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Sample records for ackerman gg mace

  1. ackerman | The Ames Laboratory

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

    ackerman Ames Laboratory Profile David Ackerman Associate Chemical & Biological Sciences 2025 Black Engineering Phone Number: 515-294-1638 Email Address: ackerman...

  2. Jennifer Ackerman | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Jennifer Ackerman Jennifer Ackerman Phone (202) 586-3860; E-mail jennifer.ackerman@hq.doe.gov Last Name Ackerman First Name Jennifer Title Director, Human Capital Policy

  3. ackerman-98.pdf

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

    One-Year Cloud Climatology for the Southern Great Plains Site T. P. Ackerman, R. T. Marchand, and E. E. Clothiaux Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction The addition of the millimeter wave cloud radar (MMCR) to the suite of instruments at the Southern Great Plains (SGP) site has provided the necessary observations to produce a cloud climatology. Data from the MMCR are currently being combined with data from the Belfort laser

  4. ackerman-99.PDF

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

    Paradigm for Testing Cloud Parameterizations T. P. Ackerman, M. Sengupta, and E. E. Clothiaux The Pennsylvania State University University Park, Pennsylvania Introduction One of the main goals of the Atmospheric Radiation Measurement (ARM) Program is improvement of cloud and radiation parameterizations in general circulation models. This problem can be logically addressed within a three-step framework: 1) prediction of clouds from thermodynamic fields, 2) parameterization of microphysical

  5. Technical Sessions T. Ackerman, B. Albrecht, D. Lamb, N. Seaman...

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

    T. Ackerman, B. Albrecht, D. Lamb, N. Seaman, D. Thomson, and T. Warner Department of Meteorology The Perlnsylvania State University University Park, PA 16802 operational ...

  6. Kate Petersen Mace

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

    Kate Petersen Mace About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart ESnet Leadership Administration Advanced Network Technologies Cybersecurity Infrastructure, Identity & Collaboration Network Engineering Network Planning Operational Enhancements Office of the CTO Science Engagement Tools Team Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1

  7. ARM - VAP Product - mergesonde2mace

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

    Productsmergesondemergesonde2mace Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.5439/1095335 [ What is this? ] Generate Citation ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send VAP Output : MERGESONDE2MACE Merged Sounding profiles derived with second Mace algorithm Active Dates 2005.04.20 - 2007.01.07 Originating VAP Process Merged Sounding : MERGESONDE Measurements The measurements

  8. ARM - VAP Product - mergesonde1mace

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

    Productsmergesondemergesonde1mace Documentation Data Management Facility Plots (Quick Looks) Citation DOI: 10.54391034922 What is this? Generate Citation ARM Data Discovery...

  9. ARM XDC Datastreams

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

    ... Bulletin of the American Meteorological Society 81: 797-808. Spangenberg, DA, GG Mace, TP Ackerman, NL Seaman, and BJ Soden. 1997. "Evaluation of Model Simulated Upper-Tropospheric ...

  10. (References: Klein SA, RB McCoy, H Morrison, AS Ackerman, A

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

    of cloud microphysics can lead to improved simulations. The high-quality observations and broad participation of the modeling community in this study points to the importance of Arctic mixed-phase clouds as a key target for climate modeling centers to improve with future cloud parameterization developments. (References: Klein SA, RB McCoy, H Morrison, AS Ackerman, A Avramov, G de Boer, M Chen, JN Cole, AD Del Genio, M Falk, MJ Foster, A Fridlind, JC Golaz, T Hashino, JY Harrington, C Hoose, MF

  11. Lactobacillus rhamnosus GG-supplemented formula expands butyrate...

    Office of Scientific and Technical Information (OSTI)

    rhamnosus GG-supplemented formula expands butyrate-producing bacterial strains in food allergic infants Prev Next Title: Lactobacillus rhamnosus GG-supplemented formula...

  12. Resolved multifrequency radio observations of GG Tau

    SciTech Connect (OSTI)

    Andrews, Sean M.; Birnstiel, T.; Rosenfeld, K. A.; Wilner, D. J.; Chandler, Claire J.; Pérez, L. M.; Isella, Andrea; Ricci, L.; Carpenter, J. M.; Calvet, N.; Corder, S. A.; Deller, A. T.; Dullemond, C. P.; Greaves, J. S.; Harris, R. J.; Henning, Th.; Linz, H.; Kwon, W.; Lazio, J.; Mundy, L. G.; and others

    2014-06-01

    We present subarcsecond resolution observations of continuum emission associated with the GG Tau quadruple star system at wavelengths of 1.3, 2.8, 7.3, and 50 mm. These data confirm that the GG Tau A binary is encircled by a circumbinary ring at a radius of 235 AU with a FWHM width of ∼60 AU. We find no clear evidence for a radial gradient in the spectral shape of the ring, suggesting that the particle size distribution is spatially homogeneous on angular scales ≳0.''1. A central point source, likely associated with the primary component (GG Tau Aa), exhibits a composite spectrum from dust and free-free emission. Faint emission at 7.3 mm is observed toward the low-mass star GG Tau Ba, although its origin remains uncertain. Using these measurements of the resolved, multifrequency emission structure of the GG Tau A system, models of the far-infrared to radio spectrum are developed to place constraints on the grain size distribution and dust mass in the circumbinary ring. The non-negligible curvature present in the ring spectrum implies a maximum particle size of 1-10 mm, although we are unable to place strong constraints on the distribution shape. The corresponding dust mass is 30-300 M {sub ⊕}, at a temperature of 20-30 K. We discuss how this significant concentration of relatively large particles in a narrow ring at a large radius might be produced in a local region of higher gas pressures (i.e., a particle 'trap') located near the inner edge of the circumbinary disk.

  13. Decays Z{yields}gg{gamma} and Z{sup '}{yields}gg{gamma} in the minimal 331 model

    SciTech Connect (OSTI)

    Flores-Tlalpa, A.; Montano, J.; Ramirez-Zavaleta, F.; Toscano, J. J.

    2009-10-01

    The one-loop induced Z{yields}gg{gamma} and Z{sup '}{yields}gg{gamma} decays are studied within the context of the minimal 331 model, which predicts the existence of new gauge bosons and three exotic quarks. It is found that the Z{yields}gg{gamma} decay is insensitive to the presence of the exotic quarks, as it is essentially governed by the first two families of known quarks. As to the Z{sup '}{yields}gg{gamma} decay, it is found that the exotic quark contribution dominates and that for a heavy Z{sup '} boson it leads to a {gamma}(Z{sup '}{yields}gg{gamma}) that is more than 1 order of magnitude larger than that associated with {gamma}(Z{sup '}{yields}ggg). This result may be used to distinguish a new neutral Z{sup '} boson from those models that do not introduce exotic quarks.

  14. Research Highlight

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

    A Decade and Counting Download a printable PDF Submitter: Long, C. N., NOAA Global Monitoring Division/CIRES Area of Research: Radiation Processes Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Long CN, SA McFarlane, A Del Genio, P Minnis, TP Ackerman, J Mather, J Comstock, GG Mace, M Jensen, and C Jakob. 2013. "ARM research in the equatorial western Pacific - a decade and counting." Bulletin of the American Meteorological Society, 94(5),

  15. ARM - Publications: Science Team Meeting Documents

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

    Cirrus Cloud Statistics from a Cloud-Resolving Model Simulation Compared to Cloud Radar Observations Krueger, S.K. (a), Luo, Y. (a), Mace, G.G. (a), and Xu, K.-M. (b), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Mace, Clothiaux, and Ackerman (2000; MCA) determined the properties of cirrus clouds derived from one year (December 1996 to November 1997) of MMCR data collected at the SGP ARM site in Oklahoma. They also

  16. ARM TR-008

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

    ... April 2006, ARM TR-073 7.7 Bibliography Albrecht, BA, TP Ackerman, G Mace, DW Thomson, MA ... House. Clothiaux, EE, MA Miller, BA Albrecht, TA Ackerman, J Verlinde, DM Babb, ...

  17. X:\\ARM_19~1\\P155-184.WPD

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

    3 Examination of Objective Analysis Precision Using Wind Profiler and Radiosonde Network Data G. G. Mace and T. P. Ackerman Penn State University, Department of Meteorology ...

  18. BiGG Models: A platform for integrating, standardizing and sharing genome-scale models

    SciTech Connect (OSTI)

    King, Zachary A.; Lu, Justin; Drager, Andreas; Miller, Philip; Federowicz, Stephen; Lerman, Joshua A.; Ebrahim, Ali; Palsson, Bernhard O.; Lewis, Nathan E.

    2015-10-17

    In this study, genome-scale metabolic models are mathematically structured knowledge bases that can be used to predict metabolic pathway usage and growth phenotypes. Furthermore, they can generate and test hypotheses when integrated with experimental data. To maximize the value of these models, centralized repositories of high-quality models must be established, models must adhere to established standards and model components must be linked to relevant databases. Tools for model visualization further enhance their utility. To meet these needs, we present BiGG Models (http://bigg.ucsd.edu), a completely redesigned Biochemical, Genetic and Genomic knowledge base. BiGG Models contains more than 75 high-quality, manually-curated genome-scale metabolic models. On the website, users can browse, search and visualize models. BiGG Models connects genome-scale models to genome annotations and external databases. Reaction and metabolite identifiers have been standardized across models to conform to community standards and enable rapid comparison across models. Furthermore, BiGG Models provides a comprehensive application programming interface for accessing BiGG Models with modeling and analysis tools. As a resource for highly curated, standardized and accessible models of metabolism, BiGG Models will facilitate diverse systems biology studies and support knowledge-based analysis of diverse experimental data.

  19. BiGG Models: A platform for integrating, standardizing and sharing genome-scale models

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    King, Zachary A.; Lu, Justin; Drager, Andreas; Miller, Philip; Federowicz, Stephen; Lerman, Joshua A.; Ebrahim, Ali; Palsson, Bernhard O.; Lewis, Nathan E.

