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Note: This page contains sample records for the topic "observing system eos" 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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1

Integrating ground-based EO data in satellite-based systems  

SciTech Connect

Earth observation (EO) and other forms of geo-referenced data are typically thought of as being ``satellite data.`` It is true that the majority of EO data are satellite oriented; thus, most on-line EO data systems are designed primarily for satellite image data. However, there is A small but significant minority of EO data that is not satellite image data; i.e., it is ground-based or terrestrial data Unfortunately, many on-line systems designed for satellite data do not take into account the somewhat different nature of associated ground-based data, Data queries that work most of the time but fail because the system has not taken into account less common data are not robust enough for today`s users. In order to avoid embarrassing problems, EO system designers must be aware of the nature of ground- based data. In this paper we describe some of our insights on this subject in the hope that the designers of other systems may learn from our experience.

Jennings, S.V.; Daugherty, P.; Yow, T.G.

1997-02-01T23:59:59.000Z

2

ORNL DAAC Announces Mercury EOS  

NLE Websites -- All DOE Office Websites (Extended Search)

Announces Mercury EOS Search and Order April 21, 2003: Mercury EOS, the ORNL DAAC's new search and order system that works with NASA's EOS ClearingHouse (ECHO), is now operational....

3

EOS Land Validation Project  

NLE Websites -- All DOE Office Websites (Extended Search)

EOS Land Validation The EOS Land Validation Project Overview EOS Land Validation Logo The objective of the EOS Land Validation Project is to achieve consistency, completeness,...

4

EOS standards  

SciTech Connect

An approach to creating accurate EOS for pressure standards is described. Applications to Cu, Au, and Ta are shown. Extension of the method to high compressions using DFT is illustrated. Comparisons with modern functionals show promise.

Greeff, Carl W [Los Alamos National Laboratory

2011-01-12T23:59:59.000Z

5

EOS Terra Aerosol and Radiative Flux Validation: An Overview of the Chesapeake Lighthouse and Aircraft Measurements for Satellites (CLAMS) Experiment  

Science Conference Proceedings (OSTI)

NASA developed an Earth Observing System (EOS) to study global change and reduce uncertainties associated with aerosols and other key parameters controlling climate. The first EOS satellite, Terra, was launched in December 1999. The Chesapeake ...

W. L. Smith Jr.; T. P. Charlock; R. Kahn; J. V. Martins; L. A. Remer; P. V. Hobbs; J. Redemann; C. K. Rutledge

2005-04-01T23:59:59.000Z

6

3AK RIDGE NATIONAL LABORATORY OPERAiEO BY MARTIN MARIE,TA ENERGY SYSTEMS, INC.  

Office of Legacy Management (LM)

.I Y. ,J,.- i .I Y. ,J,.- i - 3AK RIDGE NATIONAL LABORATORY OPERAiEO BY MARTIN MARIE,TA ENERGY SYSTEMS, INC. POST OFFICE BOX X OAK RIOGE. TENNESSEE 37631 July 20, 1984 Ms. Gale P. Turi Division of Remedial Action Projects Office of Nuclear Energy U.S. Department of Energy MS - NE24 Washington, D.C. 20545 Dear Ms. Turi: Radfoloafcal Survey of the Guterl Steel Fad1 ftya 1 o&a As requested, a visit was made to the Guterl Steel facility (formerly Simonds Saw and Steel) on July 9, 1984 to determine if there have been significant changes in the radiological status of the facility since the last survey. In general, measurements made during this survey are con- sistent with those made during the 1977 survey (ORNL) and a follow-up survey in 1981 (FBD). Significant amounts of contaminated material are present in the rolling

7

Bidirectional Reflectance Round-Robin in Support of the Earth Observing System Program  

Science Conference Proceedings (OSTI)

Laboratory measurements of the bidirectional reflectance distribution function (BRDF) of diffuse reflectors are required to support calibration in the Earth Observing System (EOS) program of the National Aeronautics and Space Administration. To ...

E. A. Early; P. Y. Barnes; B. C. Johnson; J. J. Butler; C. J. Bruegge; S. F. Biggar; P. R. Spyak; M. M. Pavlov

2000-08-01T23:59:59.000Z

8

Eos Climate | Open Energy Information  

Open Energy Info (EERE)

Eos Climate Jump to: navigation, search Name Eos Climate Place South San Francisco, California Zip 94080 Product California-based firm focused on developing climate change...

9

EOS Land Validation Presentations  

NLE Websites -- All DOE Office Websites (Extended Search)

EOS Land Validation Presentations EOS Land Validation Presentations Meeting: Land Cover Validation Workshop Date: February 2, 2004 Place: Boston, MA Title: Validation Data Support Activities at the ORNL DAAC (Power Point) Presenter: Bob Cook Meeting: Fall 2003 American Geophysical Union (AGU) Meeting Date: December 9, 2003 Place: San Francisco, CA Title: Ground-Based Data Supporting the Validation of MODIS Land Products (Power Point) Presenter: Larry Voorhees Meeting: Terra and Aqua Products Review Date: March 2003 Place: NASA HQ Title: Supporting the Validation of MODIS Land Products (Power Point) Presenter: Larry Voorhees Meeting: Terra and Aqua Products Review Date: March 2003 Place: NASA HQ Title: MODIS Land Summary (Power Point) Presenter: Chris Justice, University of Maryland Meeting: Spring 2002 American Geophysical Union (AGU) Meeting

10

Design and Implementation of a Prototype Data System for Earth Radiation Budget, Cloud, Aerosol, and Chemistry Data  

Science Conference Proceedings (OSTI)

The Earth Observing System (EOS) will collect data from a large number of satellite-borne instruments, beginning later in this decade. To make data accessible to the scientific community, NASA will build an EOS Data and Information System (EOSDIS)...

Bryan A. Baum; Bruce R. Barkstrom

1993-04-01T23:59:59.000Z

11

EOS Validation Data Archival Policy  

NLE Websites -- All DOE Office Websites (Extended Search)

FIFE Follow-On LBA (Amazon) NACP (North America) OTTER (Oregon) SAFARI 2000 (S.Africa) SNF (Minnesota) Validation BIGFOOT Canopy Chemistry (ACCP) EOS Land Validation...

12

ARM - Mobile Aerosol Observing System  

NLE Websites -- All DOE Office Websites (Extended Search)

FacilitiesMobile Aerosol Observing System FacilitiesMobile Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Mobile Aerosol Observing System Intensive aerosol observations conducted on the campus of Brookhaven National Laboratory on Long Island, New York, using the ARM Mobile Aerosol Observing System. Intensive aerosol observations conducted on the campus of Brookhaven

13

ARM - Surface Aerosol Observing System  

NLE Websites -- All DOE Office Websites (Extended Search)

FacilitiesSurface Aerosol Observing System FacilitiesSurface Aerosol Observing System AMF Information Science Architecture Baseline Instruments AMF1 AMF2 AMF3 Data Operations AMF Fact Sheet Images Contacts AMF Deployments Hyytiälä, Finland, 2014 Manacapuru, Brazil, 2014 Oliktok Point, Alaska, 2013 Los Angeles, California, to Honolulu, Hawaii, 2012 Cape Cod, Massachusetts, 2012 Gan Island, Maldives, 2011 Ganges Valley, India, 2011 Steamboat Springs, Colorado, 2010 Graciosa Island, Azores, 2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 Surface Aerosol Observing System The ARM Mobile Facility (AMF) is equipped to quantify the interaction between clouds and aerosol particles. A counter-flow virtual impactor (CVI) is used to selectively sample cloud drops. The CVI takes advantage of the

14

Aerosol Observing System (AOS) Handbook  

Science Conference Proceedings (OSTI)

The Aerosol Observing System (AOS) is a suite of in situ surface measurements of aerosol optical and cloud-forming properties. The instruments measure aerosol properties that influence the earths radiative balance. The primary optical measurements are those of the aerosol scattering and absorption coefficients as a function of particle size and radiation wavelength and cloud condensation nuclei (CCN) measurements as a function of percent supersaturation. Additional measurements include those of the particle number concentration and scattering hygroscopic growth. Aerosol optical measurements are useful for calculating parameters used in radiative forcing calculations such as the aerosol single-scattering albedo, asymmetry parameter, mass scattering efficiency, and hygroscopic growth. CCN measurements are important in cloud microphysical models to predict droplet formation.

Jefferson, A

2011-01-17T23:59:59.000Z

15

Eos Energia | Open Energy Information  

Open Energy Info (EERE)

Eos Energia Eos Energia Place Bologna, Italy Zip 40133 Sector Solar Product Italy-based solar project design and construction company. Coordinates 44.50483°, 11.345169° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":44.50483,"lon":11.345169,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

16

Radiometric Performance of the CERES Earth Radiation Budget Climate Record Sensors on the EOS Aqua and Terra Spacecraft through April 2007  

Science Conference Proceedings (OSTI)

The Clouds and the Earths Radiant Energy System (CERES) flight models 1 through 4 instruments were launched aboard NASAs Earth Observing System (EOS) Terra and Aqua spacecraft into 705-km sun-synchronous orbits with 10:30 p.m. and 1:30 a.m. ...

Kory J. Priestley; G. Louis Smith; Susan Thomas; Denise Cooper; Robert B. Lee III; Dale Walikainen; Phillip Hess; Z. Peter Szewczyk; Robert Wilson

2011-01-01T23:59:59.000Z

17

An Ocean Observing System for Climate  

Science Conference Proceedings (OSTI)

Designs and implementation are proceeding for a Global Ocean Observing System (GOOS) and a Global Climate Observing System (GCOS). The initial design for the ocean component of the GCOS, which is also the climate module of the GOOS, was completed ...

Worth D. Nowlin Jr.; Neville Smith; George Needler; Peter K. Taylor; Robert Weller; Ray Schmitt; Liliane Merlivat; Alain Vzina; Arthur Alexiou; Michael McPhaden; Massaaki Wakatsuchi

1996-10-01T23:59:59.000Z

18

EO 13287: Preserve America | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

87: Preserve America EO 13287: Preserve America . It is the policy of the Federal Government to provide leadership in preserving America's heritage by actively advancing the...

19

Partonic EoS in High-Energy Nuclear Collisions at RHIC  

E-Print Network (OSTI)

Partonic EoS in High-Energy Nuclear Collisions at RHIC Nu Xuproperties. In high-energy nuclear collisions, the term ?owthe early stage of high-energy nuclear collision, both the

Xu, Nu

2006-01-01T23:59:59.000Z

20

Rail gun development for EOS research  

SciTech Connect

The status of a railgun program for EOS research in progress at Los Alamos and Livermore National Laboratories is described. The operating principle of rail guns, the power supplies used to drive them, diagnostic techniques used to monitor their performance and initial efforts to develop projectiles suitable for EOS research are discussed. (WHK)

Fowler, C.M.; Peterson, D.R.; Hawke, R.S.; Brooks, A.L.

1981-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

GNSS radio occultation constellation observing system experiments  

Science Conference Proceedings (OSTI)

Observing system experiments within the operational ECMWF data assimilation framework have been performed for summer 2008 when the largest recorded number of GNSS radio occultation observations from both operational and experimental satellites ...

Peter Bauer; Gbor Radnti; Sean Healy; Carla Cardinali

22

Automated Surface Observing System: Standby Power Options  

NLE Websites -- All DOE Office Websites (Extended Search)

Automated Automated Surface Observing System Standby Options Power Automated Surface Observing System (ASOS) General System Description * Self contained group of sensors and data gathering equipment that produces an automated weather observation * Weather observations support aviation, climate data, non government weather operations, public consumption, etc. * Initial deployment began in 1991 and continued through 1997 * Located at 884 sites nationwide, normally at airports * System has two distinct subsystems: Field installed equipment (DCP & Sensor Group) and an indoor processor (ACU) with peripherals * Separate facility power for DCP & Sensors and ACU 1 * measure and collect data * Located on the airport * back up group for 10 minutes * Currently pl

23

Controlled Unclassified Information and E.O. 13556 | Department...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Controlled Unclassified Information and E.O. 13556 Controlled Unclassified Information and E.O. 13556 When you hear the term Controlled Unclassified Information (CUI), it could...

24

GEO Secretariat Global Earth Observing System of  

E-Print Network (OSTI)

Secretariat Vegetation greenness profiles North America Vegetation Annual Greenness Profiles 100 120 140 160;© GEO Secretariat GEO 2009-11 Work Plan ­ Related Task DA-09-05: Global Carbon Observation and Analysis System Implement a global carbon observation and analysis system addressing the three components

25

Validation Study of the MOPITT Retrieval Algorithm: Carbon Monoxide Retrieval from IMG Observations during WINCE  

Science Conference Proceedings (OSTI)

The Measurement of Pollution in the Troposphere (MOPITT) instrument is an eight-channel gas correlation radiometer selected for the Earth Observing System (EOS) Terra spacecraft launched in December 1999. Algorithms for the retrieval of ...

Jinxue Wang; John C. Gille; Henry E. Revercomb; Von P. Walden

2000-10-01T23:59:59.000Z

26

BNL | Mobile Aerosol Observing System (MAOS)  

NLE Websites -- All DOE Office Websites (Extended Search)

Mobile Aerosol Observing System (MAOS) Mobile Aerosol Observing System (MAOS) The Mobile Aerosol Observing System (MAOS) is a platform and instrument suite for Intensive Operation Periods (IOPs) to conduct in situ measurements of aerosols and their precursors. MAOS is part of the ARM Climate Research Facility. Physically MAOS is contained in two 20' SeaTainers custom adapted to provide a sheltered laboratory environment for operators and instruments even under harsh conditions. The two structures are designated MAOS-A and MAOS-C for Aerosol and Chemistry respectively. Although independent, with separate data systems, inlets and power distribution, the two structures are normally a single operating unit. The two enclosures comprising MAOS are designed for rapid deployment. All components (except for the Radar Wind Profiler) are transported internally

27

Concept of actuation and control for the EO smart connecting car (EO scc)  

Science Conference Proceedings (OSTI)

This paper describes the mechanical structure, electrical layout and control concept of the four-wheeled electric vehicle EO smart connecting car (EO scc). This car is able to change its shape, a feature provided by a foldable chassis, which also allows ... Keywords: car docking, drive by-wire, extended maneuverability, modular electric car, morphology, road train, wheel hub motor

Michael Jahn; Martin Schrer; Yong-Ho Yoo; Mehmed Yksel; Frank Kirchner

2012-10-01T23:59:59.000Z

28

The web-PLOP observation prioritisation system  

E-Print Network (OSTI)

We present a description of the automated system used by RoboNet to prioritise follow up observations of microlensing events to search for planets. The system keeps an up-to-date record of all public data from OGLE and MOA together with any existing RoboNet data and produces new PSPL fits whenever new data arrives. It then uses these fits to predict the current or future magnitudes of events, and selects those to observe which will maximise the probability of detecting planets for a given telescope and observing time. The system drives the RoboNet telescopes automatically based on these priorities, but it is also designed to be used interactively by human observers. The prioritisation options, such as telescope/instrument parameters, observing conditions and available time can all be controlled via a web-form, and the output target list can also be customised and sorted to show the parameters that the user desires. The interactive interface is available at http://www.artemis-uk.org/web-PLOP/

Colin Snodgrass; Yiannis Tsapras; Rachel Street; Daniel Bramich; Keith Horne; Martin Dominik; Alasdair Allan

2008-05-14T23:59:59.000Z

29

An Artificial Neural Network model to reduce false alarms in satellite precipitation products using MODIS and CloudSat observations  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectro-radiometer (MODIS) instrument aboard the NASA Earth Observing System (EOS) Aqua and Terra platform with 36 spectral bands provides valuable information about cloud microphysical characteristics and therefore ...

Nasrin Nasrollahi; Kuolin Hsu; Soroosh Sorooshian

30

Nuclear constraints on the EoS and rotating neutron stars  

E-Print Network (OSTI)

In this contribution nuclear constraints on the equation of state for a neutron star are discussed. A combined fit to nuclear masses and charge radii leads to improved values for the symmetry energy and its derivative at nuclear saturation density, $S_{\\rm{v}}= 31$ MeV and $L=68\\pm 8$ MeV. As an application the sensitivity of some properties of rotating supramassive neutron stars on the EoS is discussed.

Dieperink, A E L

2014-01-01T23:59:59.000Z

31

Common Cyber Security Vulnerabilities Observed in Control System...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Common Cyber Security Vulnerabilities Observed in Control System Assessments by the INL NSTB Program Common Cyber Security Vulnerabilities Observed in Control System Assessments by...

32

Evaluating the Design of an Earth Radiation Budget Instrument with System Simulations. Part I: Instantaneous Estimates  

Science Conference Proceedings (OSTI)

A set of system simulations has been performed to evaluate candidate scanner designs for an Earth Radiation Budget Instrument (ERBI) for the Earth Observing System (EOS) of the late 1990s. Five different instruments are considered: 1) the Active ...

Larry Stowe; Philip Ardanuy; Richard Hucek; Peter Abel; Herbert Jacobowitz

1993-12-01T23:59:59.000Z

33

The EO-1 Autonomous Science Agent  

Science Conference Proceedings (OSTI)

An Autonomous Science Agent is currently flying onboard the Earth Observing One Spacecraft. This software enables the spacecraft to autonomously detect and respond to science events occurring on the Earth. The package includes software systems that perform ...

Steve Chien; Rob Sherwood; Daniel Tran; Benjamin Cichy; Gregg Rabideau; Rebecca Castano; Ashley Davies; Rachel Lee; Dan Mandl; Stuart Frye; Bruce Trout; Jerry Hengemihle; Jeff D'Agostino; Seth Shulman; Stephen Ungar; Thomas Brakke; Darrell Boyer; Jim Van Gaasbeck; Ronald Greeley; Thomas Doggett; Victor Baker; James Dohm; Felipe Ip

2004-07-01T23:59:59.000Z

34

Eos, Vol. 89, No. 20, 13 May 2008 Fiber-optic distributed temperature sens-  

E-Print Network (OSTI)

Eos, Vol. 89, No. 20, 13 May 2008 Fiber-optic distributed temperature sens- ing (DTS) is emerging instillations allow for the precise observation of temperature at each meter of fiber-optic cables, with a precision of up to 0.01ºC. The temperature is computed from the light backscattered following an intense

Dever, Edward P.

35

Assessment of the Impact of Observations on Analyses Derived from Observing System Experiments  

Science Conference Proceedings (OSTI)

Observing system experiments (OSEs) are commonly used to quantify the impact of different observation types on forecasts produced by a specific numerical weather prediction system. Recently, methods based on degree of freedom for signal (DFS) have ...

Cristina Lupu; Pierre Gauthier; Stphane Laroche

2012-01-01T23:59:59.000Z

36

EO 13123 Renewable Power/REC Procurement Guidance - FINAL  

NLE Websites -- All DOE Office Websites (Extended Search)

EO 13123 Renewable PowerREC Procurement Guidance FINAL 3 rd Party Verification - See separate Guidance. Renewable Purchase Requirement Flexibility: Federal agencies are encouraged...

37

EO 13211: Regulations That Significantly Affect Energy Supply...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

211: Regulations That Significantly Affect Energy Supply, Distribution, or Use EO 13211: Regulations That Significantly Affect Energy Supply, Distribution, or Use I am requiring...

38

EO 13123-Greening the Government Through Efficient Energy Management...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

123-Greening the Government Through Efficient Energy Management EO 13123-Greening the Government Through Efficient Energy Management This order directs the Federal Government to...

39

AMBROSia: An Autonomous Model-Based Reactive Observing System  

Science Conference Proceedings (OSTI)

Observing systems facilitate scientific studies by instrumenting the real world and collecting corresponding measurements, with the aim of detecting and tracking phenomena of interest. Our AMBROSia project focuses on a class of observing systems which ...

David Caron; Abhimanyu Das; Amit Dhariwal; Leana Golubchik; Ramesh Govindan; David Kempe; Carl Oberg; Abhishek Sharma; Beth Stauffer; Gaurav Sukhatme; Bin Zhang

2007-05-01T23:59:59.000Z

40

Recursive controllability and observability tests for large dynamic systems  

Science Conference Proceedings (OSTI)

Controllability and observability criteria for a linear stationary system are used to design recursive tests for slackening the computing system requirements for verification of the controllability and observability of large systems. Practical examples ... Keywords: 02.30.Yy+64.70.+p

E. Yu. Zybin; M. Sh. Misrikhanov; V. N. Ryabchenko

2006-05-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

An Observing System Simulation Experiment for the Indian Ocean  

Science Conference Proceedings (OSTI)

An integrated in situ Indian Ocean observing system (IndOOS) is simulated using a high-resolution ocean general circulation model (OGCM) with daily mean forcing, including an estimate of subdaily oceanic variability derived from observations. The ...

Gabriel A. Vecchi; Matthew J. Harrison

2007-07-01T23:59:59.000Z

42

An Observation System Using Both Optical Stitching and Video Geo ...  

home \\ technologies \\ optical stitching and video geo registration. Technologies: Ready-to-Sign Licenses: Software: Patents: An Observation System Using Both Optical ...

43

EO 12114: Environmental Effects Abroad of Major Federal Actions |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

EO 12114: Environmental Effects Abroad of Major Federal Actions EO 12114: Environmental Effects Abroad of Major Federal Actions EO 12114: Environmental Effects Abroad of Major Federal Actions The purpose of this Executive Order is to enable responsible officials of Federal Agencies having ultimate responsibility for authorizing and approving actions encompassed by this Order to be informed of pertinent environmental considerations and to take such considerations into account, with other pertinent considerations of national policy, in making decisions regarding such actions EO 12114: Environmental Effects Abroad of Major Federal Actions More Documents & Publications EIS-0386: Notice of Intent to Prepare a Programmatic Environmental Impact Statement, Amend Relevant Agency Land Use Plans, and Conduct Public Scoping

44

Rule-based system architecting of Earth observation satellite systems  

E-Print Network (OSTI)

System architecting is concerned with exploring the tradespace of early, high-level, system design decisions with a holistic, value-centric view. In the last few years, several tools and methods have been developed to ...

Selva Valero, Daniel

2012-01-01T23:59:59.000Z

45

Identification of Wiener systems with binary-valued output observations  

Science Conference Proceedings (OSTI)

This work is concerned with identification of Wiener systems whose outputs are measured by binary-valued sensors. The system consists of a linear FIR (finite impulse response) subsystem of known order, followed by a nonlinear function with a known parametrization ... Keywords: Binary-valued observations, Identification, Joint identifiability, Parameter estimation, Periodic inputs, Sensor thresholds, Wiener systems

Yanlong Zhao; Le Yi Wang; G. George Yin; Ji-Feng Zhang

2007-10-01T23:59:59.000Z

46

Observing-Systems Simulation Experiments: Past, Present, and Future  

Science Conference Proceedings (OSTI)

A summary of the history of observing-systems simulation experiments (OSSEs) is presented together with a description of current methodology, its capabilities and limitations, and considerations for the design of future experiments. These ...

Charles P. Arnold Jr.; Clifford H. Dey

1986-06-01T23:59:59.000Z

47

Thermodynamic Properties of Mesoscale Convective Systems Observed during BAMEX  

Science Conference Proceedings (OSTI)

Dropsonde observations from the Bow Echo and Mesoscale Convective Vortex Experiment (BAMEX) are used to document the spatiotemporal variability of temperature, moisture, and wind within mesoscale convective systems (MCSs). Onion-type sounding ...

James Correia Jr.; Raymond W. Arritt

2008-11-01T23:59:59.000Z

48

Integrating spacecraft and aircraft in Earth Observation System architectures  

E-Print Network (OSTI)

The Global Earth Observation System (GEOS) is the essential data gathering network that enables the advancement of Earth science. In recent years, efforts have been made to understand the major GEOS architectural tradeoffs. ...

Suarez, Brandon H

2011-01-01T23:59:59.000Z

49

Capturing the content of physics: systems, observables, and experiments  

Science Conference Proceedings (OSTI)

We present a content markup language for physics realized by extending the OMDoc format by an infrastructure for the principal concepts of physics: observables, physical systems, and experiments. The formalization of the description ...

Eberhard R. Hilf; Michael Kohlhase; Heinrich Stamerjohanns

2006-08-01T23:59:59.000Z

50

GPSCellular Drifter Technology for Coastal Ocean Observing Systems  

Science Conference Proceedings (OSTI)

A drifter for observing small spatial and temporal scales of motion in the coastal zone is presented. The drifter uses GPS to determine its position, and the Mobitex terrestrial cellular communications system to transmit the position data in near...

J. Carter Ohlmann; Peter F. White; Andrew L. Sybrandy; P. Peter Niiler

2005-09-01T23:59:59.000Z

51

Control Landscapes for Observable Preparation with Open Quantum Systems  

E-Print Network (OSTI)

A quantum control landscape is defined as the observable as a function(al) of the system control variables. Such landscapes were introduced to provide a basis to understand the increasing number of successful experiments controlling quantum dynamics phenomena. This paper extends the concept to encompass the broader context of the environment having an influence. For the case that the open system dynamics are fully controllable, it is shown that the control landscape for open systems can be lifted to the analysis of an equivalent auxiliary landscape of a closed composite system that contains the environmental interactions. This inherent connection can be analyzed to provide relevant information about the topology of the original open system landscape. Application to the optimization of an observable expectation value reveals the same landscape simplicity observed in former studies on closed systems. In particular, no false sub-optimal traps exist in the system control landscape when seeking to optimize an observable, even in the presence of complex environments. Moreover, a quantitative study of the control landscape of a system interacting with a thermal environment shows that the enhanced controllability attainable with open dynamics significantly broadens the range of the achievable observable values over the control landscape.

Rebing Wu; Alexander Pechen; Herschel Rabitz; Michael Hsieh; Benjamin Tsou

2007-08-16T23:59:59.000Z

52

Lessen 2Lessen 2 Earth System Observation:Earth System Observation  

E-Print Network (OSTI)

T k t th E tTracks at the Equator 4 #12;Timing of Adjacent Landsat 5 or 7 Coverage Tracks 5 Adjacent an understanding of the total Earth system, and the effects of natural and human-induced changes on the global Landsat 1 in January 1975J y Radiation Research Satellite Nimbus (launches 1964-1978) ­ Successor

Li, Zhanqing

53

A cooperative control algorithm for camera based observational systems.  

SciTech Connect

Over the last several years, there has been considerable growth in camera based observation systems for a variety of safety, scientific, and recreational applications. In order to improve the effectiveness of these systems, we frequently desire the ability to increase the number of observed objects, but solving this problem is not as simple as adding more cameras. Quite often, there are economic or physical restrictions that prevent us from adding additional cameras to the system. As a result, we require methods that coordinate the tracking of objects between multiple cameras in an optimal way. In order to accomplish this goal, we present a new cooperative control algorithm for a camera based observational system. Specifically, we present a receding horizon control where we model the underlying optimal control problem as a mixed integer linear program. The benefit of this design is that we can coordinate the actions between each camera while simultaneously respecting its kinematics. In addition, we further improve the quality of our solution by coupling our algorithm with a Kalman filter. Through this integration, we not only add a predictive component to our control, but we use the uncertainty estimates provided by the filter to encourage the system to periodically observe any outliers in the observed area. This combined approach allows us to intelligently observe the entire region of interest in an effective and thorough manner.

Young, Joseph G.

2012-01-01T23:59:59.000Z

54

Dynamical Detection on Urban Sprawl Based on EO Data  

Science Conference Proceedings (OSTI)

With the development of society and economy, the rapid urban sprawl in land use is being witnessed of late in urban districts. As a result, many problems in society and environment have appeared in urban districts, such as population expansion, air pollution, ... Keywords: EO data, GIS, Integration, RS, urban spraw

Pan Hongyi; Peng Wenfu; He Wei; Jiang Guiguo; Zhou Jieming; Zhou Wancun

2009-05-01T23:59:59.000Z

55

LOW-FREQUENCY OBSERVATIONS OF THE MOON WITH THE MURCHISON WIDEFIELD ARRAY  

SciTech Connect

A new generation of low-frequency radio telescopes is seeking to observe the redshifted 21 cm signal from the epoch of reionization (EoR), requiring innovative methods of calibration and imaging to overcome the difficulties of wide-field low-frequency radio interferometry. Precise calibration will be required to separate the expected small EoR signal from the strong foreground emission at the frequencies of interest between 80 and 300 MHz. The Moon may be useful as a calibration source for detection of the EoR signature, as it should have a smooth and predictable thermal spectrum across the frequency band of interest. Initial observations of the Moon with the Murchison Widefield Array 32 tile prototype show that the Moon does exhibit a similar trend to that expected for a cool thermally emitting body in the observed frequency range, but that the spectrum is corrupted by reflected radio emission from Earth. In particular, there is an abrupt increase in the observed flux density of the Moon within the internationally recognized frequency modulated (FM) radio band. The observations have implications for future low-frequency surveys and EoR detection experiments that will need to take this reflected emission from the Moon into account. The results also allow us to estimate the equivalent isotropic power emitted by the Earth in the FM band and to determine how bright the Earth might appear at meter wavelengths to an observer beyond our own solar system.

McKinley, B.; Briggs, F. [Research School of Astronomy and Astrophysics, Australian National University, Canberra (Australia); Kaplan, D. L. [Department of Physics, University of Wisconsin-Milwaukee, Milwaukee, WI (United States); Greenhill, L. J.; Bernardi, G.; De Oliveira-Costa, A. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States); Bowman, J. D. [School of Earth and Space Exploration, Arizona State University, Tempe, AZ (United States); Tingay, S. J.; Gaensler, B. M. [ARC Centre of Excellence for All-Sky Astrophysics (CAASTRO), School of Physics, The University of Sydney, Sydney, NSW (Australia); Oberoi, D. [National Centre for Radio Astrophysics, Tata Institute for Fundamental Research, Pune (India); Johnston-Hollitt, M. [School of Chemical and Physical Sciences, Victoria University of Wellington, Wellington (New Zealand); Arcus, W.; Emrich, D. [International Centre for Radio Astronomy Research, Curtin University, Perth (Australia); Barnes, D. [Center for Astrophysics and Supercomputing, Swinburne University of Technology, Melbourne (Australia); Bunton, J. D. [CSIRO Astronomy and Space Science, Canberra (Australia); Cappallo, R. J.; Corey, B. E. [MIT Haystack Observatory, Westford, MA (United States); Deshpande, A. [Raman Research Institute, Bangalore (India); DeSouza, L. [Sydney Institute for Astronomy, School of Physics, University of Sydney, Sydney (Australia); Goeke, R. [MIT Kavli Institute for Astrophysics and Space Research, Cambridge, MA (United States); and others

2013-01-01T23:59:59.000Z

56

Docket_N._EO-05-01signedby_Secretary_Bodman-_dated_92806.PDF...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DocketN.EO-05-01signedbySecretaryBodman-dated92806.PDF DocketN.EO-05-01signedbySecretaryBodman-dated92806.PDF DocketN.EO-05-01signedbySecretaryBodman-dated92806.P...

57

EVN observations of the lens system B0128+437  

E-Print Network (OSTI)

Previous VLBI observations of the lens system CLASS B0128+437 showed that the lensed source had a triple sub-component structure. However, one of the images looked very different to the others and it has been suggested that this is due to scatter-broadening in the ISM of the lensing galaxy. We present a new 21-cm EVN map of this system, the low frequency compared to previous epochs chosen as the scattering should be more pronounced at this frequency. Analysis of the new map is at an early stage, but the area of scattering in the affected image is extremely obvious. Other points of interest that we seek to explain are the very large sizes of the images (in conflict with the observed spectral turnover at about 1 GHz) and the different position angle of one of the images at different frequencies.

A. D. Biggs

2004-12-30T23:59:59.000Z

58

EO 11514: Protection and Enhancement of Environmental Quality | Department  

NLE Websites -- All DOE Office Websites (Extended Search)

1514: Protection and Enhancement of Environmental Quality 1514: Protection and Enhancement of Environmental Quality EO 11514: Protection and Enhancement of Environmental Quality The Federal Government shall provide leadership in protecting and enhancing the quality of the Nation's environment to sustain and enrich human life. Federal agencies shall initiate measures needed to direct their policies, plans and programs so as to meet national environmental goals. The Council on Environmental Quality, through the Chairman, shall advise and assist the President in leading this national effort. EO 11514: Protection and Enhancement of Environmental Quality More Documents & Publications Regulations for Implementing the Procedural Provisions of NEPA The National Environmental Policy Act of 1969 Executive Order 11990-Protection Of Wetlands

59

Assimilation of Satellite Infrared Radiances and Doppler Radar Observations during a Cool Season Observing System Simulation Experiment  

Science Conference Proceedings (OSTI)

An observing system simulation experiment is used to examine the impact of assimilating water vaporsensitive satellite infrared brightness temperatures and Doppler radar reflectivity and radial velocity observations on the analysis accuracy of a ...

Thomas A. Jones; Jason A. Otkin; David J. Stensrud; Kent Knopfmeier

2013-10-01T23:59:59.000Z

60

Aerosol observing system platform integration and AAF instrumentation  

SciTech Connect

As part of the federal governments 2009 American Recovery and Reinvestment Act (ARRA), the U.S. DOE Office of Science allocated funds for the capital upgrade of the Atmospheric Radiation Measurement (ARM) Climate Research Facility to improve and expand observational capabilities related to cloud and aerosol properties. The ARM Facility was established as a national user facility for the global scientific community to conduct a wide range of interdisciplinary science. Part of the ARRA-funded expansion of the ARM Facility includes four new Aerosol Observing Systems (AOS) to be designed, instrumented, and mentored by BNL. The enclosures will be customized SeaTainers. These new platforms ([AMF2]: ARM Mobile Facility-2; [TWP-D]: Tropical Western Pacific at Darwin; and [MAOS-A]/[MAOS-C]: Mobile Aerosol Observing System-Aerosol/-Chemistry) will provide a laboratory environment for fielding instruments to collect data on aerosol life cycle, microphysics, and optical/physical properties. The extensive instrument suite includes both established methods and initial deployments of new techniques to add breadth and depth to the AOS data sets. The platforms are designed: (1) to have all instruments pre-installed before deployment, allowing a higher measurement duty cycle; (2) with a standardized configuration improving the robustness of data inter-comparability; (3) to provide remote access capability for instrument mentors; and (4) to readily accommodate guest instrumentation. The first deployment of the AMF2 platform will be at the upcoming StormVEx campaign held at Steamboat Springs, Colorado, October 15, 2010March 31, 2011 while the TWP-D AOS will be stationed at the ARM Darwin site. The maiden deployments of the MAOS-A and MAOS-C platforms will be during the Ganges Valley Experiment (GVAX) scheduled for April 2011April 2012. In addition to the ground-based AOS platforms, thee major instrument builds for the AAF are also being undertaken (new trace gas package [NO, NOx, NOy, CO, O3, and SO2]; Scanning Mobility Particle Sampler [SMPS]; and Particle into Liquid Sampler [PILS]). The current status of the AOS platforms, instrument suites, instituted QA/QC activities, projected AOS VAPs, and inlet design, as well as still-unresolved issues, will be presented.

Springston, S.; Sedlacek, A.

2010-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


61

Controlled Unclassified Information and E.O. 13556 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Controlled Unclassified Information and E.O. 13556 Controlled Unclassified Information and E.O. 13556 Controlled Unclassified Information and E.O. 13556 When you hear the term Controlled Unclassified Information (CUI), it could mean one of two things. Currently, within DOE "Controlled Unclassified Information " or CUI is an overarching term used to refer to unclassified information that is identified and marked as sensitive (e.g., OUO and Unclassified Controlled Nuclear Information (UCNI)). Controlled Unclassified Information is also used to describe information that will be identified and safeguarded under Executive Order (E.O.) 13556, Controlled Unclassified Information. E.O. 13556 mandates a Government-wide uniform program to identify and protect sensitive but unclassified information. At this time, policies for CUI under the E.O. are still being

62

EO 12866 meeting materials from 2/8 - DOE Distrubtion Transformers...  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

meeting materials from 28 - DOE Distrubtion Transformers (1904-AC04) EO 12866 meeting materials from 28 - DOE Distrubtion Transformers (1904-AC04) BGE's Comments - DOE Rulemaking...

63

ARM's Aerosol Observing System (AOS) Data  

DOE Data Explorer (OSTI)

The aerosol observing system (AOS) is the primary Atmospheric Radiation Measurement (ARM) platform for in situ aerosol measurements at the surface. The principal measurements are those of the aerosol absorption and scattering coefficients as a function of the particle size and radiation wavelength. Additional measurements include those of the particle number concentration, size distribution, hygroscopic growth, and inorganic chemical composition. The AOS measures aerosol optical properties to better understand how particles interact with solar radiation and influence the earth's radiation balance. The measurements are useful for calculating parameters used in radiative forcing calculations such as the aerosol single scattering albedo, asymmetry parameter, mass scattering efficiency, and hygroscopic growth. [Copied from http://www.arm.gov/instruments/aos]

The ARM Archive at Oak Ridge National Laboratory holds aerosol data from the AOS for two of the permanent ARM sites, North Slope Alaska (NSA) and Southern Great Plains (SGP), as well as from mobile facilities used during specific field campaigns. The AOS has collected data since 1995.

64

Numerical Study of an Observed Orogenic Mesoscale Convective System. Part 1: Simulated Genesis and Comparison with Observations  

Science Conference Proceedings (OSTI)

The interaction of topographically induced thermally and mechanically driven diurnal flow regimes in the lee of the Rockies is shown to lead to the growth of a mesoscale convective system (MCS). An organic MCS observed during the 1977 combined ...

Gregory J. Tripoli; William R. Cotton

1989-02-01T23:59:59.000Z

65

Observational Analysis of the Predictability of Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

Mesoscale convective systems (MCSs) have a large influence on the weather over the central United States during the warm season by generating essential rainfall and severe weather. To gain insight into the predictability of these systems, the ...

Israel L. Jirak; William R. Cotton

2007-08-01T23:59:59.000Z

66

Potomac River Generating Station Dept. of Energy Case No. EO-05-01; September 8, 2005  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Craig A. Glazer Craig A. Glazer Vice President - Federal Government Policy PJM Washington Office (202) 393-7756 .FAX (202) 393-7741 e-mail: glazec@pjm.com CRITICAL ENERGY INFRASTRUCTURE INFORMATION HAS BEEN REMOVED FROM THIS SUBMITTAL FOR PRIVILEGED TREATMENT September 8, 2005 Lawrence Mansueti Office of Electricity Delivery and Energy Reliability U.S. Department of Energy Rm. 8H-033 1000 Independence Avenue Washington, D.C. 20585 Re: Potomac River Generating Station Dept. of Energy Case No. EO-05-01 Dear Mr. Mansueti: PJM Interconnection, L.L.C. and PEPCO Holdings, Inc. is hereby providing you with additional information concerning reliability impacts under various system conditions associated with the unavailability of the Potomac River Generating Station to serve load in the D.C. area.

67

Observing industrial control system attacks launched via metasploit framework  

Science Conference Proceedings (OSTI)

Industrial Control Systems (ICS) are present across many industries ranging from automotive to utilities. These systems have been found to be connected to corporate enterprise servers and can communicate over unencrypted communication channels. Interconnections ... Keywords: SCADA, industrial control systems, intrusion detection

Nathan Wallace, Travis Atkison

2013-04-01T23:59:59.000Z

68

Combined System for Observations of Tropospheric and Stratospheric Thin Clouds  

Science Conference Proceedings (OSTI)

A balloonborne sonde and a polarization lidar have been developed to make combined observations of thin tropospheric and stratospheric clouds. In their first application these instruments have been used in a campaign organized to study Antarctic ...

