We...

Helen M. Moore; Carolyn C. Compton; Joseph Alper; and Jimmie B. Vaught

2011-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Student Teams from Massachusetts and California Win Energy Department's  

Broader source: Energy.gov (indexed) [DOE]

Student Teams from Massachusetts and California Win Energy Student Teams from Massachusetts and California Win Energy Department's 22nd National Science Bowl Student Teams from Massachusetts and California Win Energy Department's 22nd National Science Bowl April 30, 2012 - 3:17pm Addthis Washington D.C. - Underscoring the Obama Administration's investments in science, technology, engineering, and math (STEM) and ensuring educational opportunities are available to students across the nation, U.S. Energy Secretary Steven Chu announced that Lexington High School from Lexington, Massachusetts, and Hopkins Junior High School from Fremont, California, won the 2012 U.S. Department of Energy (DOE) National Science Bowl today at the National Building Museum in Washington, D.C. Nearly 14,000 students have competed in regional tournaments since January, in

382

Commissioning Team | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Commissioning Team Commissioning Team Commissioning Team October 16, 2013 - 4:45pm Addthis Assembling a committed team is a critical part of the commissioning process for renewable energy projects. Members of the team vary based on the size, complexity, and funding mechanism used for the project at hand. The commissioning team lead is a commissioning agent, an independent agent representing the agency's interests. In addition to the commissioning agent, participants in the commissioning process can include the agency, operations and management (O&M) personnel, contractors, subcontractors, and the architectural and engineering (A&E) firm. The project energy lead should also be an active member of the commissioning team and work closely with the commissioning agent. Renewable energy projects often require a team of experts in specific

383

Roadmap Integration Team Presentation  

Broader source: Energy.gov (indexed) [DOE]

Presentation Presentation NP03-00 Slide 1 Generation IV Technology Roadmap NERAC Meeting: Washington, D.C. September 30, 2002 Roadmap Integration Team Presentation NP03-00 Slide 2 NERAC Meeting September 30, 2002 Generation IV Technology Roadmap * Identifies systems deployable by 2030 or earlier * Specifies six systems that offer significant advances towards: - Sustainability - Economics - Safety and reliability - Proliferation resistance and physical protection * Summarizes R&D activities and priorities for the systems * Lays the foundation for Generation IV R&D program plans Roadmap Integration Team Presentation NP03-00 Slide 3 NERAC Meeting September 30, 2002 The Technical Roadmap Report * Discusses the benefits, goals and challenges, and the importance of the fuel cycle * Describes evaluation and selection process

384

Integrated Project Team RM  

Broader source: Energy.gov (indexed) [DOE]

Integrated Project Team (IPT) Review Module Integrated Project Team (IPT) Review Module March 2010 CD-0 This R O 0 Review Modul OFFICE OF Inte C CD-1 le was piloted F ENVIRO Standard R grated P Rev Critical Decis CD-2 M at the OR U 23 incorporated ONMENTAL Review Plan Project Te view Module sion (CD) Ap CD March 2010 33 Disposition in the Review L MANAGE n (SRP) eam (IPT e pplicability D-3 Project in 200 Module. EMENT T) CD-4 09. Lessons lea Post Ope arned have been eration n Standard Review Plan, 2 nd Edition, March 2010 i FOREWORD The Standard Review Plan (SRP) 1 provides a consistent, predictable corporate review framework to ensure that issues and risks that could challenge the success of Office of Environmental Management (EM) projects are identified early and addressed proactively. The internal EM

385

LBNL Ergo Team  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LBNL Ergo Team LBNL Ergo Team With LBNL Ergo Advocates and Safety Coordinators, we have, together, built a world- class Ergonomics Program. In an effort to sustain this momentum, we"re launching a semi-annual forum for advancing our knowledge in ergonomics. Our first seminar will occur on Wednesday, February 22 nd from 1:30-3PM in Perseverance Hall. UC Prof. David Rempel, MD, MPH will discuss how recent research on computer use can help us all become more effective in our ergo work. Click here for further info on this world- renowned researcher. No need to sign up ahead of time, just come on down and bring your questions and curiosity - we"re sure it will be worth your while. Please see schedule at left. Volume 3, Issue 3 February 2012 By Popular Demand -- Ergo Seminar Series!

386

A-Team Report  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

8 8 A-Team Report Cool Sense The Cool Sense program, the latest project undertaken by the Applications Team, aims to bring information about integrated chiller retrofits to the people in charge of the 80,000 chillers in the United States currently using CFC refrigerants. Production of CFC refrigerants ceased in 1996 as a result of an international agreement to limit their effects on the atmosphere's ozone layer. This moratorium is expected to bring about an unprecedented wave of 20,000 chiller replacements or conversions by the year 2000. If no integrated retrofits are made, the capital investment needed to replace these chillers will be $1.8 billion, for a savings of $5 billion over the lifetime of the chillers. If only half the replacements are made in conjunction with integrated retrofits, the investment will be $7.89

387

Water Energy Tech Team  

Broader source: Energy.gov [DOE]

The purpose of the DOE Water-Energy Tech Team (WETT) is to identify and pursue cross-cutting technology, data, modeling, analysis, and policy priorities for the Department relevant to the water-energy nexus. The WETT also facilitates coordination of activities within the department and outreach with other stakeholders. The water-energy nexus is integral to two DOE policy priorities: climate change and energy security.