    2015-10-17

    In this study, genome-scale metabolic models are mathematically structured knowledge bases that can be used to predict metabolic pathway usage and growth phenotypes. Furthermore, they can generate and test hypotheses when integrated with experimental data. To maximize the value of these models, centralized repositories of high-quality models must be established, models must adhere to established standards and model components must be linked to relevant databases. Tools for model visualization further enhance their utility. To meet these needs, we present BiGG Models (http://bigg.ucsd.edu), a completely redesigned Biochemical, Genetic and Genomic knowledge base. BiGG Models contains more than 75 high-quality, manually-curated genome-scalemore » metabolic models. On the website, users can browse, search and visualize models. BiGG Models connects genome-scale models to genome annotations and external databases. Reaction and metabolite identifiers have been standardized across models to conform to community standards and enable rapid comparison across models. Furthermore, BiGG Models provides a comprehensive application programming interface for accessing BiGG Models with modeling and analysis tools. As a resource for highly curated, standardized and accessible models of metabolism, BiGG Models will facilitate diverse systems biology studies and support knowledge-based analysis of diverse experimental data.« less

  20. PowerPoint Presentation

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

    ... Hour Hour Height (km) Comparison of Microbase, Mace and Marchand Products References: Mace, GG, et al. 2006. "Cloud radiative forcing at the ARM Climate Research Facility: Part 1. ...

  1. CIRCUMBINARY GAS ACCRETION ONTO A CENTRAL BINARY: INFRARED MOLECULAR HYDROGEN EMISSION FROM GG Tau A

    SciTech Connect (OSTI)

    Beck, Tracy L.; Lubow, S. H.; Bary, Jeffrey S.; Dutrey, Anne; Guilloteau, Stephane; Pietu, Vincent; Simon, M. E-mail: lubow@stsci.edu E-mail: Anne.Dutrey@obs.u-bordeaux1.fr E-mail: pietu@iram.fr

    2012-07-20

    We present high spatial resolution maps of ro-vibrational molecular hydrogen emission from the environment of the GG Tau A binary component in the GG Tau quadruple system. The H{sub 2} v = 1-0 S(1) emission is spatially resolved and encompasses the inner binary, with emission detected at locations that should be dynamically cleared on several hundred year timescales. Extensions of H{sub 2} gas emission are seen to {approx}100 AU distances from the central stars. The v = 2-1 S(1) emission at 2.24 {mu}m is also detected at {approx}30 AU from the central stars, with a line ratio of 0.05 {+-} 0.01 with respect to the v = 1-0 S(1) emission. Assuming gas in LTE, this ratio corresponds to an emission environment at {approx}1700 K. We estimate that this temperature is too high for quiescent gas heated by X-ray or UV emission from the central stars. Surprisingly, we find that the brightest region of H{sub 2} emission arises from a spatial location that is exactly coincident with a recently revealed dust 'streamer' which seems to be transferring material from the outer circumbinary ring around GG Tau A into the inner region. As a result, we identify a new excitation mechanism for ro-vibrational H{sub 2} stimulation in the environment of young stars. The H{sub 2} in the GG Tau A system appears to be stimulated by mass accretion infall as material in the circumbinary ring accretes onto the system to replenish the inner circumstellar disks. We postulate that H{sub 2} stimulated by accretion infall could be present in other systems, particularly binaries and 'transition disk' systems which have dust-cleared gaps in their circumstellar environments.

  2. New class of supersymmetric signatures in the processes gg{yields}HH', VH

    SciTech Connect (OSTI)

    Gounaris, G. J.; Layssac, J.; Renard, F. M.

    2009-07-01

    Within the minimal supersymmetric model (MSSM) and standard model (SM) frameworks, we analyze the 1loop electroweak predictions for the helicity amplitudes describing the 17 processes gg{yields}HH', and the 9 processes gg{yields}VH; where H, H{sup '} denote Higgs or Goldstone bosons, while V=Z, W{sup {+-}}. Concentrating on MSSM, we then investigate how the asymptotic helicity conservation (HCns) property of supersymmetry (SUSY) affects the amplitudes at the LHC energy range and what is the corresponding situation in the SM, where no HCns theorem exists. HCns is subsequently used to construct many relations among the cross sections of the above MSSM processes, depending only on the standard MSSM angles {alpha} and {beta} characterizing the two Higgs doublets. These relations should be asymptotically exact but as the energy decreases toward the LHC range, mass-depending deviations should start appearing. Provided the SUSY scale is not too high, these relations may remain roughly correct, even at the LHC energy range.

  3. mace-98.pdf

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

    39 Attachment 1 Page 1 of 5 Part III - Section J Appendix G List of Applicable Directives and NNSA Policy Letters November 23, 2005 In addition to the list of applicable directives referenced below, the contractor shall also comply with supplementary directives (e.g., manuals), which are invoked by a Contractor Requirements Document (CRD) attached to a directive referenced below. DIRECTIVE NUMBER DATE DOE DIRECTIVE TITLE APPH Chapter X Revision 10 09/08/98 Accounting Practices &

  4. Explicit CP violation in the MSSM through gg{yields}H{sub 1{yields}{gamma}{gamma}}

    SciTech Connect (OSTI)

    Hesselbach, S.; Moretti, S.; Munir, S.; Poulose, P.

    2010-10-01

    We prove the strong sensitivity of the gg{yields}H{sub 1{yields}{gamma}{gamma}} cross section at the Large Hadron Collider on the explicitly CP-violating phases of the minimal supersymmetric standard model, where H{sub 1} is the lightest supersymmetric Higgs boson.

  5. First Measurement of sigma(gg -> ttbar)/sigma(ppbar -> ttbar)

    SciTech Connect (OSTI)

    Pashapour Alamdari, Shabnaz; /Toronto U.

    2008-06-01

    The work presented here is the first measurement of the fraction of top quark pair production through gluon-gluon fusion. We use an integrated luminosity of 0.96 {+-} 0.06 fb{sup -1} of p{bar p} collisions at {radical}s of 1.96 TeV collected by the CDF II detector. We select t{bar t} candidates by identifying a high-p{sub T} lepton candidate, a large missing E{sub T} as evidence for a neutrino candidate and at least four high E{sub T} jets, one of which has to be identified as originating from a b quark. The challenge is to discriminate between the two production processes with the identical final state, gg {yields} t{bar t} and q{bar q} {yields} t{bar t}. We take advantage of the fact that compared to a quark, a gluon is more likely to radiate a low momentum gluon and therefore, one expects a larger number of charged particles with low p{sub T} in a process involving more gluons. Given the large uncertainties associated with the modeling of the low p{sub T} charged particle multiplicity, a data-driven technique was employed. Using calibration data samples, we show there exists a clear correlation between the observed average number of low p{sub T} charged particles and the average number of gluons involved in the production process predicted by Monte Carlo calculations. Given the correlation, one can identify low p{sub T} charged particle multiplicity distributions associated with specific average number of gluons. The W + 0 jet sample and dijets sample with leading jet E{sub T} in the range of 80-100 GeV are used to find no-gluon and gluon-rich low p{sub T} charged particle multiplicity distributions, respectively. Using these no-gluon and gluon-rich distributions in a likelihood fit, we find the fraction of gluon-rich events in t{bar t} candidates. This fraction has contributions from the signal and background events. Taking into account these contributions and the gg {yields} t{bar t} and q{bar q} {yields} t{bar t} production channel acceptances, we find {sigma}(gg

  6. Lactobacillus rhamnosus GG-supplemented formula expands butyrate-producing bacterial strains in food allergic infants

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Berni Canani, Roberto; Sangwan, Naseer; Stefka, Andrew T.; Nocerino, Rita; Paparo, Lorella; Aitoro, Rosita; Calignano, Antonio; Khan, Aly A.; Gilbert, Jack A.; Nagler, Cathryn R.

    2015-09-22

    Dietary intervention with extensively hydrolyzed casein formula supplemented with Lactobacillus rhamnosus GG (EHCF+LGG) accelerates tolerance acquisition in infants with cow’s milk allergy (CMA). We examined whether this effect is attributable, at least in part, to an influence on the gut microbiota. Fecal samples from healthy controls (n=20) and from CMA infants (n=19) before and after treatment with EHCF with (n=12) and without (n=7) supplementation with LGG were compared by 16S rRNA-based operational taxonomic unit clustering and oligotyping. Differential feature selection and generalized linear model fitting revealed that the CMA infants have a diverse gut microbial community structure dominated by Lachnospiraceaemore » (20.5±9.7%) and Ruminococcaceae (16.2±9.1%). Blautia, Roseburia and Coprococcus were significantly enriched following treatment with EHCF and LGG, but only one genus, Oscillospira, was significantly different between infants that became tolerant and those that remained allergic. However, most tolerant infants showed a significant increase in fecal butyrate levels, and those taxa that were significantly enriched in these samples, Blautia and Roseburia, exhibited specific strain-level demarcations between tolerant and allergic infants. As a result, our data suggest that EHCF+LGG promotes tolerance in infants with CMA, in part, by influencing the strain-level bacterial community structure of the infant gut.« less

  7. Process gg{yields}h{sub 0}{yields}{gamma}{gamma} in the Lee-Wick standard model

    SciTech Connect (OSTI)

    Krauss, F.; Underwood, T. E. J.; Zwicky, R.