A. Adriani; G. P. Gobbi; M. Viterbini; S. Ugazio

1993-02-01T23:59:59.000Z

69

Observations On European Advanced Traveler Information And Traffic Management Systems  

E-Print Network (OSTI)

Road Transport Informatics (RTI). There were four areas ofstudy road safety through RTI and to define functionalrequirements for the relevant RTI systems (14 projects); 3)

Yim, Youngbin; Ygnace, Jean-luc

1993-01-01T23:59:59.000Z

70

Estimation of WECC System Inertia Using Observed Frequency Transients  

SciTech Connect

As demand for electricity in the western United States increases, stresses upon the aging power grid are intensifying. Computer models based on complex mathematical relationships are being developed to assist in understanding the impact of deregulation and market transformation. Frequency, load, and plant outage events data collected over the last several years. Analysis of these events was performed to determine frequency deviation and the systems inertial constant (M) during each event. Utilizing a theoretical relationship that relates system inertia to power loss, M was calculated for 157 events. The relationship of M to system wide load was then examined.

Chassin, David P.; Huang, Zhenyu; Donnelly, Matt K.; Hassler, Candee A.; Ramirez, Enrique; Ray, Cody W.

2005-04-19T23:59:59.000Z

71

An Observational Study of Derecho-Producing Convective Systems  

Science Conference Proceedings (OSTI)

This study identifies the common large-scale environments associated with the development of derecho- producing convective systems (DCSs) from a large number of events. Patterns are identified using statistical clustering of the 500-mb ...

Michael C. Coniglio; David J. Stensrud; Michael B. Richman

2004-04-01T23:59:59.000Z

72

An Observing System Experiment with the West Coast Picket Fence  

Science Conference Proceedings (OSTI)

Analyses and forecasts from a modern data assimilation and modeling system are used to evaluate the impact of a special rawinsonde dataset of 3-h soundings at seven sites interspersed with the seven regular sites along the West Coast (to form a ...

Paul A. Hirschberg; Perry C. Shafran; Russell L. Elsberry; Elizabeth A. Ritchie

2001-10-01T23:59:59.000Z

73

Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Further Notice of 230kV Circuit Planned Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages Docket No. EO-05-01. Pursuant to the United States Department of Energy Order No. 202-05-03, issued December 20, 2005 directing Mirant Potomac River to generate electricity at Potomac River Generating Station, PEPCO hereby files this Further Notice of 230kV Circuit Planned Outages. Docket No. EO-05-01: Further Notice of 230kV Circuit Planned Outages More Documents & Publications Further Notice of 230kV Circuit Planned Outages Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits Re: Potomac River Generating Station Department of Energy Case No.

74

Docket-EO-05-01: Documents Concerning the 2005-2007 Emergency Reliability  

NLE Websites -- All DOE Office Websites (Extended Search)

Docket-EO-05-01: Documents Concerning the Docket-EO-05-01: Documents Concerning the 2005-2007 Emergency Reliability Orders Concerning the Potomac River Generating Station under Section 202(c) of the Federal Power Act Docket-EO-05-01: Documents Concerning the 2005-2007 Emergency Reliability Orders Concerning the Potomac River Generating Station under Section 202(c) of the Federal Power Act The Department of Energy hereby makes the following documents in DOE docket number EO-05-01 available to the public. This proceeding is separate from a proceeding before the Federal Energy Regulatory Commission (FERC) at FERC docket number EL05-145-000. Submissions to DOE's docket are not considered to be filed in the FERC docket, and actions taken in the docket before DOE have no bearing on actions taken by FERC in the docket before it. However,

75

Mapping of hydrothermally altered rocks by the EO-1 Hyperion sensor, Northern Danakil Depression, Eritrea  

Science Conference Proceedings (OSTI)

An EO-1 Hyperion scene was used to identify and map hydrothermally altered rocks and a Precambrian metamorphic sequence at and around the Alid volcanic dome, at the northern Danakil Depression, Eritrea. Mapping was coupled with laboratory analyses, including ...

Ronen Gersman; Eyal Ben-Dor; Michael Beyth; Dov Avigad; Michael Abraha; Alem Kibreab

2008-07-01T23:59:59.000Z

76

District of Columbia Public Service Commission. Docket No. EO-05-01 Pepco  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

District of Columbia Public Service Commission. Docket No. EO-05-01 District of Columbia Public Service Commission. Docket No. EO-05-01 Pepco Response to the City of Alexandria's Supplemental Comments District of Columbia Public Service Commission. Docket No. EO-05-01 Pepco Response to the City of Alexandria's Supplemental Comments Docket No. EO-05-01: In accordance with Order No. 202-06-01, issued by the Department of Energy ("DOE") on February 17, 2006, Potomac Electric Power Company ("Pepoo") hereby submits this Response to City of Alexandria Supplemental Comments filed March 23. On or about March 23, 2006, several parties, including the City of Alexandria, filed comments in response to Order No. 202-06-1. The City of Alexandria's Supplemental Comments offer several purported alternatives to maintain

77

Docket-EO-05-01: Documents Concerning the 2005-2007 Emergency...  

NLE Websites -- All DOE Office Websites (Extended Search)

Docket-EO-05-01: Documents Concerning the 2005-2007 Emergency Reliability Orders Concerning the Potomac River Generating Station under Section 202(c) of the Federal Power Act...

78

The Effect of Satellite Observing System Changes on MERRA Water and Energy Fluxes  

Science Conference Proceedings (OSTI)

Like all reanalysis efforts, the Modern Era Retrospective-Analysis for Research and Applications (MERRA) must contend with an inhomogeneous observing network. Here the effects of the two most obvious observing system epoch changes, the Advanced ...

Franklin R. Robertson; Michael G. Bosilovich; Junye Chen; Timothy L. Miller

2011-10-01T23:59:59.000Z

79

An Automated, Observations-Based System for Short-Term Prediction of Ceiling and Visibility  

Science Conference Proceedings (OSTI)

Several methods of generating very short term (06 h) probabilistic forecasts of ceiling and visibility are investigated: 1) an observations-based (OBS-based) system in which potential predictors consist of weather observations from a network of ...

Robert L. Vislocky; J. Michael Fritsch

1997-03-01T23:59:59.000Z

80

Assimilation of Synthetic Tropical Cyclone Observations into the Navy Operational Global Atmospheric Prediction System  

Science Conference Proceedings (OSTI)

In June 1990, the assimilation of synthetic tropical cyclone observations into the Navy Operational Global Atmospheric Prediction System (NOGAPS) was initiated at Fleet Numerical Oceanography Center (FNOC). These observations are derived directly ...

James S. Goerss; Richard A. Jeffries

1994-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


81

Assimilation of Infrared Radiances in the Context of Observing System Simulation Experiments  

Science Conference Proceedings (OSTI)

The Observing System Simulation Experiment (OSSE) capability developed at Environment Canada allows simulation of all observation types currently used operationally as well as future data types. Its infrastructure, based on the operational global ...

Sylvain Heilliette; Yves J. Rochon; Louis Garand; Jacek W. Kaminski

2013-04-01T23:59:59.000Z

82

Passive Microwave Observations of the Stratiform Regions of Two Tropical Oceanic Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

High-resolution passive microwave observations within the stratiform regions of two different tropical oceanic mesoscale convective systems are investigated in detail. The observations were obtained from the Advanced Microwave Precipitation ...

Gary McGaughey; Edward J. Zipser

1996-11-01T23:59:59.000Z

83

LBL-34868 UC-800 EOS7R: Radionuclide Transport for TOUGH2  

E-Print Network (OSTI)

EOS7R provides radionuclide transport capability for TOUGH2. EOS7R extends the EOS7 module (water, brine, and optional air) to model water, brine, parent component, daughter component, and optional air and heat. The radionuclide components follow a first-order decay law, and may adsorb onto the solid grains. Volatilization of the decaying components is modeled by Henry's Law. The decaying components are normally referred to as radionuclides, but they may in fact be any trace components that decay, adsorb, and volatilize. The decay process need not be radioactive decay, but could be any process that follows a first-order decay law, such as biodegradation. EOS7R includes molecular diffusion for all components in gaseous and aqueous phases using a simplified binary diffusion model. When EOS7R is used with standard TOUGH2, transport occurs by advection and molecular diffusion in all phases. When EOS7R is coupled with the dispersion module T2DM, one obtains T2DMR, the radionuclide transport version of T2DM. T2DMR models advection, diffusion, and hydrodynamic dispersion in rectangular two-dimensional regions. Modeling of radionuclide transport requires input parameters specifying the half-life for first-order decay, distribution coefficients for each rock

Curtis M. Oldenburg; Karsten Pruess

1995-01-01T23:59:59.000Z

84

Monitoring of Observation and Analysis Quality by a Data Assimilation System  

Science Conference Proceedings (OSTI)

The purpose of this paper is to demonstrate the ability of a modern data assimilation system to provide long-term diagnostic facilities to monitor the performance of the observational network. Operational data assimilation systems use short-range ...

A. Hollingsworth; D. B. Shaw; P. Lnnberg; L. Illari; K. Arpe; A. J. Simmons

1986-05-01T23:59:59.000Z

85

A Comparison of Variational and Ensemble-Based Data Assimilation Systems for Reanalysis of Sparse Observations  

Science Conference Proceedings (OSTI)

An observing system experiment, simulating a surface-only observing network representative of the 1930s, is carried out with three- and four-dimensional variational data assimilation systems (3D-VAR and 4D-VAR) and an ensemble-based data ...

Jeffrey S. Whitaker; Gilbert P. Compo; Jean-Nol Thpaut

2009-06-01T23:59:59.000Z

86

An observability formulation for nonlinear power systems modeled as differential algebraic systems.  

E-Print Network (OSTI)

??Recently the power system industry has witnessed an increase in system automation affecting all aspects of operation and requiring knowledge of system states that are (more)

Dafis, Chris J.

2005-01-01T23:59:59.000Z

87

Cross-layer virtual observers for embedded multiprocessor system-on-chip (MPSoC)  

Science Conference Proceedings (OSTI)

There is a growing concern about the increasing vulnerability of future computing systems to errors in the underlying hardware due to manufacturing process variability, exponentially increasing power dissipation and heating, as well as drastic and harsh ... Keywords: cross-layer design approach, cyber physical systems, estimators, multi-processor systems-on-chip, observers, reflective middleware

Santanu Sarma; Nikil Dutt; Nalini Venkatasubramanian

2012-12-01T23:59:59.000Z

88

Predictability of event occurrences in partially-observed discrete-event systems  

Science Conference Proceedings (OSTI)

This paper studies the problem of predicting occurrences of a significant event in a partially-observed discrete-event system. The predictability of occurrences of an event in a system is defined in the context of formal languages. The predictability ... Keywords: Diagnosis, Discrete-event systems, Prediction

Sahika Genc; Stphane Lafortune

2009-02-01T23:59:59.000Z

89

ORNL's Amit Goyal wins E.O. Lawrence Award | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ORNL's Amit Goyal wins E.O. Lawrence Award ORNL's Amit Goyal wins E.O. Lawrence Award ORNL's Amit Goyal wins E.O. Lawrence Award November 29, 2011 - 9:31am Addthis Dr. Amit Goyal, a high temperature superconductivity (HTS) researcher at Oak Ridge National Laboratory, has been named a winner of the Department of Energy's Ernest Orlando Lawrence Award honoring U.S. scientists and engineers for exceptional contributions in research and development supporting DOE and its mission. Winner of the award in the inaugural category of Energy Science and Innovation, Dr. Goyal was cited for his work in "pioneering research and transformative contributions to the field of applied high temperature superconductivity, including fundamental materials science advances and technical innovations enabling large-scale

90

Secretary of Energy Announces Eight E.O. Lawrence Award Winners |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Secretary of Energy Announces Eight E.O. Lawrence Award Winners Secretary of Energy Announces Eight E.O. Lawrence Award Winners Secretary of Energy Announces Eight E.O. Lawrence Award Winners February 7, 2007 - 10:15am Addthis WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today named eight winners of the Ernest Orlando Lawrence Award. The Lawrence Award honors scientists and engineers at mid-career for exceptional contributions in research and development that support the Department of Energy and its mission to advance the national, economic and energy security of the United States. The award consists of a gold medal, a citation and an honorarium of $50,000. "These brilliant scientists and their varied and important research inspire us," Secretary Bodman said. "Their work reminds us of the importance of

91

Docket No. EO-05-01: Letter Documenting Department of Energy Receipt of the  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Documenting Department of Energy Documenting Department of Energy Receipt of the Mirant Potomac River Compliance Plan Docket No. EO-05-01: Letter Documenting Department of Energy Receipt of the Mirant Potomac River Compliance Plan Docket No. EO-05-01: Letter documenting Department of Energy receipt of the Mirant Potomac River compliance plan, and informing Mirant that additional comments on the plan would be forthcoming. Docket No. EO-05-01: Letter Documenting Department of Energy Receipt of the Mirant Potomac River Compliance Plan More Documents & Publications Comments on Department of Energy's Emergency Order To Resume Limited Operation at Mirant's Potomac River Generating Station and Proposed Mirant Compliance Plan Motion for Leave to Answer and Answer of Potomac Electric Power Company

92

EO 13212: Actions To Expedite Energy-Related Projects | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

2: Actions To Expedite Energy-Related Projects 2: Actions To Expedite Energy-Related Projects EO 13212: Actions To Expedite Energy-Related Projects The increased production and transmission of energy in a safe and environmentally sound manner is essential to the well-being of the American people. In general, it is the policy of this Administration that executive departments and agencies (agencies) shall take appropriate actions, to the extent consistent with applicable law, to expedite projects that will increase the production, transmission, or conservation of energy. EO 13212: Actions To Expedite Energy-Related Projects More Documents & Publications Executive Order 13212 - Actions To Expedite Energy-Related Projects: Federal Register Notice Volume 66, No. 99 - May 18, 2001 EO 13211: Regulations That Significantly Affect Energy Supply,

93

Secretary of Energy Announces Eight E.O. Lawrence Award Winners |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Eight E.O. Lawrence Award Winners Eight E.O. Lawrence Award Winners Secretary of Energy Announces Eight E.O. Lawrence Award Winners February 7, 2007 - 10:15am Addthis WASHINGTON, DC - Secretary of Energy Samuel W. Bodman today named eight winners of the Ernest Orlando Lawrence Award. The Lawrence Award honors scientists and engineers at mid-career for exceptional contributions in research and development that support the Department of Energy and its mission to advance the national, economic and energy security of the United States. The award consists of a gold medal, a citation and an honorarium of $50,000. "These brilliant scientists and their varied and important research inspire us," Secretary Bodman said. "Their work reminds us of the importance of continued investment in science and the need for increased emphasis on

94

An Integrated Global Observing System For Sea Surface Temperature Using Satellites and in Situ Data: Research to Operations  

Science Conference Proceedings (OSTI)

This paper describes the optimal design and its research-to-operation transition of an integrated global observing system of satellites and in situ observations. The integrated observing system is used for climate assessment using sea surface ...

H-M. Zhang; R. W. Reynolds; R. Lumpkin; R. Molinari; K. Arzayus; M. Johnson; T. M. Smith

2009-01-01T23:59:59.000Z

95

A Lightweight Observation System for Atmospheric Carbon Dioxide Concentration Using a Small Unmanned Aerial Vehicle  

Science Conference Proceedings (OSTI)

To make the investigation of the temporal and spatial variations of atmospheric CO2 in and above the planetary boundary layer more flexible and economical, a lightweight observation system using a small unmanned aerial vehicle has been developed ...

T. Watai; T. Machida; N. Ishizaki; G. Inoue

2006-05-01T23:59:59.000Z

96

Finescale Vertical Structure of the Upwelling System off Southern Peru as Observed from Glider Data  

Science Conference Proceedings (OSTI)

The upwelling system off southern Peru has been observed using an autonomous underwater vehicle (a Slocum glider) during OctoberNovember 2008. Nine cross-front sections have been carried out across an intense upwelling cell near 14S. During ...

Alice Pietri; Pierre Testor; Vincent Echevin; Alexis Chaigneau; Laurent Mortier; Gerard Eldin; Carmen Grados

2013-03-01T23:59:59.000Z

97

Composite Life Cycle of Maritime Tropical Mesoscale Convective Systems in Scatterometer and Microwave Satellite Observations  

Science Conference Proceedings (OSTI)

This study examines scatterometer-observed surface wind divergence and vorticity, along with precipitable water (PW), across the life cycle of tropical maritime mesoscale convective systems (MCSs) as resolved in 0.5 data. Simple composites were ...

Brian Mapes; Ralph Milliff; Jan Morzel

2009-01-01T23:59:59.000Z

98

A generic multi-scale modeling framework for reactive observing systems: an overview  

Science Conference Proceedings (OSTI)

Observing systems facilitate scientific studies by instrumenting the real world and collecting corresponding measurements, with the aim of detecting and tracking phenomena of interest. A wide range of critical environmental monitoring objectives in resource ...

Leana Golubchik; David Caron; Abhimanyu Das; Amit Dhariwal; Ramesh Govindan; David Kempe; Carl Oberg; Abhishek Sharma; Beth Stauffer; Gaurav Sukhatme; Bin Zhang

2006-05-01T23:59:59.000Z

99

Filtering Partially Observed Multiscale Systems with Heterogeneous Multiscale MethodsBased Reduced Climate Models  

Science Conference Proceedings (OSTI)

This paper presents a fast reduced filtering strategy for assimilating multiscale systems in the presence of observations of only the macroscopic (or large scale) variables. This reduced filtering strategy introduces model errors in estimating the ...

Emily L. Kang; John Harlim

2012-03-01T23:59:59.000Z

100

The Accuracy of Trajectory Models as Revealed by the Observing System Simulation Experiments  

Science Conference Proceedings (OSTI)

Fourteen observing system simulation experiments (OSSE) wore conducted using the results from a mesoscale model on the Oxidation and Scavenging Characteristics of April Rains(OSCAR) experiment to test the accuracy of trajectory models. Our ...

Ying-Hwa Kuo; Marina Skumanich; Philip L. Haagenson; Julius S. Chang

1985-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


101

Total Lightning Characteristics Relative to Radar and Satellite Observations of Oklahoma Mesoscale Convective Systems  

Science Conference Proceedings (OSTI)

The advent of regional very high frequency (VHF) Lightning Mapping Arrays (LMAs) makes it possible to begin analyzing trends in total lightning characteristics in ensembles of mesoscale convective systems (MCSs). Flash initiations observed by the ...

Jeffrey A. Makowski; Donald R. MacGorman; Michael I. Biggerstaff; William H. Beasley

2013-05-01T23:59:59.000Z

102

The United States Cooperative Climate-Observing Systems: Reflections and Recommendations  

Science Conference Proceedings (OSTI)

The system for the collection and archiving of climatic data from approximately 7000 cooperative observing stations across the United States is in need of improvement. Despite the efforts of many dedicated volunteers and professionals, suspect or ...

David A. Robinson

1990-06-01T23:59:59.000Z

103

A System for the Hourly Assimilation of Surface Observations in Mountainous and Flat Terrain  

Science Conference Proceedings (OSTI)

An assimilation system is presented that was designed to provide timely, detailed, and coherent analyses of surface data, even when the data are collected in rough terrain where station elevations differ widely and observations are often subject ...

Patricia A. Miller; Stanley G. Benjamin

1992-10-01T23:59:59.000Z

104

Using Precipitation Observations in a Mesoscale Short-Range Ensemble Analysis and Forecasting System  

Science Conference Proceedings (OSTI)

A simple method to assimilate precipitation data from a synthesis of radar and gauge data is developed to operate alongside an ensemble Kalman filter that assimilates hourly surface observations. The mesoscale ensemble forecast system consists of ...

Tadashi Fujita; David J. Stensrud; David C. Dowell

2008-06-01T23:59:59.000Z

105

An Observing System Simulation Experiment for an Optimal Moored Instrument Array in the Tropical Indian Ocean  

Science Conference Proceedings (OSTI)

In this paper, a series of observing system simulation experiments (OSSEs) are used to study the design of a proposed array of instrumented moorings in the Indian Ocean (IO) outlined by the IO panel of the Climate Variability and Predictability (...

Joaquim Ballabrera-Poy; Eric Hackert; Raghu Murtugudde; Antonio J. Busalacchi

2007-07-01T23:59:59.000Z

106

An Observing System Simulation Experiment for the Laser Atmospheric Wind Sounder (LAWS)  

Science Conference Proceedings (OSTI)

A series of observing system simulation experiments (OSSES) was conducted to assess the potential impact of the Laser Atmospheric Wind Sounder (LAWS) instrument on a 5-day forecast using the Florida State University (FSU) primitive equation ...

G. D. Rohaly; T. N. Krishnamurti

1993-09-01T23:59:59.000Z

107

Numerical Experiments on Consistent Horizontal and Vertical Resolution for Atmospheric Models and Observing Systems  

Science Conference Proceedings (OSTI)

Simple numerical experiments are performed in order to determine the effects of inconsistent combinations of horizontal and vertical resolution in both atmospheric models and observing systems. In both cases, we find that inconsistent spatial ...

Michael S. Fox-Rabinovitz; Richard S. Lindzen

1993-01-01T23:59:59.000Z

108

Clouds and the Earth's Radiant Energy System (CERES): An Earth Observing System Experiment  

Science Conference Proceedings (OSTI)

Clouds and the Earth's Radiant Energy System (CERES) is an investigation to examine the role of cloud/radiation feedback in the Earth's climate system. The CERES broadband scanning radiometers are an improved version of the Earth Radiation Budget ...

Bruce A. Wielicki; Bruce R. Barkstrom; Edwin F. Harrison; Robert B. Lee III; G. Louis Smith; John E. Cooper

1996-05-01T23:59:59.000Z

109

Observing System Simulation Experiments (OSSEs) for the Mid-Columbia Basin  

DOE Green Energy (OSTI)

The overall goal of this multi-phased research project known as WindSENSE is to develop an observation system deployment strategy that would improve wind power generation forecasts. The objective of the deployment strategy is to produce the maximum benefit for 1- to 6-hour ahead forecasts of wind speed at hub-height ({approx}80 m). In this phase of the project the focus is on the Mid-Columbia Basin region, which encompasses the Bonneville Power Administration (BPA) wind generation area (Figure 1) that includes the Klondike, Stateline, and Hopkins Ridge wind plants. There are two tasks in the current project effort designed to validate the Ensemble Sensitivity Analysis (ESA) observational system deployment approach in order to move closer to the overall goal: (1) Perform an Observing System Experiment (OSE) using a data denial approach. The results of this task are presented in a separate report. (2) Conduct a set of Observing System Simulation Experiments (OSSE) for the Mid-Colombia basin region. This report presents the results of the OSSE task. The specific objective is to test strategies for future deployment of observing systems in order to suggest the best and most efficient ways to improve wind forecasting at BPA wind farm locations. OSSEs have been used for many years in meteorology to evaluate the potential impact of proposed observing systems, determine tradeoffs in instrument design, and study the most effective data assimilation methodologies to incorporate the new observations into numerical weather prediction (NWP) models (Atlas 1997; Lord 1997). For this project, a series of OSSEs will allow consideration of the impact of new observing systems of various types and in various locations.

Zack, J; Natenberg, E J; Knowe, G V; Waight, K; Manobianco, J; Hanley, D; Kamath, C

2011-09-13T23:59:59.000Z

110

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy  

E-Print Network (OSTI)

control conditioning strategies. Using strategies based on sensor network occupancy model predictions, weOBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy Varick L. Erickson, Miguel Á Descriptors I.6.5 [Simulation and Modeling]: Model Development; J.7 [Computers In Other Systems]: Command

Cerpa, Alberto E.

111

Obtaining data for wind farm development and management: the EO-WINDFARM project  

E-Print Network (OSTI)

). That sector has a mean growth rate of 30% for the last two years. The total installed wind power capacity of development of these EO-based services are evoked. Introduction The Kyoto objectives are stated into the White sources for producing electricity. For Europe, the part of renewable energy sources in electricity

112

Assimilation of Standard and Targeted Observations within the Unstable Subspace of the ObservationAnalysisForecast Cycle System  

Science Conference Proceedings (OSTI)

In this paper it is shown that the flow-dependent instabilities that develop within an observationanalysisforecast (OAF) cycle and that are responsible for the background error can be exploited in a very simple way to assimilate observations. ...

Anna Trevisan; Francesco Uboldi

2004-01-01T23:59:59.000Z

113

Aircraft Observations of Convective Systems in the Indian Ocean [EVS Event]  

NLE Websites -- All DOE Office Websites (Extended Search)

Aircraft Observations of Convective Systems in the Indian Ocean Aircraft Observations of Convective Systems in the Indian Ocean August 23, 2013 Speaker: Bradley Nicholas Guy National Research Council Postdoctoral Fellow NOAA National Severe Storms Laboratory Date: Friday, August 23, 2013 Time: 11:00 a.m. Location: Argonne National Laboratory TCS Building 240 Room 4301 In the DYNAMO (Dynamics of the Madden-Julian Oscillation) field experiment, a large number of measurement platforms were deployed to study environmental and convective cloud system characteristics of the Madden-Julian Oscillation (MJO) initiation region in the Indian Ocean. A mobile platform, the NOAA P-3 instrumented aircraft, sampled intense convective cloud systems, along with the surrounding environment. This presentation will explore the characteristics of mesoscale convective

114

{lambda}{alpha}DM: Observational constraints on unified dark matter with constant speed of sound  

SciTech Connect

We consider the hypothesis that dark energy and dark matter are the two faces of a single dark component, a unified dark matter (UDM) that we assume can be modeled by the affine equation of state (EoS) P=p{sub 0}+{alpha}{rho}, resulting in an effective cosmological constant {rho}{sub {lambda}}=-p{sub 0}/(1+{alpha}). The affine EoS arises from the simple assumption that the speed of sound is constant; it may be seen as an approximation to an unknown barotropic EoS P=P({rho}), and may as well represent the tracking solution for the dynamics of a scalar field with appropriate potential. Furthermore, in principle the affine EoS allows the UDM to be phantom. We constrain the parameters of the model, {alpha} and {omega}{sub {lambda}}, using data from a suite of different cosmological observations, and perform a comparison with the standard {lambda}CDM model, containing both cold dark matter and a cosmological constant. First considering a flat cosmology, we find that the UDM model with affine EoS fits the joint observations very well, better than {lambda}CDM, with best-fit values {alpha}=0.01{+-}0.02 and {omega}{sub {lambda}}=0.70{+-}0.04 (95% confidence intervals). The standard model (best-fit {omega}{sub {lambda}}=0.71{+-}0.04), having one less parameter, is preferred by a Bayesian model comparison. However, the affine EoS is at least as good as the standard model if a flat curvature is not assumed as a prior for {lambda}CDM. For the latter, the best-fit values are {omega}{sub K}=-0.02{sub -0.02}{sup +0.01} and {omega}{sub {lambda}}=0.71{+-}0.04, i.e. a closed model is preferred. A phantom UDM with affine EoS is ruled out well beyond 3{sigma}.

Balbi, Amedeo [Dipartimento di Fisica, Universita di Roma 'Tor Vergata', via della Ricerca Scientifica 1, 00133 Rome (Italy); INFN Sezione di Roma 'Tor Vergata', via della Ricerca Scientifica 1, 00133 Rome (Italy); Bruni, Marco [Dipartimento di Fisica, Universita di Roma 'Tor Vergata', via della Ricerca Scientifica 1, 00133 Rome (Italy); INFN Sezione di Roma 'Tor Vergata', via della Ricerca Scientifica 1, 00133 Rome (Italy); Institute of Cosmology and Gravitation, University of Portsmouth, Mercantile House, Portsmouth PO1 2EG (United Kingdom); Quercellini, Claudia [Dipartimento di Fisica, Universita di Roma 'Tor Vergata', via della Ricerca Scientifica 1, 00133 Rome (Italy)

2007-11-15T23:59:59.000Z

115

Regional observations of mining blasts by the GSETT-3 seismic monitoring system  

SciTech Connect

The cessation of testing of any nuclear explosive devices in all environments is the goal of the Comprehensive Test Ban Treaty. In order to assure compliance with such a treaty, an international monitoring system has been proposed. This system will include seismic, infrasound, hydroacoustic and radionuclide monitors located throughout the world. The goal of this system is the detection of any nuclear test. In preparation for this treaty, a series of monitoring system tests, focusing primarily on seismic observations, have been undertaken. The most recent of these tests, Group of Scientific Experts Technical Test Three (GSETT-3), provides valuable data for assessing future monitoring systems. During the course of this experiment, seismic events associated with earthquakes, nuclear explosions and mining explosions have been recorded. This presentation will discuss the numbers and types of mining explosions triggering the system, in a particular area. Possible implications for the mining industry will be explored.

Stump, B.W.; Pearson, D.C.

1996-12-31T23:59:59.000Z

116

Digital RAC with a disturbance observer for underwater vehicle-manipulator systems  

Science Conference Proceedings (OSTI)

Most control methods of underwater vehiclemanipulator systems (UVMS) are based on the computed torque method that is used for underwater robotic vehicles. We have proposed a resolved acceleration control (RAC) method for UVMS. In this article, we propose ... Keywords: Digital control, Disturbance observer, Manipulator, Underwater robot

Shinichi Sagara; Takashi Yatoh; Tomoaki Shimozawa

2010-12-01T23:59:59.000Z

117

Assimilation of Surface-Based Boundary Layer Profiler Observations during a Cool-Season Weather Event Using an Observing System Simulation Experiment. Part I: Analysis Impact  

Science Conference Proceedings (OSTI)

In this study, an Observing System Simulation Experiment was used to examine how the assimilation of temperature, water vapor, and wind profiles from a potential array of ground-based remote sensing boundary layer profiling instruments impacts the ...

Jason A. Otkin; Daniel C. Hartung; David D. Turner; Ralph A. Petersen; Wayne F. Feltz; Erik Janzon

2011-08-01T23:59:59.000Z

118

Sharp Observability Estimates for a System of Two Coupled Nonconservative Hyperbolic Equations  

SciTech Connect

We consider a system of two coupled nonconservative wave equations. For this system, we prove several observability estimates. Those observability estimates are sharp in the sense that they lead by duality to the controllability (exact or approximate) of the coupled system with a single control acting through one of the equations only while keeping the same controllability time as for a single equation. Existing results in the literature either require two controls, or in the case of a single control, they have a controllability time that blows up as the coupling parameter goes to zero. Our proofs rely on: (i) Carleman estimates, (ii) energy estimates and (iii) localizing arguments. The results obtained complement and improve, in some sense, earlier results while at the same time providing new uniqueness results.

Tebou, Louis, E-mail: teboul@fiu.edu [Florida International University, Department of Mathematics and Statistics (United States)

2012-10-15T23:59:59.000Z

119

Autonomous Observing and Control Systems for PAIRITEL, a 1.3m Infrared Imaging Telescope  

E-Print Network (OSTI)

The Peters Automated Infrared Imaging Telescope (PAIRITEL) is the first meter-class telescope operating as a fully robotic IR imaging system. Dedicated in October 2004, PAIRITEL began regular observations in mid-December 2004 as part of a 1.5 year commissioning period. The system was designed to respond without human intervention to new gamma-ray burst transients: this milestone was finally reached on November 9, 2005 but the telescope had a number of semi-automated sub-10 minute responses throughout early commissioning. When not operating in Target of Opportunity mode, PAIRITEL performs a number of queue scheduled transient monitoring campaigns. To achieve this level of automation, we have developed communicating tools to connect the various sub-systems: an intelligent queue scheduling database, run-time configurable observation sequence software, a data reduction pipeline, and a master state machine which monitors and controls all functions within and affecting the observatory.

J. S. Bloom; Dan L. Starr; Cullen H. Blake; M. F. Skrutskie; Emilio E. Falco

2005-11-30T23:59:59.000Z

120

Docket No. EO-05-01: Letter from Kevin Kolevar, Director Office of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

from Kevin Kolevar, Director Office of from Kevin Kolevar, Director Office of Electricity Delivery and Energy Reliability, to Mr. Robert Driscoll, CEO Mirant Mid-Atlantic, LLC Docket No. EO-05-01: Letter from Kevin Kolevar, Director Office of Electricity Delivery and Energy Reliability, to Mr. Robert Driscoll, CEO Mirant Mid-Atlantic, LLC Docket No. EO-05-01: On December 20, 2005, the Secretary of Energy issued DOE Order No. 202-05-3, pursuant to section 202(c) of the Federal Power Act, 16 U.S.c. § 824a(c), ordering the operation of the Potomac River Generating Station (the Plant) owned by Mirant Potomac River, LLC (Mirant). DOE has determined that the operation of the Plant under Option A pursuant to DOE's January 4, 2006 instructions does not provide an adequate level of electric reliability to the Central D.C. area under current circumstances. Operation

Note: This page contains sample records for the topic "observing system eos" 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.


121

EO 12898: Environmental Justice in Minority Populations and Low-Income  

NLE Websites -- All DOE Office Websites (Extended Search)

2898: Environmental Justice in Minority Populations and 2898: Environmental Justice in Minority Populations and Low-Income Populations EO 12898: Environmental Justice in Minority Populations and Low-Income Populations To focus Federal attention on the environmental and human health conditions in minority communities and low-income communities with the goal of achieving environmental justice. That order is also intended to promote nondiscrimination in Federal programs substantially affecting human health and the environment, and to provide minority communities and low-income communities access to public information on, and an opportunity for public participation in, matters relating to human health or the environment. EO 12898: Environmental Justice in Minority Populations and Low-Income Populations More Documents & Publications

122

To: Mansueti, Lawrence Subject: DCPSC Complaint DOE Docket #EO-05-01  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Sent: Tuesday, November 15, 2005 6:18 PM To: Mansueti, Lawrence Subject: DCPSC Complaint DOE Docket #EO-05-01 Attached please find our letter regarding the DCPSC complaint that we ask you to please file for consideration in DOE's Docket #EO-05-01. Thank you. Elizabeth Chimento and Poul Hertel 1200 North Pitt Street Alexandria, Virginia November 14, 2005 Joseph T. Kelliher, Chairman Federal Energy Regulatory Commission 888 First Street, N.E. Washington, D.C. 20426 Re: District of Columbia Public Service Commission Emergency Petition and Complaint Docket No. EL05-145-000 Dear Chairman Kelliher: In the continuing dialogue regarding the Potomac River Generating Station, it is

123

Radar Observations of Convective System Variability in Relationship to African Easterly Waves during the 2006 AMMA Special Observing Period  

E-Print Network (OSTI)

A radar-based analysis of the structure, motion, and rainfall variability of westward-propagating squall-line mesoscale convective systems (SLMCSs) in Niamey, Niger, during the African Monsoon Multidisciplinary Activities ...

Williams, Earle R.

124

Radar Observations of Convective System Variability in Relationship to African Easterly Waves during the 2006 AMMA Special Observing Period  

Science Conference Proceedings (OSTI)

A radar-based analysis of the structure, motion, and rainfall variability of westward-propagating squall-line mesoscale convective systems (SLMCSs) in Niamey, Niger, during the African Monsoon Multidisciplinary Activities (AMMA) 2006 special ...

Rosana Nieto Ferreira; Thomas Rickenbach; Nick Guy; Earle Williams

2009-12-01T23:59:59.000Z

125

Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models  

SciTech Connect

Eighty planetary systems of two or more planets are known to orbit stars other than the Sun. For most, the data can be sufficiently explained by non-interacting Keplerian orbits, so the dynamical interactions of these systems have not been observed. Here we present 4 sets of lightcurves from the Kepler spacecraft, which each show multiple planets transiting the same star. Departure of the timing of these transits from strict periodicity indicates the planets are perturbing each other: the observed timing variations match the forcing frequency of the other planet. This confirms that these objects are in the same system. Next we limit their masses to the planetary regime by requiring the system remain stable for astronomical timescales. Finally, we report dynamical fits to the transit times, yielding possible values for the planets masses and eccentricities. As the timespan of timing data increases, dynamical fits may allow detailed constraints on the systems architectures, even in cases for which high-precision Doppler follow-up is impractical.

Fabrycky, Daniel C.; /UC, Santa Cruz; Ford, Eric B.; /Florida U.; Steffen, Jason H.; /Fermilab; Rowe, Jason F.; /SETI Inst., Mtn. View /NASA, Ames; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Moorhead, Althea V.; /Florida U.; Batalha, Natalie M.; /San Jose State U.; Borucki, William J.; /NASA, Ames; Bryson, Steve; /NASA, Ames; Buchhave, Lars A.; /Bohr Inst. /Copenhagen U.; Christiansen, Jessie L.; /SETI Inst., Mtn. View /NASA, Ames /Caltech

2012-01-01T23:59:59.000Z

126

Evaluating the Cloud Cover Forecast of NCEP Global Forecast System with Satellite Observation  

E-Print Network (OSTI)

To assess the quality of daily cloud cover forecast generated by the operational global numeric model, the NCEP Global Forecast System (GFS), we compose a large sample with outputs from GFS model and satellite observations from the International Satellite Cloud Climatology Project (ISCCP) in the period of July 2004 to June 2008, to conduct a quantitative and systematic assessment of the performance of a cloud model that covers a relatively long range of time, basic cloud types, and in a global view. The evaluation has revealed the goodness of the model forecast, which further illustrates our completeness on understanding cloud generation mechanism. To quantity the result, we found a remarkably high correlation between the model forecasts and the satellite observations over the entire globe, with mean forecast error less than 15% in most areas. Considering a forecast within 30% difference to the observation to be a "good" one, we find that the probability for the GFS model to make good forecasts varies between...

Ye, Quanzhi

2011-01-01T23:59:59.000Z

127

Connecting neutron star observations to the high density equation of state of quasi-particle model  

E-Print Network (OSTI)

The observation of $1.97\\pm0.04$ solar-mass neutron-like star gives constraint on the equation of state (EOS) of cold, condensed matter. In this paper, the EOS for both pure quark star and hybrid star with a quark core described by quasi-particle model are considered. The parameters of quasi-particle model which affect the mass of both quark star and hybrid star can be constrained by the observation.

Yan Yan; Jing Cao; Xin-Lian Luo; Wei-Min Sun; Hongshi Zong

2012-12-08T23:59:59.000Z

128

Multiwavelength optical observations of the chromospherically active binary system MS Ser  

E-Print Network (OSTI)

We present here a continuation of our ongoing project of multiwavelength optical observations aimed at studying the chromosphere of active binary systems using the information provided for several optical spectroscopic features that are formed at different heights in the chromosphere (Montes et al. 1997, 1998; Sanz-Forcada et al. 1998). In this contribution we focus our study on the preliminar analysis of the active binary system MS Ser. We have taken H$\\alpha$ and H$\\beta$ spectra in 1995 with the Coude Spectrograph at 2.2m telescope in Calar Alto, and high resolution SOFIN echelle spectra (covering H_alpha, H_beta, Na I D_{1} and D_{2}, He I D_{3}, Mg I b triplet, Ca II H & K, and Ca II infrared triplet lines) in 1998 with the 2.56m Nordic Optical Telescope (NOT) in La Palma. A strong emission in the Ca II H & K and Ca II IRT lines, coming from the primary component (recently classified as K2IV) is observed. One of the Ca II H & K spectra (at orbital phase near quadrature) reveals that the secondary (G8V) also exhibit a small emission. A near complete and variable filling-in of the H_alpha and H_beta is obtained after the application of the spectral subtraction technique. We detect also some seasonal variations between these two observing runs and in comparation with our previous Ca II H & K observations taken in 1993 (Montes et al. 1995).

J. Sanz-Forcada; D. Montes; M. J. Fernandez-Figueroa; E. De Castro; M. Cornide

1998-09-09T23:59:59.000Z

129

Sensor Configuration Selection for Discrete-Event Systems under Unreliable Observations  

SciTech Connect

Algorithms for counting the occurrences of special events in the framework of partially-observed discrete event dynamical systems (DEDS) were developed in previous work. Their performances typically become better as the sensors providing the observations become more costly or increase in number. This paper addresses the problem of finding a sensor configuration that achieves an optimal balance between cost and the performance of the special event counting algorithm, while satisfying given observability requirements and constraints. Since this problem is generally computational hard in the framework considered, a sensor optimization algorithm is developed using two greedy heuristics, one myopic and the other based on projected performances of candidate sensors. The two heuristics are sequentially executed in order to find best sensor configurations. The developed algorithm is then applied to a sensor optimization problem for a multiunit- operation system. Results show that improved sensor configurations can be found that may significantly reduce the sensor configuration cost but still yield acceptable performance for counting the occurrences of special events.