388

TRU TeamWorks  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

, 2004 , 2004 By the Numbers WIPP marks five-year anniversary Shipments scheduled to arrive at WIPP for the week of 4/4/04 - 4/10/04: 18 Total shipments received at WIPP: 2,456 Total volume disposed at WIPP: 19,042 m 3 FY04 Performance Metrics D E P A R T M E N T O F E N E R G Y U N I T E D S T A T ES O F A M E R I C A TeamWorks TeamWorks TRU A weekly e-newsletter for the Waste Isolation Pilot Plant team For those who endured the early morning cold of March 26, 1999, to witness WIPP's first shipment, it may seem like yesterday. Yet Friday marked five years of WIPP operations. Relative newcomer to WIPP - but not to the waste management industry - CBFO Deputy Manager Lloyd Piper observed, "The transformation from a facility in "standby" mode to operational mode has been nothing short of amazing."

389

PI & Project Team PAF Changes  

E-Print Network [OSTI]

Proposal Management PI & Project Team PAF Changes Step-By-Step Procedures Last updated: 4/1/2013 1 of 10 http://eresearch.umich.edu PAF Changes This procedure details how the PI & Project Team can: Make Management PI & Project Team PAF Changes Step-By-Step Procedure Last updated: 4/1/2013 3 of 10 http

Shyy, Wei

390

Literacy effects on language and vision: Emergent effects from an amodal shared resource (ASR) computational model  

Science Journals Connector (OSTI)

Abstract Learning to read and write requires an individual to connect additional orthographic representations to pre-existing mappings between phonological and semantic representations of words. Past empirical results suggest that the process of learning to read and write (at least in alphabetic languages) elicits changes in the language processing system, by either increasing the cognitive efficiency of mapping between representations associated with a word, or by changing the granularity of phonological processing of spoken language, or through a combination of both. Behavioural effects of literacy have typically been assessed in offline explicit tasks that have addressed only phonological processing. However, a recent eye tracking study compared high and low literate participants on effects of phonology and semantics in processing measured implicitly using eye movements. High literates eye movements were more affected by phonological overlap in online speech than low literates, with only subtle differences observed in semantics. We determined whether these effects were due to cognitive efficiency and/or granularity of speech processing in a multimodal model of speech processing the amodal shared resource model (ASR, Smith, Monaghan, & Huettig, 2013a,b). We found that cognitive efficiency in the model had only a marginal effect on semantic processing and did not affect performance for phonological processing, whereas fine-grained versus coarse-grained phonological representations in the model simulated the high/low literacy effects on phonological processing, suggesting that literacy has a focused effect in changing the grain-size of phonological mappings.

Alastair C. Smith; Padraic Monaghan; Falk Huettig

2014-01-01T23:59:59.000Z

391

Dual effectiveness of lithium salt in controlling both delayed ettringite formation and ASR in concretes  

Science Journals Connector (OSTI)

The influence of lithium nitrate on expansions due to delayed ettringite formation (DEF) and alkali-silica reaction (ASR) has been investigated. Effects of the lithium salt were examined in heat-cured mortars and concretes containing one or both damage mechanisms. The mortars and concretes made using reactive and/or non-reactive aggregates were subjected to heat treatment consisting of a hydration delay period of 4h at 23C followed by steam-curing at 95C and then stored in limewater. Results showed that the lithium salt admixture was able to reduce the occurrence of deleterious expansion due to delayed ettringite formation in addition to controlling alkali-silica reaction in cementitious systems containing one or both mechanisms. In concretes made using non-reactive limestone aggregates, incorporation of lithium nitrate in a proportion of 0.74M ratio of Li to (Na+K) was found to control delayed ettringite formation during the one-year period of this study. By analyzing the leaching properties of lithium and other alkalis from mortars during storage, it was found that a substantial amount of lithium was retained in the cementitious system in a slightly soluble form, and is expected to be responsible for reducing DEF.

S.O. Ekolu; M.D.A. Thomas; R.D. Hooton

2007-01-01T23:59:59.000Z

392

Rediness Review Team Member Training  

Broader source: Energy.gov (indexed) [DOE]

MEMBER MEMBER TRAINING Idaho National Engineering Laboratory Michael Hillman DOE HQ - HSS Idaho National Engineering Laboratory Dan M. Stover, PE Technical And Professional Services, Inc. 47 James Habersham Blvd Beaufort, SC 29906 Official DOE Team Member Readiness Review Training November 8-9, 2010 Module 1 Module 1 READINESS REVIEW TEAM MEMBER TRAINING Introduction & Course Conduct Readiness Review Readiness Review Official DOE Team Member Readiness Review Training November 2010 TRAINING READINESS REVIEW TEAM MEMBER TRAINING Purpose of this Course Provide Prospective Readiness Review Team members h with: * An understanding of the background behind the Readiness Review Process; e e ocess; * Training in the mechanics of performance and reporting of

393

Planning Team | Department of Energy  

Broader source: Energy.gov (indexed) [DOE]

Planning Team Planning Team Planning Team October 16, 2013 - 5:11pm Addthis Photo of three men standing together reviewing a large print document. The men have bright orange and yellow construction vests and hard hats. A data center manager reviews blueprints with an IT project manager and data center coordinator during construction of a Federal facility. Planning is the time to bring renewable energy expertise to the table, including a strong renewable energy planning team that will be part of the project though completion. It is important to have a team in place with the skills required to advocate for renewable energy and the agency's best interests throughout the project. The planning team set the goals and objectives for the project as well as criteria for design team selection and should be convened at the outset of

394

Information Visualization for Agile Software Development Teams  

E-Print Network [OSTI]

Information Visualization for Agile Software Development Teams Julia Paredes Department of Computer software development teams. The results of the systematic mapping show that Agile teams use visualization artifacts amongst team members. Keywords--Agile software development, information visualiza- tion, software

Maurer, Frank

395

Team Total Points Beta Theta Pi 2271  

E-Print Network [OSTI]