    2008-01-01

    The process gg{yields}h{sub 0}{yields}{gamma}{gamma} is studied in the Lee-Wick extension of the standard model (LWSM) proposed by Grinstein, O'Connell, and Wise. In this model, negative norm partners for each SM field are introduced with the aim to cancel quadratic divergences in the Higgs mass. All sectors of the model relevant to gg{yields}h{sub 0}{yields}{gamma}{gamma} are diagonalized and results are commented on from the perspective of both the Lee-Wick and higher-derivative formalisms. Deviations from the SM rate for gg{yields}h{sub 0} are found to be of the order of 15%-5% for Lee-Wick masses in the range 500-1000 GeV. Effects on the rate for h{sub 0}{yields}{gamma}{gamma} are smaller, of the order of 5%-1% for Lee-Wick masses in the same range. These comparatively small changes may well provide a means of distinguishing the LWSM from other models such as universal extra dimensions where same-spin partners to standard model fields also appear. Corrections to determinations of Cabibbo-Kobayashi-Maskawa (CKM) elements |V{sub t(b,s,d)}| are also considered and are shown to be positive, allowing the possibility of measuring a CKM element larger than unity, a characteristic signature of the ghostlike nature of the Lee-Wick fields.

  8. QCD Corrections to e{sup +}e{sup -}{yields}J/{psi}+gg at B Factories

    SciTech Connect (OSTI)

    Ma Yanqing; Zhang Yujie; Chao Kuangta

    2009-04-24

    In heavy quarkonium production, the measured ratio R{sub cc}={sigma}[J/{psi}+cc+X]/{sigma}[J/{psi}+X] at B factories is much larger than existing theoretical predictions. To clarify this discrepancy, in nonrelativistic QCD we find the next-to-leading-order (NLO) QCD correction to e{sup +}e{sup -}{yields}J/{psi}+gg can enhance the cross section by about 20%. Together with the calculated NLO result for e{sup +}e{sup -}{yields}J/{psi}+cc, we show that the NLO corrections can significantly improve the fit to the ratio R{sub cc}. The effects of leading logarithm resummation near the end point on the J/{psi} momentum distribution and total cross section are also considered. Comparison of the calculated cross section for e{sup +}e{sup -}{yields}J/{psi}+gg with the observed cross section for e{sup +}e{sup -}{yields}J/{psi}+non-(cc) is expected to provide unique information on the issue of color-octet contributions.

  9. Microsoft Word - TP Ackerman Whilte Paper.doc

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

    forecasting. Weather forecasting is an initial condition problem; the success of the forecast is heavily dependent on the quality of the specified initial state of the atmosphere....

  10. Tropical Western Pacific T. Ackerman Pennsylvania Sate University

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

    ... conducted a Pilot Radiation Observation Experiment (PROBE) from November 1992 through February 1993 at a site in Kavieng, New Ireland Province, Papua New Guinea (2034'S, 150048'E). ...

  11. Research Highlight

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

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Life Cycle Journal Reference: Zhao Y, GG Mace, and JM Comstock. 2011. "The occurrence of particle ...

  12. Lactobacillus rhamnosus GG-supplemented formula expands butyrate-producing bacterial strains in food allergic infants

    SciTech Connect (OSTI)

    Berni Canani, Roberto; Sangwan, Naseer; Stefka, Andrew T.; Nocerino, Rita; Paparo, Lorella; Aitoro, Rosita; Calignano, Antonio; Khan, Aly A.; Gilbert, Jack A.; Nagler, Cathryn R.

    2015-09-22

    Dietary intervention with extensively hydrolyzed casein formula supplemented with Lactobacillus rhamnosus GG (EHCF+LGG) accelerates tolerance acquisition in infants with cow’s milk allergy (CMA). We examined whether this effect is attributable, at least in part, to an influence on the gut microbiota. Fecal samples from healthy controls (n=20) and from CMA infants (n=19) before and after treatment with EHCF with (n=12) and without (n=7) supplementation with LGG were compared by 16S rRNA-based operational taxonomic unit clustering and oligotyping. Differential feature selection and generalized linear model fitting revealed that the CMA infants have a diverse gut microbial community structure dominated by Lachnospiraceae (20.5±9.7%) and Ruminococcaceae (16.2±9.1%). Blautia, Roseburia and Coprococcus were significantly enriched following treatment with EHCF and LGG, but only one genus, Oscillospira, was significantly different between infants that became tolerant and those that remained allergic. However, most tolerant infants showed a significant increase in fecal butyrate levels, and those taxa that were significantly enriched in these samples, Blautia and Roseburia, exhibited specific strain-level demarcations between tolerant and allergic infants. As a result, our data suggest that EHCF+LGG promotes tolerance in infants with CMA, in part, by influencing the strain-level bacterial community structure of the infant gut.

  13. Combined Tevatron upper limit on gg -> H -> W^+W^- and constraints on the Higgs boson mass in fourth-generation fermion models

    SciTech Connect (OSTI)

    Aaltonen, T.; Abazov, V.M.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adams, M.; Adams, T.; Adelman, J.; Aguilo, E.; Alexeev, G.D.; Alkhazov, G.

    2010-05-01

    We combine results from searches by the CDF and D0 collaborations for a standard model Higgs boson (H) in the process gg {yields} H {yields} W{sup +}W{sup -} in p{bar p} collisions at the Fermilab Tevatron Collider at {radical}s = 1.o6 TeV. With 4.8 fb{sup -1} of itnegrated luminosity analyzed at CDF and 5.4 fb{sup -1} at D0, the 95% Confidence Level upper limit on {sigma}(gg {yields} H) x {Beta}(H {yields} W{sup +}W{sup -}) is 1.75 pb at m{sub H} = 120 GeV, 0.38 pb at m{sub H} = 165 GeV, and 0.83 pb at m{sub H} = 200 GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, they exclude at the 95% Confidence Level a standard-model-like Higgs boson with a mass between 131 and 204 Gev.

  14. Relativistic correction to e{sup +}e{sup -{yields}}J/{psi}+gg at B factories and constraint on color-octet matrix elements

    SciTech Connect (OSTI)

    He Zhiguo; Fan Ying; Chao Kuangta

    2010-03-01

    We calculate the relativistic correction to J/{psi} production in the color-singlet process e{sup +}e{sup -{yields}}J/{psi}+gg at B factories. We employ the nonrelativistic QCD factorization approach, where the short-distance coefficients are calculated perturbatively and the long-distance matrix elements are extracted from the decays of J/{psi} into e{sup +}e{sup -} and light hadrons. We find that the O(v{sup 2}) relativistic correction can enhance the cross section by a factor of 20-30%, comparable to the enhancement due to the O({alpha}{sub s}) radiative correction obtained earlier. Combining the relativistic correction with the QCD radiative correction, we find that the color-singlet contribution to e{sup +}e{sup -{yields}}J/{psi}+gg can saturate the latest observed cross section {sigma}(e{sup +}e{sup -{yields}}J/{psi}+X{sub non-cc})=0.43{+-}0.09{+-}0.09 pb by Belle, thus leaving little room to the color-octet contributions. This gives a very stringent constraint on the color-octet contribution, and may imply that the values of color-octet matrix elements are much smaller than expected earlier by using the naive velocity scaling rules or extracted from fitting experimental data with the leading-order calculations.

  15. Combined Tevatron upper limit on gg{yields}H{yields}W{sup +}W{sup -} and constraints on the Higgs boson mass in fourth-generation fermion models

    SciTech Connect (OSTI)

    Aaltonen, T.; Mehtala, P.; Orava, R.; Osterberg, K.; Saarikko, H.; Remortel, N. van; Abazov, V. M.; Alexeev, G. D.; Artikov, A.; Budagov, J.; Chokheli, D.; Glagolev, V.; Golovanov, G.; Kharzheev, Y. N.; Malyshev, V. L.; Poukhov, O.; Prokoshin, F.; Semenov, A.; Simonenko, A.; Sisakyan, A.

    2010-07-01

    We combine results from searches by the CDF and D0 collaborations for a standard model Higgs boson (H) in the process gg{yields}H{yields}W{sup +}W{sup -} in pp collisions at the Fermilab Tevatron Collider at {radical}(s)=1.96 TeV. With 4.8 fb{sup -1} of integrated luminosity analyzed at CDF and 5.4 fb{sup -1} at D0, the 95% confidence level upper limit on {sigma}(gg{yields}H)xB(H{yields}W{sup +}W{sup -}) is 1.75 pb at m{sub H}=120 GeV, 0.38 pb at m{sub H}=165 GeV, and 0.83 pb at m{sub H}=200 GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, we exclude at the 95% confidence level a standard-model-like Higgs boson with a mass between 131 and 204 GeV.

  16. Next-to-Leading-Order QCD Corrections to e{sup +}e{sup -}{yields}J/{psi}gg at the B Factories

    SciTech Connect (OSTI)

    Gong Bin; Wang Jianxiong

    2009-04-24

    We calculate the next-to-leading-order (NLO) QCD corrections to e{sup +}e{sup -}{yields}J/{psi}gg via color singlet J/{psi}({sup 3}S{sub 1}) at the B factories. The result shows that the cross section is enhanced to 0.373 pb by a K factor (NLO/LO) of about 1.21. By considering its dependence on the charm quark mass and renormalization scale, the NLO cross section can range from 0.294 to 0.409 pb. Further including the {psi}{sup '} feed-down, {sigma}[e{sup +}e{sup -}{yields}J/{psi}X(non-cc)] is enhanced by another factor of about 1.29 and reach 0.482 pb. In addition, the momentum distributions of J/{psi} production and polarization are presented. Recent measurements from Belle agree well with our prediction for the cross section and momentum distribution. It is expected that this process can serve as a very good channel to clarify the J/{psi} polarization puzzle by performing further experimental measurements.

  17. ARM - Publications: Science Team Meeting Documents

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

    Arctic Stratus Cloud Properties and Radiaitve Forcing Derived From Ground-Based Data Collected at ARM NSA Site and SHEBA Ship Dong, X. and Mace, G.G., University of Utah Twelfth ...

  18. DOE/SC-ARM-TR-099 ARM Cloud Retrieval Ensemble Data Set

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

    99 ARM Cloud Retrieval Ensemble Data Set (ACRED) C Zhao MP Jensen S Xie GG Mace SA Klein ... DOESC-ARM-TR-099 ARM Cloud Retrieval Ensemble Data Set (ACRED) C Zhao, Lawrence Livermore ...