Wen-Chiao Lin; Tae-Sic Yoo; Humberto E. Garcia

2010-08-01T23:59:59.000Z

130

Developing an Operational, Surface-Based, GPS, Water Vapor Observing System for NOAA: Network Design and Results  

Science Conference Proceedings (OSTI)

The need for a reliable, low-cost observing system to measure water vapor in the atmosphere is incontrovertible. Experiments have shown the potential for using Global Positioning System (GPS) receivers to measure total precipitable water vapor ...

Daniel E. Wolfe; Seth I. Gutman

2000-04-01T23:59:59.000Z

131

Wind Measurement and Archival under the Automated Surface Observing System (ASOS): User Concerns and Opportunity for Improvement  

Science Conference Proceedings (OSTI)

The National Weather Service, as a part of its modernization effort, is implementing the Automated Surface Observing System (ASOS). Much discussion has occurred about various aspects of ASOS versus the current system of manual and automated ...

Mark D. Powell

1993-04-01T23:59:59.000Z

132

Development of a Manufacturing Process for High-Precision Cu EOS Targets  

SciTech Connect

This document describes the development of a manufacturing process and the production of Cu EOS targets. The development of a manufacturing process for these targets required a great deal of research, because the specifications for the targets required a level of precision an order of magnitude beyond Target Fabrication's capabilities at the time. Strict limitations on the dimensions of the components and the interfaces between them required research efforts to develop bonding and deposition processes consistent with a manufacturing plan with a dimensional precision on the order of 0.1 {micro}m. Several months into this effort, the specifications for the targets were relaxed slightly as a result of discussions between the Target Fabrication Group and the physicists. The level of precision required for these targets remained an order of magnitude beyond previous capabilities, but the changes made it possible to manufacture targets to the specifications. The development efforts and manufacturing processes described in this document successfully produced a complete Cu EOS target that satisfied all of the fabrication and metrology specifications.

Bono, M J; Castro, C; Hibbard, R L

2006-01-12T23:59:59.000Z

133

CLARREO shortwave observing system simulation experiments of the twenty-first century: Simulator design and implementation  

Science Conference Proceedings (OSTI)

Projected changes in the Earth system will likely be manifested in changes in reflected solar radiation. This paper introduces an operational Observational System Simulation Experiment (OSSE) to calculate the signals of future climate forcings and feedbacks in top-of-atmosphere reflectance spectra. The OSSE combines simulations from the Intergovernmental Panel on Climate Change (IPCC) Fourth Assessment Report for the NCAR Community Climate System Model (CCSM) with the MODTRAN radiative transfer code to calculate reflectance spectra for simulations of current and future climatic conditions over the 21st century. The OSSE produces narrowband reflectances and broadband fluxes, the latter of which have been extensively validated against archived CCSM results. The shortwave reflectance spectra contain atmospheric features including signals from water vapor, liquid and ice clouds, and aerosols. The spectra are also strongly influenced by the surface bidirectional reflectance properties of predicted snow and sea ice and the climatological seasonal cycles of vegetation. By comparing and contrasting simulated reflectance spectra based on emissions scenarios with increasing projected and fixed present-day greenhouse gas and aerosol concentrations, we find that prescribed forcings from increases in anthropogenic sulfate and carbonaceous aerosols are detectable and are spatially confined to lower latitudes. Also, changes in the intertropical convergence zone and poleward shifts in the subsidence zones and the storm tracks are all detectable along with large changes in snow cover and sea ice fraction. These findings suggest that the proposed NASA Climate Absolute Radiance and Refractivity Observatory (CLARREO) mission to measure shortwave reflectance spectra may help elucidate climate forcings, responses, and feedbacks.

Feldman, D.R.; Algieri, C.A.; Ong, J.R.; Collins, W.D.

2011-04-01T23:59:59.000Z

134

The Effect of Atmospheric Water Vapor on Neutron Count in the Cosmic-Ray Soil Moisture Observing System  

Science Conference Proceedings (OSTI)

The cosmic-ray method for measuring soil moisture, used in the COsmic-ray Soil Moisture Observing System (COSMOS), relies on the exceptional ability of hydrogen to moderate fast neutrons. Sources of hydrogen near the ground, other than soil ...

R. Rosolem; W. J. Shuttleworth; M. Zreda; T. E. Franz; X. Zeng; S. A. Kurc

135

Comparing the Convective Structure and Microphysics in Two Sahelian Mesoscale Convective Systems: Radar Observations and CRM Simulations  

Science Conference Proceedings (OSTI)

Two mesoscale convective systems (MCSs) observed during the African Monsoon Multidisciplinary Analyses (AMMA) experiment are simulated using the three-dimensional (3D) Goddard Cumulus Ensemble model. This study was undertaken to determine the ...

Nick Guy; Xiping Zeng; Steven A. Rutledge; Wei-Kuo Tao

2013-02-01T23:59:59.000Z

136

Electrification of Stratiform Regions in Mesoscale Convective Systems. Part I: An Observational Comparison of Symmetric and Asymmetric MCSs  

Science Conference Proceedings (OSTI)

The kinematic, microphysical, and electrical structures of two mesoscale convective systems (MCSs) observed during the 1991 Cooperative Oklahoma Profiler Studies (COPS91) experiment are analyzed. Profiles of the vertical electric field structure ...

Terry J. Schuur; Steven A. Rutledge

2000-07-01T23:59:59.000Z

137

Accuracy of Diagnostic Heat and Moisture Budgets Using SESAME-79 Field Data as Revealed by Observing System Simulation Experiments  

Science Conference Proceedings (OSTI)

The accuracy of diagnostic heat and moisture budgets using the AVE-SESAME 1979 data is investigated through a series of observing system simulation experiments. The four-dimensional (including time) data set provided by a mesoscale model is used ...

Ying-Hwa Kuo; Richard A. Anthes

1984-08-01T23:59:59.000Z

138

The Effect of Atmospheric Water Vapor on Neutron Count in the Cosmic-Ray Soil Moisture Observing System  

Science Conference Proceedings (OSTI)

The cosmic-ray method for measuring soil moisture, used in the Cosmic-Ray Soil Moisture Observing System (COSMOS), relies on the exceptional ability of hydrogen to moderate fast neutrons. Sources of hydrogen near the ground, other than soil ...

R. Rosolem; W. J. Shuttleworth; M. Zreda; T. E. Franz; X. Zeng; S. A. Kurc

2013-10-01T23:59:59.000Z

139

Performance Evaluation for a Lightning Location System Based on Observations of Artificially Triggered Lightning and Natural Lightning Flashes  

Science Conference Proceedings (OSTI)

Performance evaluation for the lightning location system (LLS) of the power grid in Guangdong Province, China, was conducted based on observation data of the triggered lightning flashes obtained in Conghua, Guangzhou, during 200711 and natural ...

Luwen Chen; Yijun Zhang; Weitao Lu; Dong Zheng; Yang Zhang; Shaodong Chen; Zhihui Huang

2012-12-01T23:59:59.000Z

140

SMA Observations of Class 0 Protostars: A High-Angular Resolution Survey of Protostellar Binary Systems  

E-Print Network (OSTI)

We present high angular resolution 1.3 mm and 850 um dust continuum data obtained with the Submillimeter Array toward 33 Class 0 protostars in nearby clouds (distance < 500 pc), which represents so far the largest survey toward protostellar binary/multiple systems. The median angular resolution in the survey is 2.5 arcsec, while the median linear resolution is approximately 600 AU. Compact dust continuum emission is observed from all sources in the sample. Twenty-one sources in the sample show signatures of binarity/multiplicity, with separations ranging from 50 to 5000 AU. The numbers of singles, binaries, triples, and quadruples in the sample are 12, 14, 5, and 2, respectively. The derived multiplicity frequency (MF) and companion star fraction (CSF) for Class 0 protostars are 0.64+/-0.08 and 0.91+/-0.05, respectively, with no correction for completeness. The derived MF and CSF in this survey are approximately two times higher than the values found in the binary surveys toward Class I YSOs, and approxima...

Chen, Xuepeng; Zhang, Qizhou; Bourke, Tyler L; Launhardt, Ralf; Jorgensen, Jes K; Lee, Chin-Fee; Foster, Jonathan B; Dunham, Michael M; Pineda, Jaime E; Henning, Thomas

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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
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141

Chemical Source Inversion Using Assimilated Constituent Observations in an Idealized Two-Dimensional System  

Science Conference Proceedings (OSTI)

A source inversion technique for chemical constituents is presented that uses assimilated constituent observations rather than directly using the observations. The method is tested with a simple model problem, which is a two-dimensional Fourier...

Andrew Tangborn; Robert Cooper; Steven Pawson; Zhibin Sun

2009-09-01T23:59:59.000Z

142

A Prototype WRF-Based Ensemble Data Assimilation System for Dynamically Downscaling Satellite Precipitation Observations  

Science Conference Proceedings (OSTI)

In the near future, the Global Precipitation Measurement (GPM) mission will provide precipitation observations with unprecedented accuracy and spatial/temporal coverage of the globe. For hydrological applications, the satellite observations need ...

Dusanka Zupanski; Sara Q. Zhang; Milija Zupanski; Arthur Y. Hou; Samson H. Cheung

2011-02-01T23:59:59.000Z

143

Geoscience Laser Altimeter System (GLAS) on the ICESat Mission: Science measurement performance since launch, Eos Trans  

E-Print Network (OSTI)

made over 904 million measurements of the Earth surface and atmosphere through June 2005. During its first seven operational campaigns it has vertically sampled the Earths global surface and atmosphere on more than 3600 orbits with vertical resolutions approaching 3 cm. This paper summarizes the on-orbit measurement performance of

James B. Abshire; Xiaoli Sun; Haris Riris; J. Marcos Sirota; Jan F. Mcgarry; Steve Palm; Donghui Yi; Peter Liiva; X. Sun; H. Riris; J. M. Sirota; J. F. Mcgarry; S. Palm; D. Yi; P. Liiva

2004-01-01T23:59:59.000Z

144

Remote Sensing May Provide Unprecedented Hydrological Data http://www.agu.org/eos_elec, 1999 American Geophysical Union.  

E-Print Network (OSTI)

Remote Sensing May Provide Unprecedented Hydrological Data http://www.agu.org/eos_elec, © 1999 American Geophysical Union. Remote Sensing May Provide Unprecedented Hydrological Data -- Randal D. Koster, Agricultural Research Service, U.S. Department of Agriculture, Beltsville, Md., USA Use of remote sensing

Houser, Paul R.

145

An Observation System Used To Study the Marine Boundary Layer Over the Bay of Bengal During Summer Monex 79  

Science Conference Proceedings (OSTI)

An observation system used to study the marine boundary layer over the Bay of Bengal at Digha Beach, West Bengal, India, as part of the International Monsoon Experiments (MONEX 79) is described in this paper. It was a portable system that was ...

S. SethuRaman; P. Michael; W. A. Tuthill; J. McNeil

1980-10-01T23:59:59.000Z

146

Spacetime thermodynamics and subsystem observables in a kinetically constrained model of glassy systems  

E-Print Network (OSTI)

Spacetime thermodynamics and subsystem observables in aconcept of spacetime thermodynamics [3] is illus- trated indiscussion of space- time thermodynamics by considering the

Jack, Robert L.; Garrahan, Juan P.; Chandler, David

2006-01-01T23:59:59.000Z

147

Interactions between a Developing Mesoscale Convective System and Its Environment. Part I: Observational Analysis  

Science Conference Proceedings (OSTI)

This paper is the first in a two part series in which the interactions between a growing mesoscale convective system (MCS) and its surrounding environment are investigated. The system studied here developed in northeastern Colorado on 19 July ...

Jason E. Nachamkin; Ray L. McAnelly; William R. Cotton

2000-05-01T23:59:59.000Z

148

Multiresolution Ensemble Forecasts of an Observed Tornadic Thunderstorm System. Part II: Storm-Scale Experiments  

Science Conference Proceedings (OSTI)

In Part I, the authors used a full physics, nonhydrostatic numerical model with horizontal grid spacing of 24 km and nested grids of 6- and 3-km spacing to generate the ensemble forecasts of an observed tornadic thunderstorm complex. The ...

Fanyou Kong; Kelvin K. Droegemeier; Nicki L. Hickmon

2007-03-01T23:59:59.000Z

149

Airborne Dual-Doppler Observations of an Intense Frontal System Approaching the Pacific Northwest Coast  

Science Conference Proceedings (OSTI)

Airborne Doppler radar data, collected off the Pacific Northwest coast by a NOAA WP-3D Orion aircraft over an 8-h period on 8 December 1993 during the Coastal Observations and Simulations with Topography experiment, reveal the mesoscale structure ...

Scott A. Braun; Robert A. Houze Jr.; Bradley F. Smull

1997-12-01T23:59:59.000Z

150

Comparing Local Analysis and Prediction System (LAPS) Assimilations with Independent Observations  

Science Conference Proceedings (OSTI)

Meteorological forcing data are necessary to drive many of the spatial models used to simulate atmospheric, biological, and hydrological processes. Unfortunately, many domains lack sufficient meteorological data and available point observations ...

Christopher A. Hiemstra; Glen E. Liston; Roger A. Pielke Sr.; Daniel L. Birkenheuer; Steven C. Albers

2006-12-01T23:59:59.000Z

151

High-Resolution Passive Microwave Observations of Convective Systems over the Tropical Pacific Ocean  

Science Conference Proceedings (OSTI)

This paper presents high-resolution passive microwave measurements obtained in the western Pacific warm pool region. These measurements represent the most comprehensive such observations of convection over the tropical oceans to date, and were ...

Gary McGaughey; Edward J. Zipser; Roy W. Spencer; Robbie E. Hood

1996-11-01T23:59:59.000Z

152

Forecast evaluation of an Observing System Simulation Experiment assimilating both radar and satellite data  

Science Conference Proceedings (OSTI)

In part 1 of this study, Jones et al. (2013a) compared the relative skill of assimilating simulated radar reflectivity and radial velocity observations and satellite 6.95 ?m brightness temperatures (TB) and found that both improved analyses of ...

Thomas A. Jones; Jason A. Otkin; David J. Stensrud; Kent Knopfmeier

153

The Adequacy of Observing Systems in Monitoring the Atlantic Meridional Overturning Circulation and North Atlantic Climate  

Science Conference Proceedings (OSTI)

The Atlantic meridional overturning circulation (AMOC) has an important influence on climate, and yet adequate observations of this circulation are lacking. Here, the authors assess the adequacy of past and current widely deployed routine ...

S. Zhang; A. Rosati; T. Delworth

2010-10-01T23:59:59.000Z

154

Detecting Climate Variations and Change: New Challenges for Observing and Data Management Systems  

Science Conference Proceedings (OSTI)

Several essential aspects of weather observing and the management of weather data are discussed as related to improving knowledge of climate variations and change in the surface boundary layer and the resultant consequences for socioeconomic and ...

Thomas R. Karl; Robert G. Quayle; Pavel Ya Groisman

1993-08-01T23:59:59.000Z

155

Inclusion of Linearized Moist Physics in NASAs Goddard Earth Observing System Data Assimilation Tools  

Science Conference Proceedings (OSTI)

Inclusion of moist physics in the linearized version of a weather forecast model is beneficial in terms of variational data assimilation. Further it improves the capability of important tools, such as adjoint based observation impacts and ...

Daniel Holdaway; Ronald Errico; Ronald Gelaro; Jong G. Kim

156

Properties of Tropical Convection Observed by Millimeter-Wave Radar Systems  

Science Conference Proceedings (OSTI)

This paper describes the results of analysis of over 825 000 profiles of millimeter-wave radar (MWR) reflectivities primarily collected by zenith-pointing surface radars observing tropical convection associated with various phases of activity of ...

Graeme L. Stephens; Norman B. Wood

2007-03-01T23:59:59.000Z

157

A Study of the Remote Control for the East China Sea Seafloor Observation System  

Science Conference Proceedings (OSTI)

Seafloor observatories enable long-term, continuous, real-time, weather-independent, and multidisciplinary scientific observation and research that will promise major breakthroughs in ocean sciences. China has started to establish a seafloor ...

Yang Yu; Huiping Xu; Changwei Xu; Rufu Qin

2012-08-01T23:59:59.000Z

158

Upper ocean processes observed by underwater gliders in the California Current System  

E-Print Network (OSTI)

1980; Chelton and Davis, 1982; Lynn and Bograd , 2002].Lynn and Simpson, 1987, 1990; Todd et al. , 2011a], eddies [DavisLynn and Simpson, 1987; Bray et al. , 1999]. Recent velocity observations [Davis

Todd, Robert E.

2011-01-01T23:59:59.000Z

159

Observing the evolution of a quantum system that does not evolve  

E-Print Network (OSTI)

This article deals with the problem of gathering information on the time evolution of a single metastable quantum system whose evolution is impeded by the quantum Zeno effect. It has been found it is in principle possible to obtain some information on the time evolution and, depending on the specific system, even to measure its average decay rate, even if the system does not undergo any evolution at all.

Simone De Liberato

2007-05-16T23:59:59.000Z

160

Cloud and Radiative Characteristics of Tropical Deep Convective Systems in Extended Cloud Objects from CERES Observations  

Science Conference Proceedings (OSTI)

The physical and radiative properties of tropical deep convective systems for the period from January to August 1998 are examined with the use of Clouds and the Earths Radiant Energy System Single-Scanner Footprint (SSF) data from the Tropical ...

Zachary A. Eitzen; Kuan-Man Xu; Takmeng Wong

2009-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


161

The Joint Modes of the Coupled Atmosphere-Ocean System Observed from 1967 to 1986  

Science Conference Proceedings (OSTI)

Two aspects of the principal oscillation pattern (POP) analysis are used to study the large-scale modes of the coupled atmosphereocean system. First, P0Ps can be considered as the normal modes of the system; one way of studying these normal ...

Jin-Song Xu

1993-05-01T23:59:59.000Z

162

The impact of covariance localization for radar data on enKF analyses of a developing MCS: Observing system simulation experiments  

Science Conference Proceedings (OSTI)

Several observing system simulation experiments (OSSEs) were performed to assess the impact of covariance localization of radar data on ensemble Kalman filter (EnKF) analyses of a developing convective system. Simulated WSR-88D radar observations ...

Ryan A. Sobash; David J. Stensrud

163

Microsoft PowerPoint - 08 Lawrence 2010 DOE PM Workshop_EO 13514_03-01-10_presentation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Executive Order 13514 p Executive Order 13514 p g Federal Leadership in Environmental, Energy, and Economic Performance f At the Department of Energy Andrew Lawrence Office of Nuclear Safety, Quality y, Q y Assurance, and Environment 1 I. E.O. 13514: Goals Goals Requirements Deadlines Deadlines II. DOE's Implementation Strategy Governance Model Strategic Sustainability Performance Plan III. Meeting E.O. Goals C DOE S Current DOE Status Key issues for Project Managers 2 Overview "T t bli h i t t d t t t d "To establish an integrated strategy towards sustainability in the Federal Government and make reduction of greenhouse gas (GHG) emissions a priority for agencies " 3 Executive Order 13514 (GHG) emissions a priority for agencies."

164

The Integrated Sounding System: Description and Preliminary Observations from TOGA COARE  

Science Conference Proceedings (OSTI)

An Integrated Sounding System (ISS) that combines state-of- the-art remote and in situ sensors into a single transportable facility has been developed jointly by the National Center for Atmospheric Research (NCAR) and the Aeronomy laboratory of ...

David Parsons; Walter Dabberdt; Harold Cole; Terrence Hock; Charles Martin; Anne-Leslie Barrett; Erik Miller; Michael Spowart; Michael Howard; Warner Ecklund; David Carter; Kenneth Gage; John Wilson

1994-04-01T23:59:59.000Z

165

The Effect of Environmental Conditions on Tropical Deep Convective Systems Observed from the TRMM Satellite  

Science Conference Proceedings (OSTI)

This study uses measurements of radiation and cloud properties taken between January and August 1998 by three Tropical Rainfall Measuring Mission (TRMM) instruments, the Clouds and the Earths Radiant Energy System (CERES) scanner, the TRMM ...

Bing Lin; Bruce A. Wielicki; Patrick Minnis; Lin Chambers; Kuan-Man Xu; Yongxiang Hu; Alice Fan

2006-11-01T23:59:59.000Z

166

On possibility to observe new fundamental forces in open quantum systems  

E-Print Network (OSTI)

A possibility and peculiarities of registration of new fundamental forces in open quantum systems are discussed. As a possible example, variations of decay rates of radioactive elements reported in scientific literature are considered in detail.

B. F. Kostenko; M. Z. Yuriev

2006-05-12T23:59:59.000Z

167

Mobile Integrated Profiler System (MIPS) Observations of Low-Level Convergent Boundaries during IHOP  

Science Conference Proceedings (OSTI)

Characteristics of convergent boundary zones (CBZs) sampled by the Mobile Integrated Profiling System (MIPS) during the 2002 International H2O Project (IHOP_2002) are presented. The MIPS sensors (915-MHz wind profiler, 12-channel microwave ...

Haldun Karan; Kevin Knupp

2006-01-01T23:59:59.000Z

168

Multiwavelength Observations of a Developing Cloud System: The FIRE II 26 November 1991 Case Study  

Science Conference Proceedings (OSTI)

Simultaneous multiwavelength measurements of a developing cloud system were obtained by NOAA Doppler lidar, Doppler radar, Fourier transform infrared interferometer, and microwave and infrared radiometers on 26 November 1991. The evolution of the ...

J. M. Intrieri; W. L. Eberhard; T. Uttal; J. A. Shaw; J. B. Snider; Y. Han; B. W. Orr; S. Y. Matrosov

1995-12-01T23:59:59.000Z

169

The University of South Alabama Mesonet and Coastal Observing System: A Technical and Statistical Overview  

Science Conference Proceedings (OSTI)

The University of South Alabama Mesonet consists of 26 sites across the north-central Gulf of Mexico coast. Although the original purpose of the mesonet was monitoring landfalling tropical systems, meteorological data are collected and ...

Sytske K. Kimball; Madhuri S. Mulekar; Shailer Cummings; Jack Stamates

2010-09-01T23:59:59.000Z

170

Characteristics of Vertical Velocity Cores in Different Convective Systems Observed over Gadanki, India  

Science Conference Proceedings (OSTI)

The Indian mesospherestratospheretroposphere (MST) radar measurements during the passage of 60 convective systems are used to study the vertical air velocity (w) characteristics of tropical convection. The up- and downdraft cores and various ...

K. N. Uma; T. Narayana Rao

2009-03-01T23:59:59.000Z

171

First Report of Nectria galligena Causing European Canker of Apple Trees in Ontario. A. R. Biggs, Agriculture Canada Research Station, Vineland Station, Ontario LOR 2EO. Plant  

E-Print Network (OSTI)

First Report of Nectria galligena Causing European Canker of Apple Trees in Ontario. A. R. Biggs, Agriculture Canada Research Station, Vineland Station, Ontario LOR 2EO. Plant Disease 69:1007, 1985. Accepted

Biggs, Alan R.

172

OBSERVE: Occupancy-Based System for Efficient Reduction of HVAC Energy  

E-Print Network (OSTI)

office build- ings [9]. This type of system is often used since it is able to heat and cool areas while - Merced {verickson,mcarreira-perpinan,acerpa}@ucmerced.edu ABSTRACT Heating, cooling and ventilation uncomfortable [13]. If not properly calibrated, these sensors can also be inaccurate [13]. Electrical loads have

Carreira-Perpiñán, Miguel Á.

173

Stochastic Modeling and Optimization for Robust Power Management in a Partially Observable System  

E-Print Network (OSTI)

or hard disk. The power management hardware/software monitors the state transition in the system and issues state-transition commands to the SP. Similar to [2] and [3], we assume that the power managed generate service request at different rates. The state transition probability can be obtained by software

Qiu, Qinru

174

Operational Systems for Observing the Lower Atmosphere: Importance of Data Sampling and Archival Procedures  

Science Conference Proceedings (OSTI)

A brief field project was conducted during July 1988 to assess the potential for Next Generation Weather Radar (NEXRAD), 404-MHz radar wind profilers, and digital sounding systems to monitor the low-level wind field during clear-air conditions. ...

David J. Stensrud; Michael H. Jain; Kenneth W. Howard; Robert A. Maddox

1990-12-01T23:59:59.000Z

175

An Observational Study of Mesoscale Convective Systems with Heavy Rainfall over the Korean Peninsula  

Science Conference Proceedings (OSTI)

A heavy rainfall event induced by mesoscale convective systems (MCSs) occurred over the middle Korean Peninsula from 25 to 27 July 1996. This heavy rainfall caused a large loss of life and property damage as a result of flash floods and ...

Hyung Woo Kim; Dong Kyou Lee

2006-04-01T23:59:59.000Z

176

DEVELOPMENT OF A COASTAL MARGIN OBSERVATION AND ASSESSMENT SYSTEM (CMOAS) TO CAPTURE THE EPISODIC EVENTS IN A SHALLOW BAY  

E-Print Network (OSTI)

Corpus Christi Bay (TX, USA) is a shallow wind-driven bay which is designated as a National Estuary due to its impact on the economy. But this bay experiences periodic hypoxia (dissolved oxygen <2 mg/l) which threatens aerobic aquatic organisms. Development of the Coastal Margin Observation and Assessment System (CMOAS) through integration of real-time observations with numerical modeling helps to understand the processes causing hypoxia in this energetic bay. CMOAS also serves as a template for the implementation of observational systems in other dynamic ecosystems for characterizing and predicting other episodic events such as harmful algal blooms, accidental oil spills, sediment resuspension events, etc. State-of-the-art sensor technologies are involved in real-time monitoring of hydrodynamic, meteorological and water quality parameters in the bay. Three different platform types used for the installation of sensor systems are: 1) Fixed Robotic, 2) Mobile, and 3) Remote. An automated profiler system, installed on the fixed robotic platform, vertically moves a suite of in-situ sensors within the water column for continuous measurements. An Integrated Data Acquisition, Communication and Control system has been configured on our mobile platform (research vessel) for the synchronized measurements and real-time visualization of hydrodynamic and water quality parameters at greater spatial resolution. In addition, a high frequency (HF) radar system has been installed on remote platforms to generate surface current maps for Corpus Christi (CC) Bay and its offshore area. This data is made available to stakeholders in real-time through the development of cyberinfrastructure which includes establishment of communication network, software development, web services, database development, etc. Real-time availability of measured datasets assists in implementing an integrated sampling scheme for our monitoring systems installed at different platforms. With our integrated system, we were able to capture evidence of an hypoxic event in Summer 2007. Data collected from our monitoring systems are used to drive and validate numerical models developed in this study. The analysis of observational datasets and developed 2-D hydrodynamic model output suggests that a depth-integrated model is not able to capture the water current structure of CC Bay. Also, the development of a threedimensional mechanistic dissolved oxygen model and a particle aggregation transport model (PAT) helps to clarify the critical processes causing hypoxia in the bay. The various numerical models and monitoring systems developed in this study can serve as valuable tools for the understanding and prediction of various episodic events dominant in other dynamic ecosystems.

Islam, Mohammad S.

2009-05-01T23:59:59.000Z

177

Can observations inside the Solar System reveal the gravitational properties of the quantum vacuum?  

E-Print Network (OSTI)

The understanding of the gravitational properties of the quantum vacuum might be the next scientific revolution.It was recently proposed that the quantum vacuum contains the virtual gravitational dipoles; we argue that this hypothesis might be tested within the Solar System. The key point is that quantum vacuum ("enriched" with the gravitational dipoles) induces a retrograde precession of the perihelion. It is obvious that this phenomenon might eventually be revealed by more accurate studies of orbits of planets and orbits of the artificial Earth satellites. However, we suggest that potentialy the best "laboratory" for the study of the gravitational properties of the quantum vacuum is the Dwarf Planet Eris and its satellite Dysnomia; the distance of nearly 100AU makes it the unique system in which the precession of the perihelion of Dysnomia (around Eris) is strongly dominated by the quantum vacuum.

Dragan Slavkov Hajdukovic

2012-10-28T23:59:59.000Z

178

Sequential Window Diagnoser for Discrete-Event Systems Under Unreliable Observations  

SciTech Connect

This paper addresses the issue of counting the occurrence of special events in the framework of partiallyobserved discrete-event dynamical systems (DEDS). Developed diagnosers referred to as sequential window diagnosers (SWDs) utilize the stochastic diagnoser probability transition matrices developed in [9] along with a resetting mechanism that allows on-line monitoring of special event occurrences. To illustrate their performance, the SWDs are applied to detect and count the occurrence of special events in a particular DEDS. Results show that SWDs are able to accurately track the number of times special events occur.

Wen-Chiao Lin; Humberto E. Garcia; David Thorsley; Tae-Sic Yoo

2009-09-01T23:59:59.000Z

179

Dual-Doppler observations of the formative stage of an asymmetric squall line system  

E-Print Network (OSTI)

The objective of this study is to document and explain the formation of a large asymmetric squall line system. Despite having a precipitation pattern similar to the conceptual model of an asymmetric squall line, the development and evolution of the storm system was considerably different from previous asymmetric squall line studies. Dual-Doppler data collected on 24-25 May 1997 during the TEXACAL field campaign revealed that the asymmetric squall line developed from the merging of two distinct squall lines oriented parallel to each other. The development of the trailing stratiform precipitation region and the evolution of the convection within the southern part of the convective line were influenced by the merging squall lines. The trailing stratiform region formed as dissipating convection in the northern portion of the western squall line merged with the developing stratiform precipitation region associated with the eastern squall line. Intense storm-relative rear inflow was present at the rear of the northern portion of the western squall line. A pronounced anticyclonic circulation associated with a bow echo along the leading edge of the southern portion of the western squall line affected the intensity of convection in the southern part of the domain as the flow entered the rear of the convective line and accelerated towards the leading edge causing intense upward motion and strong convection.

Jamieson, Daniel Richard

2002-01-01T23:59:59.000Z

180

Modeling of decentralized linear observer and tracker for a class of unknown interconnected large-scale sampled-data nonlinear systems with closed-loop decoupling property  

Science Conference Proceedings (OSTI)

A novel low-order modeling of decentralized linear observer-based tracker is presented in this paper for a class of unknown interconnected large-scale sampled-data nonlinear systems with closed-loop decoupling property. The appropriate (low-)order decentralized ... Keywords: Digital redesign, Large-scale system, Observer, Observer/Kalman filter identification, Tracker

Jason Sheng-Hong Tsai; Nien-Tsu Hu; Po-Chuan Yang; Shu-Mei Guo; Leang-San Shieh

2010-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

Transit Timing Observations from Kepler: II. Confirmation of Two Multiplanet Systems via a Non-parametric Correlation Analysis  

SciTech Connect

We present a new method for confirming transiting planets based on the combination of transit timing variations (TTVs) and dynamical stability. Correlated TTVs provide evidence that the pair of bodies are in the same physical system. Orbital stability provides upper limits for the masses of the transiting companions that are in the planetary regime. This paper describes a non-parametric technique for quantifying the statistical significance of TTVs based on the correlation of two TTV data sets. We apply this method to an analysis of the transit timing variations of two stars with multiple transiting planet candidates identified by Kepler. We confirm four transiting planets in two multiple planet systems based on their TTVs and the constraints imposed by dynamical stability. An additional three candidates in these same systems are not confirmed as planets, but are likely to be validated as real planets once further observations and analyses are possible. If all were confirmed, these systems would be near 4:6:9 and 2:4:6:9 period commensurabilities. Our results demonstrate that TTVs provide a powerful tool for confirming transiting planets, including low-mass planets and planets around faint stars for which Doppler follow-up is not practical with existing facilities. Continued Kepler observations will dramatically improve the constraints on the planet masses and orbits and provide sensitivity for detecting additional non-transiting planets. If Kepler observations were extended to eight years, then a similar analysis could likely confirm systems with multiple closely spaced, small transiting planets in or near the habitable zone of solar-type stars.

Ford, Eric B.; /Florida U.; Fabrycky, Daniel C.; /Lick Observ.; Steffen, Jason H.; /Fermilab; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Fressin, Francois; /Harvard-Smithsonian Ctr. Astrophys.; Holman, Matthew J.; /Harvard-Smithsonian Ctr. Astrophys.; Lissauer, Jack J.; /NASA, Ames; Moorhead, Althea V.; /Florida U.; Morehead, Robert C.; /Florida U.; Ragozzine, Darin; /Harvard-Smithsonian Ctr. Astrophys.; Rowe, Jason F.; /NASA, Ames /SETI Inst., Mtn. View /San Diego State U., Astron. Dept.

2012-01-01T23:59:59.000Z

182

Testing a Coupled Global-limited-area Data Assimilation System Using Observations from the 2004 Pacific Typhoon Season  

E-Print Network (OSTI)

Tropical cyclone (TC) track and intensity forecasts have improved in recent years due to increased model resolution, improved data assimilation, and the rapid increase in the number of routinely assimilated observations over oceans. The data assimilation approach that has received the most attention in recent years is Ensemble Kalman Filtering (EnKF). The most attractive feature of the EnKF is that it uses a fully flow-dependent estimate of the error statistics, which can have important benefits for the analysis of rapidly developing TCs. We implement the Local Ensemble Transform Kalman Filter algorithm, a variation of the EnKF, on a reduced-resolution version of the National Centers for Environmental Prediction (NCEP) Global Forecast System (GFS) model and the NCEP Regional Spectral Model (RSM) to build a coupled global-limited area analysis/forecast system. This is the first time, to our knowledge, that such a system is used for the analysis and forecast of tropical cyclones. We use data from summer 2004 to study eight tropical cyclones in the Northwest Pacific. The benchmark data sets that we use to assess the performance of our system are the NCEP Reanalysis and the NCEP Operational GFS analyses from 2004. These benchmark analyses were both obtained by the Statistical Spectral Interpolation, which was the operational data assimilation system of NCEP in 2004. The GFS Operational analysis assimilated a large number of satellite radiance observations in addition to the observations assimilated in our system. All analyses are verified against the Joint Typhoon Warning Center Best Track data set. The errors are calculated for the position and intensity of the TCs. The global component of the ensemble-based system shows improvement in position analysis over the NCEP Reanalysis, but shows no significant difference from the NCEP operational analysis for most of the storm tracks. The regional component of our system improves position analysis over all the global analyses. The intensity analyses, measured by the minimum sea level pressure, are of similar quality in all of the analyses. Regional deterministic forecasts started from our analyses are generally not significantly different from those started from the GFS operational analysis. On average, the regional experiments performed better for longer than 48 h sea level pressure forecasts, while the global forecast performed better in predicting the position for longer than 48 h.

Holt, Christina

2011-08-01T23:59:59.000Z

183

A case for variational geomagnetic data assimilation: insights from a one-dimensional, nonlinear, and sparsely observed MHD system  

E-Print Network (OSTI)

Secular variations of the geomagnetic field have been measured with a continuously improving accuracy during the last few hundred years, culminating nowadays with satellite data. It is however well known that the dynamics of the magnetic field is linked to that of the velocity field in the core and any attempt to model secular variations will involve a coupled dynamical system for magnetic field and core velocity. Unfortunately, there is no direct observation of the velocity. Independently of the exact nature of the above-mentioned coupled system -- some version being currently under construction -- the question is debated in this paper whether good knowledge of the magnetic field can be translated into good knowledge of core dynamics. Furthermore, what will be the impact of the most recent and precise geomagnetic data on our knowledge of the geomagnetic field of the past and future? These questions are cast into the language of variational data assimilation, while the dynamical system considered in this pape...

Fournier, Alexandre; Alboussire, Thierry

2007-01-01T23:59:59.000Z

184

The Impact of Covariance Localization for Radar Data on EnKF Analyses of a Developing MCS: Observing System Simulation Experiments  

Science Conference Proceedings (OSTI)

Several observing system simulation experiments (OSSEs) were performed to assess the impact of covariance localization of radar data on ensemble Kalman filter (EnKF) analyses of a developing convective system. Simulated Weather Surveillance Radar-...

Ryan A. Sobash; David J. Stensrud

2013-11-01T23:59:59.000Z

185

Deducing the Orientation of the Semimajor Axis of the Eta Carinae Binary System from X-ray Observations  

E-Print Network (OSTI)

We study the usage of the X-ray light curve, column density toward the hard X-ray source, and emission measure (density square times volume), of the massive binary system Eta Carinae to determine the orientation of its semi-major axis. The source of the hard X-ray emission is the shocked secondary wind. We argue that, by itself, the observed X-ray flux cannot teach us much about the orientation of the semi-major axis. Minor adjustment of some unknown parameters of the binary system allows to fit theX-ray light curve with almost any inclination angle and orientation. The column density and X-ray emission measure, on the other hand, impose strong constrains on the orientation. We improve our previous calculations and show that the column density is more compatible with an orientation where for most of the time the secondary - the hotter, less massive star - is behind the primary star. The secondary comes closer to the observer only for a short time near periastron passage. The ten-week X-ray deep minimum, which...

Soker, Amit Kashi Noam

2009-01-01T23:59:59.000Z

186

DIRECT SOLUTIONS OF THE MAXWELL EQUATIONS EXPLAIN OPPOSITION PHENOMENA OBSERVED FOR HIGH-ALBEDO SOLAR SYSTEM OBJECTS  

Science Conference Proceedings (OSTI)

Several spectacular backscattering effects observed for particulate planetary surfaces have been interpreted in terms of the effect of weak localization (WL) of electromagnetic waves. However, the interference concept of WL explicitly relies on the notion of phase of an electromagnetic wave and is strictly applicable only when particles forming the surface are widely separated. Therefore, one needs a definitive quantitative proof of the WL nature of specific optical effects observed for densely packed particulate media. We use numerically exact computer solutions of the Maxwell equations to simulate electromagnetic scattering by realistic models consisting of large numbers of randomly positioned, densely packed particles. By increasing the particle packing density from zero to approx40%, we track the onset and evolution of the full suite of backscattering optical effects predicted by the low-density theory of WL, including the brightness and polarization opposition effects (BOE and POE). We find that all manifestations of WL, except the circular polarization ratio and POE, are remarkably immune to packing-density effects. Even POE can survive packing densities typical of planetary regolith surfaces. Our numerical data coupled with the results of unique observations at near-backscattering geometries demonstrate that the BOE and POE detected simultaneously for high-albedo solar system objects are caused by the effect of WL.

Mishchenko, Michael I.; Liu Li [NASA Goddard Institute for Space Studies, 2880 Broadway, New York, NY 10025 (United States); Dlugach, Janna M.; Rosenbush, Vera K.; Kiselev, Nikolai N. [Main Astronomical Observatory of the National Academy of Sciences of Ukraine, 27 Zabolotny Street, 03680 Kyiv (Ukraine); Shkuratov, Yuri G., E-mail: mmishchenko@giss.nasa.go [Astronomical Institute of the Kharkiv National University, 35 Sumska Street, 61022 Kharkiv (Ukraine)

2009-11-10T23:59:59.000Z

187

Forecasting Cloud Cover and Atmospheric Seeing for Astronomical Observing: Application and Evaluation of the Global Forecast System  

E-Print Network (OSTI)

To explore the issue of performing a non-interactive numerical weather forecast with an operational global model in assist of astronomical observing, we use the Xu-Randall cloud scheme and the Trinquet-Vernin AXP seeing model with the global numerical output from the Global Forecast System to generate 3-72h forecasts for cloud coverage and atmospheric seeing, and compare them with sequence observations from 9 sites from different regions of the world with different climatic background in the period of January 2008 to December 2009. The evaluation shows that the proportion of prefect forecast of cloud cover forecast varies from ~50% to ~85%. The probability of cloud detection is estimated to be around ~30% to ~90%, while the false alarm rate is generally moderate and is much lower than the probability of detection in most cases. The seeing forecast has a moderate mean difference (absolute mean difference <0.3" in most cases) and root-mean-square-error or RMSE (0.2"-0.4" in most cases) comparing with the obs...

Ye, Q -z

2010-01-01T23:59:59.000Z

188

Comparison of Local and Nonlocal Observation Operators for the Assimilation of GPS RO Data with the NCEP GSI System: An OSSE Study  

Science Conference Proceedings (OSTI)

In this study, an Observing System Simulation Experiment (OSSE) is performed to evaluate the performance of a nonlocal excess phase operator and a local refractivity operator for a GPS radio occultation (RO) sounding that passes through the eye ...