Bubbles 40 Upset City 30 Team Success 30 #12;Team Total Points Sly Tye 16 Barringer 15 Fire Stinespring 15

Buehrer, R. Michael

396

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Objective Criterion to Distinguish Seasons in Arctic Climate Objective Criterion to Distinguish Seasons in Arctic Climate Ivanova, K., Harrington, J.Y., Verlinde, J., Clothiaux, E.E., and Bahrmann, C.P., Pennsylvania State University Seasons are an important, though not always quantified, part of many climatologies. In particular, the breakdown of the annual cycle into seasons is important for cloud climatologies. Though one is always free to choose any averaging time-period one wants, it is usually best to choose time-periods during which the atmospheric forcing produces, perhaps, similar types of weather, or similar statistics. In Arctic research, breaking the year into seasons is also done to examine clouds synoptic-scale forcing of clouds, frontal frequencies, and so on. However, with few exceptions, the arctic seasons are defined commensurately with the

397

ARM - Publications: Science Team Meeting Documents: Simultaneously  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Simultaneously retrieving cloud optical depth and effective radius for Simultaneously retrieving cloud optical depth and effective radius for clouds with low liquid water path Min, Qilong State University of New York at Albany Duan, Minzheng State University of New York at Albany A new technique for simultaneously retrieving cloud optical depth and effective radius has been proposed. This approach is based on the angular distribution of scattered light in the forward scattering lobe of cloud drops. The angular distributions can be observed by multiple shadowband scans. Simulations demonstrate that accuracies for cloud optical depth, effective radius, and liquid water path are 2%, 10%, and 2g/m2, respectively for given possible instrument noise and uncertainties. Further, different measurement strategies have been tested and show good

398

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

On Aerosol Optical Depth Determination from Zenith Measurements of On Aerosol Optical Depth Determination from Zenith Measurements of Scattered Light Polarization Degree Shukurov, A.Kh., Shukurov K.A., and Golitsyn G.S., A.M. Obukhov Institute of Atmospheric Physics RAS Investigations on relationships between variations of aerosol optical depth τaer and maximal polarization degree Pmax of scattered light (from part of a sky within 90 angular distance of Sun in its almucantar or vertical) are well known (see e.g. Coulson K.L. Izvestia Atmospheric Oceanic Physics. V.10, No.3, 1974). But these results show insufficient correlation coefficient R between Pmax and τaer. In the current work the results of measurements of variations P(h) dependence of polarization degree P on the Sun angular height () obtained from zenith measurements of scattered light

399

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Concepts for Improved Performance of Dynamical and Microphysical New Concepts for Improved Performance of Dynamical and Microphysical Parameterization of Clouds Sud, Y.C.(a) and Walker, G.K.(b), NASA/Laboratory for Atmospheres Goddard Space Flight Center Three new concepts were launched for: i) simulating more shallow convection, ii) capturing mid-level convection and iii) better simulating the boundary-layer convection forced boundary-layer clouds. Each process was prameterized and evaluated in the ARM-CART SCM environment. The individual and combined influence of these on the simulated boundary-layer, shallow cumulus, mid-level cloudiness were examined. In addition, a physically based vertical adjustment of the advective air-mass transport was parameterized to better capture the isentropic character of horizontal advection. This modification eliminated the near surface temperature biases

400

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The CCPP-ARM Parameterization Test Bed (CAPT) The CCPP-ARM Parameterization Test Bed (CAPT) Potter, G.L.(a), Williamson, D.L.(b), Cederwall, R.T.(a), and Xie, S.(a), Lawrence Livermore National Laboratory (a), National Center for Atmospheric Research (b) In an attempt to improve GCMs that are used to project future climate change, we have borrowed a technique from the NWP community to identify and isolate model errors. We are using high-frequency (~6 hourly) NWP analyses both to realistically initialize (using the state fields: T, U, V, Q, and Ps) a climate GCM to evaluate the accuracy of its subsequent short-range weather forecasts and to diagnose the structure and growth of the identified forecast errors. The rationale is that most of the climate GCM's forecast errors can be attributed to parameterization deficiencies, once

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

New Meteorological Applications Using AERI Thermodynamic Profiling New Meteorological Applications Using AERI Thermodynamic Profiling Feltz, W.F.(a), Howell, H.B.(a), Knuteson, R.O.(a), Mecikalski, J.(b), Bedka, K.(a), Tanamachi, R.L.(c), and Posselt, D.(d), University of Wisconsin SSEC/CIMSS (a), University of Alabama - Huntsville (b), University of Oklahoma (c), Colorado State University (d) The DOE ARM program has supported the development of a robust and operational thermodynamic retrieval algorithm using AERI high spectral resolution infrared radiances. These retrievals of temperature and water vapor have been used for a number of ARM research projects including planetary boundary layer (PBL) large eddy simulation, NWP validation, PBL height estimation, and for investigating the utility of driving SCM/CRM models continuously at the SGP site. New AERIplus retrieval meteorological

402

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Variability of Continental Liquid-Water Cloud and Its Parameterization Variability of Continental Liquid-Water Cloud and Its Parameterization Using ARM Data Kim, B.-G.(a), Klein, S.A.(b), and Norris, J.R.(c), Princeton University (a), GFDL (b), Scripps Institute of Oceanography (c) Cloud radiative properties are important in the determination of cloud-climate interactions. Additionally, the boundary layer cloud inhomogeneity has a primary influence in reducing the albedo relative to that computed using plane-parallel approximation. Variability in cloud properties at scales smaller than those resolved by large-scale motions may cause significant biases and therefore must parameterized. An attractive solution is to introduce the cloud statistical scheme that uses a probability distribution function (PDF) to represent its subgrid-scale