  19. ARM - Publications: Science Team Meeting Documents

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

    Mining the ARM Data Set: A WWW-Staged Prototype Relational Database of ARM Data Mace, G.G. ... The ARM data set has grown into the most extensive description of the atmospheric column ...

  20. ARM - Publications: Science Team Meeting Documents

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

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

  1. Research Highlight

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

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Modeling Journal Reference: Naud, C, A Del Genio, GG Mace, S Benson, EE Clothiaux, and P Kollias. ...

  2. ARM - Events Article

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

    at the ARM Sites Wednesday, December 5, 2:55 pm, M-West 3004 Invited Speakers: GG Mace, S Cooper, DJ Posselt A33Q-07. Resolving Processes that Modulate the Properties of ...

  3. Research Highlight

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

    Area of Research: Cloud DistributionsCharacterizations Working Group(s): Cloud Properties Journal Reference: Wang X, KN Liou, SS Ou, GG Mace, and M Deng. 2009. "Remote sensing of ...

  4. Combined CDF and D0 upper limits on $gg\\to H\\to W^+W^-$ and constraints on the Higgs boson mass in fourth-generation fermion models with up to 8.2 fb$^{-1}$ of data

    SciTech Connect (OSTI)

    Benjamin, Doug; /Tufts U.

    2011-08-01

    We combine results from searches by the CDF and D0 Collaborations for a standard model Higgs boson (H) in the processes gg {yields} H {yields} W{sup +}W{sup -} and gg {yields} H {yields} ZZ in p{bar p} collisions at the Fermilab Tevatron Collider at {radical}s = 1.96 TeV. With 8.2 fb{sup -1} of integrated luminosity analyzed at CDF and 8.1 fb{sup -1} at D0, the 95% C.L. upper limit on {sigma}(gg {yields} H) x {Beta}(H {yields} W{sup +}W{sup -}) is 1.01 pb at m{sub H} = 120 GeV, 0.40 pb at m{sub H} = 165 GeV, and 0.47 pb at m{sub H} = 200 GeV. Assuming the presence of a fourth sequential generation of fermions with large masses, we exclude at the 95% Confidence Level a standard-model-like Higgs boson with a mass between 124 and 286 GeV.

  5. Four-Dimensional Data Assimilation O. B. Toon, A. Ackerman, and...

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

    declines, and the liquid water increases (Twomey 1977, Radke et al. 1989, Albrecht 1989). ... Department of Meteorology, McGill University, Montreal, Canada. Albrecht, B. A. 1989. ...

  6. Section 120

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

    Platt r Platt r e r Platt r e r Platt Session Papers 543 Verification of Cirrus Cloud Parameterizations Using Southern Great Plains Data D. A. Sovchik and T. P. Ackerman Pennsylvania State University University Park, Pennsylvania G. G. Mace University of Utah Salt Lake City, Utah Introduction An evaluation of several diagnostic cirrus cloud parameteriza- tions is presented in this study using data from the Department of Energy's Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP)

  7. Section 45

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

    The Relationship Between Composite Cirrus Morphology and Large-Scale Meteorology Derived from 94-GHz Cloud Radar Data G. G. Mace and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction While it is generally recognized that clouds play an important role in the climate system, many fundamental cloud properties have not been extensively observed. Clouds can be described on multiple spatial and temporal scales. At the largest scales,

  8. X:\ARM_19~1\P185-192.WPD

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

    Figure 1. Schematic diagram of an operational methodology for cloud parameterization testing. The upper portion depicts the data analysis procedure, while the lower portion depicts parameterization forcing and evaluation. A Comparison of Radiometric Fluxes Influenced by Parameterized Cirrus Clouds with Observed Fluxes at the Southern Great Plains (SGP) Cloud and Radiation Testbed (CART) Site G. G. Mace, T. P. Ackerman, and A. T. George Penn State University, Department of Meteorology University

  9. X:\ARM_19~1\P185-192.WPD

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

    Micropulse lidar cloud base frequency. A One-Year Cloud Climatology Using Data from the Southern Great Plains (SGP) Site Micropulse Lidar G. G. Mace and T. P. Ackerman Penn State University, Department of Meteorology University Park, Pennsylvania J. Spinhirne and S. Scott NASA Goddard Space Flight Center Greenbelt, Maryland Data Acquisition and Analysis The micropulse lidar (MPL) has been operational at the Southern Great Plains site of the Atmospheric Radiation Measurement Program for the past

  10. X:\ARM_19~1\P283-315.WPD

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

    Remote Cloud Sensing Intensive Observation Period (RCS-IOP) Millimeter-Wave Radar Calibration and Data Intercomparison S. M. Sekelsky, J. M. Firda, and R. E. McIntosh Microwave Remote Sensing Laboratory University of Massachusetts Amherst, Massachusetts E. E. Clothiaux, G. G. Mace, and T. P. Ackerman The Pennsylvania State University Department of Meteorology University Park, Pennsylvania Introduction Analysis of Cloud Data During April 1994, the University of Massachusetts Figure 1 shows images

  11. X:\ARM_19~1\PGS1-8.WPD

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

    Boundary-Layer Cloud Study Using Southern Great Plains Cloud and Radiation Testbed (CART) Data B. Albrecht, G. Mace, X. Dong, W. Syrett, and T. Ackerman Pennsylvania State University, Department of Meteorology University Park, Pennsylvania Introduction Boundary layer clouds-stratus and fairweather cumulus- are closely coupled to the water and energy budgets of land surfaces. This coupling involves the radiative impact of the clouds on the surface energy budget and the strong dependence of cloud

  12. 1

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

    Cirrus Radiative Properties in the Tropical Western Pacific J. M. Comstock and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington G. G. Mace University of Utah Salt Lake City, Utah Introduction Cirrus clouds in tropical regions are often located high in the cold upper troposphere and have low optical depths. In addition, tropical cirrus often extend in large sheets up to 1000 km horizontally, which may have a large influence on the energy budget of the atmosphere.

  13. Section 68

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

    An Evaluation of Cirrus Parameterizations Using Southern Great Plains Data D. A. Sovchik, G. C. Mace, and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Parameterization of cirrus in large-scale models is a challeng- considerably. A detailed analysis of the resulting distributions ing problem for a number of reasons. Among the most has not yet been carried out, but will be used to identify important of these has been the lack of

  14. Section 7

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

    A One-Year Cloud Climatology Derived from the Micro Pulse Lidar G. G. Mace Department of Meteorology, University of Utah Salt Lake City, Utah E. E. Clothiaux and T. P. Ackerman Department of Meteorology, Pennsylvania State University University Park, Pennsylvania J. D. Spinhirne and V. S. Scott NASA/Goddard Space Flight Center Greenbelt, Maryland Abstract A cloud detection algorithm that attempts to identify all of the significant power returns from the vertical column above the micro pulse

  15. Section 77

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

    Figure 1. Potential temperature, equivalent potential temperature, and saturation equiva- lent potential temperature for a) the decou- pled boundary-layer observed over the ARM SGP site and b) the well-mixed boundary- layer observed over central Pennsylvania. Observational Studies of Continental Stratus-Implications for Modeling B. A. Albrecht University of Miami Miami, Florida G. G. Mace University of Utah Salt Lake City, Utah H. Verlinde and T. P. Ackerman Pennsylvania State University

  16. ARM - Publications: Science Team Meeting Documents

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

    CRYSTAL FACE: An Intensive Field Campaign for the Study of Tropical Cirrus Mather, J.H.(a), Mace, G.G.(b), Ackerman, T.P.(a), Comstock, J.M.(a), Flynn, C.J.(a), Widener, K.B.(a), and Marchand, R.T.(a), Pacific Northwest National Laboratory (a), University of Utah (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting In July of 2002, ARM will take part in CRYSTAL (Cirrus Regional Study of Tropical Anvils and Cirrus Layers), a joint experiment with NASA for the purpose of

  17. Research Highlight

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

    Critical Evaluation of the ICARUS Portion of the ISCCP Simulator Using ARM Data Download a printable PDF Submitter: Mace, G., University of Utah Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Life Cycle Journal Reference: Mace GG, S Houser, S Benson, SA Klein, and QL Min. 2011. "Critical evaluation of the ISCCP simulator using ground-based remote sensing data." Journal of Climate, 24(6), doi:10.1175/2010JCLI3517.1. Figure 1.

  18. Two loop correction to interference in $$gg \\to ZZ$$

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Campbell, John M.; Ellis, R. Keith; Czakon, Michal; Kirchner, Sebastian

    2016-08-01

    Here, we present results for the production of a pair of on-shell Z bosons via gluon-gluon fusion. This process occurs both through the production and decay of the Higgs boson, and through continuum production where the Z boson couples to a loop of massless quarks or to a massive quark. We calculate the interference of the two processes and its contribution to the cross section up to and including order O(αmore » $$_{s}^{3}$$ ). The two-loop contributions to the amplitude are all known analytically, except for the continuum production through loops of top quarks of mass m. The latter contribution is important for the invariant mass of the two Z bosons, (as measured by the mass of their leptonic decay products, m$$_{4l}$$), in a regime where m$$_{4l}$$ ≥ 2m because of the contributions of longitudinal bosons. We examine all the contributions to the virtual amplitude involving top quarks, as expansions about the heavy top quark limit combined with a conformal mapping and Padé approximants. Comparison with the analytic results, where known, allows us to assess the validity of the heavy quark expansion, and it extensions. We give results for the NLO corrections to this interference, including both real and virtual radiation.« less

  19. Lactobacillus rhamnosus GG-supplemented formula expands butyrate...

    Office of Scientific and Technical Information (OSTI)

    provided as a public service. Visit OSTI to utilize additional information resources in energy science and technology. Dietary intervention with extensively hydrolyzed casein...