Zaizhong Ma; Ying-Hwa Kuo; Bin Wang; Wan-Shu Wu; Sergey Sokolovskiy

2009-10-01T23:59:59.000Z

189

The Contributions of Precipitation and Soil Moisture Observations to the Skill of Soil Moisture Estimates in a Land Data Assimilation System  

Science Conference Proceedings (OSTI)

The contributions of precipitation and soil moisture observations to soil moisture skill in a land data assimilation system are assessed. Relative to baseline estimates from the Modern Era Retrospective-analysis for Research and Applications (...

Qing Liu; Rolf H. Reichle; Rajat Bindlish; Michael H. Cosh; Wade T. Crow; Richard de Jeu; Gabrielle J. M. De Lannoy; George J. Huffman; Thomas J. Jackson

2011-10-01T23:59:59.000Z

190

Observations of Wintertime U.S. West Coast Precipitating Systems with W-Band Satellite Radar and Other Spaceborne Instruments  

Science Conference Proceedings (OSTI)

The potential of CloudSat W-band radar for observing wintertime storms affecting the West Coast of North America is evaluated. Storms having high hydrological impact often result from landfalls of atmospheric rivers (ARs), which are the narrow ...

Sergey Y. Matrosov

2012-02-01T23:59:59.000Z

191

Observing System Simulation Experiments and Objective Analysis Tests in Support of the Goals of the Atmospheric Radiation Measurement Program  

Science Conference Proceedings (OSTI)

Time continuous data assimilation or four-dimensional data assimilation (FDDA) is a collection of techniques where observations are ingested into a numerical model during the simulation in order to produce a physically balanced estimate of the ...

David B. Parsons; Jimy Dudhia

1997-10-01T23:59:59.000Z

192

Assimilation of Circumpolar Wind Vectors Derived from Highly Elliptical Orbit Imagery: Impact Assessment Based on Observing System Simulation Experiments  

Science Conference Proceedings (OSTI)

There is a well-recognized spatiotemporal meteorological observation gap at latitudes higher than 55, especially in the region 5570. A possible solution to address this issue is a constellation of four satellites in a highly elliptical orbit (...

L. Garand; J. Feng; S. Heilliette; Y. Rochon; A. P. Trishchenko

2013-08-01T23:59:59.000Z

193

High explosive systems for equation-of-state studies  

Science Conference Proceedings (OSTI)

Experimental and calculational studies were made to specify a suite of explosive impactor systems to be used in high pressure equation-of-state (EOS) measurements. 316 stainless steel (SS) was used as the driver or impactor. The investigation included some systems where the high explosive (HE) driving the plate to be used as the impactor was preshocked by another thicker SS plate. The effect of lateral confinement, either by HE or iron rings constituted part of the study. The effect of separating the HE and driver was also studied. The velocity range encompassed was from less than 4 km/s to over 9 km/s, which was observed in a two-stage experiment. 4 figs., 1 tab.

McQueen, R.G.; Marsh, S.P.

1987-01-01T23:59:59.000Z

194

Event Counting of Partially-Observed Discrete-Event Systems with Uniformly and Nonuniformly Bounded Diagnosis Delays  

Science Conference Proceedings (OSTI)

We present an approach dealing with repeated fault events in the framework of model-based monitoring of discrete-event systems (DES). Various notions of diagnosability reported in the literature deal with uniformly bounded finite detection of counting ... Keywords: Computational complexity, Discrete-event systems, Fault diagnosis, Repeated/intermittent faults

Tae-Sic Yoo; Humberto E. Garcia

2009-06-01T23:59:59.000Z

195

Environmental effects of solar thermal power systems: ecological observations during construction of the Barstow 10 MWe pilot STPS  

DOE Green Energy (OSTI)

The environmental monitoring plan used consists of comparisons of a few meteorological variables and changes in the states of a limited array of indicator species or assemblages of species of plants and animals. Observations inlude aerial photography of the site, saltation meter measurements downwind from the site to measure fluxes of windblown sand, measurements of airborne particulates and atmospheric pollutants, and baseline temperature profiles made at two sites near the heliostat field to measure micro-meteorological patterns. Observations were made of annual plants both in off-field plots and in heliostat field, of shrubs, birds, rodents, reptiles, and sensitive species listed as rare or endangered. (LEW)

Turner, F.B. (ed.) [ed.

1981-10-01T23:59:59.000Z

196

Re: Potomac River Generating Station Department of Energy, Case No. EO-05-01: Potomac Electric Power Company (PEPCO) Concerning Planned Outages of the 230 kV circuits  

Energy.gov (U.S. Department of Energy (DOE))

Docket EO-05-01: Pursuant to the United States Department of Energy ("DOE") Order No. 202-05-3, issued December 20, 2005 ("DOE Potomac River Order") Pepco hereby files this revised notice of the...

197

Assimilation of circumpolar wind vectors derived from highly elliptical orbit imagery: impact assessment based on observing system simulation experiments  

Science Conference Proceedings (OSTI)

There is a well recognized spatio-temporal meteorological observation gap at latitudes higher than 55, especially in the region 55-70. A possible solution to address this issue is a constellation of four satellites in a highly elliptical orbit (...

L. Garand; J. Feng; S. Heilliette; Y. Rochon; A. P. Trishchenko

198

Mesoscale to Submesoscale Transition in the California Current System. Part I: Flow Structure, Eddy Flux, and Observational Tests  

Science Conference Proceedings (OSTI)

In computational simulations of an idealized subtropical eastern boundary upwelling current system, similar to the California Current, a submesoscale transition occurs in the eddy variability as the horizontal grid scale is reduced to O(1) km. ...

X. Capet; J. C. McWilliams; M. J. Molemaker; A. F. Shchepetkin

2008-01-01T23:59:59.000Z

199

A Study of Persistence in the LandAtmosphere System Using a General Circulation Model and Observations  

Science Conference Proceedings (OSTI)

Persistence in the landatmosphere system simulated with the National Center for Atmosphere Research Community Climate Model Version 2 (CCM2) coupled with the BiosphereAtmosphere Transfer Scheme (BATS) is examined. BATS simulates various ...

Yongqiang Liu; Roni Avissar

1999-08-01T23:59:59.000Z

200

A Mesoscale Gravity Wave Event Observed during CCOPE. Part II: Interactions between Mesoscale Convective Systems and the Antecedent Waves  

Science Conference Proceedings (OSTI)

This paper presents the results of a very detailed investigation into the effects of preexisting gravity waves upon convective systems, as well as the feedback effects of convection of varying intensity upon the waves. The analysis is based on ...

Steven E. Koch; Robert E. Golus; Paul B. Dorian

1988-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


201

Correction of Radar QPE Errors for Non-Uniform VPRs in Mesoscale Convective Systems Using TRMM Observations  

Science Conference Proceedings (OSTI)

Mesoscale Convective Systems (MCSs) contain both regions of convective and stratiform precipitation, and a bright band (BB) is often found in the stratiform region. Inflated reflectivity intensities in the BB often cause positive biases in radar ...

Youcun Qi; Jian Zhang; Qing Cao; Yang Hong; Xiao-Ming Hu

202

Comparisons of Line-of-Sight Water Vapor Observations Using the Global Positioning System and a Pointing Microwave Radiometer  

Science Conference Proceedings (OSTI)

Line-of-sight measurements of integrated water vapor from a global positioning system (GPS) receiver and a microwave radiometer are compared. These two instruments were collocated at the central facility of the Department of Energys Atmospheric ...

John Braun; Christian Rocken; James Liljegren

2003-05-01T23:59:59.000Z

203

Deep Convective Systems Observed by A-Train in the Tropical Indo-Pacific Region Affected by the MJO  

Science Conference Proceedings (OSTI)

In the Indo-Pacific region, mesoscale convective systems (MCSs) occur in a pattern consistent with the eastward propagation of the large-scale convective envelope of the MaddenJulian oscillation (MJO). MCSs are major contributors to the total ...

Jian Yuan; Robert A. Houze Jr.

2013-02-01T23:59:59.000Z

204

Microphysical and Thermodynamic Structure and Evolution of the Trailing Stratiform Regions of Mesoscale Convective Systems during BAMEX. Part I: Observations  

Science Conference Proceedings (OSTI)

This study used airborne and ground-based radar and optical array probe data from the spiral descent flight patterns and horizontal flight legs of the NOAA P-3 aircraft in the trailing stratiform regions (TSRs) of mesoscale convective systems (...

Andrea M. Smith; Greg M. McFarquhar; Robert M. Rauber; Joseph A. Grim; Michael S. Timlin; Brian F. Jewett; David P. Jorgensen

2009-04-01T23:59:59.000Z

205

Noah-GEM and Land Data Assimilation System (LDAS) based downscaling of global reanalysis surface fields: Evaluations using observations from a CarboEurope agricultural site  

Science Conference Proceedings (OSTI)

This study provides the first assessment of the Noah and Noah-GEM (photosynthesis-based Gas exchange Evapotranspiration Model) land surface model using observations from the Avignon, France CarboEurope agricultural site during 2006 and 2007. Noah and ... Keywords: CarboEurope, Fluxnet, Land Data Assimilation System, Latent heat flux, Noah, Noah-GEM

Umarporn Charusombat; Dev Niyogi; SBastien Garrigues; Albert Olioso; Olivier Marloie; Michael Barlage; Fei Chen; Michael Ek; Xuemei Wang; Zhiyong Wu

2012-08-01T23:59:59.000Z

206

Transit Timing Observations from Kepler: III. Confirmation of 4 Multiple Planet Systems by a Fourier-Domain Study of Anti-correlated Transit Timing Variations  

SciTech Connect

We present a method to confirm the planetary nature of objects in systems with multiple transiting exoplanet candidates. This method involves a Fourier-domain analysis of the deviations in the transit times from a constant period that result from dynamical interactions within the system. The combination of observed anticorrelations in the transit times and mass constraints from dynamical stability allow us to claim the discovery of four planetary systems, Kepler-25, Kepler-26, Kepler-27 and Kepler-28, containing eight planets and one additional planet candidate.

Steffen, Jason H.; /Fermilab; Fabrycky, Daniel C.; /Lick Observ.; Ford, Eric B.; /Florida U.; Carter, Joshua A.; /Harvard-Smithsonian Ctr. Astrophys.; Fressin, Francois; /Harvard-Smithsonian Ctr. Astrophys.; Holman, Matthew J.; /Harvard-Smithsonian Ctr. Astrophys.; Lissauer, Jack J.; /NASA, Ames; Rowe, Jason F.; /SETI Inst., Mtn. View /NASA, Ames; Ragozzine, Darin; /Harvard-Smithsonian Ctr. Astrophys.; Welsh, William F.; /Caltech; Borucki, William J.; /NASA, Ames /UC, Santa Barbara

2012-01-01T23:59:59.000Z

207

FOUR FUNDAMENTAL FOREGROUND POWER SPECTRUM SHAPES FOR 21 cm COSMOLOGY OBSERVATIONS  

SciTech Connect

Contamination from instrumental effects interacting with bright astrophysical sources is the primary impediment to measuring Epoch of Reionization (EoR) and Baryon Acoustic Oscillations (BAO) 21 cm power spectra-an effect called mode mixing. In this paper, we identify four fundamental power spectrum shapes produced by mode mixing that will affect all upcoming observations. We are able, for the first time, to explain the wedge-like structure seen in advanced simulations and to forecast the shape of an 'EoR window' that is mostly free of contamination. Understanding the origins of these contaminations also enables us to identify calibration and foreground subtraction errors below the imaging limit, providing a powerful new tool for precision observations.

Morales, Miguel F.; Hazelton, Bryna; Sullivan, Ian; Beardsley, Adam [Department of Physics, University of Washington, Seattle, WA 98195 (United States)

2012-06-20T23:59:59.000Z

208

EO 13287: Preserve America  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

10635 10635 Title 3- The President Federal Register / Vol. 68, No. 43 / Wednesday, March 5, 2003 / Presidential Documents Executive Order 13287 of March 3, 2003 Preserve America By the authority vested in me as President by the Constitution and the laws of the United States of America, including the National Historic Preser- vation Act (16 U.S.C. 470 et seq.) (NHPA) and the National Environmental Policy Act (42 U.S.C. 4321 et seq.), it is hereby ordered: Section 1. Statement of Policy. It is the policy of the Federal Government to provide leadership in preserving America's heritage by actively advancing the protection, enhancement, and contemporary use of the historic properties owned by the Federal Government, and by promoting intergovernmental cooperation and partnerships for the preservation and use of historic prop-

209

EO 13112: Invasive Species  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

183 183 Federal Register / Vol. 64, No. 25 / Monday, February 8, 1999 / Presidential Documents Executive Order 13112 of February 3, 1999 Invasive Species By the authority vested in me as President by the Constitution and the laws of the United States of America, including the National Environmental Policy Act of 1969, as amended (42 U.S.C. 4321 et seq.), Nonindigenous Aquatic Nuisance Prevention and Control Act of 1990, as amended (16 U.S.C. 4701 et seq.), Lacey Act, as amended (18 U.S.C. 42), Federal Plant Pest Act (7 U.S.C. 150aa et seq.), Federal Noxious Weed Act of 1974, as amended (7 U.S.C. 2801 et seq.), Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.), and other pertinent statutes, to prevent the introduc- tion of invasive species and provide for their control and to minimize

210

EO 11988: Floodplain Management  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

88 88 Floodplain Management Source: The provisions of Executive Order 11988 of May 24, 1977, appear at 42 FR 26951, unless otherwise noted. By virtue of the authority vested in me by the Constitution and statutes of the United States of America, and as President of the United States of America, in furtherance of the National Environmental Policy Act of 1969, as amended (42 U.S.C. 4321 et seq.), the National Flood Insurance Act of 1968, as amended (42 U.S.C. 4001 et seq.), and the Flood Disaster Protection Act of 1973 (Public Law 93-234, 87 Stat. 975), in order to avoid to the extent possible the long and short term adverse impacts associated with the occupancy and modification of floodplains and to avoid direct or indirect support of floodplain development wherever there is a practicable

211

Make Observations  

NLE Websites -- All DOE Office Websites (Extended Search)

and public perceptions and preferences, help improve our understanding of risk, vulnerability, resilience, and adaptive capacity. How does USGCRP make observations? USGCRP...

212

Observations - CECM  

E-Print Network (OSTI)

May 10, 1999 ... A broad range of observations were made, culled from the various sources mentioned. Those bearing directly on the participatory process are...

213

Observational Constraints of Modified Chaplygin Gas in RS II Brane  

E-Print Network (OSTI)

FRW universe in RS II braneworld model filled with a combination of dark matter and dark energy in the form of modified Chaplygin gas (MCG) is considered. It is known that the equation of state (EoS) for MCG is a three-variable equation determined by $A$, $\\alpha$ and $B$. The permitted values of these parameters are determined by the recent astrophysical and cosmological observational data. Here we present the Hubble parameter in terms of the observable parameters $\\Omega_{m0}$, $\\Omega_{x0}$, $H_{0}$, redshift $z$ and other parameters like $A$, $B$, $C$ and $\\alpha$. From Stern data set (12 points), we have obtained the bounds of the arbitrary parameters by minimizing the $\\chi^{2}$ test. The best-fit values of the parameters are obtained by 66%, 90% and 99% confidence levels. Next due to joint analysis with BAO and CMB observations, we have also obtained the bounds of the parameters ($B,C$) by fixing some other parameters $\\alpha$ and $A$. The best fit value of distance modulus $\\mu(z)$ is obtained for the MCG model in RS II brane, and it is concluded that our model is perfectly consistent with the union2 sample data.

Chayan Ranjit; Prabir Rudra; Sujata Kundu

2013-04-24T23:59:59.000Z

214

Aerosol Observing System (AOS) Handbook  

E-Print Network (OSTI)

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 favoring by the U.S. Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect

A. Jefferson

2011-01-01T23:59:59.000Z

215

Protocols from perceptual observations  

Science Conference Proceedings (OSTI)

This paper presents a cognitive vision system capable of autonomously learning protocols from perceptual observations of dynamic scenes. The work is motivated by the aim of creating a synthetic agent that can observe a scene containing interactions between ... Keywords: Autonomous learning, Cognitive vision, Inductive logic programming, Spatio-temporal reasoning, Symbol grounding, Unsupervised clustering

Chris J. Needham; Paulo E. Santos; Derek R. Magee; Vincent Devin; David C. Hogg; Anthony G. Cohn

2005-09-01T23:59:59.000Z

216

Executive Order 13514: Federal Leadership in Environmental, Energy, and Economic Performance; Guidance for Federal Agencies on E.O. 13514 Section 12, Federal Fleet Management, April 2010, Federal Energy Management Program (FEMP)  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Executive Order 13514 Executive Order 13514 Federal Leadership in Environmental, Energy, and Economic Performance Guidance for Federal Agencies on E.O. 13514 Section 12, Federal Fleet Management April 2010 FEDERAL ENERGY MANAGEMENT PROGRAM FEDERAL ENERGY MANAGEMENT PROGRAM E.O. 13514 Section 12 Guidance Page i Contacts Amanda Sahl Federal Energy Management Program (FEMP) U.S. Department of Energy (DOE) 202-586-1662 federal_fleets@ee.doe.gov FEMP General Contact Information EE-2L 1000 Independence Avenue, SW Washington, DC 20585-0121 202-586-5772

217

Definition: Observation Wells | Open Energy Information  

Open Energy Info (EERE)

Observation Wells Jump to: navigation, search Dictionary.png Observation Wells An observation well is used to monitor important hydrologic parameters in a geothermal system that...

218

Phase behavior and miscible process analysis of Cusiana Field hydrocarbon system using a reduced component equation of state  

E-Print Network (OSTI)

Cusiana Field is located in the foothill belt of Llanos basin in eastern Colombia. This field has large reserves of light hydrocarbons in Mirador (Tertiary), Barco and Guadalupe (Cretaceous) formations. The development of this field beginning with Mirador formation is underway, and includes a gas cycling project. A complex hydrocarbon system has been found in the reservoirs. Because of vertical compositional variation, fluids grade from retrograde gas to black oil as they pass through critical conditions. Phase behavior of these fluids has an important effect on the in-place volume determination and on field development strategies. Previous reservoir analysis and predictions have been done using a 10-component equation of state (EOS), characterized with the help of an extensive laboratory measurement program, including PVT depletion experiments, separation-type tests, and gas injection tests. We developed a reduced component equation of state to reduce time and resources required for full-field compositional simulations using the 10-component EOS. Three different lumping schemes were tried, two of them with six components and one with seven. A validation process was carried out to check the consistency of this reduced component EOS. This process consisted of two steps: The first step was the match of a large set of "experimental" type data generated with the 10-component EOS. The second step was the matching of the saturation and compositional path followed by reservoir oil during a simulated gas injection displacement process. A coreflood experiment and a two-dimensional cross-section of the reservoir were simulated with a one-dimensional and a two-dimensional model, respectively. These models, previously developed by British Petroleum, matched laboratory and field data using the 10-component EOS. Here, we replaced the 10-component EOS with our reduced component EOS and compared the results. All three reduced EOS successfully went through the first step of validation, matching the "experimental" PVT data, but only the seven-component EOS got a good match of the oil saturation and compositional path in the second step. This seven-component EOS reduced the simulation time to about 68% for the one-dimensional case and to 60% for the two-dimensional case. Although multicontact miscibility is not reached during the gas displacement process, vaporization of oil by injected lean gas proved to be an efficient oil recovery mechanism.

Brunal Florez, Antonio Jose

1995-01-01T23:59:59.000Z

219

Field observations and lessons learned  

SciTech Connect

This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.

Nielsen, Joh B [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

220

Quantum Mechanics Without Observers  

E-Print Network (OSTI)

The measurement problem and the role of observers have plagued quantum mechanics since its conception. Attempts to resolve these have introduced anthropomorphic or non-realist notions into physics. A shift of perspective based upon process theory and utilizing methods from combinatorial games, interpolation theory and complex systems theory results in a novel realist version of quantum mechanics incorporating quasi-local, nondeterministic hidden variables that are compatible with the no-hidden variable theorems and relativistic invariance, and reproduce the standard results of quantum mechanics to a high degree of accuracy without invoking observers.

W. H. Sulis

2013-02-18T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

Network Observability Transitions  

E-Print Network (OSTI)

In the modeling, monitoring, and control of complex networks, a fundamental problem concerns the comprehensive determination of the state of the system from limited measurements. Using power grids as example networks, we show that this problem leads to a new type of percolation transition, here termed a {\\it network observability transition}, which we solve analytically for the configuration model. We also demonstrate a dual role of the network's community structure, which both facilitates optimal measurement placement and renders the networks substantially more sensitive to `observability attacks'. Aside from their immediate implications for the development of smart grids, these results provide insights into decentralized biological, social, and technological networks.

Yang, Yang; Motter, Adilson E; 10.1103/PhysRevLett.109.258701

2013-01-01T23:59:59.000Z

222

The assimilation of observations from the Advanced Microwave Sounding Unit over sea ice in the French global Numerical Weather Prediction system  

Science Conference Proceedings (OSTI)

The aim of this study is to test the feasibility of assimilating microwave observations from AMSU-A and AMSU-B through the implementation of an appropriate parameterization of sea ice emissivity. AMSU observations are relevant to describe the air ...

Fatima Karbou; Florence Rabier; Catherine Prigent

223

Testing the phenomenological interacting dark energy with observational $H(z)$ data  

E-Print Network (OSTI)

In order to test the possible interaction between dark energy and dark matter, we investigate observational constraints on a phenomenological scenario, in which the ratio between the dark energy and matter energy densities is proportional to the pow law case of the scale factor, $r\\equiv (\\rho_X/\\rho_m)\\propto a^{\\xi}$. With the newly revised $H(z)$ data, as well as the cosmic microwave background (CMB) observation from the 7-year Wilkinson Microwave Anisotropy Probe (WMAP7) results, the baryonic acoustic oscillation (BAO) observation from the spectroscopic Sloan Digital Sky Survey (SDSS) Data Release and the type Ia supernovae (SNe Ia) from Union2 set, by using the Markov Chain Monte Carlo (MCMC) method, we obtain $\\Omega_{m0}=0.253_{-0.018}^{+0.020}$ and $\\xi=3.07_{-0.11}^{+0.12}$ for the phenomenological $\\Lambda$CDM scenario; and $\\Omega_{m0}=0.276_{-0.028}^{+0.028}$, $\\xi=3.41_{-0.52}^{+0.61}$, and $w_X=-1.07_{-0.13}^{+0.12}$ for the phenomenological $w$CDM scenario with a constant EoS of dark energy. Th...

Cao, Shuo

2010-01-01T23:59:59.000Z

224

Comparison between Dual-Doppler and EnKF Storm-Scale Wind Analyses: Observing System Simulation Experiments with a Supercell Thunderstorm  

Science Conference Proceedings (OSTI)

Kinematical analyses of mobile radar observations are critical to advancing the understanding of supercell thunderstorms. Maximizing the accuracy of these and subsequent dynamical analyses, and appropriately characterizing the uncertainty in ...

Corey K. Potvin; Louis J. Wicker

2012-12-01T23:59:59.000Z

225

The Assimilation of Observations from the Advanced Microwave Sounding Unit over Sea Ice in the French Global Numerical Weather Prediction System  

Science Conference Proceedings (OSTI)

The aim of this study is to test the feasibility of assimilating microwave observations from the Advanced Microwave Sounding Units (AMSU-A and AMSU-B) through the implementation of an appropriate parameterization of sea ice emissivity. AMSU ...

Fatima Karbou; Florence Rabier; Catherine Prigent

2014-01-01T23:59:59.000Z

226

Mechanisms of Meridional Teleconnection Observed between a Summer Monsoon System and a Subtropical Anticyclone. Part I: The PacificJapan Pattern  

Science Conference Proceedings (OSTI)

Summertime atmospheric circulation over the midlatitude western North Pacific (WNP) is influenced by anomalous convective activity near the Philippines. This meridional teleconnection, observed in monthly anomalies and known as the PacificJapan (...

Yu Kosaka; Hisashi Nakamura

2010-10-01T23:59:59.000Z

227

ANL Workshop on the EoS in Astrophysics - 2008  

NLE Websites -- All DOE Office Websites (Extended Search)

Equation of State at Nonzero Density and Temperature, and its Equation of State at Nonzero Density and Temperature, and its Application in Astrophysics ANL Workshop, 25-29 August 2008, TheoryGroup in the ANL Physics Division JINA News Location Program 1st Circular Restaurants Links Contact News 08/30/08 - Last news on this workshop: It seems like everybody made it home safely. We take this opportunity to thank all our speakers and participants for their interesting and instructive contributions to this workshop. Thank you! 08/26/08 - Our workshop dinner will be held tomorrow, Wednesday 08/27 at the Saffron Restaurant on 6020 Cass Ave Westmont, IL 60559 at 7pm. Please gather at about 6:30pm at the entrance to the Physics Division's building to ensure everyone will be able to get to the restaurant. I'll collect the fee in advance.

228

RF, EO and Microelectronic Materials  

Science Conference Proceedings (OSTI)

Our approach involves further purification by the distillation method before crystal growth. It is expected that by using organic crystals the energy resolution and...

229

EO 11990: Protection Of Wetlands  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

90-Protection Of Wetlands 90-Protection Of Wetlands SOURCE: The provisions of Executive Order 11990 of May 24, 1977, appear at 42 FR 26961, 3 CFR, 1977 Comp., p. 121, unless otherwise noted. By virtue of the authority vested in me by the Constitution and statutes of the United States of America, and as President of the United States of America, in furtherance of the National Environmental Policy Act of 1969, as amended (42 U.S.C. 4321 et s eq.), in order to avoid to the extent possible the long and short term adverse impacts associated with the destruction or modification of wetlands and to avoid direct or indirect support of new construction in wetlands wherever there is a practicable alternative, it is hereby ordered as follows: SECTION 1. (a) Each agency shall provide leadership and shall take action to minimize the

230

Four-Dimensional Assimilation of Multitime Wind Profiles over a Single Station and Numerical Simulation of a Mesoscale Convective System Observed during IHOP_2002  

Science Conference Proceedings (OSTI)

This study examines the impact of assimilating multitime wind profiles over a single station on the numerical simulation of a warm season mesoscale convective system over the region from the Kansas and Oklahoma border to the Texas Panhandle, ...

Lei Zhang; Zhaoxia Pu

2011-11-01T23:59:59.000Z

231

Evaluation of a Mesoscale Atmospheric Dispersion Modeling System with Observations from the 1980 Great Plains Mesoscale Tracer Field Experiment. Part I: Datasets and Meteorological Simulations  

Science Conference Proceedings (OSTI)

The Colorado State University mesoscale atmospheric dispersion (MAD) numerical modeling system, which consists of a prognostic mesoscale meteorological model coupled to a mesoscale Lagrangian particle dispersion model, has been used to simulate ...

Michael D. Moran; Roger A. Pielke

1996-03-01T23:59:59.000Z

232

Observation Wells | Open Energy Information  

Open Energy Info (EERE)

Observation Wells Observation Wells Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Observation Wells Details Activities (7) Areas (7) Regions (0) NEPA(15) Exploration Technique Information Exploration Group: Drilling Techniques Exploration Sub Group: Development Drilling Parent Exploration Technique: Development Drilling Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Total dissolved solids, fluid pressure, flow rates, and flow direction Thermal: Monitors temperature of circulating fluids Dictionary.png Observation Wells: An observation well is used to monitor important hydrologic parameters in a geothermal system that can indicate performance, longevity, and transient processes. Other definitions:Wikipedia Reegle

233

Final Report: Natural State Models of The Geysers Geothermal System, Sonoma County, California  

DOE Green Energy (OSTI)

Final project report of natural state modeling effort for The Geysers geothermal field, California. Initial models examined the liquid-dominated state of the system, based on geologic constraints and calibrated to match observed whole rock delta-O18 isotope alteration. These models demonstrated that the early system was of generally low permeability (around 10{sup -12} m{sup 2}), with good hydraulic connectivity at depth (along the intrusive contact) and an intact caprock. Later effort in the project was directed at development of a two-phase, supercritical flow simulation package (EOS1sc) to accompany the Tough2 flow simulator. Geysers models made using this package show that ''simmering'', or the transient migration of vapor bubbles through the hydrothermal system, is the dominant transition state as the system progresses to vapor-dominated. Such a system is highly variable in space and time, making the rock record more difficult to interpret, since pressure-temperature indicators likely reflect only local, short duration conditions.

T. H. Brikowski; D. L. Norton; D. D. Blackwell

2001-12-31T23:59:59.000Z

234

Rainfall Characteristics and Convective Properties of Mei-Yu Precipitation Systems over South China, Taiwan, and the South China Sea. Part I: TRMM Observations  

Science Conference Proceedings (OSTI)

Rainfall characteristics and mesoscale properties of precipitation systems in mei-yu seasons over South China, Taiwan, and the South China Sea (SCS) during 19982007 are investigated in this study. Mei-yu rainbands are defined using the Tropical ...

Weixin Xu; Edward J. Zipser; Chuntao Liu

2009-12-01T23:59:59.000Z

235

Traffic observation and situation assessment  

Science Conference Proceedings (OSTI)

Utilization of camera systems for surveillance tasks (e. g. traffic monitoring) has become a standard procedure and has been in use for over 20 years. However, most of the cameras are operated locally and data analyzed manually. Locally means here a ... Keywords: cooperative distributed vision, multi-camera orientation, multi-camera system, multi-target tracking, situation, traffic observation

Ralf Reulke; Dominik Rue; Kristian Manthey; Andreas Luber

2011-06-01T23:59:59.000Z

236

A system to test the effects of materials on the electron drift lifetime in liquid argon and observations on the effect of water  

SciTech Connect

A materials test system (MTS) has been developed at FNAL to assess the suitability of materials for use in a large liquid argon time projection chamber. During development of the MTS, it was noted that controlling the cryostat pressure with a 'raining' condenser reduced the electron drift lifetime in the liquid argon. The effect of condensing has been investigated using a series of passive materials to filter the condensate. We report the results of these studies and of tests on different candidate materials for detector construction. The inferred reduction of electron drift lifetime by water concentrations in the parts per trillion is of particular interest.

Andrews, R.; Jaskierny, W.; Jostlein, H.; Kendziora, C.; Pordes, S.; Tope, T.; /Fermilab

2009-07-01T23:59:59.000Z

237

Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for Observation of Waste Treatment and Immobilization Plant LAW Melter and Melter Off-gas Process System Hazards Analysis _Oct 21-31  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

HSS Independent Activity Report - HSS Independent Activity Report - Rev. 0 Report Number: HIAR-WTP-2013-10-21 Site: Hanford Site Subject: Office of Enforcement and Oversight's Office of Safety and Emergency Management Evaluations Activity Report for Observation of Waste Treatment and Immobilization Plant Low Activity Waste Melter and Melter Off-gas Process System Hazards Analysis Activities Dates of Activity : 10/21/13 - 10/31/13 Report Preparer: James O. Low Activity Description/Purpose: The Office of Health, Safety and Security (HSS), Office of Safety and Emergency Management Evaluations (Independent Oversight) reviewed the Insight software hazard evaluation (HE) tables for hazard analysis (HA) generated to date for the Waste Treatment and Immobilization Plant (WTP) Low Activity Waste (LAW) Melter and Off-gas systems, observed a

238

High-pressure vapor-liquid equilibria in the propane-1-propanol system  

SciTech Connect

High-pressure isothermal vapor liquid equilibrium data were measured for the propane-1-propanol system at 81.6, 105.2, and 120.1 C in a static equilibrium cell with liquid-phase sampling by a piston-driven sampling rod and homogenizing the sample with a static jet mixer. The vapor phase was sampled by releasing it into an evacuated manifold, and the gas chromatograph was calibrated with a new variable volumetric device. Satisfactory modeling was achieved with the combined method using the UNIQUAC equation with equations of sate: the group contribution EOS, Peng-Robinson EOS, or the two-parameter Virial EOS. Differences between the measured and calculated vapor-phase mole fractions, however, were significant for the lower pressure regions of the 81.6 and 120.1 C isotherms. UNIQUAC parameters, hitherto unavailable, with fairly strong temperature dependence in the 81.6 to 120.1 C range are proposed for the system. The covariance matrix indicated a significant correlation among the parameters. The classical mixing rule interaction parameters required for the original Peng-Robinson EOS in the combined method were obtained using the direct method and were temperature-independent for the isotherms for which the propane was supercritical. The possibility of propane/1-propanol immiscibility was theoretically examined according to the criteria of Baker et al. The plots of Gibbs energy of mixing vs. phase mole fractions did not indicate liquid-phase splitting, but the inferences are EOS-dependent and must await visual confirmation. The authors earlier vapor-phase thermodynamic consistency test indicated the data for all three data sets not to be inconsistent.

Muehlbauer, A.L.; Raal, J.D. (Univ. of Natal, Durban (South Africa))

1993-04-01T23:59:59.000Z

239

Atomic Collapse Observed  

NLE Websites -- All DOE Office Websites (Extended Search)

Collapse State Observed Aided by Simulations, Scientists Observe Atomic Collapse State Quantum Mechanics Prediction Confirmed in Graphene Using NERSC's Hopper April 26, 2013 |...

240

The THORPEX Observation Impact Intercomparison Experiment  

Science Conference Proceedings (OSTI)

An experiment is being conducted to directly compare the impact of all assimilated observations on short-range forecast errors in different forecast systems using an adjoint-based technique. The technique allows detailed comparison of observation ...

Ronald Gelaro; Rolf H. Langland; Simon Pellerin; Ricardo Todling

2010-11-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


241

Systems  

E-Print Network (OSTI)

Abstract Developing usable and robust mixed reality systems requires unique humancomputer interaction techniques and customized hardware systems. The design of the hardware is directed by the requirements of the rich 3D interactions that can be performed using immersive mobile MR systems. Geometry modeling and capture, navigational annotations, visualizations, and training simulations are all enhanced using augmented computer graphics. We present the design guidelines that have led us through 10 years of evolving mobile outdoor MR hardware systems.

Benjamin Avery; Ross T. Smith; Wayne Piekarski; Bruce H. Thomas

2009-01-01T23:59:59.000Z

242

Biomimetic Cloning of Quantum Observables  

E-Print Network (OSTI)

We propose a bio-inspired sequential quantum protocol for the cloning and preservation of the statistics associated to quantum observables of a given system. It combines the cloning of a set of commuting observables, permitted by the no-cloning and no-broadcasting theorems, with a controllable propagation of the initial state coherences to the subsequent generations. The protocol mimics the scenario in which an individual in an unknown quantum state copies and propagates its quantum information into an environment of blank qubits. Finally, we propose a realistic experimental implementation of this protocol in trapped ions.

U. Alvarez-Rodriguez; M. Sanz; L. Lamata; E. Solano

2013-12-12T23:59:59.000Z

243

Prediction of solubility of gases in polystyrene by Adaptive Neuro-Fuzzy Inference System and Radial Basis Function Neural Network  

Science Conference Proceedings (OSTI)

Adaptive Neuro-Fuzzy Inference System (ANFIS) and Radial Basis Function Neural Network (RBF NN) have been developed for prediction of solubility of various gases in polystyrene. Solubility of butane, isobutene, carbon dioxide, 1,1,1,2-tetrafluoroethane ... Keywords: ANFIS, ANN, ARD, Adaptive Neuro-Fuzzy Inference System (ANFIS), BP, HCFC-142b, HFC-134a, HFC-l52a, MLP, PS, Polystyrene, RBF NN, Radial Basis Function Neural Network (RBF NN), S-L EOS, Solubility

Aboozar Khajeh; Hamid Modarress

2010-04-01T23:59:59.000Z

244

Intercalibration of Broadband Geostationary Imagers Using AIRS  

Science Conference Proceedings (OSTI)

Geostationary simultaneous nadir observations (GSNOs) are collected for Earth Observing System (EOS) Atmospheric Infrared Sounder (AIRS) on board Aqua and a global array of geostationary imagers. The imagers compared in this study are on (...

Mathew M. Gunshor; Timothy J. Schmit; W. Paul Menzel; David C. Tobin

2009-04-01T23:59:59.000Z

245

Brief paper: Near optimal interval observers bundle for uncertain bioreactors  

Science Conference Proceedings (OSTI)

In this paper we design an interval observer for the estimation of unmeasured variables of uncertain bioreactors. The observer is based on a bounded error observer, as proposed in [Lemesle, V., & Gouze, J.-L. (2005). Hybrid bounded error observers for ... Keywords: Bounded error observers, Interval observers, Uncertain systems, Wastewater treatment

Marcelo Moisan; Olivier Bernard; Jean-Luc Gouz

2009-01-01T23:59:59.000Z

246

Green Thunderstorms Observed  

Science Conference Proceedings (OSTI)

Green thunderstorms have been observed from time to time in association with deep convection or severe weather events. Often the green coloration has been attributed to hail or to reflections of light from green foliage on the ground. Some ...

Frank W. Gallagher III; William H. Beasley; Craig F. Bohren

1996-12-01T23:59:59.000Z

247

Tropical observability and predictability  

E-Print Network (OSTI)

Many studies have investigated tropical data assimilation in the context of global models or specifically for tropical cyclones, but relatively few have focused on the mesoscale predictability and observability of the ...

Whitcomb, Timothy Robert

2008-01-01T23:59:59.000Z

248

Multifunctional Mesoscale Observing Networks  

Science Conference Proceedings (OSTI)

More than 120 scientists, engineers, administrators, and users met on 810 December 2003 in a workshop format to discuss the needs for enhanced three-dimensional mesoscale observing networks. Improved networks are seen as being critical to ...

Walter F. Dabberdt; Thomas W. Schlatter; Frederick H. Carr; Elbert W. Joe Friday; David Jorgensen; Steven Koch; Maria Pirone; F. Martin Ralph; Juanzhen Sun; Patrick Welsh; James W. Wilson; Xiaolei Zou

2005-07-01T23:59:59.000Z

249

Optimum Sampling Designs for a GliderMooring Observing Network  

Science Conference Proceedings (OSTI)

Ocean observing systems (OOSs) constituted by moorings and gliders are becoming relevant in oceanographic and climate studies. In these observing networks, the temporal variability is captured by mooring observations, while the spatial variability ...

A. Alvarez; B. Mourre

2012-04-01T23:59:59.000Z

250

Automated Surface Observing System (ASOS) General System Description  

E-Print Network (OSTI)

cost Quarterly testing; Batteries replaced every 4 - 5 yrs (> $8.5K) Limited maintenance costs yearly Installation & Maintenance) Estimated Cost ea. Qty Total Battery Backup $ 14,000 135 $ 1,890,000 Engine;ACU Option Comparison Battery Bank to power Hydrogen Fuel Engine Generator the existing UPS Cell

251

Information Concerning Reliability Impacts under Various System  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Information Concerning Reliability Impacts under Various System Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Information Concerning Reliability Impacts under Various System Configurations of the Mirant Potomac River Plant Docket No. EO-05-01: PJM Interconnection, L.L.C. and PEPCO Holdings, Inc. is hereby providing you with additional information concerning reliability impacts under various system conditions associated with the unavailability of the Potomac River Generating Station to serve load in the D.C. area. Also enclosed as part of this submittal is material provided by PEPCO (balance of sentence redacted) In addition, there is a discussion concerning the impacts of demand side response in addressing this situation. Information Concerning Reliability Impacts under Various System

252

A Mobile Mesonet for Finescale Meteorological Observations  

Science Conference Proceedings (OSTI)

A mobile weather observing system (mobile mesonet) was designed to augment existing meteorological networks in the study of severe local storms and other mesoscale weather phenomena in conjunction with the Verification of the Origins of Rotation ...

Jerry M. Straka; Erik N. Rasmussen; Sherman E. Fredrickson

1996-10-01T23:59:59.000Z

253

The Duke University Helicopter Observation Platform  

Science Conference Proceedings (OSTI)

To establish a helicopter observation platform (HOP), Duke University has purchased a Bell 206 Jet Ranger helicopter, which has been equipped with a three-dimensional, high-frequency positioning and attitude-recording system, a data acquisition ...