403

FCD Instrument Team | ORNL Neutron Sciences  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Four-Circle Diffractometer at HFIR The Four-Circle Diffractometer at HFIR HB-3A Four-Circle Diffractometer (HB-3A). The Four-Circle Diffractometer goniometer has a full χ circle with a 4.5-450 K closed-cycle helium refrigerator. The detector is 3He with a 7-anode array in a honeycomb pattern. Currently, only the center anode is used. The upper 2Θ limit is 155°. A multilayer-[110]-wafer silicon monochromator with the reflection from planes of the zone ensures sharp diffraction peaks in specified ranges of detector angles by control of the horizontal radius of curvature. Any plane from the zone can be set in Bragg position, but only the (331), (220) with (440), and (111) with (333) reflections are of practical interest. For the fixed monochromator angle of 48°, these reflections provide principal incident wavelengths of

404

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Association of the Cirrus Properties Over the Western Tropical Pacific The Association of the Cirrus Properties Over the Western Tropical Pacific with Tropical Deep Convection Deng, M.(a), Mace, G.G.(a), and Soden, B.J.(b), Univesity of Utah (a), Geophysical Fluid Dynamics Laboratory (b) The microphysical and radiative properties of upper tropospheric clouds in the tropics are known to have a substantial influence on climate. Observations from long term cloud radar measurements in the tropics show that upper tropospheric clouds are observed above 10 km as much as 40% of the time depending on location. By combining satellite observations with observations from the tropical ARM site on Nauru and Manus Islands we examine the macro and microphysical properties of these clouds in terms of their association with deep convection. The fundamental questions we will

405

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Testing the Monte Carlo Independent Column Approximation with the NCAR Testing the Monte Carlo Independent Column Approximation with the NCAR Community Atmospheric Model Raisanen, P.(a), Barker, H.W.(b), and Cole, J.N.S.(c), Dalhousie University (a), Meteorological Service of Canada (b), Pennsylvania State University (c) The Monte Carlo Independent Column Approximation (McICA) is a relatively new method for computing radiative heating profiles within global climate models (GCMs). The McICA method segregates descriptions of surface-atmosphere optical structure from the radiative transfer solver thus allowing, for example, the statistical structure of cloud to be of arbitrary complexity. While McICA's flux and heating rate estimates are unbiased with respect to the full ICA, they contain conditional random errors that are uncorrelated from one GCM column to another and from one

406

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The MERGED_SOUNDING VAP: A Status Report and Description The MERGED_SOUNDING VAP: A Status Report and Description Miller, M.A.(a), Troyan, D.T.(a), and Mace, G.G.(b), Brookhaven National Laboratory (a), University of Utah (b) The Value-added Product (VAP) known as MERGED_SOUNDING has been deemed a very desirous component of ARMs suite of VAPs. To have a thermodynamics profile of the atmosphere at one-minute temporal intervals and uniform height levels available for ARM data users eliminates much redundancy and inconsistency as investigators will now have standard atmospheric profiles at their disposal. The values which constitute the thermodynamics profile include: Temperature, Relative Humidity, Vapor Pressure, Barometric Pressure, Wind Speed and Direction, and Dewpoint. The data integrated to form the MERGED_SOUNDING data stream comes from radiosonde launches, model

407

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The Monte Carlo Approach for Light Scattering by Nonspherical Particles The Monte Carlo Approach for Light Scattering by Nonspherical Particles Evans, K.F., University of Colorado There is still no accurate method for computing light scattering by arbitrary shape particles of any size parameter. Scattering from particles with size parameters above roughly 50 may be calculated with ray tracing. Scattering for size parameters smaller than 10 to 20 may be computed with the discrete dipole approximation or the finite difference time domain method, though these methods are computationally very taxing for the larger size parameters. Scattering for the midrange of size parameters may be calculated with the T-matrix method for special shapes such as spheroids, cylinders, and even hexagonal columns with aspect ratios near unity, but

408

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Simulations of Mixed-Phase Altocumulus: An Evaluation of Remote Sensing Simulations of Mixed-Phase Altocumulus: An Evaluation of Remote Sensing Properties Versus Relative Ice/Water Content Sassen, K.(a) and Khvorostyanov, V.I.(b), University of Alaska Faibanks (a), Moscow Central Aerological Observatory (b) Mixed-phase clouds are acknowledged to be a harsh test of remote sensing data-based algorithms designed to derive microphysical and radiative properties. Yet, such clouds are globally ubiquitous. Using a 2-D cloud model with explicit microphysics and radiation, we evaluate the changes in mixed phase clouds caused by increasing ice content until glaciation occurs. The properties of the ice and water particle constituents are resolved independently, revealing the relative radiative contributions from the water phase source cloud versus the ice phase virga. Cloud contents are

409

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The March 2000 Cloud Intensive Observing Period; The Evolution of the The March 2000 Cloud Intensive Observing Period; The Evolution of the Synoptic-Scale Atmosphere and the Associated Cloud Radiative Forcing Mace, G.G.(a), Sonntag, K.L.(b), Kato, S.(c), Poellot, M.(d), Twohy, C.(e), Troth, S.(a), Zhang, Q.(a), and Minnis, P.(c), University of Utah (a), Unviersity of Oklahoma (b), NASA Langley Research Center (c), University of North Dakota (d), Oregon State University (e) During the first 3 weeks of March 2000, an intensive observing period (IOP) was held near the central facility of the Southern Great Plains ARM site. In conjunction with the ARESE II campaign, the objective of this IOP was to observe the 3-dimensional structure of the cloud field using multiple scanning and vertically pointing millimeter radars. In anticipation of