  20. ARM - Publications: Science Team Meeting Documents

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

    An Integrated Algorithm for Retrieving Non-precipitating Stratus Cloud Microphysical Properties Using Millimeter Radar and Microwave Radiometer Data Dong, X. and Mace, G.G., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting A new algorithm has been developed to retrieve the vertical profiles of cloud microphysical properties using the ground- based measurements of cloud radar, laser ceilometer, and microwave and solar radiometers. A relationship between

  1. ARM - Publications: Science Team Meeting Documents

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

    NSDL Community Development for Learners Utilizing ARM Data Andrew, K. (a), Klaus, C. (b), Mace, G.G. (c), McCollum, T. (d), and Gobble, T. (e), Eastern Illinois University (a), Argonne National Laboratory (b), University of Utah (c), Charleston Middle School (d), Carl Sanburg High School (e) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting As part of the NSF National Science Digital Library (NSDL) project in Science, Mathematics, Engineering, and Technology Education (SMETE)

  2. ARM - Publications: Science Team Meeting Documents

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

    A Summary of Cases Sampled During the 2000 Cloud IOP Sonntag, K. and Mace, G.G., University of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Quantities related to three-dimensional distribution of cloudiness remain difficult to parameterize. Cloud properties are important in assessing the radiative heating profile and advective tendencies of condensate. Currently, the volumetric distribution of clouds can only be approximated through various assumptions. Data

  3. ARM - Publications: Science Team Meeting Documents

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

    Comparison of Boundary Layer Cloud Properties using Surface and GOES Measurements at the ARM SGP Site Dong, X. (a), Minnis, P. (b), Smith, W.L., Jr. (b), and Mace, G.G. (a), University of Utah (a), NASA Langley Research Center (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Boundary layer cloud microphysical and radiative properties derived from GOES data during March 2000 cloud IOP at ARM SGP site are compared with simultaneous surface-based observations. The

  4. ARM - Publications: Science Team Meeting Documents

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

    Terra Validation Opportunities with ARM Data: A Summary of Overpasses and Ground-Based Validation Products Mace, G.G., Benson, S., Vernon, E.N., and Zhang, Y., Department of Meteorology, Univeristy of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The flagship spacecraft of the EOS program, Terra, was launched into polar orbit in December 1999. Terra has been generating science quality data since about February 2000. Instruments on Terra include the mid and high

  5. ARM - Publications: Science Team Meeting Documents

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

    The Bulk Properties of Mid Latitude Cirrus Events: Sensitivity to Large Scale Controlling Factors Vernon, E.N. and Mace, G.G., Department of Meteorology, Unviversity of Utah Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting The extensive cirrus record recored in the ARM data is being used to investigate the sensitivity of certain cirrus properties to the large scale meteorology. Using millimeter cloud radar (MMCR) data from the Southern Great Plains site, a statistical

  6. ARM - Publications: Science Team Meeting Documents

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

    An Integrated Algorithm for Retrieving Low-Level Stratus Cloud Microphysical Properties Using Millimeter Radar and Microwave Radiometer Data Dong, X. and Mace, G.G., University of Utah Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Two methods have been developed for inferring the vertical profiles of cloud microphysics in liquid phase stratocumulus clouds. The first method uses cloud liquid water path derived from microwave radiometer observations and a profile of radar

  7. ARM - Publications: Science Team Meeting Documents

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

    A WWW-Staged Prototype ARM Database Utility Mace, G.G. and Hudach, D., University of Utah Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Counting from when MMCR's were first intalled at the 4 ARM sites, the ARM dataset consists of nearly 10 years of total data collected. This volume of data presents significant opportunies to explore the relationships between various parameters important to characterizing the physical state of the atmospheric column in global models.

  8. ARM - Publications: Science Team Meeting Documents

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

    Relationships Between Cirrus and Large-Scale Meteorology Benson, S., Mace, G.G., and Vernon, E.N., University of Utah Cirrus cloud properties are influenced by the large-scale meteorology in which they form and evolve. Studying the large-scale meteorology that exists during cirrus events, and the relationships between the large-scale meteorology and cirrus cloud properties, will improve our understanding of cirrus clouds. The NCEP/NCAR reanalysis product is used to examine the average

  9. ARM - Publications: Science Team Meeting Documents

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

    A Self-Consistent Hierarchy of Cirrus Cloud Property Retrieval Algorithms Mace, G.G. and Zhang, Y., University of Utah Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The problem of deriving cloud properties from remotely sensed data remains fundamentally important to many problems relevant to ARM. We have been working to derive a suite of cloud property retrieval algorithms that increase logically in complexity. Using an extensive set of aircraft data to constrain the

  10. Research Highlight

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

    Minimal Shortwave Anomalous Absorption Found over ACRF Sites Download a printable PDF Submitter: Dong, X., University of Arizona Minnis, P., NASA - Langley Research Center Area of Research: Radiation Processes Working Group(s): Radiative Processes Journal Reference: Dong, X, BA Wielicki, B Xi, Y Hu, GG Mace, S Benson, F Rose, S Kato, T Charlock, and P Minnis. 2008. "Using observations of deep convective systems to constrain atmospheric column absorption of solar radiation in the optically

  11. Microsoft PowerPoint - Mace_Poster_ARM-ATrain_Comparison [Compatibilit...

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

    occurrence compare ti d i ? over time and in space? over time and in space? l d Cl dS CloudSat Findings: CloudSat CloudSat Findings: CloudSat g 1) Strong similarities are...

  12. POLICY GUIDANCE MEMORANDUM #02 Using Schedule A Hiring Authority...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    ARRA Positions (Expired) Responsible Contacts Jennifer Ackerman Director, Human Capital Policy E-mail jennifer.ackerman@hq.doe.gov Phone (202) 586-3860; More Documents & ...

  13. POLICY GUIDANCE MEMORANDUM #35 Procedures for Compliance with...

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Responsible Contacts Jennifer Ackerman Director, Human Capital Policy E-mail jennifer.ackerman@hq.doe.gov Phone (202) 586-3860; More Documents & Publications Inspection Report: ...

  14. ARM 2000

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

    Tom Ackerman Chief Scientist Tom Ackerman Chief Scientist ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement 2 Outline Outline * Last year's goals * ...

  15. ARM - Publications: Science Team Meeting Documents

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

    Remote Sensing of Three-Dimensional Inhomogeneous Cirrus Clouds: Application to Climate Research Liou, K.N. (a), Ou, S.C. (a), Rolland, P. (a), Gu, Y. (a), Mace, G.G. (b), and Sassen, K. (b), University of California, Los Angeles (a), University of Utah, Salt Lake City (b) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting We have innovated a remote sensing methodology involving the construction of three-dimensional (3D) fields of the ice water content (IWC) and ice crystal

  16. Research Highlight

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

    New Method for Three-Dimensional Imaging of Cirrus Clouds Submitter: Liou, K., University of California, Los Angeles Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Liou, K.N, S.C. Ou, Y. Takano, J. Roskovensky, G.G. Mace, K. Sassen, and M. Poellot, 2002: "Remote sensing of three-dimensional inhomogeneous cirrus clouds using satellite and mm-wave cloud radar data," Geophysical Research Letters 29(9): 1360. Figure 1 ARM Data

  17. SU-GG-T-49: Real Time Dose Verification for Novel Shielded Balloon Brachytherapy

    SciTech Connect (OSTI)

    Govindarajan, Nandakarthik; Nazaryan, Vahagn; Gueye, Paul; Keppel, Cynthia

    2010-06-01

    Purpose: The validation of a novel approach for reducing skindoses to an acceptable level during Accelerated Partial Breast Irradiation (APBI) when the balloon-to-skin distance is inadequate (less than 7 mm) is reported. The study uses a real time dose verification method for a metallic shielded balloon applicator using scintillation fiber technology. Method and Materials: Partial shielding of the radiationdose to the skin using iron or other ferrous powder could enable the extension of APBI to some patients. With small external and pre-determined magnetic fields (

  18. The TWP-ICE CRM Intercomparison Specification and First Results

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

    TWP-ICE CRM Intercomparison Specification and First Results Ann Fridlind (ann.fridlind@nasa.gov), Andrew Ackerman (andrew.ackerman@nasa.gov), Adrian Hill (adrian.hill@metoffice.gov...

  19. Bounding the Higgs width at the LHC using full analytic results for $$gg → e^- e^+ \\mu^- \\mu^+$$

    DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

    Campbell, John M.; Ellis, R. Keith; Williams, Ciaran

    2014-04-09

    We revisit the hadronic production of the four-lepton final state, e– e+ μ– μ+, through the fusion of initial state gluons. This process is mediated by loops of quarks and we provide first full analytic results for helicity amplitudes that account for both the effects of the quark mass in the loop and off-shell vector bosons. The analytic results have been implemented in the Monte Carlo program MCFM and are both fast, and numerically stable in the region of low Z transverse momentum. We use our results to study the interference between Higgs-mediated and continuum production of four-lepton final states,more » which is necessary in order to obtain accurate theoretical predictions outside the Higgs resonance region. We have confirmed and extended a recent analysis of Caola and Melnikov that proposes to use a measurement of the off-shell region to constrain the total width of the Higgs boson. Using a simple cut-and-count method, existing LHC data should bound the width at the level of 25-45 times the Standard Model expectation. We investigate the power of using a matrix element method to construct a kinematic discriminant to sharpen the constraint. Furthermore, in our analysis the bound on the Higgs width is improved by a factor of about 1.6 using a simple cut on the MEM discriminant, compared to an invariant mass cut μ4l > 300 GeV.« less

  20. FY 2009 Annual Report of Joule Software Metric SC GG 3.1/2.5.2, Improve Computational Science Capabilities

    SciTech Connect (OSTI)