Roni Avissar; Heidi E. Holder; Nathan Abehserra; M. Adam Bolch; Patrick Canning; Jose Magalhaes; Robert L. Walko; K. Novick; G. Katul; Katya Prince; Naoki Matayoshi; Kristina M. Johnson

2009-07-01T23:59:59.000Z

254

Communications in the observation limited regime  

E-Print Network (OSTI)

We consider the design of communications systems when the principal cost is observing the channel, as opposed to transmit energy per bit or spectral efficiency. This is motivated by energy constrained communications devices ...

Bhardwaj, Manish, 1976-

2009-01-01T23:59:59.000Z

255

Towards New Platform Technology for Sustained Observations  

E-Print Network (OSTI)

of offshore oil and gas companies may make for a larger market and may help reduce costs. Docking systems such as drifting and profiling floats already complement research, survey and voluntary ships. Floats are but one. Introduction Ocean observations rely on platforms and sensors. Programs of sustained observations naturally

Griffiths, Gwyn

256

Studies on multi-phase equilibrium separation of hydrocarbon/water systems  

E-Print Network (OSTI)

Equations of State (EOS) have been used successfully in compositional simulators to describe phase behavior of reservoir crude and gas condensates without water. The three-phase behavior of water/reservoir crude oils both at reservoir and steam flooding temperature has not yet been successfully predicted by an EOS. Recent publications show that incorporation of the association concept into simple cubic equations such as Peng-Robinson EOS significantly improves phase behavior prediction of water/hydrocarbon and nonhydrate systems, but there are still some numerical difficulties in the pre-diction of three phase flash equilibria. In this thesis we presented, an efficient procedure that will help us eliminate common numerical difficulties in predicting three-phase equilibria for systems containing water, and simplify the programming technique. This scheme checks the existence of three-phase flash at given reservoir conditions, and if three-phase flash (vapor-oleic-aqueous) doesn't exist, it automatically switches to check correct type of two-phase flash (vapor-oleic, vapor-aqueous, or oleic-aqueous). This convergence scheme is used in an EOS-simulator (VLLESIM), which uses nine different EOS's and van der Waals mixing rules, to accurately describe multi-phase equilibrium separation of hydrocarbon/water systems. VLLESIM will be validated with literature data and experimental results obtained from two different experimental setups, for different multi-component hydrocarbon/water systems, for hydrocarbon component varying from C6 to C20. PVT-VLLE apparatus can provide on-line compositional analysis and phase volumes of all equilibrium phases for temperatures up to 350 'F and an Isochoric Steam Distillation Cell (ISDC) can provide only vapor phase compositions, but it can be used up to 500 'F. VLLESIM will then be used to study the effect of temperature, pressure and molecular weight of hydrocarbon components on multiphase equilibria of different hydrocarbon/water systems. Detailed analysis is also provided in this thesis, of the effect of increasing concentration of different hydrocarbon components on the size of the three-phase region for ranges of temperature and pressure mostly prevalent under reservoir conditions.

Chawla, Inderjit Singh

1995-01-01T23:59:59.000Z

257

Arctic Lower Troposphere Observed Structure (ALTOS)  

NLE Websites -- All DOE Office Websites (Extended Search)

Lower Troposphere Observed Structure (ALTOS) Lower Troposphere Observed Structure (ALTOS) will raise and lower a heavily instrumented tethered balloon system at regular intervals in the lower 2 kilometers of the atmosphere at Oliktok Point. Data obtained during the ALTOS campaign will provide a statistically significant set of observed in situ cloud properties for validating retrieval algorithms and help scientists reduce the uncertainty in the radiative forcing and heating rates on hourly time scales. The data will also help researchers gain a better understanding of the driving processes that control climate changes and determine the state of the Arctic climate system. Collaborators Science Team: The Pennsylvania State University, Stratton

258

International Journal of Systems Biology  

NLE Websites -- All DOE Office Websites (Extended Search)

|| Bioinfo Publications || 57 || Bioinfo Publications || 57 International Journal of Systems Biology ISSN: 0975-2900 & E-ISSN: 0975-9204, Volume 4, Issue 1, 2013, pp.-57-72. Available online at http://www.bioinfopublication.org/jouarchive.php?opt=&jouid=BPJ0000252 IWATA M. 1 , SHIRAISHI F. 1 AND VOIT E.O. 2 * 1 Section of Bio-process design, Department of Bioscience and Biotechnology, Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1, Hakozaki, Higashi-Ku, Fukuoka 820-8581, Japan. 2 The Wallace H. Coulter, Department of Biomedical Engineering at Georgia Institute of Technology and Emory University, 313 Ferst Drive, Suite 4103, Atlanta, GA 30332-0535, U.S.A. *Corresponding Author: Email- eberhard.voit@bme.gatech.edu Received: August 05, 2013; Accepted: September 03, 2013

259

Observer-based fault detection for nuclear reactors  

E-Print Network (OSTI)

This is a study of fault detection for nuclear reactor systems. Basic concepts are derived from fundamental theories on system observers. Different types of fault- actuator fault, sensor fault, and system dynamics fault ...

Li, Qing, 1972-

2001-01-01T23:59:59.000Z

260

Observations of Edge Turbulence  

NLE Websites -- All DOE Office Websites (Extended Search)

Edge Turbulence Edge Turbulence near the X-point of Alcator C-Mod APS-2007 (1) J.L. Terry, S.J. Zweben*, B. LaBombard, I. Cziegler, O. Grulke + , D.P. Stotler* MIT - Plasma Science and Fusion Center *Princeton Plasma Physics Laboratory + MPI for Plasma Physics, EURATOM Assoc., Greifswald, Germany American Physical Society - Div. of Plasma Physics Orlando, FL Nov. 12 - Nov. 16, 2007 APS-2007 (2) Background and Motivation for "Xpt-region" View Strong edge turbulence has been observed in nearly all magnetic confinement devices. Desire predictive capability Most previous measurements made near outboard midplane where the turbulence has the following main features: - generation is ballooning-like (absent at inboard midplane, etc.) - filaments/blobs moves radially outward with some poloidal motion

Note: This page contains sample records for the topic "observing system eos" 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

Multilayer Cloud Detection with the MODIS Near-Infrared Water Vapor Absorption Band  

Science Conference Proceedings (OSTI)

Data Collection 5 processing for the Moderate Resolution Imaging Spectroradiometer (MODIS) on board the NASA Earth Observing System (EOS) Terra and Aqua spacecraft includes an algorithm for detecting multilayered clouds in daytime. The main ...

Galina Wind; Steven Platnick; Michael D. King; Paul A. Hubanks; Michael J. Pavolonis; Andrew K. Heidinger; Ping Yang; Bryan A. Baum

2010-11-01T23:59:59.000Z

262

Synergistic Use of MODIS and AIRS in a Variational Retrieval of Cloud Parameters  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectroradiometer (MODIS) and the Atmospheric Infrared Sounder (AIRS) measurements from the Earth Observing System's (EOS's) Aqua satellite enable global monitoring of the distribution of clouds. MODIS is able to ...

Jun Li; W. Paul Menzel; Wenjian Zhang; Fengying Sun; Timothy J. Schmit; James J. Gurka; Elisabeth Weisz

2004-11-01T23:59:59.000Z

263

AIRS Subpixel Cloud Characterization Using MODIS Cloud Products  

Science Conference Proceedings (OSTI)

The Moderate Resolution Imaging Spectroradiometer (MODIS) and the Atmospheric Infrared Sounder (AIRS) measurements from the Earth Observing System's (EOS's) Aqua satellite enable improved global monitoring of the distribution of clouds. MODIS is ...

Jun Li; W. Paul Menzel; Fengying Sun; Timothy J. Schmit; James Gurka

2004-08-01T23:59:59.000Z

264

Observations of Circumstellar Disks  

E-Print Network (OSTI)

The imaging of disks around young stars presents extreme challenges in high dynamic range, angular resolution, and sensitivity. Recent instrumental advances have met these challenges admirably, leading to a marked increase in imaging discoveries. These have opened up a new era in studies of the origin of planetary systems. Questions about our own solar system's formation, and of the prevalence of extra-solar planets, are now addressed with complementary techniques at different wavelengths. Optical and near-infrared images detail scattered light from disks at the highest possible resolution. Mid-infrared, sub-millimeter, and millimeter-wave techniques probe thermal dust continuum radiation. Millimeter-wave interferometry details the small-scale structure of the molecular gas. Kinematic imaging studies affirm the disk interpretation of mm-wave continuum surveys, and the high incidence rate for solar nebula analogs. Inner holes, azimuthal asymmetries, and gaps suggest the presence of underlying planetary bodies. The combined techniques provide a multi-dimensional picture of disks in time and have strengthened our understanding of the connection between disks and planets. Future progress is assured by the presence of much-improved imaging capability looming on the horizon.

David W. Koerner

2001-03-28T23:59:59.000Z

265

Microsoft Word - EJStrategy_EO12898.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

3 3 U.S. Department of Energy Environmental Justice Strategy Executive Order 12898 This document does not reflect comments from Department of Energy stakeholders, based on concerns from a majority of them about the short time frame for review. Since this is a living document, we will incorporate our stakeholders' comments, as appropriate, after we receive and review them. The Department of Energy regards the concerns and opinions of our stakeholders as crucial to completing our final environmental justice strategy. Table of Contents * Executive Summary * Vision Statement * Goal 1 - Identify and Address Programs, Policies, and Activities of the Department that may have Disporportionately High and Adverse Human Health or Environmental Effects

266

Reducing Regulatory Burden EO 13563 Third RFI  

Energy.gov (U.S. Department of Energy (DOE))

As part of its implementation of Executive Order 13563, Improving Regulation and Regulatory Review, issued by the President on January 18, 2011, the Department of Energy (Department or DOE) is...

267

CSA EO - CI Survey Results DRAFT  

Science Conference Proceedings (OSTI)

... pretty sure we already crossed that bridge without realizing ... the buyers of IT trading pipes to resell ... and Digital Insight's infrastructure support of small ...

2013-04-10T23:59:59.000Z

268

FAQ on EO 13101 Requirements and Reporting  

NLE Websites -- All DOE Office Websites (Extended Search)

For more info, contact TACOM's Team Tire at 810-574-6303. Q: We purchase specialized "plastic bags" for radioactive waste packaging. We are not recording these as designated...

269

Vicarious Radiometric Calibrations of EOS Sensors  

Science Conference Proceedings (OSTI)

Four methods for the in-flight radiometric calibration and cross calibration of multispectral imaging sensors are described. Three make use of ground-based reflectance, irradiance, and radiance measurements in conjunction with atmospheric ...

Phlip N. Slater; Stuart F. Biggar; Kurtis J. Thome; David I. Gellman; Paul R. Spyak

1996-04-01T23:59:59.000Z

270

Asymptotically efficient parameter estimation using quantized output observations  

Science Conference Proceedings (OSTI)

This paper studies identification of systems in which only quantized output observations are available. An identification algorithm for system gains is introduced that employs empirical measures from multiple sensor thresholds and optimizes their convex ... Keywords: Cramr-Rao bound, Efficient estimator, Quantized observation, System identification

Le Yi Wang; G. George Yin

2007-07-01T23:59:59.000Z

271

Spin Observables in Kaon Electroproduction  

DOE Green Energy (OSTI)

The CEBAF accelerator at Jefferson Lab has proven to be a powerful tool for use in studying the electromagnetic production of hadronic systems containing a strange constituent quark. The electromagnetic probe only marginally disturbs the system being investigated, and is well understood. Its use as a means to probe the internal structure of hadronic systems has been well documented. Among the most studied of these hadronic systems, currently, is the nucleon. The unique opportunities afforded by the use of polarized, high-current, high-duty-factor electron beams provides an even more powerful probe of the electromagnetic structure of hadronic systems; the study of the spin dependence of the electromagnetic production and weak decay of the hyperon, specifically the {Lambda}-hyperon, becomes feasible. An experiment to study the electroproduction of the {Lambda} as a function of virtual photon momentum transfer, angle, and energy, using spin polarization observables in order to extract insights into its production and weak decay dynamics has already been approved at Jefferson Lab (E98-101; Spin Polarization in Kaon Electroproduction). The experiment aims to study the mechanism of polarization transfer in the reaction e + p {yields} e' + K + {Lambda}. The experiment requires only moderate momentum resolution and no specialized equipment other than that associated with the polarized beam. The data quality is expected to improve with higher electron beam energies, for higher Q{sup 2} measurements. Additionally, at higher energies the increased virtual photon flux allows the 4experiment to be run at lower currents (and therefore high beam polarization). A polarized electron beam and an unpolarized cryogenic hydrogen target are required. The study uses the electron arm spectrometer and the hadron arm spectrometer to detect the scattered electron and the electroproduced kaon before it decays in flight, respectively. Additionally, the hadron arm will be used to detect the proton from the hyperon decay. The hadron arm used as a hyperon tagger, in general terms, will detect the protons resulting from the weak decays of the hyperons in {Lambda} {yields} p + {pi}.

O.K. Baker

1998-06-01T23:59:59.000Z

272

Toward Objective, Standardized Intensity Estimates from Surface Wind Speed Observations  

Science Conference Proceedings (OSTI)

Extreme wind climatology and event-specific intensity assessments rely heavily on surface wind field observations. The most widely used platforms sited at airports are the Automated Surface Observing System (ASOS) and its predecessor, the ...

Forrest J. Masters; Peter J. Vickery; Phuong Bacon; Edward N. Rappaport

2010-12-01T23:59:59.000Z

273

Observing the GalpagosEUC Interaction: Insights and Challenges  

Science Conference Proceedings (OSTI)

Although sustained observations yield a description of the mean equatorial current system from the western Pacific to the eastern terminus of the Tropical Atmosphere Ocean (TAO) array, a comprehensive observational dataset suitable for describing ...

Kristopher B. Karnauskas; Raghu Murtugudde; Antonio J. Busalacchi

2010-12-01T23:59:59.000Z

274

Strong planning under partial observability  

Science Conference Proceedings (OSTI)

Rarely planning domains are fully observable. For this reason, the ability to deal with partial observability is one of the most important challenges in planning. In this paper, we tackle the problem of strong planning under partial observability in ... Keywords: Binary decision diagrams, Heuristic search in belief space, Planning in nondeterministic domains, Planning under partial observability, Symbolic model checking

Piergiorgio Bertoli; Alessandro Cimatti; Marco Roveri; Paolo Traverso

2006-04-01T23:59:59.000Z

275

Observing Strategy and Observation Targeting for Tropical Cyclones Using Ensemble-Based Sensitivity Analysis and Data Assimilation  

Science Conference Proceedings (OSTI)

An ensemble Kalman filter data assimilation system for the Weather Research and Forecasting Model is used with ensemble-based sensitivity analysis to explore observing strategies and observation targeting for tropical cyclones. The case selected ...

Baoguo Xie; Fuqing Zhang; Qinghong Zhang; Jonathan Poterjoy; Yonghui Weng

2013-05-01T23:59:59.000Z

276

Bell-type inequalities for arbitrary observables  

E-Print Network (OSTI)

We derive a Bell-type inequality for observables with arbitrary spectra. For the case of continuous variable systems we propose a possible experimental violation of this inequality, by using squeezed light and homodyne detection together with methods of quantum-state reconstruction. It is shown that the violation is also possible for realistic detection efficiencies.

E. Shchukin W. Vogel

2009-02-23T23:59:59.000Z

277

Lidar Observations of Ship Spray Plumes  

Science Conference Proceedings (OSTI)

As part of the Monterey Area Ship Track experiment, which was designed to study ship-generated cloud tracks, ship-based measurements were made by a gyroscopically stabilized scanning lidar system. This paper focuses on the spray plume observed by ...

William P. Hooper; Jeffrey E. James

2000-08-01T23:59:59.000Z

278

Analysis of Land Skin Temperature Using AVHRR Observations  

Science Conference Proceedings (OSTI)

Using satellite remote sensing techniques to take quantitative observations of the climate system will advance our knowledge and ability to model the climate system and its changes. Polar-orbiting satellite records of global land surface skin ...

Menglin Jin

2004-04-01T23:59:59.000Z

279

Monthly Temperature Observations for Uganda  

Science Conference Proceedings (OSTI)

The International Surface Temperature Initiative is a worldwide effort to locate weather observations, digitize them for public access, and attach provenance to them. As part of that effort, this study sought documents of temperature observations ...

John R. Christy

2013-10-01T23:59:59.000Z

280

Marine Observations of Old Weather  

Science Conference Proceedings (OSTI)

Weather observations are vital for climate change monitoring and prediction. For the world's oceans, there are many meteorological and oceanographic observations available back to the mid-twentieth century, but coverage is limited in earlier ...

Philip Brohan; Rob Allan; J. Eric Freeman; Anne M. Waple; Dennis Wheeler; Clive Wilkinson; Scott Woodruff

2009-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

Ensemble Transformation and Adaptive Observations  

Science Conference Proceedings (OSTI)

Suppose that the geographical and temporal resolution of the observational network could be changed on a daily basis. Of all the possible deployments of observational resources, which particular deployment would minimize expected forecast error? ...

Craig H. Bishop; Zoltan Toth

1999-06-01T23:59:59.000Z

282

Stratospheric Satellites for Earth Observations  

Science Conference Proceedings (OSTI)

Advanced, robust, yet inexpensive observational platforms and networks of platforms will make revolutionary Earth science observations possible in the next 30 years. One new platform concept that is needed is a long-duration stratospheric balloon ...

Alexey Pankine; Kerry Nock; Zhanqing Li; David Parsons; Michael Purucker; Warren Wiscombe; Elliot Weinstock

2009-08-01T23:59:59.000Z

283

Observation  

NLE Websites -- All DOE Office Websites (Extended Search)

the large mass of the implies an affinity to Higgs bosons. Within the SM, the Higgs boson is related to the mechanism by which the quarks, leptons and force-carrying gauge...

284

State observer for synchronous motors  

DOE Patents (OSTI)

A state observer driven by measurements of phase voltages and currents for estimating the angular orientation of a rotor of a synchronous motor such as a variable reluctance motor (VRM). Phase voltages and currents are detected and serve as inputs to a state observer. The state observer includes a mathematical model of the electromechanical operation of the synchronous motor. The characteristics of the state observer are selected so that the observer estimates converge to the actual rotor angular orientation and velocity, winding phase flux linkages or currents.

Lang, Jeffrey H. (Waltham, MA)

1994-03-22T23:59:59.000Z

285

Apparatus for observing a hostile environment  

DOE Patents (OSTI)

An apparatus is provided for observing a hostile environment, comprising a housing and a camera capable of insertion within the housing. The housing is a double wall assembly with an inner and outer wall with an hermetically sealed chamber therebetween. A housing for an optical system used to observe a hostile environment is provided, comprising a transparent, double wall assembly. The double wall assembly has an inner wall and an outer wall with an hermetically sealed chamber therebetween. The double wall assembly has an opening and a void area in communication with the opening. The void area of the housing is adapted to accommodate the optical system within said void area. An apparatus for protecting an optical system used to observe a hostile environment is provided comprising a housing; a tube positioned within the housing; and a base for supporting the housing and the tube. The housing comprises a double wall assembly having an inner wall and an outerwall with an hermetically sealed chamber therebetween. The tube is adapted to house the optical system therein.

Nance, Thomas A. (Aiken, SC); Boylston, Micah L. (Williston, SC); Robinson, Casandra W. (Trenton, SC); Sexton, William C. (Aiken, SC); Heckendorn, Frank M. (Aiken, SC)

2000-01-01T23:59:59.000Z

286

Arithmetic, mutually unbiased bases and complementary observables  

Science Conference Proceedings (OSTI)

Complementary observables in quantum mechanics may be viewed as Frobenius structures in a dagger monoidal category, such as the category of finite dimensional Hilbert spaces over the complex numbers. On the other hand, their properties crucially depend on the discrete Fourier transform and its associated quantum torus, requiring only the finite fields that underlie mutually unbiased bases. In axiomatic topos theory, the complex numbers are difficult to describe and should not be invoked unnecessarily. This paper surveys some fundamentals of quantum arithmetic using finite field complementary observables, with a view considering more general axiom systems.

Sheppeard, M. D. [Oxford University Computing Laboratory, Wolfson Building, Parks Rd., Oxford OX1 3QD (United Kingdom)

2010-02-15T23:59:59.000Z

287

ENVIRONMENTAL MANAGEMENT SYSTEM OBJECTIVES AND TARGETS  

NLE Websites -- All DOE Office Websites (Extended Search)

Objectives & Targets Rev. 7/17/13 Objectives & Targets Rev. 7/17/13 ENVIRONMENTAL MANAGEMENT SYSTEM OBJECTIVES AND TARGETS 2012 PROGRESS REPORT for SOUTHWESTERN POWER ADMINISTRATION Activity Legal Requirement Aspect Objective Target** see important note Target Achieved Details Real Estate Management DOE O 436.1 E.O. 13423 & 13514 EPAct 1992 and 2005 EISA 2007 NECPA 1978 Natural resource depletion and GHG emissions from resource intensive facilities Increase sustainability of facility resources, reduce energy and water consumption, reduce impacts to natural resources from facility usage 1) Meter 90% of electricity by September 2012 2) Meter 90% of gas, steam, and water by September 2015 3) 30% energy intensity reduction by 2015 from baseline 2003 4) Reduce water consumption intensity 2%

288

Global ice cloud observations: radiative properties and statistics from moderate-resolution imaging spectroradiometer measurements  

E-Print Network (OSTI)

Ice clouds occur quite frequently, yet so much about these clouds is unknown. In recent years, numerous investigations and field campaigns have been focused on the study of ice clouds, all with the ultimate goal of gaining a better understanding of microphysical and optical properties, as well as determining the radiative impact. Perhaps one of the most recognized instruments used for such research is the Moderate-resolution Imaging Spectroradiometer (MODIS), carried aboard the NASA EOS satellites Terra and Aqua. The present research aims to support ongoing efforts in the field of ice cloud research by use of observations obtained from Terra and Aqua MODIS. First, a technique is developed to infer ice cloud optical depth from the MODIS cirrus reflectance parameter. This technique is based on a previous method developed by Meyer et al. (2004). The applicability of the algorithm is demonstrated with retrievals from level-2 and -3 MODIS data. The technique is also evaluated with the operational MODIS cloud retrieval product and a method based on airborne ice cloud observations. From this technique, an archive of daily optical depth retrievals is constructed. Using simple statistics, the global spatial and temporal distributions of ice clouds are determined. Research has found that Aqua MODIS observes more frequent ice clouds and larger optical depths and ice water paths than does Terra MODIS. Finally, an analysis of the time series of daily optical depth values revealed that ice clouds at high latitudes, which are most likely associated with synoptic scale weather sytems, persist long enough to move with the upper level winds. Tropical ice clouds, however, dissipate more rapidly, and are in all likelihood associated with deep convective cells.

Meyer, Kerry Glynne

2007-08-01T23:59:59.000Z

289

Cornman's definition of observation terms  

Science Conference Proceedings (OSTI)

reconcile what is described in mentalistic terms with materialism. ... It is clearly important that the observation terms should not include terms which are...

290

Non-perturbative effects for the Quark-Gluon Plasma equation of state  

Science Conference Proceedings (OSTI)

The non-perturbative effects for the Quark-Gluon Plasma (QGP) equation of state (EoS) are considered. The modifications of the bag model EoS are constructed to satisfy the main qualitative features observed for the QGP EoS in the lattice QCD calculations. A quantitative comparison with the lattice results is done for the SU(3) gluon plasma and for the QGP with dynamical quarks. Our analysis advocates a negative value of the bag constant B.

Begun, V. V., E-mail: viktor.begun@gmail.com; Gorenstein, M. I., E-mail: goren@bitp.kiev.ua; Mogilevsky, O. A. [Bogolyubov Institute for Theoretical Physics (Ukraine)

2012-07-15T23:59:59.000Z

291

Rapid Scan AERI Observations: Benefits and Analysis  

NLE Websites -- All DOE Office Websites (Extended Search)

Rapid Scan AERI Observations: Benefits and Analysis Rapid Scan AERI Observations: Benefits and Analysis W. F. Feltz, D. D. Turner, R. O. Knuteson, and R. G. Dedecker Space Science and Engineering Center Cooperative Institute of Mesoscale Meteorological Studies University of Wisconsin-Madison Madison, Wisconsin D. D. Turner Pacific Northwest National Laboratory Richland, Washington Introduction The U.S. Department of Energy's (DOE's) Atmospheric Radiation Measurement (ARM) Program has funded the development of the atmospheric emitted radiance interferometer (AERI). This has led to a hardened, autonomous system that measures downwelling infrared (IR) radiance at high-spectral resolution. Seven AERI systems have been deployed around the world as part of the ARM Program. The initial goal of these instruments was to characterize the clear-sky IR emission from the atmosphere,

292

Moored Observations of Precipitation Temperature  

Science Conference Proceedings (OSTI)

Direct observations of precipitation temperature were made from a surface buoy deployed for four months in the western Pacific warm pool. The observed rain droplet temperatures are equal to the wet-bulb temperature to within the measured wet-bulb ...

Steven P. Anderson; Alan Hinton; Robert A. Weller

1998-08-01T23:59:59.000Z

293

PRECISION POINTING OF IBEX-Lo OBSERVATIONS  

SciTech Connect

Post-launch boresight of the IBEX-Lo instrument on board the Interstellar Boundary Explorer (IBEX) is determined based on IBEX-Lo Star Sensor observations. Accurate information on the boresight of the neutral gas camera is essential for precise determination of interstellar gas flow parameters. Utilizing spin-phase information from the spacecraft attitude control system (ACS), positions of stars observed by the Star Sensor during two years of IBEX measurements were analyzed and compared with positions obtained from a star catalog. No statistically significant differences were observed beyond those expected from the pre-launch uncertainty in the Star Sensor mounting. Based on the star observations and their positions in the spacecraft reference system, pointing of the IBEX satellite spin axis was determined and compared with the pointing obtained from the ACS. Again, no statistically significant deviations were observed. We conclude that no systematic correction for boresight geometry is needed in the analysis of IBEX-Lo observations to determine neutral interstellar gas flow properties. A stack-up of uncertainties in attitude knowledge shows that the instantaneous IBEX-Lo pointing is determined to within {approx}0.{sup 0}1 in both spin angle and elevation using either the Star Sensor or the ACS. Further, the Star Sensor can be used to independently determine the spacecraft spin axis. Thus, Star Sensor data can be used reliably to correct the spin phase when the Star Tracker (used by the ACS) is disabled by bright objects in its field of view. The Star Sensor can also determine the spin axis during most orbits and thus provides redundancy for the Star Tracker.

Hlond, M.; Bzowski, M. [Space Research Centre of the Polish Academy of Sciences, 18A Bartycka, 00-716 Warsaw (Poland); Moebius, E.; Kucharek, H.; Heirtzler, D.; Schwadron, N. A.; Neill, M. E. O'; Clark, G. [Space Science Center and Department of Physics, University of New Hampshire, Morse Hall, 8 College Road, Durham, NH 03824 (United States); Crew, G. B. [Haystack Observatory, Massachusetts Institute of Technology, Route 40, Westford, MA 01886 (United States); Fuselier, S. [Lockheed Martin, Space Physics Lab, 3251 Hanover Street, Palo Alto, CA 94304 (United States); McComas, D. J., E-mail: mhlond@cbk.waw.pl, E-mail: eberhard.moebius@unh.edu, E-mail: gbc@haystack.mit.edu, E-mail: stephen.a.fuselier@linco.com, E-mail: DMcComas@swri.edu, E-mail: DMcComas@swri.edu [Southwest Research Institute, P.O. Drawer 28510, San Antonio, TX 78228 (United States)

2012-02-01T23:59:59.000Z

294

Properties of tropical convection observed by ARM millimeter-radars  

NLE Websites -- All DOE Office Websites (Extended Search)

Properties of tropical convection observed by ARM millimeter-radars Properties of tropical convection observed by ARM millimeter-radars Haynes, John Colorado State University Stephens, Graeme Colorado State University Category: Cloud Properties The results of an analysis of tropical cloud systems observed from a variety of vertically pointing radar systems are described. In particular, observations taken during five years of operation of the ARM millimeter wavelength radar system (MMCR) at Manus Island in the Tropical West Pacific region are characterized into cloud classes according to the radar reflectivity structures of these cloud systems, associated rainfall, and surface radiative properties. These observations of cloud properties are composited with respect to various phases of the Madden Julian Oscillation, which is a dominant mode of variability at Manus Island. A method of better

295

Doppler Radar Observations of Mammatus  

Science Conference Proceedings (OSTI)

Observations of mammatus-like cloud features associated with a convective rain shower were obtained using a vertically pointing 8-mm-wavelength Doppler radar. The radar's excellent sensitivity and resolution allowed even very weak, finescale ...

Brooks E. Martner

1995-10-01T23:59:59.000Z

296

Short-Term Probabilistic Forecasts of Ceiling and Visibility Utilizing High-Density Surface Weather Observations  

Science Conference Proceedings (OSTI)

An automated statistical system that utilizes regional high-density surface observations to forecast low ceiling and visibility events in the upper Midwest is presented. The system is based solely upon surface observations as predictors, ...

Stephen M. Leyton; J. Michael Fritsch

2003-10-01T23:59:59.000Z

297

Observational Tests of Modified Gravity  

E-Print Network (OSTI)

Modified gravity theories have richer observational consequences for large-scale structure than conventional dark energy models, in that different observables are not described by a single growth factor even in the linear regime. We examine the relationships between perturbations in the metric potentials, density and velocity fields, and discuss strategies for measuring them using gravitational lensing, galaxy cluster abundances, galaxy clustering/dynamics and the ISW effect. We show how a broad class of gravity theories can be tested by combining these probes. A robust way to interpret observations is by constraining two key functions: the ratio of the two metric potentials, and the ratio of the Gravitational ``constant'' in the Poisson equation to Newton's constant. We also discuss quasilinear effects that carry signatures of gravity, such as through induced three-point correlations. Clustering of dark energy can mimic features of modified gravity theories and thus confuse the search for distinct signatures of such theories. It can produce pressure perturbations and anisotropic stresses, which breaks the equality between the two metric potentials even in general relativity. With these two extra degrees of freedom, can a clustered dark energy model mimic modified gravity models in all observational tests? We show with specific examples that observational constraints on both the metric potentials and density perturbations can in principle distinguish modifications of gravity from dark energy models. We compare our result with other recent studies that have slightly different assumptions (and apparently contradictory conclusions).

Bhuvnesh Jain; Pengjie Zhang

2007-09-17T23:59:59.000Z

298

Regional-Scale Flows in Mountainous Terrain. Part I: A Numerical and Observational Comparison  

Science Conference Proceedings (OSTI)

This study uses observed data and a numerical simulation to examine the generation of thermally driven flows across the Colorado mountain barrier on meso-? to meso-? scales. The observations were collected from remote surface observing systems at ...

James E. Bossert; William R. Cotton

1994-07-01T23:59:59.000Z

299

Exploratory Analysis of the Difference between Temperature Observations Recorded by ASOS and Conventional Methods  

Science Conference Proceedings (OSTI)

The Automated Surface Observing System is currently replacing conventional observations at the National Weather Service, the Federal Aviation Administration, and other stations that report hourly observations. From a climatological viewpoint, it ...

Nathaniel B. Guttman; C. Bruce Baker

1996-12-01T23:59:59.000Z

300

Direct Observation of Oxygen Superstructures in Manganites  

Science Conference Proceedings (OSTI)

We report the observation of superstructures associated with the oxygen 2p states in two prototypical manganites using x-ray diffraction at the oxygen K edge. In the stripe order system Bi{sub 0.31}Ca{sub 0.69}MnO{sub 3}, hole-doped O states are orbitally ordered, at the same propagation vector as the Mn orbital ordering, but no oxygen charge stripes are found at this periodicity. In La{sub 7/8}Sr{sub 1/8}MnO{sub 3}, we observe a 2p charge ordering described by alternating hole-poor and hole-rich MnO planes that is consistent with some of the recent predictions.

Grenier, S.; Tonnerre, J. M. [Institut Neel, CNRS and Universite Joseph Fourier, BP 166, F-38042 Grenoble Cedex 9 (France); Thomas, K. J.; Hill, J. P. [Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Staub, U.; Bodenthin, Y.; Garcia-Fernandez, M. [Swiss Light Source, Paul Sherrer Institut, 5232 Villigen (Switzerland); Scagnoli, V. [European Synchrotron Radiation Facility, BP 220, F-38043 Grenoble Cedex 9 (France); Kiryukhin, V.; Cheong, S-W.; Kim, B. G. [Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854 (United States)

2007-11-16T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


301

Direct observation of time reversal violation  

SciTech Connect

A direct evidence for Time Reversal Violation (TRV) means an experiment that, considered by itself, clearly shows TRV independent of, and unconnected to, the results for CP Violation. No existing result before the recent BABAR experiment with entangled neutral B mesons had demonstrated TRV in this sense. There is a unique opportunity for a search of TRV with unstable particles thanks to the Einstein-Podolsky-Rosen (EPR) Entanglement between the two neutral mesons in B, and PHI, Factories. The two quantum effects of the first decay as a filtering measurement and the transfer of information to the still living partner allow performing a genuine TRV asymmetry with the exchange of 'in' and 'out' states. With four independent TRV asymmetries, BABAR observes a large deviation of T-invariance with a statistical significance of 14 standard deviations, far more than needed to declare the result as a discovery. This is the first direct observation of TRV in the time evolution of any system.

Bernabeu, J. [Department of Theoretical Physics, University of Valencia, and IFIC, Joint Centre Univ. Valencia-CSIC (Spain)

2013-06-12T23:59:59.000Z

302

Automatic Cloud Tracking Applied to GOES and METEOSAT Observations  

Science Conference Proceedings (OSTI)

Improvements to the SRI automatic cloud-tracking system are described that enable it to operate on multilayer clouds associated with severe storms. The improved method has been tested using rapid-scan observations of Hurricane Eloise obtained by ...

Roy M. Endlich; Daniel E. Wolf

1981-03-01T23:59:59.000Z

303

Antarctic Meteorological Observations on the GTS during the FROST Project  

Science Conference Proceedings (OSTI)

An assessment is made of the availability of Antarctic synoptic observations on the World Meteorological Organization (WMO) Global Telecommunication System (GTS) during the trial periods (59 July 1993 and 115 February 1994) and winter and ...

Steven Colwell; John Turner

1999-12-01T23:59:59.000Z

304

Cloud Model-Based Simulation of Spaceborne Radar Observations  

Science Conference Proceedings (OSTI)

Simulations of observations from potential spaceborne radars are made based on storm structure generated from the three-dimensional (3D) Goddard cumulus ensemble model simulation of an intense overland convective system. Five frequencies of 3, 10,...

H-Y. M. Yeh; N. Prasad; R. Meneghini; W-K. Tao; J. A. Jones; R. F. Adler

1995-01-01T23:59:59.000Z

305

Personal Computers, Weather Observations, and the National Climatic Data Center  

Science Conference Proceedings (OSTI)

The personal computer (PC) has become an important part of meteorological observing, telecommunications, forecasting, research, and data-management systems. The National Climatic Data Center (NCDC) is the nation's quality-control and archival ...

Richard Heim Jr.

1988-05-01T23:59:59.000Z

306

On the Deterministic Observation Impact Guidance: A Geometrical Perspective  

Science Conference Proceedings (OSTI)

An optimal use of the atmospheric data in numerical weather prediction requires an objective assessment of the value added by observations to improve the analyses and forecasts of a specific data assimilation system (DAS). This research brings ...

Dacian N. Daescu

2009-10-01T23:59:59.000Z

307

Observable signatures of general relativistic dynamics in compact binaries  

E-Print Network (OSTI)

The effects of general relativity (GR) in astrophysical systems are often difficult to calculate, but they can have important consequences for observables. This thesis considers the impact of previously-ignored GR effects ...

Lang, Ryan N. (Ryan Nathan)

2009-01-01T23:59:59.000Z

308

Constraining Microwave Brightness Temperatures by Radar Brightband Observations  

Science Conference Proceedings (OSTI)

Multichannel microwave sensors make it possible to construct physically based rainfall retrieval algorithms. In these schemes, errors arising from the inaccuracy of the physical modeling of the cloud system under observation have to be accounted ...

A. Battaglia; C. Kummerow; Dong-Bin Shin; C. Williams

2003-06-01T23:59:59.000Z

309

Observation of relativistic antihydrogen atoms  

DOE Green Energy (OSTI)

An observation of relativistic antihydrogen atoms is reported in this dissertation. Experiment 862 at Fermi National Accelerator Laboratory observed antihydrogen atoms produced by the interaction of a circulating beam of high momentum (3 < p < 9 GeV/c) antiprotons and a jet of molecular hydrogen gas. Since the neutral antihydrogen does not bend in the antiproton source magnets, the detectors could be located far from the interaction point on a beamline tangent to the storage ring. The detection of the antihydrogen is accomplished by ionizing the atoms far from the interaction point. The positron is deflected by a magnetic spectrometer and detected, as are the back to back photons resulting from its annihilation. The antiproton travels a distance long enough for its momentum and time of flight to be measured accurately. A statistically significant sample of 101 antihydrogen atoms has been observed. A measurement of the cross section for {bar H}{sup 0} production is outlined within. The cross section corresponds to the process where a high momentum antiproton causes e{sup +} e{sup -} pair creation near a nucleus with the e{sup +} being captured by the antiproton. Antihydrogen is the first atom made exclusively of antimatter to be detected. The observation experiment's results are the first step towards an antihydrogen spectroscopy experiment which would measure the n = 2 Lamb shift and fine structure.

Blanford, Glenn DelFosse

1998-01-01T23:59:59.000Z

310

HERSCHEL OBSERVATIONS OF INTERSTELLAR CHLORONIUM  

Science Conference Proceedings (OSTI)

Using the Herschel Space Observatory's Heterodyne Instrument for the Far-Infrared, we have observed para-chloronium (H{sub 2}Cl{sup +}) toward six sources in the Galaxy. We detected interstellar chloronium absorption in foreground molecular clouds along the sight lines to the bright submillimeter continuum sources Sgr A (+50 km s{sup -1} cloud) and W31C. Both the para-H{sup 35}{sub 2}Cl{sup +} and para-H{sup 37}{sub 2}Cl{sup +} isotopologues were detected, through observations of their 1{sub 11}-0{sub 00} transitions at rest frequencies of 485.42 and 484.23 GHz, respectively. For an assumed ortho-to-para ratio (OPR) of 3, the observed optical depths imply that chloronium accounts for {approx}4%-12% of chlorine nuclei in the gas phase. We detected interstellar chloronium emission from two sources in the Orion Molecular Cloud 1: the Orion Bar photodissociation region and the Orion South condensation. For an assumed OPR of 3 for chloronium, the observed emission line fluxes imply total beam-averaged column densities of {approx}2 Multiplication-Sign 10{sup 13} cm{sup -2} and {approx}1.2 Multiplication-Sign 10{sup 13} cm{sup -2}, respectively, for chloronium in these two sources. We obtained upper limits on the para-H{sup 35}{sub 2}Cl{sup +} line strengths toward H{sub 2} Peak 1 in the Orion Molecular cloud and toward the massive young star AFGL 2591. The chloronium abundances inferred in this study are typically at least a factor {approx}10 larger than the predictions of steady-state theoretical models for the chemistry of interstellar molecules containing chlorine. Several explanations for this discrepancy were investigated, but none has proven satisfactory, and thus the large observed abundances of chloronium remain puzzling.