410

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Variability of Deep Convective Cloud Characteristics Across the TWP Regime Variability of Deep Convective Cloud Characteristics Across the TWP Regime Jensen, M.P.(a)(b), Del Genio, A.D.(b), Vogelmann, A.M.(c), Miller, M.A.(c), and Johnson, K.L.(c), Columbia University (a), NASA/GISS (b), Brookhaven National Laboratory (c) Deep convective clouds and their associated anvil clouds are the most obvious feature in satellite images of tropical latitudes due to their high albedo and low infrared brightness temperature.Despite the relative ease with which these cloud types are detected, the details of their radiative properties and how they are related to the hydrological and microphysical properties of the cloud system are not well understood. We present some preliminary analysis from the use of a combination of MODIS Cloud Products

411

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Understanding the Effects of Uncertainties in Ice Processes, Entrainment Understanding the Effects of Uncertainties in Ice Processes, Entrainment and Updraft Velocities on the Relationship Between Cloud Optical Depth and Liquid Water Path at the NSA and SGP Sites Chen, Y.(a), Penner, J.E.(a), and Dong, X.(b), University of Michigan (a), University of North Dakota (b) The relationship between the cloud optical depth (tc) and the cloud liquid water path (LWP) inferred from surface observations of shortwave radiative fluxes and measured LWP shows significant variability. Our previous study1 used a warm-cloud microphysics model to explain the average relationship between the cloud optical depth (tc) and the cloud liquid water path (LWP). Here, we examine some of the processes that contribute to the observed variability in this relationship. We examine the possible effects of

412

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Role of Subgrid Condensation in the Transition from Shallow to Deep Role of Subgrid Condensation in the Transition from Shallow to Deep Convection Xu, K.-M.(a) and Cheng, A.C.(b), NASA Langley Research Center (a), Hampton University (b) It is generally assumed that cloud-resolving models (CRMs) resolve the dynamics of clouds. It is also well known that condensation occurs at much finer spatial scales than those resolved by CRMs. How do CRMs treat the subgrid condensation? One is to drastically increase the resolution so that all condensation is resolved. The other is to parameterize the subgrid condensation with a statistical approach, as first proposed by Sommeria and Deardorff (1974). Unfortunately, most CRMs ignore the subgrid condensation all together. In this study, we propose to examine the role of subgrid condensation in the context of the transition from shallow convection to

413

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Spectral Composition and Quanta-to-Energy Ratio of Diffuse Spectral Composition and Quanta-to-Energy Ratio of Diffuse Photsynthetically Active Radiation under Diverse Sky Conditions Dye, D.G.(a) and Yasuoka, Y.(a,b), JAMSTEC-FRSGC (a), University of Tokyo (b) Data on the beam and diffuse components of photosynthetically active radiation (PAR, 400-700 nm) are often required for detailed process modeling of terrestrial photosynthesis and ecosystem-atmosphere carbon exchange. Such models typically require PAR data in quantum units (photosynthetic photon flux density) however PAR is often reported in energy units (irradiance). Reliable conversion of diffuse PAR data from energy to quantum units requires knowledge of how the quanta-to-energy ratio for diffuse PAR varies across a broad range of sky conditions that includes variations in cloudiness. This study employs a time-series of

414

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Shapes and Light Scattering Properties of Quasi-Spherical Ice Crystals Shapes and Light Scattering Properties of Quasi-Spherical Ice Crystals Nousiainen, T.P. and McFarquhar, G.M., University of Illinois The shapes and single-scattering properties of small, irregular, quasi-spherical ice crystals are studied using two-dimensional images measured by a Cloud Particle Imager in mid-latitude cirrus during the 2000 Cloud Intensive Operation Period conducted over the Atmospheric Radiation Measurement program's Southern Great Plains site. A statistical shape analysis of the ice crystal images is carried out to obtain size-dependent relative standard deviations of radius and correlation functions of logradius which together define the shape statistics of the sample ice crystals. The former describes the overall variation in the lengths of

415

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Observations and Stochastic Modeling of Shortwave Radiative Transfer at the Observations and Stochastic Modeling of Shortwave Radiative Transfer at the ARM CART Sites Secora, J.M. and Veron, D.E., Rutgers University Stochastic modeling has been shown to be a promising technique for representing shortwave radiative transfer through fractional cloud fields and may be a suitable approach for characterizing the impact of macroscale inhomogeneity of the cloud field on the radiation in an Atmospheric General Circulation Model (AGCM) environment. To ascertain the conditions under which the stochastic approach would be appropriate in an AGCM, several steps have been taken. Initially, we have analyzed both microphysical and geometrical cloud characteristics for one year at three Atmospheric Radiation Measurement (ARM) Program Cloud and Radiation Testbed (CART)

416

ARM - 2008 Science Team Meeting Pictures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Director (left), engages an ARM researcher during one of the poster sessions. Larry Berg, ARM scientist (left), listens to a visiting scientist from Niamey, Niger, who...

417

ARM - Selected Science Team Proposals - FY 2005  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Radiative Transfer for Cloudy Atmospheres in Global Climate Models" NEW-Dr. Larry Berg, Pacific Northwest National Laboratory: "Development, Evaluation, and Application of...

418

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radiation Measurement Southern Great Plains Site: Temporal and Spatial Variability Berg, L., Kassianov, E., Long, C., and Gustafson, W. A Comparison Between Principal...

419

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

PWV and CLW from ARM MicroWave Radiometers Clough, S.A.(a), Clothiaux, E.E.(b), Cady-Pereira, K.(a), Boukabara,S.(a), Liljegren, J.C.(c), and Turner,D.D.(d), Atmospheric &...