    Kothe, Douglas B; Roche, Kenneth J; Kendall, Ricky A

    2010-01-01

    The Joule Software Metric for Computational Effectiveness is established by Public Authorizations PL 95-91, Department of Energy Organization Act, and PL 103-62, Government Performance and Results Act. The U.S. Office of Management and Budget (OMB) oversees the preparation and administration of the President s budget; evaluates the effectiveness of agency programs, policies, and procedures; assesses competing funding demands across agencies; and sets the funding priorities for the federal government. The OMB has the power of audit and exercises this right annually for each federal agency. According to the Government Performance and Results Act of 1993 (GPRA), federal agencies are required to develop three planning and performance documents: 1.Strategic Plan: a broad, 3 year outlook; 2.Annual Performance Plan: a focused, 1 year outlook of annual goals and objectives that is reflected in the annual budget request (What results can the agency deliver as part of its public funding?); and 3.Performance and Accountability Report: an annual report that details the previous fiscal year performance (What results did the agency produce in return for its public funding?). OMB uses its Performance Assessment Rating Tool (PART) to perform evaluations. PART has seven worksheets for seven types of agency functions. The function of Research and Development (R&D) programs is included. R&D programs are assessed on the following criteria: Does the R&D program perform a clear role? Has the program set valid long term and annual goals? Is the program well managed? Is the program achieving the results set forth in its GPRA documents? In Fiscal Year (FY) 2003, the Department of Energy Office of Science (DOE SC-1) worked directly with OMB to come to a consensus on an appropriate set of performance measures consistent with PART requirements. The scientific performance expectations of these requirements reach the scope of work conducted at the DOE national laboratories. The Joule system emerged from this interaction. Joule enables the chief financial officer and senior DOE management to track annual performance on a quarterly basis. Joule scores are reported as success, goal met (green light in PART), mixed results, goal partially met (yellow light in PART), and unsatisfactory, goal not met (red light in PART). Joule links the DOE strategic plan to the underlying base program targets.

  1. Two-Loop QCD Amplitude for gg{yields}h, H in the Minimal Supersymmetric Standard Model

    SciTech Connect (OSTI)

    Anastasiou, Charalampos; Beerli, Stefan; Daleo, Alejandro

    2008-06-20

    We present the two-loop QCD amplitude for the interaction of two gluons and a CP-even Higgs boson in the minimal supersymmetric standard model (MSSM). We apply a novel numerical method for the evaluation of Feynman diagrams with infrared, ultraviolet, and threshold singularities. We discuss subtleties in the ultraviolet renormalization of the amplitude with conventional dimensional regularization, dimensional reduction, and the four dimensional helicity scheme. Finally, we show numerical results for scenarios of supersymmetry breaking with a rather challenging phenomenology in which the Higgs signal in the MSSM is suppressed in comparison to the standard model.

  2. Bounding the Higgs width at the LHC using full analytic results for $gg → e^- e^+ \\mu^- \\mu^+$

    SciTech Connect (OSTI)

    Campbell, John M.; Ellis, R. Keith; Williams, Ciaran

    2014-04-09

    We revisit the hadronic production of the four-lepton final state, e e+ μ μ+, through the fusion of initial state gluons. This process is mediated by loops of quarks and we provide first full analytic results for helicity amplitudes that account for both the effects of the quark mass in the loop and off-shell vector bosons. The analytic results have been implemented in the Monte Carlo program MCFM and are both fast, and numerically stable in the region of low Z transverse momentum. We use our results to study the interference between Higgs-mediated and continuum production of four-lepton final states, which is necessary in order to obtain accurate theoretical predictions outside the Higgs resonance region. We have confirmed and extended a recent analysis of Caola and Melnikov that proposes to use a measurement of the off-shell region to constrain the total width of the Higgs boson. Using a simple cut-and-count method, existing LHC data should bound the width at the level of 25-45 times the Standard Model expectation. We investigate the power of using a matrix element method to construct a kinematic discriminant to sharpen the constraint. Furthermore, in our analysis the bound on the Higgs width is improved by a factor of about 1.6 using a simple cut on the MEM discriminant, compared to an invariant mass cut μ4l > 300 GeV.

  3. Microsoft Word - McFarlane-SA.doc

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

    Liquid Water Cloud Retrievals - A Bayesian Approach S. A. McFarlane and K. F. Evans University of Colorado Boulder, Colorado A. S. Ackerman National Aeronautics and Space ...

  4. Choctaw County, Mississippi: Energy Resources | Open Energy Informatio...

    Open Energy Info (EERE)

    3 Climate Zone Subtype A. Places in Choctaw County, Mississippi Ackerman, Mississippi French Camp, Mississippi Mathiston, Mississippi Weir, Mississippi Retrieved from "http:...

  5. Microsoft Word - luo-y1.doc

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

    1996, Randall 2003). Large-scale forcing data produced by the Atmospheric Radiation Measurement (ARM; Stokes and Schwartz 1994, Ackerman and Stokes 2003) program at the Southern...

  6. Evaluation of Cloud-resolving and Limited Area Model Intercomparison...

    Office of Scientific and Technical Information (OSTI)

    Authors: Varble, Adam ; Zipser, Edward J. ; Fridlind, Ann ; Zhu, Ping ; Ackerman, Andrew ; Chaboureau, Jean-Pierre ; Fan, Jiwen ; Hill, Adrian ; Shipway, Ben ; Williams, ...

  7. Research Highlight

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    Fridlind, and AS Ackerman. 2015. "Properties of a mesoscale convective system in the context of an isentropic analysis." Journal of the Atmospheric Sciences, , doi:10.1175...

  8. ARM - Publications: Science Team Meeting Documents

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    Dong, X., Analytical Service and Materials, Inc. Ackerman, T.P., The Pennsylvania State University; Liljegren, J.C., Ames Laboratory Ninth Atmospheric Radiation Measurement...

  9. Four-Dimensional Data Assimilation S. Kinne and R. Bergstrom

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    Kinne and R. Bergstrom NASA-Ames Research Center Moffett Field. CA 94035-1000 T. Ackerman Pennsylvania State University University Park, PA 16802 Abstract Radiation measurements at ...

  10. Four-Dimensional Data Assimilation D. Westphal, B. Toon, E. Jensen...

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    B. Toon, E. Jensen, S. Kinne, A. Ackerman, R. Bergstrom, and A. Walker National Aeronautics and Space Administration Ames Research Center Moffett Field, CA 94035 Introduction...

  11. ARM - Publications: Science Team Meeting Documents

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    E.E., and Ackerman, T.P., The Pennsylvania State University; Kato, S., National Aeronautics and Space Administration-Langley Research Center Ninth Atmospheric Radiation...

  12. Radiative Effects of Cloud Inhomogeneity and

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    Ackerman et al. 1999), to develop cloud statistics and improve the treatment of subgrid ... and Curry 1989; Liang and Wang 1997). Statistics of Subgrid Cloud Variability We have ...

  13. PowerPoint Presentation

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    Measurement (ARM) Program: Observing the Atmosphere with Ground-Based Remote Sensing The Atmospheric Radiation Measurement (ARM) Program: Observing the Atmosphere with Ground-Based Remote Sensing Tom Ackerman Chief Scientist Tom Ackerman Chief Scientist ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement Pacific Northwest National Laboratory Pacific Northwest National Laboratory The "other" Washington ARM ARM Atmospheric Radiation Measurement Atmospheric

  14. ARM04.pdf

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    HYATT REGENCY ALBUQUERQUE Grand Pavillion Mather Mather A B Mace Mace A B Kollias Kollias C D Li Li C D Albrecht E F Spangenberg E F Widener Widener G H Khaiyer Min G H Doran I J ...

  15. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... Zhang, Minghua (5) Del Genio, Anthony D. (4) Klein, Stephen A. (4) Lin, Wuyin (4) Walker, Gregory K. (4) Wolf, Audrey (4) Ackerman, Thomas P. (3) Golaz, Jean-Christophe (3) ...

  16. UCRL-MI-224010 ARM-06-012 ARM's Support for GCM Improvement:...

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    DOE should invest in the "super-parameterization" modeling approach. Tom Ackerman, Bill Collins, Steve Ghan, Jean-Jacques Morcrette, and Hualu Pan are thanked for their input. 7...

  17. Stratus Cloud Structure from MM-Radar Transects and Satellite...

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    ... Met. Soc., Boston, Massachusetts. Clothiaux, E. E., M. A. Miller, B. A. Albrecht, T. P. Ackerman, J. Verlinde, D. M. Babb, R. M. Peters, and W. J. Syrett, 1995: An evaluation of a ...

  18. Search for: All records | DOE PAGES

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    Endo, Satoshi (3) Lin, Wuyin (3) Liu, Yangang (3) Toto, Tami (3) Vogelmann, Andrew M. (3) ... Lin, Wuyin ; Vogelmann, Andrew M. ; Toto, Tami ; Ackerman, Andrew S. ; McFarquhar, Greg ...

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    Endo, Satoshi (6) Li, Zhijin (6) Toto, Tami (6) Zhang, Minghua (5) Feng, Sha (4) Ackerman, ... ; Feng, Sha ; Liu, Yangang ; Lin, Wuyin ; Zhang, Minghua ; Toto, Tami ; Endo, Satoshi We ...

  20. Research Highlight

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    Cloud Phase Determination Using Ground-Based AERI Observations at SHEBA Submitter: Turner, ... Working Group(s): Cloud Properties Journal Reference: Turner, D.D., S.A. Ackerman, B.A. ...

  1. ARM - 2003 Science Team Meeting Pictures

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    and Janet Inrieri discuss Dave and Tom's poster. ARM Chief Scientist Tom Ackerman, Dave Turner, and Janet Inrieri discuss Dave and Tom's poster. K.N. Liou and Andy Lacis discuss...

  2. ARM - Publications: Science Team Meeting Documents

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    Shortwave Cloud Radiative Forcing Using Ground-Based Broadband Radiometric Time-Series Cole, J.N.S.(a), Long, C.N.(b), and Ackerman, T.P.(b), The Pennsylvania State University...