Neufeld, David A.; Indriolo, Nick [Department of Physics and Astronomy, Johns Hopkins University, 3400 N. Charles St., Baltimore, MD 21218 (United States); Roueff, Evelyne; Le Bourlot, Jacques; Le Petit, Franck [Observatoire de Paris-Meudon, LUTH UMR 8102, 5 Pl. Jules Janssen, F-92195 Meudon Cedex (France); Snell, Ronald L. [Astronomy Department, University of Massachusetts at Amherst, Amherst, MA 01003 (United States); Lis, Dariusz; Monje, Raquel; Phillips, Thomas G. [Astronomy Department, California Institute of Technology, 1200 East California Boulevard, Pasadena, CA 91125 (United States); Benz, Arnold O. [Institute of Astronomy, ETH Zurich, 8092 Zurich (Switzerland); Bruderer, Simon [Max Planck Institut fuer Extraterrestrische Physik, Giessenbachstrasse 1, D-85748, Garching (Germany); Black, John H.; Larsson, Bengt [Department of Earth and Space Sciences, Chalmers University of Technology, Onsala (Sweden); De Luca, Massimo; Gerin, Maryvonne [LERMA, UMR 8112 du CNRS, Observatoire de Paris, Ecole Normale Superieure, UPMC and UCP (France); Goldsmith, Paul F.; Gupta, Harshal [JPL, California Institute of Technology, Pasadena, CA (United States); Melnick, Gary J. [Harvard-Smithsonian Center for Astrophysics, 60 Garden St., Cambridge, MA 02138 (United States); Menten, Karl M. [Max-Planck-Institut fuer Radioastronomie, Auf dem Huegel 69, D-53121 Bonn (Germany); Nagy, Zsofia [Kapteyn Astronomical Institute University of Groningen, Groningen (Netherlands); and others

2012-03-20T23:59:59.000Z

311

Some Observations on Corrosion of Support Systems in Selected ...  

Science Conference Proceedings (OSTI)

... dust and various particles, splashing of water and gases from the blasting and diesel equipment. Support components such as bolts, lattice, plate, retaining nut ...

312

Hybrid System for the In-Situ Observation of Microstructure ...  

Science Conference Proceedings (OSTI)

... in steel materials for understanding the behaviour of phase transformation in the rapid heating-cooling cycle. When combined with additional experiments and ...

313

Radar-Observed Characteristics of Precipitating Systems during NAME 2004  

Science Conference Proceedings (OSTI)

A multiradar network, operated in the southern Gulf of California (GoC) region during the 2004 North American Monsoon Experiment, is used to analyze the spatial and temporal variabilities of local precipitation. Based on the initial findings of ...

Timothy J. Lang; David A. Ahijevych; Stephen W. Nesbitt; Richard E. Carbone; Steven A. Rutledge; Robert Cifelli

2007-05-01T23:59:59.000Z

314

Least Squares Optimal Scaling of Partially Observed Linear Systems  

E-Print Network (OSTI)

presence or absence of home-security devices). Items werestation Incivility: Graffiti Home security: Motion detector

2003-01-01T23:59:59.000Z

315

Quantitative Ice Accretion Information from the Automated Surface Observing System  

Science Conference Proceedings (OSTI)

Freezing precipitation is a persistent winter weather problem that costs the United States millions of dollars annually. Costs and infrastructure disruption may be greatly reduced by ice-storm warnings issued by the National Weather Service (NWS),...

Charles C. Ryerson; Allan C. Ramsay

2007-09-01T23:59:59.000Z

316

Satellite Data Assimilation Using NASA Data Systems Test 6 Observations  

Science Conference Proceedings (OSTI)

Two assimilation schemes are described in which continuous indirect insertion of satellite-derived temperatures is performed, using a global primitive equation forecast model. Both schemes employ a relatively simple indirect insertion technique ...

Yoshi K. Sasaki; James S. Goerss

1982-11-01T23:59:59.000Z

317

Posters Ground-Based Radiometric Observations  

NLE Websites -- All DOE Office Websites (Extended Search)

7 7 Posters Ground-Based Radiometric Observations of Atmospheric Water for Climate Research J. B. Snider, D. A. Hazen, A. J. Francavilla, W. B. Madsen, and M. D. Jacobson National Oceanic and Atmospheric Administration Environmental Technology Laboratory Boulder, Colorado Introduction Surface-based microwave and infrared radiometers have been employed by the National Oceanic and Atmospheric Administration's Environmental Technology Laboratory (NOAA/ETL) in climate research since 1987. The ability of these systems to operate continuously and unattended for extended periods of time has provided significant new information on atmospheric water vapor and cloud liquid. These data are being employed to improve our understanding of cloud-radiation feedback mechanisms, an understanding

318

Biomass Burning Observation Project Specifically,  

NLE Websites -- All DOE Office Websites (Extended Search)

Burning Observation Project Burning Observation Project Specifically, the aircraft will obtain measurements of the microphysical, chemical, hygroscopic, and optical properties of aerosols. Data captured during BBOP will help scientists better understand how aerosols combine and change at a variety of distances and burn times. Locations Pasco, Washington. From July through September, the G-1 will be based out of its home base in Washington. From this location, it can intercept and measure smoke plumes from naturally occurring uncontrolled fires across Washington, Oregon, Idaho, Northern California, and Western Montana. Smoke plumes aged 0-5 hours are the primary targets for this phase of the campaign. Memphis, Tennessee. In October, the plane moves to Tennessee to sample prescribed

319

Spectra Observed Following Cargo Interrogation  

SciTech Connect

The authors present calculations of photon spectra observed following irradiation of bare HEU, HEU embedded in steel and wood cargos, and steel and wood alone. These spectra might be useful starting points for statistical detection efforts aimed at determining whether fissile material is present in a cargo. Detailed comparisons between calculations and experiments are presented and overall quite good (small {chi}{sup 2}) agreement is found. they do not present a complete solution to the problem of determining whether a given spectrum contains contributions from post-fission photons. However, it is shown that a brute-force fitting of observed spectra in terms of a few calculated ''basis'' spectra gives meaningful predictions about the presence of {sup 235}U in cargo. Though this may not be the most powerful method, it does give well defined confidence limits and seems to have strong predictive power.

Pruet, J; Prussin, S; Descalle, M; Hall, J

2005-11-15T23:59:59.000Z

320

Gamma Ray Pulsars: Multiwavelength Observations  

E-Print Network (OSTI)

High-energy gamma rays are a valuable tool for studying particle acceleration and radiation in the magnetospheres of energetic pulsars. The seven or more pulsars seen by instruments on the Compton Gamma Ray Observatory (CGRO) show that: the light curves usually have double-peak structures (suggesting a broad cone of emission); gamma rays are frequently the dominant component of the radiated power; and all the spectra show evidence of a high-energy turnover. For all the known gamma-ray pulsars, multiwavelength observations and theoretical models based on such observations offer the prospect of gaining a broad understanding of these rotating neutron stars. The Gamma-ray Large Area Space Telescope (GLAST), now in planning for a launch in 2007, will provide a major advance in sensitivity, energy range, and sky coverage.

David J. Thompson

2003-12-10T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

Spectra Observed Following Cargo Interrogation  

DOE Green Energy (OSTI)

The authors present calculations of photon spectra observed following irradiation of bare HEU, HEU embedded in steel and wood cargos, and steel and wood alone. These spectra might be useful starting points for statistical detection efforts aimed at determining whether fissile material is present in a cargo. Detailed comparisons between calculations and experiments are presented and overall quite good (small {chi}{sup 2}) agreement is found. they do not present a complete solution to the problem of determining whether a given spectrum contains contributions from post-fission photons. However, it is shown that a brute-force fitting of observed spectra in terms of a few calculated ''basis'' spectra gives meaningful predictions about the presence of {sup 235}U in cargo. Though this may not be the most powerful method, it does give well defined confidence limits and seems to have strong predictive power.

Pruet, J; Prussin, S; Descalle, M; Hall, J

2005-11-15T23:59:59.000Z

322

Observation of the Top Quark  

E-Print Network (OSTI)

The D collaboration reports on a search for the Standard Model top quark in pp collisions at p s = 1:8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb \\Gamma1 . We have searched for t t production in the dilepton and single-lepton decay channels, with and without tagging of b-quark jets. We observed 17 events with an expected background of 3:8 \\Sigma 0:6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2 \\Theta 10 \\Gamma6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 199 +19 \\Gamma21 (stat.) \\Sigma22 (syst.) GeV/c 2 and its production cross section to be 6:4 \\Sigma 2:2 pb. Typeset using REVT E X 3 In the Standard Model (SM), the top quark is the weak isospin partner of the b quark. The D collaboration published a lower limit on the mas...

Abachi Abbott Abolins

1995-01-01T23:59:59.000Z

323

Observation of the Top Quark  

E-Print Network (OSTI)

The D collaboration reports on a search for the Standard Model top quark in pp collisions at p s = 1:8 TeV at the Fermilab Tevatron, with an integrated luminosity of approximately 50 pb \\Gamma1 . We have searched for t t production in the dilepton and single-lepton decay channels, with and without tagging of b-quark jets. We observed 17 events with an expected background of 3:8 \\Sigma 0:6 events. The probability for an upward fluctuation of the background to produce the observed signal is 2 \\Theta 10 \\Gamma6 (equivalent to 4.6 standard deviations). The kinematic properties of the excess events are consistent with top quark decay. We conclude that we have observed the top quark and measure its mass to be 199 +19 \\Gamma21 (stat.) \\Sigma22 (syst.) GeV/c 2 and its production cross section to be 6:4 \\Sigma 2:2 pb. Typeset using REVT E X In the Standard Model (SM), the top quark is the weak isospin partner of the b quark. The D collaboration published a lower limit on the m...

Abachi Abbott

1995-01-01T23:59:59.000Z

324

Observation of Geo-Neutrinos  

E-Print Network (OSTI)

Geo-neutrinos, electron anti-neutrinos produced in beta decays of naturally occurring radioactive isotopes in the Earth, are a unique direct probe of our planet's interior. We report the first observation at more than 3$\\sigma$ C.L. of geo-neutrinos, performed with the Borexino detector at Laboratori Nazionali del Gran Sasso. Anti-neutrinos are detected through the neutron inverse beta decay reaction. With a 252.6 ton-yr fiducial exposure after all selection cuts, we detected 9.9^{+4.1}_{-3.4}(^{+14.6}_{-8.2}) geo-neutrino events, with errors corresponding to a 68.3%(99.73%) C.L. From the $\\ln{\\cal{L}}$ profile, the statistical significance of the Borexino geo-neutrino observation corresponds to a 99.997% C.L. Our measurement of the geo-neutrinos rate is 3.9^{+1.6}_{-1.3}(^{+5.8}_{-3.2}) events/(100ton-yr). This measurement rejects the hypothesis of an active geo-reactor in the Earth's core with a power above 3 TW at 95% C.L. The observed prompt positron spectrum above 2.6 MeV is compatible with that expected from european nuclear reactors (mean base line of approximately 1000 km). Our measurement of reactor anti-neutrinos excludes the non-oscillation hypothesis at 99.60% C.L.

Borexino Collaboration

2010-03-01T23:59:59.000Z

325

Preliminary Studies on the Variational Assimilation of Cloud-Radiation Observations Using ARM Observations  

NLE Websites -- All DOE Office Websites (Extended Search)

Studies on the Variational Assimilation Studies on the Variational Assimilation of Cloud-Radiation Observations Using ARM Observations M. Janisková, J.-F. Mahfouf, and J.-J. Morcrette European Centre for Medium-Range Weather Forecasts Shinfield Park, Reading Berskshire, United Kingdom Abstract A linearized cloud scheme and a radiation scheme including cloud effects have been developed at European Centre for Medium-Range Weather Forecasts (ECMWF) to assimilate cloud properties in the framework of the four-dimensional variational (4D-Var) assimilation system. To investigate the potential of those schemes to modify the model temperature, humidity and cloud profiles and produce a better match to the observed radiation fluxes, one-dimensional variational (1D-Var) assimilation experiments have been carried out using data from the Atmospheric Radiation Measurement (ARM)

326

Jet Observables Without Jet Algorithms  

E-Print Network (OSTI)

We introduce a new class of event shapes to characterize the jet-like structure of an event. Like traditional event shapes, our observables are infrared/collinear safe and involve a sum over all hadrons in an event, but like a jet clustering algorithm, they incorporate a jet radius parameter and a transverse momentum cut. Three of the ubiquitous jet-based observables---jet multiplicity, summed scalar transverse momentum, and missing transverse momentum---have event shape counterparts that are closely correlated with their jet-based cousins. Due to their "local" computational structure, these jet-like event shapes could potentially be used for trigger-level event selection at the LHC. Intriguingly, the jet multiplicity event shape typically takes on non-integer values, highlighting the inherent ambiguity in defining jets. By inverting jet multiplicity, we show how to characterize the transverse momentum of the n-th hardest jet without actually finding the constituents of that jet. Since many physics applications do require knowledge about the jet constituents, we also build a hybrid event shape that incorporates (local) jet clustering information. As a straightforward application of our general technique, we derive an event-shape version of jet trimming, allowing event-wide jet grooming without explicit jet identification. Finally, we briefly mention possible applications of our method for jet substructure studies.

Daniele Bertolini; Tucker Chan; Jesse Thaler

2013-10-28T23:59:59.000Z

327

Observation of the Top Quark  

DOE R&D Accomplishments (OSTI)

Top quark production is observed in{bar p}p collisions at{radical}s= 1.8 TeV at the Fermilab Tevatron. The Collider Detector at Fermilab (CDF) and D{O} observe signals consistent with t{bar t} to WWb{bar b}, but inconsistent with the background prediction by 4.8{sigma} (CDF), 4.6a (D{O}). Additional evidence for the top quark Is provided by a peak in the reconstructed mass distribution. The kinematic properties of the excess events are consistent with the top quark decay. They measure the top quark mass to be 176{plus_minus}8(stat.){plus_minus}10(sys.) GeV/c{sup 2} (CDF), 199{sub -21}{sup+19}(stat.){plus_minus}22(sys.) GeV/c{sup 2} (D{O}), and the t{bar t} production cross section to be 6.8{sub -2.4}{sup+3.6}pb (CDF), 6.4{plus_minus}2.2 pb (D{O}).

Kim, S. B.

1995-08-00T23:59:59.000Z

328

Observations on A Technology Roadmap for Generation IV Nuclear Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Observations on A Technology Roadmap for Generation IV Nuclear Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report Observations on A Technology Roadmap for Generation IV Nuclear Energy Systems: Technical Roadmap Report The development of advanced nuclear energy systems in the U.S. will depend greatly on the continued success of currently operating light water nuclear power plants and the ordering of new installations in the short term. DOE needs to give those immediate objectives the highest priority and any additional support they require to assure their success. DOE is pursuing two initiatives to encourage a greater use of nuclear energy systems. The initiatives have been reviewed by NERAC Subcommittee on Generation IV Technology Planning (GRNS) and they are: * A Near Term Development (NTD) Roadmap which is in the process of being

329

Waves in the chromosphere: observations  

E-Print Network (OSTI)

I review the literature on observational aspects of waves in the solar chromosphere in the first part of this contribution. High-frequency waves are invoked to build elaborate cool-star chromosphere heating theories but have not been detected decisively so far, neither as magnetic modes in network elements nor as acoustic modes in below-the-canopy internetwork regions. Three-minute upward-propagating acoustic shocks are thoroughly established through numerical simulation as the cause of intermittent bright internetwork grains, but their pistoning and their role in the low-chromosphere energy budget remain in debate. Three-minute wave interaction with magnetic canopies is a newer interest, presently progressing through numerical simulation. Three-minute umbral flashes and running penumbral waves seem a similar acoustic-shock phenomenon awaiting numerical simulation. The low-frequency network Doppler modulation remains enigmatic. In the second part, I address low-frequency ultraviolet brightness variations of t...

Rutten, R J

2010-01-01T23:59:59.000Z

330

Observation of the sling effect  

E-Print Network (OSTI)

When cloud particles are small enough, they move with the turbulent air in the cloud. On the other hand, as particles become larger their inertia affects their motions, and they move differently than the air. These inertial dynamics impact cloud evolution and ultimately climate prediction, since clouds govern the earth's energy balances. Yet we lack a simple description of the dynamics. Falkovich et al. describes theoretically a new dynamical mechanism called the "sling effect" by which extreme events in the turbulent air cause idealized inertial cloud particles to break free from the airflow (Falkovich G, Fouxon A, Stepanov MG 2002 Nature 419, 151). The sling effect thereafter causes particle trajectories to cross each other within isolated pockets in the flow, which increases the chance of collisions that form larger particles. We combined experimental techniques that allow for precise control of a turbulent flow with three-dimensional tracking of multiple particles at unprecedented resolution. In this way, we could observe both the sling effect and crossing trajectories between real particles. We isolated the inertial sling dynamics from those caused by turbulent advection by conditionally averaging the data. We found the dynamics to be universal in terms of a local Stokes number that quantifies the local particle velocity gradients. We measured the probability density of this quantity, which shows that sharp gradients become more frequent as the global Stokes number increases. We observed that sharp compressive gradients in the airflow initiated the sling effect, and that thereafter gradients in the particle flow ran away and steepened in a way that produced singularities in the flow in finite time. During this process both the fluid motions and gravity became unimportant. The results underpin a framework for describing a crucial aspect of inertial particle dynamics.

Gregory P. Bewley; Ewe Wei Saw; Eberhard Bodenschatz

2013-12-10T23:59:59.000Z

331

Laser frequency combs for astronomical observations  

E-Print Network (OSTI)

A direct measurement of the universe's expansion history could be made by observing in real time the evolution of the cosmological redshift of distant objects. However, this would require measurements of Doppler velocity drifts of about 1 centimeter per second per year, and astronomical spectrographs have not yet been calibrated to this tolerance. We demonstrate the first use of a laser frequency comb for wavelength calibration of an astronomical telescope. Even with a simple analysis, absolute calibration is achieved with an equivalent Doppler precision of approximately 9 meters per second at about 1.5 micrometers - beyond state-of-the-art accuracy. We show that tracking complex, time-varying systematic effects in the spectrograph and detector system is a particular advantage of laser frequency comb calibration. This technique promises an effective means for modeling and removal of such systematic effects to the accuracy required by future experiments to see direct evidence of the universe's putative acceleration.

Tilo Steinmetz; Tobias Wilken; Constanza Araujo-Hauck; Ronald Holzwarth; Theodor W. Hnsch; Luca Pasquini; Antonio Manescau; Sandro D'Odorico; Michael T. Murphy; Thomas Kentischer; Wolfgang Schmidt; Thomas Udem

2008-09-09T23:59:59.000Z

332

Observation of GRBs with AGILE  

E-Print Network (OSTI)

Since its early phases of operation, the AGILE satellite is observing Gamma Ray Bursts (GRBs) over an energy range potentially spanning six orders of magnitude. In the hard X-ray band the SuperAGILE imager provides localization of about one GRB/month plus the detection of 1-2 GRBs per month out of its field of view. The Mini-Calorimeter detects about one GRB/week in the 350keV - 100MeV energy range, plus several other transients at very short time scales. In fact, the on-board MCAL trigger logic, implemented for the first time on time windows as short as 300 microseconds, is particularly suitable for very short bursts detection. The Gamma-Ray Imaging Detector (GRID), sensitive in the 30MeV - 30GeV range, firmly detected three GRBs (GRB080514B, GRB090401B and GRB090510) plus some other candidates at a lower significance level. Moreover, all GRBs localized by other spacecrafts inside the GRID field of view are currently searched for possible detection, and upper limits are provided. In this paper we review the ...

Marisaldi, M; Costa, E; Cutini, S; Del Monte, E; Donnarumma, I; Evangelista, Y; Feroci, M; Fuschino, F; Galli, M; Giuliani, A; Labanti, C; Lapshov, I; Lazzarotto, F; Lipari, P; Longo, F; Mereghetti, S; Moretti, E; Pacciani, L; Rapisarda, M; Soffitta, P; Tavani, M; Trifoglio, M; Vercellone, S

2009-01-01T23:59:59.000Z

333

Reported Significant Observation (RSO) studies. Revision 1  

SciTech Connect

The Reported Significant Observation (RSO) study used in the field of safety is an information-gathering technique where employee-participants describe situations they have personally witnessed involving good and bad practices and safe and unsafe conditions. This information is useful in the risk assessment process because it focuses on hazards and thereby facilitates their elimination. However, RSO cannot be the only component in a risk assessment program. Used by the Air Force in their aviation psychology program and further developed by John C. Flanagan, RSO is more commonly known as the ``Critical Incident Technique.`` However, the words ``Critical`` and ``Incident`` had other connotations in nuclear safety, prompting early users within the Aerojet Nuclear Company to coin the more fitting title of ``Reported Significant Observations.`` The technique spread slowly in the safety field primarily because the majority of users were researchers interested in after-the-fact data, with application to everyday problems and behavioral factors. RSO was formally recognized as a significant hazard reduction tool during the development of the Management Oversight and Risk Tree (MORT) program for the US Atomic Energy Commission. The Department of Energy (DOE) has, in turn, adopted MORT for its system safety program, and this has resulted in RSO being a modern and viable technique for DOE contractor safety programs.

Eicher, R.W.

1992-12-01T23:59:59.000Z

334

Acronyms  

NLE Websites -- All DOE Office Websites (Extended Search)

Acronyms Acronyms ADEOS Advanced Earth Observing Satellite (Japan) AERONET Aerosol Robotic Network AirMISR Airborne MISR ARM Atmospheric Radiation Measurement Program ASTER Advanced Spaceborne Thermal Emission and Reflection radiometer ATBD Algorithm Theoretical Basis Document AVHRR Advanced Very High Resolution Radiometer AVIRIS Airborne Visible/Infrared Imaging Spectrometer BRDF Bidirectional Reflectance Distribution Function CART Clouds and Radiation Testbed CERES Clouds and the Earth's Radiant Energy System DAAC Distributed Active Archive Center EOS Earth Observing System EOSDIS EOS Data and Information System GCIP GEWEX Continental-Scale International Project GEWEX Global Energy and Water Cycle Experiment GLI Global Imager GOES Geostationary Operational Environmental Satellite

335

Unsuspected Pulmonary Embolism in Observation Unit Patients  

E-Print Network (OSTI)

department observation unit. Emerg Med Clin North Am. 2001;ED) managed acute care unit on ED overcrowding and emergencyof a chest pain observation unit compared with routine care.

Limkakeng, Alexander T.; Glickman, Seth W; Cairns, Charles B; Chandra, Abhinav

2009-01-01T23:59:59.000Z

336

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene First Observation of Plasmarons in Graphene Print Wednesday, 30 June 2010 00:00 An international team of scientists performing...

337

Direct observation of a magnetic Bose glass  

Science Conference Proceedings (OSTI)

A Bose glass is a novel state of matter that emerges in systems of interacting bosons in the presence of quenched disorder. At sufficiently low temperatures, disorder-free bosons are subject to so-called Bose-Einstein condensation (BEC). BEC can involve atoms in liquid 4He, laser-cooled ions in magnetic traps,2 Cooper pairs in superconductors, or magnons in magnetic systems. Due to peculiarities of Bose statistics, particles lose their individuality and occupy a unique quantum-mechanical state. The wave function of this condensate establishes long-range quantum phase coherence across a macroscopic sample. This, in turn, spawns unique quantum phenomena such as superfluity,5 Josephson effect6 and vortex matter. For repulsive bosons, quenched disorder disrupts the condensate and interferes with phase coherence. The result is a peculiar glassy state with only short-range phase correlations. While some experimental evidence of this was found in ultracold atoms,9 novel high-temperature superconductors,10 and quantum magnets,11, 12 none of the studies were direct. The key characteristic, namely the wave function of the condensate disrupted by disorder on the microscopic scale, remained inaccessible. Hereby we report a direct neutron diffraction observation of short range correlations of the BEC order parameter in a magnetic Bose glass. This phase is realized in the quantum spin ladder compound IPA-Cu(Cl0.96Br0.04)3, where disorder is induced by random chemical substitution.

Hong, Tao [ORNL; Zheludev, Andrey I [ORNL; Manaka, H. [Kagoshima University, Kagoshima JAPAN; Regnault, L.-P. [CEA, Grenoble, France

2010-01-01T23:59:59.000Z

338

Observation strategies for event detection with incidence on runtime verification: theory, algorithms, experimentation  

Science Conference Proceedings (OSTI)

Many applications (such as system and user monitoring, runtime verification, diagnosis, observation-based decision making, intention recognition) all require to detect the occurrence of an event in a system, which entails the ability to observe the system. ... Keywords: 68Q17, 68U99, 68W25, Complexity, Event detection, Logic programming, Runtime verification, Temporal logic

Marco Alberti; Pierangelo Dell'Acqua; Lus Moniz Pereira

2011-07-01T23:59:59.000Z

339

OBSERVATION OF DIPOLAR FERROMAGNETISM BY TEM TECHNIQUES.  

Science Conference Proceedings (OSTI)

Magnetostatic interactions play a central role in determining the magnetic response of an array of patterned magnetic elements or magnetized nanoparticles of given shape. The Fourier space approach recently introduced for the analytical computation of the demagnetizing tensor, field and energy for particles of arbitrary shape [1], has been recently extended to cover interactions between elements [2]. The main achievement has been the definition of a generalized dipole-dipole interaction for cylindrical objects, which takes into account the influence of shape anisotropy without resorting to,any kind of approximations [3]. Once the interaction energy is available, it becomes possible to evaluate the minimum energy state of the system for a given set of external parameters (such as applied field, aspect ratio, distance between elements). It turns out that, below a critical combination of aspect ratios and distances, the system undergoes a phase transition, changing abruptly from a closure domain state, with zero net magnetization, to a dipolar ferromagnetic state with a net magnetization which depends on the interaction strength between the elements. In order to observe this phenomenon by TEM, it is necessary to estimate the feasibility of the experiment by a series of simulations. Figure 1 shows the electron optical phase shifts for the system of three weakly (a-c) and strongly (d) interacting disks. The elements have a radius of 50 nm, a thickness of 5 nm (aspect ratio 1/20), and are uniformly magnetized at 2 T. By comparing Fig.1 (c) and (d), it can be seen that the fingerprint of the transition is the presence of fringing fields around the elements, revealed by the cosine fringes which resemble a dipole-like field in (d). When the system is in the closure-domain state, as in (a-c), no fringing field can be observed on a large scale. Figure 2 shows a set of Fresnel images, calculated for the same configurations as in Fig.1. As the Fresnel technique is scarcely sensitive to fringing fields, their effect is not evident in the images. However, by following the bright and dark contrast features in each image, a change in magnetization can be deduced, also when the electrostatic phase shift proportional to the thickness is taken into account. An alternative, more indirect, opportunity to observe the transition is granted by hysteresis loops. Figure 3 shows calculated hysteresis curves for non-interacting (a), weakly interacting (b) and strongly interacting (c) disks. The applied field is in-plane, along one of the triangular symmetry axis (0{sup o}, 60{sup o} or 120{sup o}). The transition is revealed by a remnant magnetization in zero field (c), contrary to the behavior of the weak interaction (b). Dipolar ferromagnetism can, therefore, be successfully investigated by TEM, where at least three different techniques, phase retrieval, phase contrast, and in-situ hysteresis experiments, are available for detecting the phase transition [4].

BELEGGIA, M.ZHU,Y.TANDON,S.ET AL.

2004-08-01T23:59:59.000Z

340

Bounding the mass of the graviton using binary pulsar observations  

E-Print Network (OSTI)

The close agreement between the predictions of dynamical general relativity for the radiated power of a compact binary system and the observed orbital decay of the binary pulsars PSR B1913+16 and PSR B1534+12 allows us to bound the graviton mass to be less than 7.6 x 10^{-20} eV with 90% confidence. This bound is the first to be obtained from dynamic, as opposed to static-field, relativity. The resulting limit on the graviton mass is within two orders of magnitude of that from solar system measurements, and can be expected to improve with further observations.

Lee Samuel Finn; Patrick J. Sutton

2001-09-13T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

The Use of Surface Observations in Four-Dimensional Data Assimilation Using a Mesoscale Model  

Science Conference Proceedings (OSTI)

A system for the frequent intermittent assimilation of surface observations into a mesoscale model is described. The assimilation begins by transforming the surface observations to model coordinates. Next, the lowest-level model fields of ...

Frank H. Ruggiero; Keith D. Sashegyi; Rangarao V. Madala; Sethu Raman

1996-05-01T23:59:59.000Z

342

Interchannel Error Correlation Associated with AIRS Radiance Observations: Inference and Impact in Data Assimilation  

Science Conference Proceedings (OSTI)

The interchannel observation error correlation (IOEC) associated with radiance observations is currently assumed to be zero in meteorological data assimilation systems. This assumption may lead to suboptimal analyses. Here, the IOEC is inferred ...

Louis Garand; Sylvain Heilliette; Mark Buehner

2007-06-01T23:59:59.000Z

343

The Impact of Doppler Lidar Wind Observations on a Single-Level Meteorological Analysis  

Science Conference Proceedings (OSTI)

Through the use of observation operators, modern data assimilation systems have the capability to ingest observations of quantities that are not themselves model variables but are mathematically related to those variables. An example of this is ...

L. P. Riishjgaard; R. Atlas; G. D. Emmitt

2004-05-01T23:59:59.000Z

344

Validation and Interpretation of Adjoint-Derived Sensitivity Steering Vector as Targeted Observation Guidance  

Science Conference Proceedings (OSTI)

The adjoint-derived sensitivity steering vector (ADSSV) has been proposed and applied as a guidance for targeted observation in the field programs for improving tropical cyclone predictability, such as The Observing System Research and ...

Shin-Gan Chen; Chun-Chieh Wu; Jan-Huey Chen; Kun-Hsuan Chou

2011-05-01T23:59:59.000Z

345

The Effect of Serially Correlated Observation and Model Error on Atmospheric Data Assimilation  

Science Conference Proceedings (OSTI)

Observation error statistics are required in most atmospheric data assimilation systems. While observation errors are often assumed to be spatially correlated, serial correlations have received virtually no attention. In this article, the effect ...

Roger Daley

1992-01-01T23:59:59.000Z

346

The Observational?Inductive Framework for Science  

Science Conference Proceedings (OSTI)

A new observational?inductive framework for science is emerging due to recent developments in sensors

Timothy E. Eastman

2006-01-01T23:59:59.000Z

347

Impact of ASCAT Scatterometer Wind Observations on the High-Resolution Limited-Area Model (HIRLAM) within an Operational Context  

Science Conference Proceedings (OSTI)

Denial experiments, also denoted observing system experiments (OSEs), are used to determine the impact of an observing system on the forecast quality of a numerical weather prediction (NWP) model. When the impact is neutral or positive, new ...

Siebren de Haan; Gert-Jan Marseille; Paul de Valk; John de Vries

2013-04-01T23:59:59.000Z

348

Comparison between Observed Convective Cloud-Base Heights and Lifting Condensation Level for Two Different Lifted Parcels  

Science Conference Proceedings (OSTI)

Approximately 400 Automated Surface Observing System (ASOS) observations of convective cloud-base heights at 2300 UTC were collected from April through August of 2001. These observations were compared with lifting condensation level (LCL) heights ...

Jeffrey P. Craven; Ryan E. Jewell; Harold E. Brooks

2002-08-01T23:59:59.000Z

349

Abstract for Thomas Klähn  

NLE Websites -- All DOE Office Websites (Extended Search)

University of Rostock, Germany University of Rostock, Germany Modern compact star observations and the equation of state Recent astrophysical measurements of compact star (CS) masses, mass radius relations and their cooling evolution give valuable insight into the properties of cold and dense nuclear matter (NM) beyond saturation. These data provide a benchmark for our understanding of the high density equation of state (EoS). Additionally the EoS has to be in accordance with flow data analyses for isospin symmetric matter (SM). Applying these constraints results in a highly selective testing scheme on the nuclear EoS. This scheme allows in a next step to model a hybrid, nuclear-quark matter EoS by chosing phenomenologically reliable parameter sets for a NJL-type quark matter model EoS. The resulting hybrid star configurations are barely

350

Uniformly accelerated observer in a thermal bath  

E-Print Network (OSTI)

We investigate the quantum field aspects in flat spacetime for an uniformly accelerated observer moving in a thermal bath. In particular, we obtain an exact closed expression of the reduced density matrix for an uniformly accelerated observer with acceleration $a = 2\\pi T$ when the state of the quantum field is a thermal bath at temperature $T^\\prime$. We find that the density matrix has a simple form with an effective partition function $Z$ being a product, $Z = Z_T Z_{T^\\prime}$, of two thermal partition functions corresponding to temperatures $T$ and $T^\\prime$ and hence is not thermal, even when $T = T^\\prime$. We show that, even though the partition function has a product structure, the two thermal baths are, in fact, interacting systems; although in the high frequency limit $\\omega_k \\gg T$ and $\\omega_k \\gg T^\\prime$, the interactions are found to become sub-dominant. We further demonstrate that the resulting spectrum of the Rindler particles can be interpreted in terms of spontaneous and stimulated emission due to the background thermal bath. The density matrix is also found to be symmetric in the acceleration temperature $T$ and the thermal bath temperature $T^\\prime$ indicating that thermodynamic experiments alone cannot distinguish between the thermal effects due to $T$ and those due to $T^\\prime$. The entanglement entropy associated with the reduced density matrix (with the background contribution of the Davies-Unruh bath removed) is shown to satisfy, in the $\\omega_k \\gg T^\\prime$ limit, a first law of thermodynamics relation of the form $T \\delta S = \\delta E$ where $\\delta E$ is the difference in the energies corresponding to the reduced density matrix and the background Davies-Unruh bath. The implications are discussed.

Sanved Kolekar

2013-09-12T23:59:59.000Z

351

Observing and modeling Earths energy flows  

SciTech Connect

This article reviews, from the authors perspective, progress in observing and modeling energy flows in Earth's climate system. Emphasis is placed on the state of understanding of Earth's energy flows and their susceptibility to perturbations, with particular emphasis on the roles of clouds and aerosols. More accurate measurements of the total solar irradiance and the rate of change of ocean enthalpy help constrain individual components of the energy budget at the top of the atmosphere to within {+-}2 W m{sup -2}. The measurements demonstrate that Earth reflects substantially less solar radiation and emits more terrestrial radiation than was believed even a decade ago. Active remote sensing is helping to constrain the surface energy budget, but new estimates of downwelling surface irradiance that benefit from such methods are proving difficult to reconcile with existing precipitation climatologies. Overall, the energy budget at the surface is much more uncertain than at the top of the atmosphere. A decade of high-precision measurements of the energy budget at the top of the atmosphere is providing new opportunities to track Earth's energy flows on timescales ranging from days to years, and at very high spatial resolution. The measurements show that the principal limitation in the estimate of secular trends now lies in the natural variability of the Earth system itself. The forcing-feedback-response framework, which has developed to understand how changes in Earth's energy flows affect surface temperature, is reviewed in light of recent work that shows fast responses (adjustments) of the system are central to the definition of the effective forcing that results from a change in atmospheric composition. In many cases, the adjustment, rather than the characterization of the compositional perturbation (associated, for instance, with changing greenhouse gas concentrations, or aerosol burdens), limits accurate determination of the radiative forcing. Changes in clouds contribute importantly to this adjustment and thus contribute both to uncertainty in estimates of radiative forcing and to uncertainty in the response. Models are indispensable to calculation of the adjustment of the system to a compositional change but are known to be flawed in their representation of clouds. Advances in tracking Earth's energy flows and compositional changes on daily through decadal timescales are shown to provide both a critical and constructive framework for advancing model development and evaluation.

Stevens B.; Schwartz S.

2012-05-11T23:59:59.000Z

352

The Accuracy of Voluntary Observing Ships' Meteorological Observations-Results of the VSOP-NA  

Science Conference Proceedings (OSTI)

For the Voluntary Observing Ships Special Observing Project for the North Atlantic (VSOP-NA), the layout, meteorological instrumentation, and observing practices of 45 voluntary observing ships (VOS) operating in the North Atlantic were ...

Elizabeth C. Kent; Peter K. Taylor; Bruce S. Truscott; John S. Hopkins

1993-08-01T23:59:59.000Z

353

Observation and Theory of the Diurnal Continental Thermal Tide  

Science Conference Proceedings (OSTI)

Harmonic analysis of summer Automated Surface Observing System (ASOS) data over North America shows sun-following diurnal temperature and pressure oscillations with amplitudes increasing in the western United States (i.e., 58 K and 60120 hPa, ...

Yanping Li; Ronald B. Smith

2010-09-01T23:59:59.000Z

354

Further Studies of a Lake Breeze Part I: Observational Study  

Science Conference Proceedings (OSTI)

The three-dimensional structure and behavior of a lake-land breeze circulation system induced by Lake Ontario for a selected 24 h period is presented. The structure is determined from observations made during the International Field Year of the ...

Mariano A. Estoque

1981-03-01T23:59:59.000Z

355

Observation of Atmospheric Fronts Using Raman Lidar Moisture Measurements  

Science Conference Proceedings (OSTI)

This paper presents the results of a field program using a ground-based Raman lidar system to observe changes in moisture profiles as a cold and a warm front passed over the NASA/Goddard Space Flight Center in Greenbelt, Maryland. The lidar ...

S. H. Melfi; D. Whiteman; R. Ferrare

1989-09-01T23:59:59.000Z

356

Short-period global atmospheric waves revealed by nightglow observations  

Science Conference Proceedings (OSTI)

The night-time emissions of OH(6-2) and the O2 Atmospheric System (0-1) have been observed at Maimaga (63.1 N, 129.6 E) during the winters of 2007-2008 and 2008-2009 and revealed steady-frequency atmospheric oscillations near the mesopause ...

Natalia Karpova; Gustav Shved; Svetlana Ermolenko; Petr Ammosov; Galina Gavrilyeva; Elena Savenkova

2011-06-01T23:59:59.000Z

357

System Demonstration Multilingual Weather Forecast Generation System  

E-Print Network (OSTI)

System Demonstration Multilingual Weather Forecast Generation System Tianfang Yao DongmoZhang Qian (Multilingual Weather Forecasts Assistant) system will be demonstrated. It is developed to generate the multilingual text of the weather forecasts automatically. The raw data from the weather observation can be used

358

Fault detection in reaction wheel of a satellite using observer-based dynamic neural networks  

Science Conference Proceedings (OSTI)

This paper presents a methodology for the actuator fault detection in the satellite's attitude control system (ACS) by using a dynamic neural network based observer. In this methodology, a neural network is used to model a nonlinear dynamical system. ...

Zhongqi Li; Liying Ma; Khashayar Khorasani

2005-05-01T23:59:59.000Z

359

The Arctic Lower Troposphere Observed Structure (ALTOS) Campaign  

SciTech Connect

The ALTOS campaign focuses on operating a tethered observing system for routine in situ sampling of low-level (< 2 km) Arctic clouds. It has been a long-term hope to fly tethered systems at Barrow, Alaska, but it is clear that the Federal Aviation Administration (FAA) will not permit in-cloud tether systems at Barrow, even if unmanned aerial vehicle (UAV) operations are allowed in the future. We have provided the scientific rationale for long-term, routine in situ measurements of cloud and aerosol properties in the Arctic. The existing restricted air space at Oliktok offers an opportunity to do so.

Verlinde, J

2010-10-18T23:59:59.000Z

360

Special Emphasis Observances | Department of Energy  

NLE Websites -- All DOE Office Websites (Extended Search)

Services » Diversity and Inclusion » Special Emphasis Observances Services » Diversity and Inclusion » Special Emphasis Observances Special Emphasis Observances The Energy Department celebrates special emphasis observances regularly, inviting guest speakers to highlight how the agency's mission benefits from diversity and inclusion. The Energy Department celebrates special emphasis observances regularly, inviting guest speakers to highlight how the agency's mission benefits from diversity and inclusion. The Department of Energy observes special days, weeks, and months as reflected in the below list of special program observances. Observances are held annually in compliance with Executive Order 11478, 29 CFR Part 1614.102(b)(4), joint Congressional Resolutions, Presidential Proclamations, and the Department's diversity and inclusion goals as

Note: This page contains sample records for the topic "observing system eos" 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

Near-Global Observations of Low Clouds  

Science Conference Proceedings (OSTI)

This paper analyzes several near-global datasets of low cloud cover, including the the International Satellite Cloud Climatology Project (ISCCP) satellite observations, C. J. Hahn et al. surface-derived observations, and the National Centers for ...