420

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

S.A.(a), Shephard, M.W.(a), Mlawer, E.J.(a), Delamere, J.S.(a), Iacono, M.J.(a), Cady-Pereira, K.(a), Boukabara, S.(a), Revercomb, H.E.(b), Tobin, D.C.(b), Turner, D.D.(c), and...

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Using HIRS Radiances Delamere, J.S. (a), Iacono, M.J. (a), Mlawer, E.J. (a), Cady-Pereira, K. (a), Clough, S.A. (a), Stamnes, K. (b), and Bates, J.J. (c), Atmospheric and...

422

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for the model input and analysis of atmospheric thermodynamic status, and (4) using the reference sonde system as a platform for other sensors, such as chemical trace sensors...

423

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

estimates of horizontal advection terms, the parameterizations within the SCM produce time-dependent fields which can be compared directly with measurements. Within the...

424

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

solar zenith angle (SZA) is greater than 80, inverts the cloud physical parameters that produce the minimum difference between observed and modeled brightness temperature...

425

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

by deep convection, were observed about 30 percent of the time by the cloud radar. To produce cirrus statistics from the SCM results that are comparable to the cloud radar...

426

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the types of clouds included in the datasets. Because the adiabatic process continues to produce cloud ice mass at still colder temperatures in the upper troposphere, no minimum...

427

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Maintaining careful instrument calibrations traceable to an international standard is the first step in establishing research quality solar irradiance measurement capabilities. All...

428

ARM - Publications: Science Team Meeting Documents: Measuring...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

region with a wavelength dependent resolution from 1 to 33 nm. SIM is providing the first-ever continuous record of solar variability throughout the visible and near infrared...

429

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

NASAGSFC Scanning Raman Lidar Measurements of Water Vapor and Cirrus Clouds During WVIOP2000 and AFWEX Whiteman, D.N.(a), Evans, K.D.(b), Di Girolamo, P.(c), Demoz, B.B.(b),...

430

ARM - Publications: Science Team Meeting Documents: Response...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

impacts simulations of broadband radiative transfer and climate. The NCAR Community Atmospheric Model (CAM) version 3 is used to assess the impact of neglecting correlations...

431

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Parcel Model Comparison Project Phase 1 Lin, R.-F. (a), Starr, D. (b), DeMott, P. (c), Cotton, R. (d), Sassen, K. (e), and Jensen, E. (f), University of Maryland - Baltimore County...

432

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

algorithms, which are now being applied to ARM data and will be applied to NASA A-Train satellite data, vary in complexity from simple regression equations to more complex...

433

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Interferometer Sounder for M-PACE* The Future AERI New Deployments, System Upgrades, and Rapid Sampling Operations* Bianco, L. Improved Humidity Profiling by Combination of...

434

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARM Mobile Facility - Overview and Status Miller, M.A.(a), Widener, K.B.(b), and Jones, L.(c), Brookhaven National Laboratory(a) Pacific Northwest National Laboratory (b), Los...

435

ARM - 1999 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for Space Studies Stephen Klein - NOAA Geophysical Fluid Dynamics Laboratory Jim Hack - National Center for Atmospheric Research Stephen Lord - National Center for...

436

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Period Case on 6 March 1991 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z H Hack, J.J. A Hierarchical Approach to Improved Cloud Radiation Parameterization for Climate...

437

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Ames Research Center (d), State University of New York, Albany (e), Tohoku University, Japan (f), Colorado State University (g), Sandia National Laboratories (h) Eleventh...

438

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

The ARM Shipboard Oceanographic and Atmospheric Radiation (SOAR) Program: A Review of Instrumentation and Results to Date Reynolds, R.M. (a), MIller, M.A. (a), Bartholomew, M.J....

439

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the Intercontinental Transport, Aging, and Removal of a Boreal Fire Smoke Plume Over Oklahoma Ghan, S.(a), Chapman, E.(a), Easter, R.(a), Reid, J.(b), and Justice, C.(c), Pacific...

440

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Vertical Distribution of Cloud Condensation Nuclei at the Oklahoma CART Site Hudson, J.G., and Xie, Y., Desert Research Institute, University of Nevada Eighth Atmospheric Radiation...

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441

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Rotating Shadow Arm for Broadband Hemispheric Radiometers: Instrument Design and Concept Verification Using Atmospheric Radiation Measurement Southern Great Plains Radiometer...

442

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dominant greenhouse gas and provides the largest known feedback mechanism for amplifying global warming. As the concentrations of other greenhouse gases increase due to...

443

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of such information as optical thickness and effective particle size by satellite sensors is made separately. That is, aerosols are only examined in presumed clear sky...

444

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

on the Arctic Coast while Atqasuk is about 100 km inland (south) in the approximately midway between the Brooks Range and the coastline. We have evaluated how well the re-analysis...

445

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Aerosols Penner, J.E. (a), Zhang, S.Y. (a), and Chuang, C.C. (b), University of Michigan (a), Lawrence Livermore National Laboratory (b) Eleventh Atmospheric Radiation...

446

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

participate in the ARM Mixed-Phase Arctic Cloud Experiment in the Fall of 2004. From the UAV platform, the S-HIS measures the up and downwelling infrared radiance at high spectral...

447

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Use of the UAV O2 A-Band Spectrometer in Estimating Cirrus Cloud Properties Gabriel, P.M., Stephens, G.L., and Labonnote, L., Colorado State University This poster presents some...

448

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Solar Spectral and Broadband Infrared Radiative Flux During the Fall 2002 UAV Experiment Pilewskie, P.(a), Gore, W.(a), McCoy, R.F.(b), Tooman, T.T.(b), Bolton,...

449

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Climate System Model (ARCSyM) was run for the SHEBA year as part of the Arctic Regional Climate Model Intercomparison Project (ARCMIP). Model output from this run are analyzed to...