  3. boehm-99.PDF

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    On the Maintenance of High Tropical Cirrus M. T. Boehm, J. Verlinde, and T. P. Ackerman ... The purpose of this study is the exploration of radiative destabilization as a maintenance ...

  4. ARM - Field Campaign - Remote Cloud Sensing (RCS) Field Evaluation

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    IOP" Other Contacts Robert KropfliTom AckermanKenneth SassenAndrew HeymsfieldJohn Goldsmith, Lead Scientists Connor Flynn, DSIT Contact Campaign Data Sets IOP Participant Data...

  5. Microsoft Word - Haeffelin-MP.doc

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    ... J. Geophys. Res., 102, 25,881-25,898. Kato S., T. P. Ackerman, E. G. Dutton, N. Laulainen, and N. Larson, 1999: A comparison of modeled and measured surface shortwave irradiance ...

  6. ARM - Publications: Science Team Meeting Documents

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    Hollars, S.(a), Comstock, J.M.(b), Fu, Q.(a), and Ackerman, T.P. (a), University of ... anvil clouds will remain constant during climate change (Hartmann and Larson 2002). ...

  7. Analyzing Surface Solar Flux Data in Oregon for Changes Due to...

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    solar irradiance could be caused by decreasing aerosol concentrations. 4. Clear-sky periods determined with Long and Ackerman SW Flux Analysis 1,2 . Burns, OR -- Irradiance Data ...

  8. Parameterizations of Cloud Microphysics and Indirect Aerosol...

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    A recent report published by the National Academy of Science states "The greatest ... 1977 and the "semi-direct" effect on cloud coverage e.g., Ackerman et al., 2000. ...

  9. Progress on an ARM/GCSS/SPARC TWP-ICE Monsoon Case Study

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    Progress on an ARMGCSSSPARC TWP-ICE Monsoon Case Study Ann Fridlind and Andrew Ackerman ann.fridlind@nasa.gov * www.giss.nasa.govfridlind Introduction Source: Lori Chappel, ...

  10. poster.dvi

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    POSTER 8C * ANVIL PROPERTIES OF MONSOONAL AND BREAK DEEP CONVECTION DURING TWP-ICE Ann Fridlind and Andrew Ackerman * ann.fridlind@nasa.gov * NASA Goddard Institute for Space ...

  11. DOE/SC-ARM-XXXX DOE/SC-ARM-0706

    Office of Scientific and Technical Information (OSTI)

    ... Jensen,.EJ,.AS.Ackerman,.and.JA.Smith..2007.."Can.overshooting.convection.dehydr... Feltz,.W,.D.Turner,.H.Howell,.W.Smith,.R.Knuteson,.H.Woolf,.J.Comstock,.C.Sivaraman,.R.Mah...

  12. ARM - Facility News Article

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    At the Monday evening reception of the 2005 ARM Science Team Meeting, Dr. Ferrell presented Dr. Ackerman with a plaque-signed by Dr. Raymond L. Orbach, Director of DOE's Office of ...

  13. fu(1)-99.PDF

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    ... Liou, K. N., Q. Fu, and T. P. Ackerman, 1988: A simple formulation of the delta-four-stream approximation for radiative transfer parameterizations. J. Atmos. Sci., 45, 1940-1947. ...

  14. Posters Atmospheric Emitted Radiance Interferometer Data Analysis...

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    Analysis Methods R. O. Knuteson, W. L. Smith, S. A. Ackerman, H. E. Revercomb, H. ... project under the direction of William L. Smith of the University of Wisconsin-Madison. ...

  15. Section 26

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    W. L. Smith, S. A. Ackerman, D. H. DeSlover, W. F. Feltz, S. Ho, R. O. Knuteson and H. E. ... Feltz, W. F., R. O. Knuteson, H. E. Revercomb, and W. L. Smith, 1997: Atmospheric emitted ...

  16. ARM - ARM Science Team Meetings

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    govScienceARM Science Team Meetings Science Team Meetings 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 ARM Science Team Meetings Poster sessions were key components of the ARM Science Team Meetings through the years. Former ARM Chief Scientist Tom Ackerman (center, dark pants) spent many hours participating in these sessions. Poster sessions were key components of the ARM Science Team Meetings through the years. Former ARM Chief Scientist Tom Ackerman

  17. Research Highlight

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    Shortwave Absorption in Tropical Clouds Download a printable PDF Submitter: McFarlane, S. A., U.S. Department of Energy Mather, J. H., Pacific Northwest National Laboratory Ackerman, T. P., University of Washington Liu, Z., University of Washington Area of Research: Cloud Distributions/Characterizations Working Group(s): Radiative Processes Journal Reference: McFarlane, SA, JH Mather, TP Ackerman, and Z Liu. 2008. "Effect of clouds on the vertical distribution of SW absorption in the

  18. Research Highlight

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    Structure of Cirrus Properties and Its Coupling with the State of the Large-Scale Atmosphere Download a printable PDF Submitter: Ivanova, K., Pennsylvania State University Ackerman, T. P., University of Washington Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: Ivanova K and TP Ackerman. 2009. "Tracking nucleation-growth-sublimation in cirrus clouds using ARM millimeter wavelength radar observations." Journal of

  19. Research Highlight

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    Understanding Ice Formation in Arctic Mixed-Phase Boundary-Layer Clouds During ISDAC Download a printable PDF Submitter: Ackerman, A., NASA - Goddard Institute for Space Studies Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: Avramov A, AS Ackerman, AM Fridlind, B van Diedenhoven, G Botta, K Aydin, J Verlinde, KV Alexei, W Strapp, GM McFarquhar, R

  20. Research Highlight

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    Tropical Rain Clouds Still a Challenge to Cloud-Resolving Models Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies Ackerman, A., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Fridlind AM, AS Ackerman, J Chaboureau, J Fan, WW Grabowski, AA Hill, TR Jones, MM Khaiyer, G Liu, P Minnis, H Morrison, L Nguyen,

  1. Ground-Based Radar

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    Measurement (ARM) Program A Laboratory for the Study of Clouds and Atmospheric Radiation The Atmospheric Radiation Measurement (ARM) Program A Laboratory for the Study of Clouds and Atmospheric Radiation Tom Ackerman Chief Scientist Tom Ackerman Chief Scientist ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement Why Study Clouds and Radiation? Why Study Clouds and Radiation? * Clouds control the radiation balance of the planet - top of atmosphere (TOA) and surface - Solar

  2. Atmospheric Radiation Measurement Program

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

    3 ARM 2003 Tom Ackerman Chief Scientist Tom Ackerman Chief Scientist ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement WARNING! WARNING! Today is April 1 But that has NO bearing on this message Today is April 1 But that has NO bearing on this message ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation Measurement Two Topics Two Topics * Status of ARM (quick overview) * Science plan - ARM in the next 5 years * Status of ARM (quick overview) * Science plan -

  3. Microsoft PowerPoint - ARM2008_norfolk.ppt

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

    Heating Rates and Related Cloud Properties from CloudSat and ARM Observations at Manus Island Zheng Zheng Liu, Roger Liu, Roger Marchand Marchand , and Thomas Ackerman , and Thomas Ackerman University of Washington Sally McFarlane Sally McFarlane Pacific Northwest National Laboratory 2 Motivation * Radiative heating is important * Cloud vertical differential heating affects local convective dynamics * Horizontal differential heating helps to maintain large scale tropical dynamics * Challenge and

  4. Controlling Low-Rate Signal Path Microdischarge for an Ultra...

    Office of Scientific and Technical Information (OSTI)

    Authors: Mace, Emily K. ; Aalseth, Craig E. ; Bonicalzi, Ricco ; Day, Anthony R. ; Hoppe, Eric W. ; Keillor, Martin E. ; Myers, Allan W. ; Overman, Cory T. ; Seifert, Allen ...

  5. Shielding concepts for low-background proportional counter arrays...

    Office of Scientific and Technical Information (OSTI)

    Authors: Aalseth, Craig E. ; Humble, Paul H. ; Mace, Emily K. ; Orrell, John L. ; Seifert, Allen ; Williams, Richard M. Publication Date: 2016-02-01 OSTI Identifier: 1255357 Report ...

  6. The Design, Construction, and Initial Characterization of an...

    Office of Scientific and Technical Information (OSTI)

    Authors: Seifert, Allen ; Aalseth, Craig E. ; Day, Anthony R. ; Fuller, Erin S. ; Hoppe, Eric W. ; Keillor, Martin E. ; Mace, Emily K. ; Overman, Cory T. ; Warren, Glen A. ...

  7. 39Ar/Ar measurements using ultra-low background proportional...

    Office of Scientific and Technical Information (OSTI)

    Authors: Hall, Jeter C. ; Aalseth, Craig E. ; Bonicalzi, Ricco ; Brandenberger, Jill M. ; Day, Anthony R. ; Humble, Paul H. ; Mace, Emily K. ; Panisko, Mark E. ; Seifert, Allen ...

  8. First results of a simultaneous measurement of tritium and 14C...

    Office of Scientific and Technical Information (OSTI)

    Authors: Mace, Emily K. ; Aalseth, Craig E. ; Day, Anthony R. ; Hoppe, Eric W. ; Keillor, Martin E. ; Moran, James J. ; Panisko, Mark E. ; Seifert, Allen ; Tatishvili, Gocha ; ...

  9. Tax Credits, Rebates & Savings | Department of Energy

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

    Development (MACED) offers loans to small and mid-sized businesses, non-profits, schools and municipalities to improve energy efficiency through its... Eligibility:...

  10. Tax Credits, Rebates & Savings | Department of Energy

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    Mountain Association for Community Economic Development- Energy Efficient Enterprise Loan Program The Mountain Association for Community Economic Development (MACED) offers loans...