Bryan C. Weare

2000-04-01T23:59:59.000Z

362

Observations of a Mesoscale Ducted Gravity Wave  

Science Conference Proceedings (OSTI)

This paper reports coordinated observations of a mesoscale gravity wave made during the FRONTS 84 field experiment conducted in southwestern France in the summer of 1984. The observations were unique in the sense that all relevant wave ...

F. M. Ralph; V. Venkateswaran; M. Crochet

1993-10-01T23:59:59.000Z

363

Observations of Irminger Sea Anticyclonic Eddies  

Science Conference Proceedings (OSTI)

Mesoscale anticyclonic eddies in the Irminger Sea are observed using a mooring and a glider. Between 2002 and 2009, the mooring observed 53 anticyclones. Using a kinematic model, objective estimates of eddy length scales and velocity structure are ...

Xue Fan; Uwe Send; Pierre Testor; Johannes Karstensen; Pascale Lherminier

2013-04-01T23:59:59.000Z

364

Statistical Design for Adaptive Weather Observations  

Science Conference Proceedings (OSTI)

Suppose that one has the freedom to adapt the observational network by choosing the times and locations of observations. Which choices would yield the best analysis of the atmospheric state or the best subsequent forecast? Here, this problem of ...

L. Mark Berliner; Zhan-Qian Lu; Chris Snyder

1999-08-01T23:59:59.000Z

365

Observed Aerosol Radiative Forcings: Comparison for Natural...  

NLE Websites -- All DOE Office Websites (Extended Search)

are from 1997, when the El Nio suppressed the rainfall in that region and biomass burning was widespread in the area. These observations are compared to those observed during...

366

Observations and Modeling of Photovoltaic Responses in ...  

Science Conference Proceedings (OSTI)

About this Abstract. Meeting, Materials Science & Technology 2009. Symposium, Ferroelectrics and Multiferroics. Presentation Title, Observations and Modeling...

367

Observation Wells (Ozkocak, 1985) | Open Energy Information  

Open Energy Info (EERE)

(Ozkocak, 1985) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Observation Wells (Ozkocak, 1985) Exploration Activity Details Location...

368

Earth observations and global change decision making, 1989: A national partnership. Vol. 1  

SciTech Connect

Attention is given to advanced information management and global decision making, improving access to global change data through catalog interoperability, NOAA satellite data for climate and global change, and artificial intelligence and environmental data. Also contributed are solar activity versus the greenhouse effect, freshwater ecosystems and resources, the need for in situ measurements for EOS, and disseminating voluminous resource databases in an era of global change.

Ginsberg, I.W.; Angelo, J.A. Jr.; (Michigan, Environmental Research Institute, Ann Arbor; Florida Institute of Technology, Melbourne)

1990-01-01T23:59:59.000Z

369

System-level modeling for geological storage of CO2  

SciTech Connect

One way to reduce the effects of anthropogenic greenhousegases on climate is to inject carbon dioxide (CO2) from industrialsources into deep geological formations such as brine formations ordepleted oil or gas reservoirs. Research has and is being conducted toimprove understanding of factors affecting particular aspects ofgeological CO2 storage, such as performance, capacity, and health, safetyand environmental (HSE) issues, as well as to lower the cost of CO2capture and related processes. However, there has been less emphasis todate on system-level analyses of geological CO2 storage that considergeological, economic, and environmental issues by linking detailedrepresentations of engineering components and associated economic models.The objective of this study is to develop a system-level model forgeological CO2 storage, including CO2 capture and separation,compression, pipeline transportation to the storage site, and CO2injection. Within our system model we are incorporating detailedreservoir simulations of CO2 injection and potential leakage withassociated HSE effects. The platform of the system-level modelingisGoldSim [GoldSim, 2006]. The application of the system model is focusedon evaluating the feasibility of carbon sequestration with enhanced gasrecovery (CSEGR) in the Rio Vista region of California. The reservoirsimulations are performed using a special module of the TOUGH2 simulator,EOS7C, for multicomponent gas mixtures of methane and CO2 or methane andnitrogen. Using this approach, the economic benefits of enhanced gasrecovery can be directly weighed against the costs, risks, and benefitsof CO2 injection.

Zhang, Yingqi; Oldenburg, Curtis M.; Finsterle, Stefan; Bodvarsson, Gudmundur S.

2006-04-24T23:59:59.000Z

370

Convergence analysis for the uncalibrated robotic handeye coordination based on the unmodeled dynamics observer  

Science Conference Proceedings (OSTI)

The uncalibrated robotic handeye coordination problem is firstly modeled by a dynamic system, where the unknown handeye relationship is regarded as the system's unmodeled dynamics. A state observer is then designed to estimate impacts of ... Keywords: State observer, Uncalibrated handeye coordination, Unmodeled dynamics, Visual servoing

Jianbo Su

2010-07-01T23:59:59.000Z

371

Chest radiographs obtained with shaped filters: evaluation by observer performance tests  

SciTech Connect

The effectiveness of a shaped filter in improving nodule and infiltrate detection was measured by observer performance testing. Seven observers read 152 test radiographs of the chest obtained from human volunteers. Half the test radiographs had target image observer performance in detecting nodule or infiltrate images was compared with the shaped-filter system and with a conventional chest imaging system. The results were analyzed using receiver operating characteristic (ROC) techniques and indicate that the filter technique was not significantly different from the conventional technique in infiltrate depiction. Observer performance in detecting nodules was slightly worse on images obtained with the shaped-filter system.

Kelsey, C.A.; Lane, R.G.; Moseley, R.D.; Mettler, F.A.; Rosenberg, R.D.; Williams, A.G.; Garcia, J.F.; Feldman, B.S.; Boardman, R.E.

1986-06-01T23:59:59.000Z

372

EO 13212: Actions To Expedite Energy-Related Projects  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

7 7 Federal Register / Vol. 66, No. 99 / Tuesday, May 22, 2001 / Presidential Documents Executive Order 13212 of May 18, 2001 Actions To Expedite Energy-Related Projects By the authority vested in me as President by the Constitution and the laws of the United States of America, and in order to take additional steps to expedite the increased supply and availability of energy to our Nation, it is hereby ordered as follows: Section 1. Policy. The increased production and transmission of energy in a safe and environmentally sound manner is essential to the well-being of the American people. In general, it is the policy of this Administration that executive departments and agencies (agencies) shall take appropriate actions, to the extent consistent with applicable law, to expedite projects

373

EO 11514: Protection and Enhancement of Environmental Quality  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

514, March 5, 1970 514, March 5, 1970 PROTECTION AND ENHANCEMENT OF ENVIRONMENTAL QUALITY As amended by Executive Order 11991. (Secs. 2(g) and 3(h)). May 24, 1977* By virtue of the authority vested in me as President of the United States and in furtherance of the purpose and policy of the National Environmental Policy Act of 1969 (Public Law No. 91-190, approved January 1, 1970), it is ordered as follows: Section 1. Policy. The Federal Government shall provide leadership in protecting and enhancing the quality of the Nation's environment to sustain and enrich human life. Federal agencies shall initiate measures needed to direct their policies, plans and programs so as to meet national environmental goals. The Council on Environmental Quality, through the Chairman, shall advise and assist the President in leading this

374

C:MyFilesWPDOCSEO13111.PDF  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

111 of January 12, 1999 111 of January 12, 1999 Using Technology To Improve Training Opportunities for Federal Government Employees Advances in technology and increased skills needs are changing the workplace at an ever increasing rate. These advances can make Federal employees more productive and provide improved service to our customers, the American taxpayers. We need to ensure that we continue to train Federal employees to take full advantage of these technological advances and to acquire the skills and learning needed to succeed in a changing workplace. A coordinated Federal effort is needed to provide flexible training opportunities to employees and to explore how Federal training programs, initiatives, and policies can better support lifelong learning through the use of learning technology.

375

EO 12114: Environmental Effects Abroad of Major Federal Actions  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

114-Environmental Effects Abroad of Major Federal Actions 114-Environmental Effects Abroad of Major Federal Actions SOURCE: The provisions of Executive Order 12114 of January 4, 1979, appear at 44 FR 1957, 3 CFR, 1979, Comp., p. 356, unless otherwise noted. By virtue of the authority vested in me by the Constitution and the laws of the United States, and as President of the United States, in order to further environmental objectives consistent with the foreign policy and national security policy of the United States, it is ordered as follows: Section 1. 1-1. Purpose and Scope. The purpose of this Executive Order is to enable responsible officials of Federal Agencies having ultimate responsibility for authorizing and approving actions encompassed by this Order to be informed of pertinent environmental considerations and to take

376

EO 13186: Responsibilities of Federal Agencies To Protect Migratory Birds  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

853 853 Federal Register Vol. 66, No. 11 Wednesday, January 17, 2001 Title 3- The President Executive Order 13186 of January 10, 2001 Responsibilities of Federal Agencies To Protect Migratory Birds By the authority vested in me as President by the Constitution and the laws of the United States of America, and in furtherance of the purposes of the migratory bird conventions, the Migratory Bird Treaty Act (16 U.S.C. 703-711), the Bald and Golden Eagle Protection Acts (16 U.S.C. 668-668d), the Fish and Wildlife Coordination Act (16 U.S.C. 661-666c), the Endangered Species Act of 1973 (16 U.S.C. 1531-1544), the National Environmental Policy Act of 1969 (42 U.S.C. 4321-4347), and other pertinent statutes, it is hereby ordered as follows: Section 1. Policy. Migratory birds are of great ecological and economic

377

EO 12088: Federal Compliance with Pollution Control Standards  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

088-Federal Compliance with Pollution Control Standards 088-Federal Compliance with Pollution Control Standards SOURCE: The provisions of Executive Order 12088 of October 13,1978, appear at 43 FR 47707, 3 CFR, 1978 Comp., p. 243, unless otherwise noted. By the authority vested in me as President by the Constitution and statutes of the United States of America, including Section 22 of the Toxic Substances Control Act (15 U.S.C. 2621), Section 313 of the Federal Water Pollution Control Act, as amended (33 U.S.C. 1323), Section 1447 of the Public Health Service Act, as amended by the Safe Drinking Water Act (42 U.S.C. 300j-6), Section 118of the Clean Air Act, as amended (42 U.S.C. 7418(b)), Section 4 of the Noise Control Act of 1972 (42 U.S.C. 4903), Section 6001 of the Solid Waste Disposal Act, as amended (42 U.S.C. 6961), and Section 301 of Title 3 of the United

378

Microsoft Word - ALonEO13423Last.doc  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Department of Energy No. 2007-12 Department of Energy No. 2007-12 Acquisition Regulation Date 09/20/07 ACQUISITION LETTER This Acquisition Letter is issued under the authority of the DOE and NNSA Procurement Executives. Subject: Executive Order 13423, Strengthening Federal Environmental, Energy, and Transportation Management References: DOE Acquisition Guide Chapter 23, Strengthening Federal Environmental, Energy and Transportation Management FAR Part 23 - Environment, Energy and Water Efficiency, Renewable Energy Technologies, Occupational Safety, and Drug-Free Workplace DEAR Part 923 - Environment, Conservation, Occupational Safety, and Drug-Free Workplace When is this Acquisition Letter (AL) Effective?

379

EO 13089 -- Coral Reef Protection | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Documents & Publications Privacy - Information Protection Task Force - Charter CHARTER, Price-Anderson Act Task Force REPORT TO CONGRESS ON COMPETITION IN WHOLESALE AND RETAIL...

380

E.O.13514 Federal Leadership in Environmental, Energy, and  

E-Print Network (OSTI)

lease analysis and acquisition method focuses on upfront capital cost per square foot, and not total LCCLA Capital, Energy, Water Life Cycle Costs Historical Data Distributions Square Projections Natural Gas Price Projections Current Building · Aging building · Higher energy cost · Rising

Note: This page contains sample records for the topic "observing system eos" 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

Reducing Regulatory Burden EO 13563 Third RFI Comment Extension  

Energy.gov (U.S. Department of Energy (DOE))

This notice announces that the period for submitting comments on the Department of Energys (DOE) request for information (RFI) issued as part of its implementation of Executive Order 13563, ...

382

EO 13148 Greening the Government Through Leadership in Environmental...  

NLE Websites -- All DOE Office Websites (Extended Search)

device CERCLA Comprehensive Environmental Response, Compensation, and Liability Act CIO Chief Information Officer CMOS complementary metal oxide semiconductor CY calendar...

383

EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION Counting Atlantic Tropical  

E-Print Network (OSTI)

Climate variability and any resulting change in the characteristics of tropical cyclones (tropical storms, subtropical storms, and hurricanes) have become topics of great interest and research within the past 2 years [International Workshop on Tropical Cyclones, 2006]. An emerging focus is how the frequency of tropical cyclones has changed over time and whether any changes could be linked to anthropogenic global warming. The Atlantic is the one tropical cyclone basin that has quantitative records back to the midnineteenth century for the whole basin (i.e., North Atlantic Ocean, Caribbean Sea, and Gulf of Mexico) [Jarvinen et al., 1984; Landsea et al.,

Cyclones Back To

2007-01-01T23:59:59.000Z

384

EO 12866 Meeting at OMB - ATI Allegheny Ludlum | Department of...  

NLE Websites -- All DOE Office Websites (Extended Search)

"Large Power Transformers and the U.S. Electric Grid" Report (June 2012) DOE-HDBK-10171-93 Benefits of Using Mobile Transformers and Mobile Substations for Rapidly...

385

Detection of Storm Damage Tracks with EOS Data  

Science Conference Proceedings (OSTI)

The damage surveys conducted by the NWS in the aftermath of a reported tornadic event are used to document the location of the tornado ground damage track (pathlength and width) and an estimation of the tornado intensity. This study explores the ...

Gary J. Jedlovec; Udaysankar Nair; Stephanie L. Haines

2006-06-01T23:59:59.000Z

386

Strongly coupled ionic mixtures and the H/He EOS  

DOE Green Energy (OSTI)

This paper summarizes recent work on the strongly coupled OCP and Binary Ionic Mixture equation of state and other thermodynamic quantities in white dwarf interior conditions for both fluid and solid phases with the assumption of a uniform background. Conditions for phase separation of different elements in fluid or solid phases is strongly dependent on deviations from the linear mixing rule which gives the equation of state as an additive function of the OCP equation of state. These deviations turn out to be small (a few parts in 10{sup 5}) and always positive including the case where the fraction of the higher Z component approaches 0. Also the equation of state of strongly coupled light elements (H and He particularly) obtained from simulations with a linear response description of the electrons is given for conditions appropriate to brown dwarf star interiors. Recent Livermore work on a band structure calculation of the enthalpy of H and He mixtures under jovian conditions is discussed. This work leads to a prediction of a high temperature (15,000 K) for miscibility of He in ionized H at 10 Mb.

DeWitt, H.E.

1993-12-02T23:59:59.000Z

387

EOS, TRANSACTIONS, AMERICAN GEOPHYSICAL UNION Nutrient Enrichment Drives  

E-Print Network (OSTI)

During most summers over the past 30 years, bottom dissolved oxygen across a large area of the Louisiana and upper Texas continental shelf declined to concentrations too low (hypoxia) for most fish and large invertebrate animals to survive. This area is one of the best known dead zones proliferating around the world [Diaz and Rosenberg, 2008]. During July 2008, hypoxic bottom waters extended across 20,720 square kilometers (Figure 1), but they were probably even more extensive because winds from Hurricane Dolly mixed the waters off Texas before the survey could be completed. Increased inputs of nutrients (principally nitrogen and phosphorus) from the U.S. agricultural heartland within the Mississippi- Atchafalaya River Basin ( MARB) are implicated in the development and spread of hypoxia in the Gulf of Mexico. Consequently, the causes of, and solutions for, hypoxia have been subjects of extensive debate and analysis. An integrated scientific assessment led to a 2001 Action Plan [Mississippi River / Gulf of Mexico Watershed Nutrient Task Force, 2001] with a goal of reducing the area of the hypoxic zone to less than 5000 square kilometers by reducing nitrogen loading [Rabalais et al., 2007]. are primarily related to nutrient fluxes from the MARB [SAB, 2008, p. 2]. The reconfirmed consensus is that anthropogenic nutrients stimulate the production of planktonic organic matter, the decomposition of which depletes dissolved oxygen in bottom waters on the seasonally stratified inner shelf. Despite these two major scientific assessments supporting this consensus, skeptics [Dagg et al., 2007; Bianchi et al., 2008] have suggested alternative causes of hypoxia, including (1) oxidation of organic matter not derived from phytoplankton production, (2) physical processes affecting water column stability, and (3) coastal wetland loss and river controls. This article addresses these criticisms and demonstrates why they do not challenge the consensus on nutrient enrichment. Organic Matter Sources Seasonally recurring hypoxia developed on the shelf from the 1970s through the 1990s, coinciding with a tripling of nitrate

Gulf Of Mexico Hypoxia

2009-01-01T23:59:59.000Z

388

Procedures Applicable to Major Federal Actions ... Subject to EO 12114  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

November 13, 1979 Part 111 Department of State - Office of the Secretary ~ Unified Procedures Applicable to Major Federal Actions Relating to Nuclear Activities Subject to Executive Order 121 14 65560 Federal Register I Vol. 44, No, 220 / T u e s d a y , N o v e m b e r 13, 1979 / Notices DEPARTMENTOFSTATE [Public Notice 6901 Unified Procedures Applicable to Major Federal Actions Relating to Nuclear Activities Subject to Executive Order 12114 . Executive Order 12114. "En\ ironmental Effects Abroad of Major Federal Actions." was signed by the President on Jan-ary 4, 19i9. The Order represents the excl;sive and complete determination by the L'nited States Governmen! of the procedural and other actions to be taken by Federal agencies to further the purposes of the National

389

H.E.S.S. Observations of LS 5039  

E-Print Network (OSTI)

Recent observations of the binary system LS5039 with the High Energy Stereoscopic System (H.E.S.S.) revealed that its Very High Energy (VHE) gamma-ray emission is modulated at the 3.9 days orbital period of the system. The bulk of the emission is largely confined to half of the orbit, peaking around the inferior conjunction epoch of the compact object. The flux modulation provides the first indication of gamma-ray absorption by pair production on the intense stellar photon field. This implies that the production region size must be not significantly greater than the gamma-gamma photosphere size (~1 AU), thus excluding the large scale collimated outflows or jets (extending out to ~1000 AU). A hardening of the spectrum is also observed at the same epoch between 0.2 and a few TeV which is unexpected under a pure absorption scenario and could rather arise from variation with phase in the maximum electron energy and/or the dominant VHE gamma-ray production mechanism. This first-time observation of modulated gamma-ray emission allows precise tests of the acceleration and emission models in binary systems.

Mathieu De Naurois; the H. E. S. S. Collaboration Collaboration

2006-09-02T23:59:59.000Z

390

CMB Observational Techniques and Recent Results  

E-Print Network (OSTI)

The Cosmic Microwave Background (CMB) consists of photons that were last created about 2 months after the Big Bang, and last scattered about 380,000 years after the Big Bang. The spectrum of the CMB is very close to a blackbody at 2.725 K and upper limits on any deviations of the CMB from a blackbody place strong constraints on energy transfer between the CMB and matter at all redshifts less than 2,000,000. The CMB is very nearly isotropic, but a dipole anisotropy of +/-3.346(17) mK shows that the Solar System barycenter is moving at 368+/-2 km/sec relative to the observable Universe. The dipole corresponds to a spherical harmonic index l=1. The higher indices l geq 2 indicate intrinsic inhomogeneities in the Universe that existed at the time of last scattering. While the photons have traveled freely only since the time of last scattering, the inhomogeneities traced by the CMB photons have been in place since the inflationary epoch only 10^{-35} sec after the Big Bang. These intrinsic anisotropies are much smaller in amplitude than the dipole anisotropy, with Delta T leq 100 microK. Electron scattering of the anisotropic radiation field produces an anisotropic linear polarization in the CMB with amplitudes less than 5 microK. Detailed studies of the angular power spectrum of the temperature and linear polarization anisotropies have yielded precise values for many cosmological parameters. This paper will discuss the techniques necessary to measure signals that are 100 million times smaller than the emission from the instrument and briefly describe results from experiments up to WMAP.

E. L. Wright

2003-12-31T23:59:59.000Z

391

Network-ready Camera System Development for All-Sky Observing System Background  

E-Print Network (OSTI)

be located on a rooftop and continually monitors the sky for flashes such as bright meteor fireballs, accuracy of time stamping 2. Research autonomous power options (e.g., solar cells). Considerations include

Johnson, Eric E.

392

An Observing System Experiment for Tropical Cyclone Targeting Techniques Using the Global Forecast System  

Science Conference Proceedings (OSTI)

In 1997, the National Oceanic and Atmospheric Administrations National Hurricane Center and the Hurricane Research Division began operational synoptic surveillance missions with the Gulfstream IV-SP jet aircraft to improve the numerical guidance ...

Sim D. Aberson; Sharanya J. Majumdar; Carolyn A. Reynolds; Brian J. Etherton

2011-03-01T23:59:59.000Z

393

672 JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 11, NO. 6, DECEMBER 2002 A Planar Electroosmotic Micropump  

E-Print Network (OSTI)

-induced ion drag to drive liquids and achieve high pressures in a compact design with no moving parts rate of 15 L/min min at 1 kV. [791] Index Terms--Electroosmotic (EO) pump, high pressure, Joule heating the thermody- namic efficiency of planar EO pumps. The analytical model was applied to guide the design

Santiago, Juan G.

394

Self-potential observations during hydraulic fracturing  

E-Print Network (OSTI)

potential measurements during hydraulic fracturing of BunterSP response during hydraulic fracturing. Citation: Moore, J.observations during hydraulic fracturing, J. Geophys. Res. ,

Moore, J R; Glaser, Steven D

2007-01-01T23:59:59.000Z

395

Aircraft S-HIS Observations during MPACE  

NLE Websites -- All DOE Office Websites (Extended Search)

Aircraft S-HIS Observations during MPACE DeSlover, Daniel University of Wisconsin Holz, Robert University of Wisconsin, CIMMS Turner, David University of Wisconsin-Madison...

396

Observational Window Functions in Planet Transit Searches  

E-Print Network (OSTI)

Window functions describe, as a function of orbital period, the probability that an existing planetary transit is detectable in one's data for a given observing strategy. We show the dependence of this probability upon several strategy and astrophysical parameters, such as length of observing run, observing cadence, length of night, and transit duration. The ability to detect a transit is directly related to the intrinsic noise of the observations. In our simulations of the window function, we explicitly address non-correlated (gaussian or white) noise and correlated (red) noise and discuss how these two different noise components affect window functions in different manners.

Kaspar von Braun; David R. Ciardi

2007-11-27T23:59:59.000Z

397

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1...

398

Cooperative Weather Observations | Data.gov  

NLE Websites -- All DOE Office Websites (Extended Search)

Cooperative Weather Observations Agriculture Community Menu DATA APPS EVENTS DEVELOPER STATISTICS COLLABORATE ABOUT Agriculture You are here Data.gov Communities Agriculture...

399

Quark Matter  

NLE Websites -- All DOE Office Websites (Extended Search)

Quark Quark Matter in Neutron Stars Prashanth Jaikumar Argonne National Laboratory, (PHY) September 7th, 2006 . - p.1/29 Outline * Neutron stars: observations by a theorist . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? ------------------------ * Strange Quark stars: Features and "Findings" . - p.2/29 Outline * Neutron stars: observations by a theorist * Mass-Radius constraints on Equation of State (EoS) * Is quark matter inside neutron stars ruled out? ------------------------

400

Page 1 of 2 `5-Phase' EOS: A Tabular H2O EOS for Shock Physics Codes  

E-Print Network (OSTI)

of the Table The 5-Phase H2O tabular equation of state model includes ice Ih, ice VI, ice VII, liquid determined phase boundaries except for the artificial ice Ih-ice VI boundary and the adjacent liquid boundary density phase boundary occupied by the equilibrium mixtures of ice Ih-vapor and liquid-vapor. The tension

Stewart, Sarah T.

Note: This page contains sample records for the topic "observing system eos" 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

U.S. CMS - U.S. CMS @ Work - Software and Computing Subproject...  

NLE Websites -- All DOE Office Websites (Extended Search)

File Transfer Batch Systems CRAB Quota and Usage Statistics CERN Bluearc Quota and Stats System Status U.S. CMS Grid Access to Mass Storage EOS EOS is a disk based mass...

402

Title: Radar-observed convective characteristics during TWP-ICE  

NLE Websites -- All DOE Office Websites (Extended Search)

Title: Radar-observed convective characteristics during TWP-ICE Title: Radar-observed convective characteristics during TWP-ICE Schumacher, Courtney Texas A&M University Houze, Robert University of Washington May, Peter Bureau or Meteorology Research Centre Frederick, Kaycee Cetrone, Jasmine Vallgren, Andreas Category: Field Campaigns This poster will describe the radar dataset obtained in the Tropical Warm Pool International Cloud Experiment (TWP-ICE), which is to take place 20 January - 14 February 2006 in the vicinity of Darwin, Australia. We will describe the convective systems observed during the project by two scanning C-band Doppler radars, one of which will provide dual-polarization measurements, and ARM's vertically pointing cloud radar and lidar installations. In addition, we will discuss the potential for combining

403

Filtering with Marked Point Process Observations via Poisson Chaos Expansion  

SciTech Connect

We study a general filtering problem with marked point process observations. The motivation comes from modeling financial ultra-high frequency data. First, we rigorously derive the unnormalized filtering equation with marked point process observations under mild assumptions, especially relaxing the bounded condition of stochastic intensity. Then, we derive the Poisson chaos expansion for the unnormalized filter. Based on the chaos expansion, we establish the uniqueness of solutions of the unnormalized filtering equation. Moreover, we derive the Poisson chaos expansion for the unnormalized filter density under additional conditions. To explore the computational advantage, we further construct a new consistent recursive numerical scheme based on the truncation of the chaos density expansion for a simple case. The new algorithm divides the computations into those containing solely system coefficients and those including the observations, and assign the former off-line.

Sun Wei, E-mail: wsun@mathstat.concordia.ca [Concordia University, Department of Mathematics and Statistics (Canada); Zeng Yong, E-mail: zengy@umkc.edu [University of Missouri at Kansas City, Department of Mathematics and Statistics (United States); Zhang Shu, E-mail: zhangshuisme@hotmail.com [Concordia University, Department of Mathematics and Statistics (Canada)

2013-06-15T23:59:59.000Z

404

Observer and Particle Transformations and Newton's Laws  

E-Print Network (OSTI)

A frequently confused point in studies of symmetry violation is the distinction between observer and particle transformations. In this work, we consider a model in which a coefficient in the Standard-Model Extension leads to violations of rotation invariance in Newton's second law. The model highlights the distinction between observer and particle transformations.

T. H. Bertschinger; Natasha A. Flowers; Jay D. Tasson

2013-08-14T23:59:59.000Z

405

Geomagnetic Disturbance (GMD) News and Observer, Edition 3  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that provides information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This is the third issue of our newsletter, which will be published approximately quarterly, and provides progress reports and insights for the industry on this important topic.EPRI is working with the industry to assess system vulnerability and ...

2012-09-27T23:59:59.000Z

406

Geomagnetic Disturbance (GMD) News and Observer, Issue 2  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that provides information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This is the second issue of our newsletter, which will be published approximately quarterly, and provides progress reports and insights for the industry on this important topic.EPRI is working with the industry to assess system vulnerability and ...

2012-09-12T23:59:59.000Z

407

Geomagnetic Disturbance (GMD) News and Observer, First Edition  

Science Conference Proceedings (OSTI)

The Geomagnetic Disturbance (GMD) News and Observer is a new Electric Power Research Institute (EPRI) newsletter that will be published quarterly and will provide information on geomagnetic disturbance projects in development, as well as a summary of new technology developments. This premier issue summarizes the current knowledge about GMDs and how transformers and the power system as a whole can be affected by GMDs. The following articles are featured in this issue: EPRI Executive Update, GMD Primer: Ho...

2012-08-10T23:59:59.000Z

408

Ground-Based Microwave Radiometric Observations of Precipitable Water Vapor: A Comparison with Ground Truth from Two Radiosonde Observing Systems  

Science Conference Proceedings (OSTI)

Dual-channel microwave radiometric measurements of precipitable water vapor are compared with values determined from two types of radiosondes. The first type is used in conventional soundings taken by the National Weather Service. The second is ...

Ed R. Westwater; Michael J. Falls; Ingrid A. Popa Fotino

1989-08-01T23:59:59.000Z

409

First Direct Observation of Spinons and Holons  

NLE Websites -- All DOE Office Websites (Extended Search)

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

410

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons First Observation of Plasmarons in Graphene First Observation of Plasmarons in Graphene Print Wednesday, 30 June 2010 00:00 An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

411

First Direct Observation of Spinons and Holons  

NLE Websites -- All DOE Office Websites (Extended Search)

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

412

Globally Gridded Satellite Observations for Climate Studies  

Science Conference Proceedings (OSTI)

Geostationary satellites have provided routine, high temporal resolution Earth observations since the 1970s. Despite the long period of record, use of these data in climate studies has been limited for numerous reasons, among them that no central archive ...

Kenneth R. Knapp; Steve Ansari; Caroline L. Bain; Mark A. Bourassa; Michael J. Dickinson; Chris Funk; Chip N. Helms; Christopher C. Hennon; Christopher D. Holmes; George J. Huffman; James P. Kossin; Hai-Tien Lee; Alexander Loew; Gudrun Magnusdottir

2011-07-01T23:59:59.000Z

413

Observing Surf-Zone Dispersion with Drifters  

Science Conference Proceedings (OSTI)

Surf-zone dispersion is studied using drifter observations collected within about 200 m of the shoreline (at depths of less than about 5 m) on a beach with approximately alongshore uniform bathymetry and waves. There were about 70 individual ...

Matthew Spydell; Falk Feddersen; R. T. Guza; W. E. Schmidt

2007-12-01T23:59:59.000Z

414

Surface Observations in the Hurricane Environment  

Science Conference Proceedings (OSTI)

Composite analyses of marine surface observations from 37 hurricanes between 1975 and 1998 show that the difference between the sea surface temperature and the surface air temperature significantly increases just outside the hurricane inner core. ...

Joseph J. Cione; Peter G. Black; Samuel H. Houston

2000-05-01T23:59:59.000Z

415

Observations and Mechanisms of GATE Waterspouts  

Science Conference Proceedings (OSTI)

The GATE data base for days 261 and 186 is used for a combined observational and numerical investigation of interacting cumulus processes that may be important in the generation of waterspouts. The results suggest that the existence of cumulus-...

Joanne Simpson; Bruce R. Morton; Michael C. McCumber; Richard S. Penc

1986-04-01T23:59:59.000Z

416

Observations of the Diurnal Tide from Space  

Science Conference Proceedings (OSTI)

This study presents a climatology of mesospheric and lower-thermospheric diurnal tidal winds obtained with the High Resolution Doppler Imager (HRDI) on the Upper Atmosphere Research Satellite (UARS). The observations reveal that although tidal ...

Paul B. Hays; D. L. Wu; The HRDI Science Team

1994-10-01T23:59:59.000Z

417

Coordinated Enhanced Observing Period (CEOP) International Workshop  

Science Conference Proceedings (OSTI)

The Coordinated Enhanced Observing Period (CEOP) International Workshop, sponsored by NOAA Office of Global Programs and NASA Land Surface Hydrology Program, was held on 27 February 1 March 2001 at NASA's Goddard Space Flight Center, Greenbelt, ...

Michael G. Bosilovich; Rick Lawford

2002-10-01T23:59:59.000Z

418

Observations of the Evolution of Orogenic Blocking  

Science Conference Proceedings (OSTI)

The evolution of low-level flow upstream of the Continental Divide (Rocky Mountains) and the Wasatch Range from being unable to surmount the mountain range, to becoming unblocked and blocked again is studied observationally. During two months in ...

Georg J. Mayr; Thomas B. McKee

1995-05-01T23:59:59.000Z

419

Principal Component Analysis of Wind Profiler Observations  

Science Conference Proceedings (OSTI)

Principal component analysis (PCA) is applied to wind profiler observations to study the vertical profile of the wind field and its temporal evolution. The rationale for decomposing timeheight wind profiler data using PCA is twofold. The ...

Christopher R. Williams

1997-06-01T23:59:59.000Z

420

Surface Temperature Observations from AVHRR in FIFE  

Science Conference Proceedings (OSTI)

Observations of the surface radiometric temperature by the AVHRR sensor on board the NOAA-9 satellite during the First ISLSCP (International Satellite Land Surface Climatology Project) Field Experiment conducted in central Kansas during 1987 are ...

T. J. Schmugge; G. M. Schmidt

1998-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

Observations of Breaking Surface Wave Statistics  

Science Conference Proceedings (OSTI)

Breaking surface waves were observed during the Surface Wave Process Program with a novel acoustical instrument that makes use of underwater ambient sound to track individual breaking events. The spatial and temporal statistics of braking waves ...

Li Ding; David M. Farmer

1994-06-01T23:59:59.000Z

422

Estimation of Convective Rainfall from Lightning Observations  

Science Conference Proceedings (OSTI)

The objective of this study is to develop a technique to use lightning observations for estimating convective rainfall. A framework for rainfall estimation is developed in which key elements are 1) the rainfalllightning ratio, that is, the ...

Alberto Tapia; James A. Smith; Michael Dixon

1998-11-01T23:59:59.000Z

423

Filtering Turbulent Sparsely Observed Geophysical Flows  

Science Conference Proceedings (OSTI)

Filtering sparsely turbulent signals from nature is a central problem of contemporary data assimilation. Here, sparsely observed turbulent signals from nature are generated by solutions of two-layer quasigeostrophic models with turbulent cascades ...

John Harlim; Andrew J. Majda

2010-04-01T23:59:59.000Z

424

SLAC National Accelerator Laboratory - CERN: Experiments Observe...  

NLE Websites -- All DOE Office Websites (Extended Search)

CERN: Experiments Observe Particle Consistent with Long-sought Higgs Boson July 5, 2012 from CERN At a seminar held at CERN as a curtain raiser to the year's major particle physics...

425

Scatterometer Observations at High Wind Speeds  

Science Conference Proceedings (OSTI)

Satellite scatterometer winds are commonly validated by comparing them to buoy observations and/or numerical model surface wind analyses. However, the empirical scatterometer algorithm (geophysical model function) has been calibrated against a ...

Lixin Zeng; Robert A. Brown

1998-11-01T23:59:59.000Z

426

MODELING OBSERVATIONAL CONSTRAINTS FOR DARK MATTER HALOS  

SciTech Connect

Observations show that the underlying rotation curves at intermediate radii in spiral and low-surface-brightness galaxies are nearly universal. Further, in these same galaxies, the product of the central density and the core radius ({rho}{sub 0} r{sub 0}) is constant. An empirically motivated model for dark matter halos that incorporates these observational constraints is presented and shown to be in accord with the observations. A model fit to the observations of the galaxy cluster A611 shows that {rho}{sub 0} r{sub 0} for the dark matter halo in this more massive structure is larger by a factor of {approx}20 over that assumed for the galaxies. The model maintains the successful Navarro-Frenk-White form in the outer regions, although the well-defined differences in the inner regions suggest that modifications to the standard cold dark matter picture are required.

Hartwick, F. D. A. [Department of Physics and Astronomy, University of Victoria, Victoria, BC V8W 3P6 (Canada)

2012-12-01T23:59:59.000Z

427

First Direct Observation of Spinons and Holons  

NLE Websites -- All DOE Office Websites (Extended Search)

two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a...

428

The Autocorrelation of Hourly Wind Speed Observations  

Science Conference Proceedings (OSTI)

The autocorrelation of hourly wind speed observations is estimated for seven stations on the west coast of Canada at selected lags ranging from one hour to two months. The estimated autocorrelation function is fitted by a model that includes a ...

Arthur C. Brett; Stanton E. Tuller

1991-06-01T23:59:59.000Z

429

Multisensor Observation of an Atmospheric Undular Bore  

Science Conference Proceedings (OSTI)

A detailed and unique multisensor observation of an undular bore is presented. The data include those from rawinsonde, satellite, two Doppler radars, and a tall instrumented tower. Noteworthy are Doppler radar images that resolve the wave's ...

Pravas R. Mahapatra; Richard J. Doviak; Dusan S. Zrni?

1991-10-01T23:59:59.000Z

430

Freezing Rain: An Observational and Theoretical Study  

Science Conference Proceedings (OSTI)

Data from a Doppler radar, an instrumented aircraft, and several rawinsonde observations during freezing rain and ice pellet events have been analyzed for this study. From these data, 34 soundings were obtained that characterized the vertical ...

Ryan J. Zerr

1997-12-01T23:59:59.000Z

431

First Direct Observation of Spinons and Holons  

NLE Websites -- All DOE Office Websites (Extended Search)

First Direct Observation of Spinons and Holons Print First Direct Observation of Spinons and Holons Print Spin and charge are inseparable traits of an electron, but in one-dimensional solids, a 40-year-old theory predicts their separation into "collective" modes-as independent excitation quanta called spinons and holons. Angle-resolved photoemission spectroscopy (ARPES) should provide the most direct evidence of this spin-charge separation, as the single quasiparticle peak splits into a spinon-holon two-peak structure. However, despite extensive ARPES experiments, the unambiguous observation of the two-peak structure has remained elusive. Working at the ALS, a team of researchers from Korea, Japan, and the U.S. has now observed electron spin-charge separation in a one-dimensional solid. These results hold implications for future developments in several key areas of advanced technology, including high-temperature superconductors, nanowires, and spintronics.

432

Targeted Observations with an Airborne Wind Lidar  

Science Conference Proceedings (OSTI)

This study investigates the possibilities and limitations of airborne Doppler lidar for adaptive observations over the Atlantic Ocean. For the first time, a scanning 2-?m Doppler lidar was applied for targeted measurements during the Atlantic ...

M. Weissmann; R. Busen; A. Drnbrack; S. Rahm; O. Reitebuch

2005-11-01T23:59:59.000Z

433

Experimental observation of a complex periodic window  

E-Print Network (OSTI)

The existence of a special periodic window in the two-dimensional parameter space of an experimental Chua's circuit is reported. One of the main reasons that makes such a window special is that the observation of one implies that other similar periodic windows must exist for other parameter values. However, such a window has never been experimentally observed, since its size in parameter space decreases exponentially with the period of the periodic attractor. This property imposes clear limitations for its experimental detection.

D. M. Maranho; M. S. Baptista; J. C. Sartorelli; I. L. Caldas

2007-12-22T23:59:59.000Z

434

Have Atmospheric Cerenkov Telescopes Observed Dark Matter?  

E-Print Network (OSTI)

Two ground-based experiments have recently independently detected TeV $\\gamma$-rays from the direction of the Galactic center. The observations made by the VERITAS and CANGAROO collaborations are unexpected, although not impossible to interpret in terms of astrophysical sources. Here we examine in detail whether the observed $\\gamma$-rays may arise from the more exotic alternative of annihilations of dark matter particles clustered in the center of the Galaxy.

Dan Hooper; Ignacio de la Calle Perez; Joseph Silk; Francesc Ferrer; Subir Sarkar

2004-04-09T23:59:59.000Z

435

Brief paper: A discrete-time observer design for spacecraft attitude determination using an orthogonality-preserving algorithm  

Science Conference Proceedings (OSTI)

This paper studies a nonlinear discrete-time partial state observer design problem for rigid spacecraft systems, particularly for spacecraft attitude estimation. The construction is inspired by an orthogonality-preserving numerical algorithm, and it ... Keywords: Asymptotic stabilization, Discrete-time observer, Nonlinear sampled-data systems, Orthogonality preservation, Output feedback, Spacecraft systems

Dina Shona Laila; Marco Lovera; Alessandro Astolfi

2011-05-01T23:59:59.000Z

436

Observations of temperature, wind, cirrus, and trace gases in the tropical tropopause transition layer during the MJO  

Science Conference Proceedings (OSTI)

Satellite observations of temperature, optically thin cirrus clouds, and trace gases derived from the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC), Cloud-Aerosol Lidar and Infrared Pathfinder Satellite ...