450

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Communications Upgrade for SGP Extended Facilities Smith, J. (a), Reed, R. (a), Eagan, R. (b), and Ermold, B. (c), Aeromet Inc. (a), Argonne National Laboratory (b), Pacific...

451

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Climatology of Stratus Clouds at the SGP: A Radiation Based Study Sengupta, M.(a), Ackerman, T.P.(a), and Clothiaux, E.E.(b), Pacific Northwest National Laboratory (a), The...

452

ARM - Publications: Science Team Meeting Documents: Atmospheric...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

layer is sensitive to the boundary layer scheme. Furthermore, little is known on the climatology of drizzling or precipitating boundary layer clouds, their seasonal variability and...

453

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Meeting We apply data obtained from the FIRE's (First International Satellite Cloud Climatology Project ISCCP Regional Experiment's) Atlantic Stratocumulus Transition Experiment...

454

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

particularly difficult to differentiate between aerosol extinction and the absorption of nitrogen dioxide in the 415 nm channel. The rotating shadowband spectroradiometer (RSS),...

455

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for different wavelength combinations, the inclusion of gas absorbers such as ozone and nitrogen dioxide in the retrieval, and the assumption of either single-mode or bimodal...

456

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

TriggeringCapping Inversions in the Southern Great Plains Cripe, D.G. (a) and Randall, D.A. (b), Colorado State University Eleventh Atmospheric Radiation Measurement (ARM)...

457

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Radiative Transfer Raisanen, P.(a), Barker, H.W.(a), Khairoutdinov, M.F.(b), and Randall, D.A.(b), Meteorological Service of Canada (a), Colorado State University (b)...

458

ARM - Publications: Science Team Meeting Documents: Radiative...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Finnish Meteoroligical Institute Clothiaux, Eugene The Pennsylvania State University Randall, David Colorado State University Khairoutdinov, Marat Colorado State University...

459

ARM - Publications: Science Team Meeting Documents: Interactions...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Howard Meteorological Service of Canada Khairoutdinov, Marat Colorado State University Randall, David Colorado State University Clothiaux, Eugene The Pennsylvania State University...

460

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Modelling Framework Cole, J.N.S.(a), Barker, H.W.(b), Khairoutdinov, M.F.(c), and Randall, D.A.(c), The Pennsylvania State University (a), Meteorological Service of Canada...

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While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
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to obtain the most current and comprehensive results.


461

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a Super-Parametrized GCM Barker, H.W.(a), Cole, J.N.S.(b), Khairoutdinov, M.F.(c), and Randall, D.A.(c), Meteorological Service of Canada (a), The Pennsylvania State University...

462

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Simulations of Summertime Midlatitude Convection Xu, K.-M.(a), Krueger, S.K.(b), Randall, D.A.(c), Cederwall, R.T.(d), Xie, S.C.(d), and Yio, J.J.(d), NASA Langley (a),...

463

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cole, J.N.S.(a), Barker, H.W.(b), Khairoutdinov, M.F.(c), Clothiaux, E.E.(a), and Randall,D.A.(c), The Pennsylvania State University(a), Meteorological Service of Canada (b),...

464

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Deep Convection During the ARM Summer 1997 IOP: CRM Study Khairoutdinov, M.F. and Randall, D.A., Colorado State University Twelfth Atmospheric Radiation Measurement (ARM)...

465

ARM - Selected Science Team Proposals - FY 1994  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

a Climate GCM" Dr. Jean-Francois Louis, AER, Inc.: "Variational Single Column Data Assimilation for ARM" Dr. Robert McIntosh, University of Mass.: "The Use of a Ground-Based...

466

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cloud Resolving Data Assimilation Vukicevic, T.(a), Sengupta, M.(b), Evans, F.(c), and Vonder Haar, T.(d), CIRACSU (a), CIRACSU (b), PAOSCU Boulder (c), CIRACSU (d) Fourteenth...

467

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

leads to a power-law transport kernel for the integral multiple-scattering equation which leads to bulk photon transport by anomalous diffusion which in turn nicely...

468

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

2000 ARM Cloud IOP Dong, X.(a), Minnis, P.(b), Mace, G.G.(c), Smith, W.L., Jr.(b), Marchand, R.T.(d), and Rapp, A.D.(e), University of North Dakota (a), NASA Langley Research...

469

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radar Observations of Cloud Occurrence and Large-Scale Atmospheric Fields* Marchand, R., Beagley, N., and Ackerman, T. A Climatology of Clouds and Radiative Forcing*...

470

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

ARM Sites and the CRYSTAL Field Experiment Laribee-Dowd, K. (a), Mace, G. G. (a), and Marchand, R.T. (b), University of Utah (a) Pacific Northwest National Laboratory (b)...

471

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

A Three-Year Cloud Climatology for the Southern Great Plains Site Marchand, R.T. (a), Ackerman, T.P. (a), and Clothiaux, E.E. (b), Pacific Northwest National Laboratory (a),...

472

ARM - Selected Science Team Applications - FY 2009  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Brian Mapes, University of Miami: "Parameterizing Convective Organization" Dr. Roger Marchand: "Atmospheric Classification for the Analysis of ARM Observations and Global Climate...

473

ARM - 2005 ARM Science Team Meeting  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Stratiform Clouds Variability Based on Millimeter-Wave Radar Data 2:30 p.m. Roger Marchand: A Bootstrap Technique for Testing the Relationship Between Local-Scale Radar...

474

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

G.G.(b), Ackerman, T.P.(a), Comstock, J.M.(a), Flynn, C.J.(a), Widener, K.B.(a), and Marchand, R.T.(a), Pacific Northwest National Laboratory (a), University of Utah (b) Twelfth...

475

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

An Assessment of MWR Retrievals of Liquid Water Path Using Clear-sky Data Marchand, R.T. and Ackerman, T.P., Pacific Northwest National Laboratory Twelfth Atmospheric Radiation...

476

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Y.A. Pkhalagov A Two-Year Cloud Climatology for the Southern Great Plains Site R.T. Marchand, T.P. Ackerman, and E.E. Clothiaux AERI + GOES Retrievals at the SGP ARM Site: SCM...

477

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

feedback of cirrus clouds on the Earths climate. We use a unique, year-long dataset of water vapor mixing ratio inferred from ground-based Raman lidar measurements at...

478

ARM - Publications: Science Team Meeting Documents: Interpretation...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

University of New York at Stony Brook The CERESTRMM single satellite footprint (SSF) dataset, available for January 1998 to August 1998, provides not only radiometric data, but...

479

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Test of GCM Cloud Parameterization in the Arctic Region Using SHEBA Integrated Dataset Yuan, J.(a), Fu, Q.(a), and McFarlane, N.(b), University of Washington (a), Canadian Centre...

480

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Evaluation of Broadband Surface Flux Closure Under Cloudy Skies at Nauru McFarlane, S.A. and Evans, K.F., University of Colorado Twelfth Atmospheric Radiation Measurement (ARM)...

Note: This page contains sample records for the topic "asr science team" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


481

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Application and Evaluation of Accelerated Radiative Transfer Schemes in General Circulation Models Gabriel, P., Stephens, G.L., and Partain, P.T., Colorado State University Ninth...

482

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

B. Cairns, M.D. Alexandrov, A.A. Lacis, and B.E. Carlson Daytime Overlapping Cloud Detection in MODIS Data B.A. Baum, S.L. Nasiri, and P. Yang Determination of Nitrogen...

483

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

mounted on a stabilized platform capable of leveling to 0.02 degrees when the vehicle pitch and roll are within five degrees of level. The improved data quality and time savings...

484

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

taken here is to derive four separate forcing data sets from a number of different Numerical Weather Prediction (NWP) data sets. The poster illustrates the process of...

485

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

3) Characterize the measurements in terms of other parameters derived from other sensors (e. g., column water content, aerosol optical depth). 4) Promote the development...

486

ARM - Publications: Science Team Meeting Documents: Autonomous...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Autonomous Retrieval of Cloud and Aerosol Properties from ARM Micropulse Lidar Flynn, Connor Pacific Northwest National Laboratory Christy, Jason Columbia University Beus, Sherman...

487

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

D.P.J., Bosveld, F., van der Marcel, H., ten Brink, H., Herben, M., de Leeuw, G., Stricker, H., and Rastburg-Arbresser, B. Cabauw Experimental Site for Atmospheric Research: An...

488

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

United States and profiles from other sources including the European Centre for Mid-range Weather Forecasting (ECMWF), National Center for Environmental Prediction (NCEP), and...

489

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Radar and Microwave Radiometer Data from the Southern Great Plains (SGP) Multi-Angle Satellite Retrieval of Cumulus Thickness at the ARM TWP Site: Validation Tests Stochastic...

490

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

An Evaluation of Slant Water Vapor From Using a High Resolution Numerical Weather Model Braun, J., Ha, S.Y., Rocken, C., and Kuo, Y.H., UCARCOSMIC Fourteenth Atmospheric Radiation...

491

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

SGP and upper tropospheric humidity (UTH) from Geostationary Operational Environmental Satellite (GOES)-8 (Soden's algorithm) indicated that the European Centre for Medium Range...

492

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Kumar, A.(a), Minnett, P.J.(a), and Gentemann, C.L.(b), RSMAS, University of Miami (a), Remote Sensing Systems (b) Sea Surface Temperature (SST) over the Tropical Western Pacific...

493

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Cloud Cover and Phase During Arctic Winter from DABul Lidar Guest, P. Preliminary Surface Heat Budget Results from SHEBA Guo, Y.-R. Assimilation of ARM WVIOP-96 Data with the...

494

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AVHRR Satellite Imagery for the Tropical Western Pacific and North Slope of AlaskaAdjacent Arctic Ocean Sites Minnett, P.J., and Kumar, A., University of Miami, Rosenstiel School...

495

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

the snow surface temperature was observed. The temperature was rising by several degrees during few minutes, which can be considered a direct manifestation of the greenhouse effect...

496

ARM - Publications: Science Team Meeting Documents: Improved...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

imagery over the ARM NSA area using VISST, SIST and, in addition, Solar-infrared Infrared Near-infrared Technique (SINT). VISST and SINT utilize visible (0.65m) and near-infrared...

497

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

CLARA-Project: Intensive Experimental Study of Clouds and Radiation in The Netherlands Russchenberg, H.W.J., Delft University of Technology; van Lammeren, A.C.A.P., and Feijt, A.,...

498

ARM - Publications: Science Team Meeting Documents  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Development Li,Z.(a), Cribb, M.(a), and Trishchenko, A.P.(b), University of Maryland (a), Canada Centre for Remote Sensing (b) Twelfth Atmospheric Radiation Measurement (ARM)...

499

ARM - Selected Science Team Proposals - FY 1997  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

"Analysis of Cloud Radiative Forcing and Feedbacking a Climate GCM" Dr. Zhanqing Li, Canada Centre for Remote Sensing: "Remote Sensing and Understanding the Role of Cloud and...

500

ARM - Selected Science Team Proposals - FY 2000  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

"Parameterization of Clouds and Convection in the NCEP Global Model" Dr. Zhanqing Li, Canada Centre for Remote Sensing: "Remote Sensing and Understanding the Role of Cloud and...