Katrina S. Virts; John M. Wallace

437

Real-Time Adaptive Observation Guidance Using Singular Vectors for Typhoon Jangmi (200815) in T-PARC 2008  

Science Conference Proceedings (OSTI)

In this study, structures of real-time adaptive observation guidance provided by Yonsei University (YSU) in South Korea during The Observing System Research and Predictability Experiment (THORPEX)-Pacific Asian Regional Campaign (T-PARC) are ...

Hyun Mee Kim; Sung-Min Kim; Byoung-Joo Jung

2011-10-01T23:59:59.000Z

438

Analysis of window-observation recurrence data.  

E-Print Network (OSTI)

??Many systems experience recurrent events. Recurrence data are collected to analyze quantities of interest, such as the mean cumulative number of events. Methods of analysis (more)

Zuo, Jianying

2010-01-01T23:59:59.000Z

439

OBSERVING CORONAL NANOFLARES IN ACTIVE REGION MOSS  

SciTech Connect

The High-resolution Coronal Imager (Hi-C) has provided Fe XII 193A images of the upper transition region moss at an unprecedented spatial ({approx}0.''3-0.''4) and temporal (5.5 s) resolution. The Hi-C observations show in some moss regions variability on timescales down to {approx}15 s, significantly shorter than the minute-scale variability typically found in previous observations of moss, therefore challenging the conclusion of moss being heated in a mostly steady manner. These rapid variability moss regions are located at the footpoints of bright hot coronal loops observed by the Solar Dynamics Observatory/Atmospheric Imaging Assembly in the 94 A channel, and by the Hinode/X-Ray Telescope. The configuration of these loops is highly dynamic, and suggestive of slipping reconnection. We interpret these events as signatures of heating events associated with reconnection occurring in the overlying hot coronal loops, i.e., coronal nanoflares. We estimate the order of magnitude of the energy in these events to be of at least a few 10{sup 23} erg, also supporting the nanoflare scenario. These Hi-C observations suggest that future observations at comparable high spatial and temporal resolution, with more extensive temperature coverage, are required to determine the exact characteristics of the heating mechanism(s).

Testa, Paola; DeLuca, Ed; Golub, Leon; Korreck, Kelly; Weber, Mark [Smithsonian Astrophysical Observatory, 60 Garden street, MS 58, Cambridge, MA 02138 (United States); De Pontieu, Bart; Martinez-Sykora, Juan; Title, Alan [Lockheed Martin Solar and Astrophysics Lab, Org. A021S, Bldg. 252, 3251 Hanover Street, Palo Alto, CA 94304 (United States); Hansteen, Viggo [Institute of Theoretical Astrophysics, University of Oslo, P.O. Box 1029 Blindern, N-0315 Oslo (Norway); Cirtain, Jonathan; Winebarger, Amy; Kobayashi, Ken [NASA Marshall Space Flight Center, ZP 13, Huntsville, AL 35812 (United States); Kuzin, Sergey [P. N. Lebedev Physical institute of the Russian Academy of Sciences, Leninskii prospekt, 53, 119991 Moscow (Russian Federation); Walsh, Robert [University of Central Lancashire, Lancashire, Preston PR1 2HE (United Kingdom); DeForest, Craig, E-mail: ptesta@cfa.harvard.edu [Southwest Research Institute, 1050 Walnut Street, Suite 300, Boulder, CO 80302 (United States)

2013-06-10T23:59:59.000Z

440

The empirical Earth rotation model from VLBI observations  

E-Print Network (OSTI)

AIMS: An alternative to the traditional method for modeling kinematics of the Earth's rotation is proposed. The purpose of developing the new approach is to provide a self-consistent and simple description of the Earth's rotation in a way that can be estimated directly from observations without using intermediate quantities. METHODS: Instead of estimating the time series of pole coordinates, the UT1--TAI angles, their rates, and the daily offsets of nutation, it is proposed to estimate coefficients of the expansion of a small perturbational rotation vector into basis functions. The resulting transformation from the terrestrial coordinate system to the celestial coordinate system is formulated as a product of an a priori matrix of a finite rotation and an empirical vector of a residual perturbational rotation. In the framework of this approach, the specific choice of the a priori matrix is irrelevant, provided the angles of the residual rotation are small enough to neglect their squares. The coefficients of the expansion into the B-spline and Fourier bases, together with estimates of other nuisance parameters, are evaluated directly from observations of time delay or time range in a single least square solution. RESULTS: This approach was successfully implemented in a computer program for processing VLBI observations. The dataset from 1984 through 2006 was analyzed. The new procedure adequately represents the Earth's rotation, including slowly varying changes in UT1--TAI and polar motion, the forced nutations, the free core nutation, and the high frequency variations of polar motion and UT1.

L. Petrov

2006-11-26T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


441

Evaluating service level agreements using observational probes  

Science Conference Proceedings (OSTI)

We report on our use of quantitative modelling in predicting the success of systems and services in achieving Service Level Agreements (SLAs). We construct models of the systems in the stochastic process algebra PEPA[1], and queries in the language of ...

Allan Clark; Stephen Gilmore

2011-01-01T23:59:59.000Z

442

Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations  

Open Energy Info (EERE)

Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations During And After The Volcanic Crisis Of Spring 1990, And Monitoring Prior To The May 2003 Eruption Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Anatahan, Northern Mariana Islands- Reconnaissance Geological Observations During And After The Volcanic Crisis Of Spring 1990, And Monitoring Prior To The May 2003 Eruption Details Activities (0) Areas (0) Regions (0) Abstract: Anatahan island is 9.5 km east-west by 3.5 km north-south and truncated by an elongate caldera 5 km east-west by 2.5 km north-south. A steep-walled pit crater ~1 km across and ~200 m deep occupies the eastern part of the caldera. The island is the summit region of a mostly submarine stratovolcano. The oldest subaerial rocks (stage 1) are exposed low on the

443

Observing AAPI Heritage Month | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Observing AAPI Heritage Month Observing AAPI Heritage Month Observing AAPI Heritage Month May 1, 2012 - 4:42pm Addthis Bill Valdez Bill Valdez Principal Deputy Director What are the key facts? President Obama has also appointed a historic number of highly qualified Asian Americans and Pacific Islanders to senior positions in his Administration Throughout May,the White House Initiative on Asian Americans and Pacific Islanders will be sharing the many ways in which the Obama Administration has helped the Asian American and Pacific Islander community. White House Initiative on Asian Americans and Pacific Islanders Editor's Note: This blog originally appeared on the White House Blog, and is authored by Chris Lu, Assistant to the President and Cabinet Secretary. He is also the Co-Chair of the White House Initiative on Asian

444

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

445

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

446

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

447

Observations of the Askaryan Effect in Ice  

E-Print Network (OSTI)

We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

ANITA collaboration; P. W. Gorham; S. W. Barwick; J. J. Beatty; D. Z. Besson; W. R. Binns; C. Chen; P. Chen; J. M. Clem; A. Connolly; P. F. Dowkontt; M. A. DuVernois; R. C. Field; D. Goldstein; A. Goodhue; C. Hast; C. L. Hebert; S. Hoover; M. H. Israel; J. Kowalski; J. G. Learned; K. M. Liewer; J. T. Link; E. Lusczek; S. Matsuno; B. Mercurio; C. Miki; P. Miocinovic; J. Nam; C. J. Naudet; J. Ng; R. Nichol; K. Palladino; K. Reil; A. Romero-Wolf; M. Rosen; D. Saltzberg; D. Seckel; G. S. Varner; D. Walz; F. Wu

2006-11-03T23:59:59.000Z

448

Observations of the Askaryan Effect in Ice  

SciTech Connect

We report on the first observations of the Askaryan effect in ice: coherent impulsive radio Cherenkov radiation from the charge asymmetry in an electromagnetic (EM) shower. Such radiation has been observed in silica sand and rock salt, but this is the first direct observation from an EM shower in ice. These measurements are important since the majority of experiments to date that rely on the effect for ultra-high energy neutrino detection are being performed using ice as the target medium. As part of the complete validation process for the Antarctic Impulsive Transient Antenna (ANITA) experiment, we performed an experiment at the Stanford Linear Accelerator Center (SLAC) in June 2006 using a 7.5 metric ton ice target, yielding results fully consistent with theoretical expectations.

Gorham, P.W.

2007-01-16T23:59:59.000Z

449

Workshop on observations of recent comets (1990)  

Science Conference Proceedings (OSTI)

Potential interpretations are presented for observations of four comets: Brorsen-Metcalf (1989o), Okazaki-Levy-Rudenko (1989r), Aarseth-Brewington (1989a1), and Austin (1989o1). The relationship of minor species with each other and possible parents as well as with dust are being pursued in a number of investigations. Of particular interest are the abundance ratios of CH{sub 4} to CO and NH{sub 3} to N{sub 2}. The need for closer collaboration betwen observing teams and modelers is examined. The need for dust size distribution as a function of cometocentric distance to be analyzed in closer collaboration between observers and modelers is discussed.

Huebner, W.F.; Wehinger, P.A.; Rahe, J.; Konno, I.

1990-01-01T23:59:59.000Z

450

First Observation of Plasmarons in Graphene  

NLE Websites -- All DOE Office Websites (Extended Search)

First Observation of Plasmarons in Graphene Print First Observation of Plasmarons in Graphene Print An international team of scientists performing angle-resolved photoemission spectroscopy (ARPES) experiments at ALS Beamline 7.0.1 have found that composite particles called plasmarons play a vital role in determining graphene's properties. A plasmaron consists of a charge carrier (electron or hole) coupled with a plasmon-an electron density wave. Although plasmarons were proposed theoretically in the late 1960s, and indirect evidence of them has been found, this work is the first observation of their distinct energy bands in graphene, or indeed in any material. The discovery may hasten the day when graphene can be used for "plasmonics" to build ultrafast computers-perhaps even room-temperature quantum computers-plus a wide range of other tools and applications.

451

High speed imaging television system  

DOE Patents (OSTI)

A television system for observing an event which provides a composite video output comprising the serially interlaced images the system is greater than the time resolution of any of the individual cameras.

Wilkinson, William O. (Silver Spring, MD); Rabenhorst, David W. (Silver Spring, MD)

1984-01-01T23:59:59.000Z

452

Constraining multiple systems with GAIA  

E-Print Network (OSTI)

GAIA will provide observations of some multiple asteroid and dwarf systems. These observations are a way to determine and improve the quantification of dynamical parameters, such as the masses and the gravity fields, in these multiple systems. Here we investigate this problem in the cases of Pluto's and Eugenia's system. We simulate observations reproducing an approximate planning of the GAIA observations for both systems, as well as the New Horizons observations of Pluto. We have developed a numerical model reproducing the specific behavior of multiple asteroid system around the Sun and fit it to the simulated observations using least-square method, giving the uncertainties on the fitted parameters. We found that GAIA will improve significantly the precision of Pluto's and Charon's mass, as well as Petit Prince's orbital elements and Eugenia's polar oblateness.

Beauvalet, L; Arlot, J -E; Bancelin, D; Binzel, R P; Marchis, F

2012-01-01T23:59:59.000Z

453

Towards a dynamical theory of observation  

E-Print Network (OSTI)

We introduce a model of classical and quantum observation based on contextuality and dynamically evolving apparatus. Power sets of classical bits model the four classical states of elementary detectors, viz. the two normal yes/no signal states, the faulty or decommissioned state and the non-existence state. Operators over power set registers are used to describe various physical scenarios such as the construction and decommissioning of physical devices in otherwise empty laboratories, the dynamics of signal states over those detectors, the extraction of information from those states, and multiple observers. We apply our quantum formalism to the Elitzur-Vaidman bomb-tester experiment and the Hardy paradox experiment.

George Jaroszkiewicz

2008-12-16T23:59:59.000Z

454

Probing black holes at low redshift using LISA EMRI observations  

E-Print Network (OSTI)

One of the most exciting potential sources of gravitational waves for the Laser Interferometer Space Antenna (LISA) are the inspirals of approximately solar mass compact objects into massive black holes in the centres of galaxies - extreme mass ratio inspirals (EMRIs). LISA should observe between a few tens and a few hundred EMRIs over the mission lifetime, mostly at low redshifts (z measurement of the parameters of the host system to unprecendented precision. LISA EMRI observations will thus offer a new and unique way to probe black holes at low redshift. In this article we provide a description of the population of EMRI events that LISA is likely to observe, and describe how the numbers of events vary with changes in the underlying assumptions about the black hole population. We also provide fitting functions that characterise LISA's ability to detect EMRIs and which will allow LISA event rates to be computed for arbitrary population models. We finish with a discussion of an ongoing programme that will use these results to assess what constraints LISA observations could place on galaxy evolution models.

Jonathan R Gair

2008-11-02T23:59:59.000Z

455

Comparison of Simulated and Observed Continental Tropical Anvil Clouds and Their Radiative Heating Profiles  

Science Conference Proceedings (OSTI)

Vertically pointing millimeter-wavelength radar observations of anvil clouds extending from mesoscale convective systems (MCSs) that pass over an Atmospheric Radiation Measurement Program (ARM) field site in Niamey, Niger, are compared to anvil ...

Scott W. Powell; Robert A. Houze Jr.; Anil Kumar; Sally A. McFarlane

2012-09-01T23:59:59.000Z

456

An Ocean Observing and Prediction Experiment in Prince William Sound, Alaska  

Science Conference Proceedings (OSTI)

The observing and forecasting conditions of coastal oceans in Alaska is technically challenging because of the mountainous terrain, the notoriously stormy seas, and a complex hydrological system of freshwater from rivers and glaciers. The Alaska Ocean ...

G. Carl Schoch; Yi Chao; Francois Colas; John Farrara; Molly McCammon; Peter Olsson; Gaurav Singhal

2011-08-01T23:59:59.000Z

457

The Development of a Scanning Raman Water Vapor Lidar for Boundary Layer and Tropospheric Observations  

Science Conference Proceedings (OSTI)

A scanning, ultraviolet, Raman water vapor lidar designed primarily for boundary layer measurements has been built and operated by the Los Alamos National Laboratory Ground-Based Earth Observing Network team. The system provides high temporal and ...

W. E. Eichinger; D. I. Cooper; P. R. Forman; J. Griegos; M. A. Osborn; D. Richter; L. L. Tellier; R. Thornton

1999-11-01T23:59:59.000Z

458

Airflow and Precipitation Fields within Deep Alpine Valleys Observed by Airborne Doppler Radar  

Science Conference Proceedings (OSTI)

Although airborne Doppler radar is increasingly relied upon to provide detailed descriptions of mesoscale precipitation systems in remote and complex meteorological settings, the utility of these observations has often been limited by the ...

Olivier Bousquet; Bradley F. Smull

2003-10-01T23:59:59.000Z

459

Loop current order and d-wave superconductivity: Some observable consequences  

E-Print Network (OSTI)

Loop current order has been reported in the pseudogap regime of a few cuprate systems in polarized neutron scattering experiments. Here we study several observable consequences of such order in the d-wave superconducting ...

Allais, Andrea

460

VHF Radar Observations of Gravity-Wave Production by Cold Fronts over Southern Australia  

Science Conference Proceedings (OSTI)

Four extended observational campaigns were conducted during August and November 1988 with an ST (stratospheretroposphere) radar in southern Australia during the passage of cold fronts over the system, giving around 30 days of three-dimensional ...

Stephen D. Eckermann; Robert A. Vincent

1993-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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.


461

Multiscale Observations of Hurricane Dennis (2005): The Effects of Hot Towers on Rapid Intensification  

Science Conference Proceedings (OSTI)

A synthesis of remote sensing and in situ observations throughout the life cycle of Hurricane Dennis (2005) during the NASA Tropical Cloud Systems and Processes (TCSP) experiment is presented. Measurements from the ER-2 Doppler radar (EDOP), the ...

Stephen R. Guimond; Gerald M. Heymsfield; F. Joseph Turk

2010-03-01T23:59:59.000Z

462

Modeled and Observed Variations in Storm Divergence and Stratiform Rain Production in Southeastern Texas  

Science Conference Proceedings (OSTI)

Storm divergence profiles observed by an S-band Doppler radar are compared to ensemble simulations of 10 disparate precipitating systems occurring in warm-season, weakly baroclinic, and strongly baroclinic environments in southeastern Texas. Eight ...

Larry J. Hopper Jr.; Courtney Schumacher

2012-04-01T23:59:59.000Z

463

A Mesoscale Vortex Couplet Observed in the Trailing Anvil of a Multicellular Convective Complex  

Science Conference Proceedings (OSTI)

Observations collected during the OklahomaKansas PRE-STORM experiment are used to document the evolution and structure of a mesoscale vortex couplet that developed in the mesoscale convective system that occurred on 1617 June 1985. The ...

Johannes Verlinde; William R. Cotton

1990-05-01T23:59:59.000Z

464

Monitoring the Performance of the ECMWF Operational Analysis Using the Enhanced TOGA COARE Observational Network  

Science Conference Proceedings (OSTI)

An enhanced atmospheric monitoring effort has been set up during the Intensive Observation Period (IOP) of the Coupled Ocean-Atmosphere Response Experiment (COARE), devoted to better describe the ocean-atmosphere system of the western Pacific ...

Mathieu Nuret; Michel Chong

1996-03-01T23:59:59.000Z

465

A Simulated Future Atmospheric Observation Database Including ATOVS, ASCAT, and DWL  

Science Conference Proceedings (OSTI)

A database for study of the impact of Doppler wind lidar data on numerical weather prediction in Observation System Simulation Experiments was created. Five Doppler wind lidar scenarios, TIROS Operational Vertical Sounder, Advanced TIROS ...

Bernd Dieter Becker; Herv Roquet; Ad Stoffelen

1996-10-01T23:59:59.000Z

466

Numerical Studies of Cyclogenesis Events during the Second Intensive Observation Period (IOP-2) of GALE  

Science Conference Proceedings (OSTI)

A research version of the Navy Operational Regional Atmospheric Prediction System (NORAPS) is used to study cyclogenesis events during the second Intensive Observation Period of the Genesis of Atlantic Lows Experiment (GALE). From 1200 UTC 26 ...

Chi-Sann Liou; Carlyle H. Wash; Stacey M. Heikkinen; Russell L. Elsberry

1990-02-01T23:59:59.000Z

467

High and Dry: New Observations of Tropospheric and Cloud Properties above the Greenland Ice Sheet  

Science Conference Proceedings (OSTI)

Cloud and atmospheric properties strongly influence the mass and energy budgets of the Greenland Ice Sheet (GIS). To address critical gaps in the understanding of these systems, a new suite of cloud- and atmosphere-observing instruments has been installed ...

Matthew D. Shupe; David D. Turner; Von P. Walden; Ralf Bennartz; Maria P. Cadeddu; Benjamin B. Castellani; Christopher J. Cox; David R. Hudak; Mark S. Kulie; Nathaniel B. Miller; Ryan R. Neely; III; William D. Neff; Penny M. Rowe

2013-02-01T23:59:59.000Z

468

The Evolution of an Observed Cold Front. Part II: Mesoscale Dynamics  

Science Conference Proceedings (OSTI)

A detailed analysis is made of a three-dimensional numerical simulation of the evolution of an observed moist frontal system over a 48 h period. The simulated front undergoes an initial period of frontogenetic growth, characterized by an ...

Isidoro Orlanski; Bruce B. Ross

1984-05-01T23:59:59.000Z

469

An Analysis of the Potential for Extreme Temperature Change Based on Observations and Model Simulations  

Science Conference Proceedings (OSTI)

The study analyzes observational climate data for JuneAugust 19772004 and simulations of current and future climate scenarios from a nested GCM/regional climate model system to assess the potential for extreme temperature change over the ...

Barry H. Lynn; Richard Healy; Leonard M. Druyan

2007-04-01T23:59:59.000Z

470

Observations of Height-dependent Pressure-Perturbation Structure of a Strong Mesoscale Gravity Wave  

Science Conference Proceedings (OSTI)

Airborne observations using a downward-looking, dual-frequency, near-infrared, differential absorption lidar (DIAL) system provide the first measurements of the height-dependent pressure-perturbation field associated with a strong mesoscale ...

David O'C. Starr; C. Laurence Korb; Geary K. Schwemmer; Chi Y. Weng

1992-12-01T23:59:59.000Z

471

Doppler Profiler and Radar Observations of Boundary Layer Variability during the Landfall of Tropical Storm Gabrielle  

Science Conference Proceedings (OSTI)

Detailed observations of boundary layer structure were acquired on 14 September 2001, prior to and during the landfall of Tropical Storm Gabrielle. The Mobile Integrated Profiling System (MIPS) and the Shared Mobile Atmospheric Research and ...

Kevin R. Knupp; Justin Walters; Michael Biggerstaff

2006-01-01T23:59:59.000Z

472

TABLE OF CONTENTS SECTION A: PREINTERVIEW OBSERVATION  

U.S. Energy Information Administration (EIA) Indexed Site

TABLE OF CONTENTS TABLE OF CONTENTS SECTION A: PREINTERVIEW OBSERVATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 SECTION B: HOUSING TYPE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 SECTION C: HOME HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 SECTION D: AIR CONDITIONING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 SECTION E: WATER HEATING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 SECTION F: LIGHTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 SECTION G: APPLIANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Cooking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Refrigerators and Freezers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

473

Observing SQL queries in their natural habitat  

Science Conference Proceedings (OSTI)

We describe Habitat, a declarative observational debugger for SQL. Habitat facilitates true language-level (not: plan-level) debugging of, probably flawed, SQL queries that yield unexpected results. Users mark SQL subexpressions ... Keywords: Declarative debugging, SQL, query languages, relational databases

Torsten Grust; Jan Rittinger

2013-04-01T23:59:59.000Z

474

Fermi Observations of Gamma?ray Bursts  

Science Conference Proceedings (OSTI)

The gamma?ray emission mechanism of Gamma?ray bursts (GRBs) are still unknown. Fermi Gamma?ray Space Telescope successfully detected high?energy (> 100 MeV) emission from 17 GRBs since its launch. Fermi revealed the distinct temporal behaviors and extra spectral component from high?energy emission. These new observational results are driving many theoretical implications

Masanori Ohno; The Fermi?LAT collaborations; The GBM collaborations

2010-01-01T23:59:59.000Z

475

A Typhoon Observed with the MU Radar  

Science Conference Proceedings (OSTI)

During the passage of Typhoon 8719 a 60-h continuous observation was made of the troposphere and the lower stratosphere with the MU (middle and upper atmosphere) radar. Height profiles of the wind velocity vector were measured every 2.5 min with ...

Toru Sato; Naoki Ao; Mamoru Yamamoto; Shoichiro Fukao; Toshitaka Tsuda; Susumu Kato

1991-03-01T23:59:59.000Z

476

Hadley Cell Widening: Model Simulations versus Observations  

Science Conference Proceedings (OSTI)

Observations show that the Hadley cell has widened by about 25 since 1979. This widening and the concomitant poleward displacement of the subtropical dry zones may be accompanied by large-scale drying near 30N and 30S. Such drying poses a ...

Celeste M. Johanson; Qiang Fu

2009-05-01T23:59:59.000Z

477

Negative Energy Seen By Accelerated Observers  

E-Print Network (OSTI)

The sampled negative energy density seen by inertial observers, in arbitrary quantum states is limited by quantum inequalities, which take the form of an inverse relation between the magnitude and duration of the negative energy. The quantum inequalities severely limit the utilization of negative energy to produce gross macroscopic effects, such as violations of the second law of thermodynamics. The restrictions on the sampled energy density along the worldlines of accelerated observers are much weaker than for inertial observers. Here we will illustrate this with several explicit examples. We consider the worldline of a particle undergoing sinusoidal motion in space in the presence of a single mode squeezed vacuum state of the electromagnetic field. We show that it is possible for the integrated energy density along such a worldline to become arbitrarily negative at a constant average rate. Thus the averaged weak energy condition is violated in these examples.This can be the case even when the particle moves at non-relativistic speeds. We use the Raychaudhuri equation to show that there can be net defocussing of a congruence of these accelerated worldlines. This defocussing is an operational signature of the negative integrated energy density. These results in no way invalidate nor undermine either the validity or utility of the quantum inequalities for inertial observers. In particular, they do not change previous constraints on the production of macroscopic effects with negative energy, e.g., the maintenance of traversable wormholes.

L. H. Ford; Thomas A. Roman

2013-02-12T23:59:59.000Z

478

Comparing Two Approaches for Assessing Observation Impact  

Science Conference Proceedings (OSTI)

Langland and Baker introduced an approach to assess the impact of observations on the forecasts. In that approach, a state-space aspect of the forecast is defined and a procedure is derived ultimately relating changes in the aspect with changes in ...

Ricardo Todling

2013-05-01T23:59:59.000Z

479

Observational Constraints on Open Inflation Models  

E-Print Network (OSTI)

We discuss observational constraints on models of open inflation. Current data from large-scale structure and the cosmic microwave background prefer models with blue spectra and/or Omega_0 >= 0.3--0.5. Models with minimal anisotropy at large angles are strongly preferred.

Martin White; Joe Silk

1996-08-27T23:59:59.000Z

480

Theory of cooling neutron stars versus observations  

E-Print Network (OSTI)

We review current state of neutron star cooling theory and discuss the prospects to constrain the equation of state, neutrino emission and superfluid properties of neutron star cores by comparing the cooling theory with observations of thermal radiation from isolated neutron stars.

Yakovlev, D G; Kaminker, A D; Potekhin, A Yu

2007-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "observing system eos" 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

GOES Observation of a Rapidly Melting Snowband  

Science Conference Proceedings (OSTI)

GOES observation of rapid dissipation of a 510 cm (24 inches) depth snowband over the central and upper Mississippi River valley on 15 April 1980 is presented. Differences in the local weather between the stations with and without melting snow ...

Carlyle H. Wash; Delain A. Edman; John Zapotocny

1981-06-01T23:59:59.000Z

482

DOW Radar Observations of Wind Farms  

Science Conference Proceedings (OSTI)

The growth of the wind industry in recent years has motivated investigation into wind farm interference with the operation of the nationwide Weather Surveillance Radar-1988 Doppler (WSR-88D) network. Observations of a wind farm were taken with a Doppler ...

Mallie Toth; Erin Jones; Dustin Pittman; David Solomon

2011-08-01T23:59:59.000Z

483

An Observational Study of the Dryline  

Science Conference Proceedings (OSTI)

This study presents analyses of data collected in the vicinity of a cloud-free dryline that occurred in western Oklahoma on 24 May 1989. Observations reveal sharp contrasts across the quasi-stationary, north-south dryline during midafternoon. Of ...

Conrad L. Ziegler; Carl E. Hane

1993-04-01T23:59:59.000Z

484

Overtone Mobility Spectrometry: Part 1. Experimental Observations  

E-Print Network (OSTI)

introduce a new approach for isolating ions having specific mobilities (or collision cross sections). IonsARTICLES Overtone Mobility Spectrometry: Part 1. Experimental Observations Ruwan T. Kurulugama, Indiana University, Bloomington, Indiana, USA A new method that allows a linear drift tube to be operated

Clemmer, David E.

485

Observations of Ferroelastic Switching by Raman Spectroscopy  

E-Print Network (OSTI)

Thermal barrier coatings (TBCs) have become an important part of turbine technology by providing thermal protection to the underlying metallic components. These coatings are typically made from a zirconia-based ceramics which have a low thermal conductivity and thermal expansion coefficients similar to those of the superalloys. Early failure in these coatings is most often due to foreign object damage and erosion resulting in delamination and spallation. To protect against these types of failure, new materials with increased toughness are needed. There are two main toughening mechanisms in ceramics: transformation toughening, which is limited to low temperature applications and ferroelastic toughening which is accessible at all temperatures. Ferroelastic toughening occurs when the c-axis of the tetragonal grain undergoes reorientation under the application of an external stress. In this study, ferroelastic toughening is examined by Raman spectroscopy. It is shown that by using polarized confocal Raman spectroscopy one can not only observed the ferroelastic process, but also measure the parameters that control the increase in toughness observed. Ferroelastic toughening was observed in two ways in the 18mol% ceria stabilized zirconia (18CSZ) samples studied here. Samples were either exposed to indentation damage or uniaxial loading. In both of these cases maps of the ceramic surface were taken using Raman spectroscopy following loading and the relative intensities of the tetragonal peaks were analyzed. The resulting intensity profiles were used to monitor the reorientation of domains corresponding to ferroelastic toughening. Changes in domain orientation were observed that corresponded to the reorientation of domains along cracks as well as on a larger scale along those cracks. Domain reorientation was also observed under uniaxial loading and the stresses required for domain formation and movement were measured.

Bolon, Amy Marie

2011-12-01T23:59:59.000Z

486

Evaluation and Intercomparison of Cloud Fraction and Radiative Fluxes in Recent Reanalyses over the Arctic Using BSRN Surface Observations  

Science Conference Proceedings (OSTI)

With continual advancements in data assimilation systems, new observing systems, and improvements in model parameterizations, several new atmospheric reanalysis datasets have recently become available. Before using these new reanalyses it is ...

Behnjamin J. Zib; Xiquan Dong; Baike Xi; Aaron Kennedy

2012-04-01T23:59:59.000Z

487

Assimilation of Satellite Imager Data and Surface Observations to Improve Analysis of Circulations Forced by Cloud Shading Contrasts  

Science Conference Proceedings (OSTI)

An assimilation system that performs continuous assimilation of satellite imager data and intermittent assimilation of hourly surface observations is described. The system was applied to a case study of the southeast United States that was ...

Frank H. Ruggiero; George D. Modica; Alan E. Lipton

2000-02-01T23:59:59.000Z

488

An observer model for lesion detectability in contrast-enhanced digital mammography  

Science Conference Proceedings (OSTI)

Lesion detectability in contrast-enhanced digital mammography (CEDM) was studied using a model observer for task-based system evaluation Digital mammography (DM) and CEDM images were simulated to include a realistic mammographic appearance and contrast ... Keywords: contrast enhancement, image perception, image quality, mammography, observer model

Melissa L. Hill; James G. Mainprize; Martin J. Yaffe

2010-06-01T23:59:59.000Z

489

Smoke-Column Observations from Two Forest Fires Using Doppler Lidar and Doppler Radar  

Science Conference Proceedings (OSTI)

To demonstrate the usefulness of active remote-sensing systems in observing forest fire plume behavior, we studied two fires, one using a 3.2-cm-wavelength Doppler radar, and one more extensively, using Doppler lidar. Both instruments observed ...

R. M. Banta; L. D. Olivier; E. T. Holloway; R. A. Kropfli; B. W. Bartram; R. E. Cupp; M. J. Post

1992-11-01T23:59:59.000Z

490

Real-Time Quality Control of Wave Observations in the North Sea  

Science Conference Proceedings (OSTI)

The use of ocean wave data in new data assimilation techniques prompted the development of a real-time quality control system for wave height and wave period observations. Over the North Sea, a relatively large number of wave observations, as ...

Mara Paula Etala; Gerrit Burgers

1994-12-01T23:59:59.000Z

491

Lidar Observations of the Fine-Scale Variability of Marine Stratocumulus Clouds  

Science Conference Proceedings (OSTI)

A Nd:YAG lidar system was flown aboard NASA's ER-2 high altitude aircraft. Observations of cloud top height were made with 70 m along-track and 7.5 m vertical-height resolution. The lidar data observed from an East Pacific stratocumulus cloud ...

Reinout Boers; James D. Spinhirne; William D. Hart

1988-07-01T23:59:59.000Z

492

Observables in Strongly Coupled Anisotropic Theories  

E-Print Network (OSTI)

We review certain anisotropic gauge/gravity dualities, focusing more on a theory with space dependent axion term. Then we discuss and also present some new results for several observables: the static potential and force, the imaginary part of the static potential, the quark dipole in the plasma wind, the drag force and diffusion time, the jet quenching of heavy and light quarks, the energy loss of rotating quarks, the photon production and finally the violation of the holographic viscosity over entropy bound. The corresponding weakly coupled results are also discussed. Finally we investigate the bounds of the parameters of the current strongly coupled anisotropic theories attempting to match them with the observed quark-gluon plasma and report the problems appear.

Dimitrios Giataganas

2013-06-06T23:59:59.000Z

493

Fermi Observations of Gamma-ray Bursts  

SciTech Connect

The gamma-ray emission mechanism of Gamma-ray bursts (GRBs) are still unknown. Fermi Gamma-ray Space Telescope successfully detected high-energy (> 100 MeV) emission from 17 GRBs since its launch. Fermi revealed the distinct temporal behaviors and extra spectral component from high-energy emission. These new observational results are driving many theoretical implications, such as leptonic, hadronic and afterglow origin. The highest energy photon detected by Fermi gives a constraint on the bulk Lorentz factor of the ultra-relativistic jets of GRBs. The impact of the Fermi GRB observations extends not only to the GRB-related issues but also to the outside GRB physics, such as quantum gravity and model of the extra galactic background light.

Ohno, Masanori [Institute of Space and Astronautical Science, JAXA, 3-1-1 Yoshinodai, Chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan)

2010-10-15T23:59:59.000Z

494

Variations in task and the ideal observer  

Science Conference Proceedings (OSTI)

In most previous studies involving the ideal observer, the task considered has been that of simple detection where it is assumed that there is complete a priori knowledge of the background and of the possible object's shape, amplitude, and position. It is shown that redefining the detection task to include the possibility of an unknown, slowly varying background reduces the importance of the low-frequency components in the image for the ideal observer. More complicated tasks than object detection are also considered, such as determination of an object's position and width and the resolution of two objects. These higher-order tasks further enhance the importance of the high-frequency information content of the image.

Hanson, K.M.

1983-01-01T23:59:59.000Z

495

Self-potential observations during hydraulic fracturing  

SciTech Connect

The self-potential (SP) response during hydraulic fracturing of intact Sierra granite was investigated in the laboratory. Excellent correlation of pressure drop and SP suggests that the SP response is created primarily by electrokinetic coupling. For low pressures, the variation of SP with pressure drop is linear, indicating a constant coupling coefficient (Cc) of -200 mV/MPa. However for pressure drops >2 MPa, the magnitude of the Cc increases by 80% in an exponential trend. This increasing Cc is related to increasing permeability at high pore pressures caused by dilatancy of micro-cracks, and is explained by a decrease in the hydraulic tortuosity. Resistivity measurements reveal a decrease of 2% prior to hydraulic fracturing and a decrease of {approx}35% after fracturing. An asymmetric spatial SP response created by injectate diffusion into dilatant zones is observed prior to hydraulic fracturing, and in most cases this SP variation revealed the impending crack geometry seconds before failure. At rupture, injectate rushes into the new fracture area where the zeta potential is different than in the rock porosity, and an anomalous SP spike is observed. After fracturing, the spatial SP distribution reveals the direction of fracture propagation. Finally, during tensile cracking in a point load device with no water flow, a SP spike is observed that is caused by contact electrification. However, the time constant of this event is much less than that for transients observed during hydraulic fracturing, suggesting that SP created solely from material fracture does not contribute to the SP response during hydraulic fracturing.

Moore, Jeffrey R.; Glaser, Steven D.

2007-09-13T23:59:59.000Z

496

LNG Observer: Second Qatargas train goes onstream  

Science Conference Proceedings (OSTI)

The January-February, 1997 issue of the LNG Observer is presented. The following topics are discussed: second Qatargas train goes onstream; financing for the eighth Indonesian liquefaction train; Koreans take stakes in Oman LNG; US imports and exports of LNG in 1996; A 60% increase in proved reserves on the North West Shelf; proposals for Indian LNG terminal CEDIGAZ forecasts world LNG trade by 2010; growth for North African gas production and exports; and new forecast sees strong growth for Asian gas.

NONE

1997-01-01T23:59:59.000Z

497

Quantum mechanics problems in observer's mathematics  

Science Conference Proceedings (OSTI)

This work considers the ontology, guiding equation, Schrodinger's equation, relation to the Born Rule, the conditional wave function of a subsystem in a setting of arithmetic, algebra and topology provided by Observer's Mathematics (see www.mathrelativity.com). Observer's Mathematics creates new arithmetic, algebra, geometry, topology, analysis and logic which do not contain the concept of continuum, but locally coincide with the standard fields. Certain results and communications pertaining to solutions of these problems are provided. In particular, we prove the following theorems: Theorem I (Two-slit interference). Let {Psi}{sub 1} be a wave from slit 1, {Psi}{sub 2} - from slit 2, and {Psi} = {Psi}{sub 1}+{Psi}{sub 2}. Then the probability of {Psi} being a wave equals to 0.5. Theorem II (k-bodies solution). For W{sub n} from m-observer point of view with m>log{sub 10}((2 Multiplication-Sign 10{sup 2n}-1){sup 2k}+1), the probability of standard expression of Hamiltonian variation is less than 1 and depends on n,m,k.

Khots, Boris; Khots, Dmitriy [Compressor Controls Corp, Des Moines, Iowa (United States); iMath Consulting LLC, Omaha, Nebraska (United States)

2012-11-06T23:59:59.000Z

498

Observation-based test set generation  

E-Print Network (OSTI)

When circuits are manufactured, there are unavoidable defects that occur in a small but significant portion of the products. Input test patterns that can detect these defects are uniquely generated for each circuit in advance of their production. Current test set generation relies primarily on the "stuck-at" model, which both excites and observes every site of the circuit. However, a test set with good stuck-at fault coverage will not necessarily find all the defects in a circuit. Other models, such as bridging surrogates and transition surrogates, can also be considered when evaluating the quality of a test set. My research explores the role that observation alone plays in generating a set of valuable tests. I compare the performance of test patterns generated with traditional detection methods and ones made only considering the observation of each site. I also compare the lengths of each test set, with the goal of finding shorter and more effective tests that achieve an acceptable defective part level for a circuit.

Cobb, Jeffrey Lee

2004-01-01T23:59:59.000Z

499

Observation of the submillimeter cosmic background spectrum  

SciTech Connect

An experimental measurement of the spectrum of the submillimeter cosmic background radiation is described. The experiment consists of measuring the night sky emission at an altitude of 39 km, correcting for the atmospheric molecular line emission, and placing limits on the contamination from sources of continuum radiation such as the apparatus itself and the earth. The observations were made on 24 July 1974 using a fully calibrated liquid-helium-cooled balloon- borne spectrophotometer. Important features of the apparatus include a cooled antenna, a polarizing interferometer, and a germanium bolometric detector. The characterization of the spectrophotometer includes the large angle response and emission of the antenna. The calibration of the instrument and corrections to the observed sky spectrum are based on measurements made during the flight. A simple model of the molecular line emission is used to determine the atmospheric contribution. The resulting spectrum covers the frequency range from 4 to 17 cm$sup -1$ and establishes that the cosmic background radiation follows the high frequency quantum cutoff for a 3K blackbody. A blackbody temperature of 2.99/sub -.$sub 14$/$sup +$.$sup 07$/K is deduced from our data. The present status of the cosmic background observations, which span more than three decades in frequency, is analyzed and it is concluded that they are all consistent with a blackbody temperature of 2.90 +- .04K (+- 1 SIGMA). This firmly supports the Big Bang cosmological model of the universe. (auth)

Woody, D.P.

1975-11-13T23:59:59.000Z

500

Ultra High-Energy Cosmic Ray Observations  

E-Print Network (OSTI)

The year 2007 has furnished us with outstanding results about the origin of the most energetic cosmic rays: a flux suppression as expected from the GZK-effect has been observed in the data of the HiRes and Auger experiments and correlations between the positions of nearby AGN and the arrival directions of trans-GZK events have been observed by the Pierre Auger Observatory. The latter finding marks the beginning of ultra high-energy cosmic ray astronomy and is considered a major breakthrough starting to shed first light onto the sources of the most extreme particles in nature. This report summarizes those observations and includes other major advances of the field, mostly presented at the 30th International Cosmic Ray Conference held in Merida, Mexico, in July 2007. With increasing statistics becoming available from current and even terminated experiments, systematic differences amongst different experiments and techniques can be studied in detail which is hoped to improve our understanding of experimental tec...

Kampert, Karl-Heinz

2008-01-01T23:59:59.000Z