  11. Slide 1

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    ... HVPS 0.2-5 cm PSD SPL Extinctiometer Extinction SPL Nevzorov Total water mass SPL Rosemont icing probe SPL Science DeliverablesInterests. Mace: * Science Interests: Developing ...

  12. MS_07_Number_14.pdf

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    Mergedsounding VAP: Recent Enhancements David Troyan 1 , Michael Jensen 1 , David Turner 2 , Mark Miller 1 , Jennifer Delamere 3 , Eli Mlawer 3 , Gerald Mace 4 Author Affiliations ...

  13. ARM - Publications: Science Team Meeting Documents: Evaluation...

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    from the Ground-based Remote Sensing at SGP Kim, Byung-Gon Princeton University Klein, Stephen Lawrence Livermore National Laboratory Mace, Gerald University of Utah Benson, Sally...

  14. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Energy Efficient Enterprise Loan Program The Mountain Association for Community Economic Development (MACED) offers loans to small and mid-sized businesses, non-profits, schools...

  15. Mountain Association for Community Economic Development- Solar Water Heater Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Kentucky Solar Partnership (KSP) and the Mountain Association for Community Economic Development (MACED) partner to offer low interest loans for the installation of solar water heaters. Loans...

  16. ARM - Publications: Science Team Meeting Documents: The Merged...

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    The Merged-Sounding VAP: Current Status and Future Direction Troyan, David Brookhaven National Laboratory Miller, Mark Brookhaven National Laboratory Mace, Gerald University of ...

  17. Slide 1

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    System Strategy and Implementation: Custom Project Policies Matt Tidwell and Allie Mace March 25, 2014 Agenda Background and process for overhauling the custom project policies...

  18. Tax Credits, Rebates & Savings | Department of Energy

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    (MACED) offers loans to small and mid-sized businesses, non-profits, schools and municipalities to improve energy efficiency through its... Eligibility: Commercial, Industrial,...

  19. Tax Credits, Rebates & Savings | Department of Energy

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

    (MACED) offers loans to small and mid-sized businesses, non-profits, schools and municipalities to improve energy efficiency through its... Eligibility: Commercial,...

  20. Tax Credits, Rebates & Savings | Department of Energy

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

    in Eastern Kentucky (Big Sandy RECC, Fleming-Mason RECC, Grayson RECC, and Jackson Energy) work with MACED to provide energy retrofits as part of utility service......

  1. Mountain Association for Community Economic Development - How...

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

    in Eastern Kentucky (Big Sandy RECC, Fleming-Mason RECC, Grayson RECC, and Jackson Energy) work with MACED to provide energy retrofits as part of utility service under...

  2. Tax Credits, Rebates & Savings | Department of Energy

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

    Financing Energy Efficiency Program Four rural utility cooperatives in Eastern Kentucky (Big Sandy RECC, Fleming-Mason RECC, Grayson RECC, and Jackson Energy) work with MACED to...

  3. ARM - Evaluation Product - CMWG Data - SCM-Forcing Data, Cloud...

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

    data. Cloud microphysical properties derived from Mace's data of atmospheric thermodynamics, cloud properties, radiative fluxes and radiative heating rates are regridded to a...

  4. Microsoft Word - huang.doc

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    Hampton, Virginia P. Minnis and B. Lin National Aeronatic Space Administration Langley Research Center Hampton, Viriginia R. F. Arduini SAIC Hampton, Virginia G. G. Mace Department ...

  5. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... (NASA) Global Precipitation Measurement validation campaign. The CSI was added to the Citation instrument suite to support the involvement of Jay Mace through the NASA ...

  6. Precipitation and Hydrology Experiment Counter-Flow Spectrometer...

    Office of Scientific and Technical Information (OSTI)

    (NASA) Global Precipitation Measurement validation campaign. The CSI was added to the Citation instrument suite to support the involvement of Jay Mace through the NASA ...

  7. 1

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    G. Mace (personal communication, 1999) has provided statistics for the time period from ... As MODIS data are now becoming available, these methods, and the resulting Earth Observing ...

  8. Microsoft Word - luo-y2.doc

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    ... Mace, and K.-M. Xu, 2003: Cirrus cloud statistics from a cloud- resolving model ... Earth's Radiant Energy System (CERES): An Earth Observing System Experiment. Bull. Amer. ...

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    Office of Scientific and Technical Information (OSTI)

    ... NM (United States) International Soil Carbon Network ... NE-75, USDOE Office of Space and Defense Power Systems ... capturing the long-term trend at the Mace Head station. ...

  10. Microsoft PowerPoint - 6_Zhao_ice crystals.ppt

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

    Assumption in Cirrus: Comparison of retrieval results with in situ measurements Yang Zhao, Jay Mace Contributions from Min Deng, Jennifer Comstock Motivation * Particle...

  11. User Group 2010 Business Meeting

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    ... Suggestions for workshopssymposia gg p y p Suggestions for instruments... Workshop suggestions are a little more diverse - no recurring themes and all p gg g seem ...

  12. Research Highlight

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    K-Distribution Method for a SW Radiative Transfer Model Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Kato, S., Ackerman, T.P., Mather, J.H., and Clothiaux, E.E., 1999: "The K-distribution Method and Correlated-k Approximation for a Shortwave Radiative Transfer Model," Journal of Quantitative Spectroscopy & Radiative Transfer, 62(1):109-121.

  13. Microsoft PowerPoint - 03_McFarlane_AWG.ppt [Compatibility Mode]

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

    Forcing of Saharan D t A l t Ni Ni Dust Aerosol at Niamey, Niger S. McFarlane, E. Kassianov, C. S. McFarlane, E. Kassianov, C. Flynn, D. Turner, T. Ackerman Flynn, D. Turner, T. Ackerman y y With contributions from J. Mather and J. Barnard With contributions from J. Mather and J. Barnard March 26, 2007 Aerosol Working Group AMF Deployment in Niamey Vertical distribution of radiative heating within atmosphere an important driver of atmospheric circulations ARM Mobile Facility (AMF) deployment in

  14. 1

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    Variability Across the ARM SGP Area by Temporal and Spatial Scale C. N. Long and T. P. Ackerman Pacific Northwest National Laboratory J. E. Christy Columbia University New York, New York Introduction The Surface Cloud Grid (SfcCldGrid) value-added product (VAP) uses the output of the Shortwave Flux Analysis VAP (Long and Ackerman 2000, Long et al. 1999, Long 2001) at 15-minute resolution for each of the 21 surface radiometer sites of the Atmospheric Radiation Measurement (ARM) Southern Great

  15. Microsoft Word - view (3)

    Office of Scientific and Technical Information (OSTI)

    ... J. Roy. Meteor. Soc., 135, 979 - 1002. Kollias, P., E.E. Clothiaux, T.P. Ackerman, B.A. Albrecht, K.B. Widener, K.P. Moran, E.P. Luke, K.L. Johnson, N. Bharadwaj, J.B. Mead, M.A. ...

  16. Mountain Association for Community Economic Development- How$martKY On-Bill Financing Energy Efficiency Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    Four rural utility cooperatives in Eastern Kentucky (Big Sandy RECC, Fleming-Mason RECC, Grayson RECC, and Jackson Energy) work with MACED to provide energy retrofits as part of utility service...

  17. Mountain Association for Community Economic Development- Energy Efficient Enterprise Loan Program

    Office of Energy Efficiency and Renewable Energy (EERE)

    The Mountain Association for Community Economic Development (MACED) offers loans to small and mid-sized businesses, non-profits, schools and municipalities to improve energy efficiency through its...

  18. Digital Pulse-Shape Discrimination Applied to an Ultra-Low-Background...

    Office of Scientific and Technical Information (OSTI)

    E. ; Mace, Emily K. ; Myers, A. W. ; Overman, Cory T. ; Panisko, Mark E. ; Seifert, Allen ; Warren, Glen A. ; Williams, Richard M. Publication Date: 2013-05-01 OSTI Identifier: ...

  19. ARM - Publications: Science Team Meeting Documents

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

    Lagrangian Evolution of Cirrus Clouds Over the ARMCART Sites Soden, B.J.(a) and Mace, G.G.(b), NOAAGFDL (a), University of Utah (b) Thirteenth Atmospheric Radiation Measurement...

  20. ARM - Publications: Science Team Meeting Documents

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

    The March 2000 Cloud Intensive Observing Period; The Evolution of the Synoptic-Scale Atmosphere and the Associated Cloud Radiative Forcing Mace, G.G.(a), Sonntag, K.L.(b), Kato,...

  1. ARM - Publications: Science Team Meeting Documents

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

    A Comparison of the Characteristics of Cirrus from Doppler Radar Measurements at the ARM Sites and the CRYSTAL Field Experiment Laribee-Dowd, K. (a), Mace, G. G. (a), and Marchand,...

  2. Microsoft Word - BPA-2012-01416-FResponse.doc

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

    Sent: Thursday, September 09, 2010 3:46 PM To: 'David Streetman'; Peveler, Mace'; 'Gerald Turner Cc: Cupp,Todd A (BPA) - TELM-TPP-3; Dorman,John C - TELS-TPP-3; Flansburg,Jeffrey T...

  3. Elliot Mainzer - A

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    - TC Aircraft Services Tina Ko, ACTING - TG Transmission Internal Operations E N E R G Y E F F I C I E N C Y Richard Gnec - PE Vice President Allison Mace, ACTING - PEH...

  4. ARM ARM Atmospheric Radiation Measurement Atmospheric Radiation...

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    * Dave Turner and the rest of the ARM science team * Ric Cederwall * Xiquan Dong * Chuck Long * Jay Mace * Mark Miller * Robin Perez * Dave Turner and the rest of the ARM science ...

  5. Energy Conservation Agreement

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    about the energy efficiency federal sector or to ask a question, please contact Allie Robbins Mace, Federal Sector Programs Lead at arrobbins@bpa.gov, or contact your Energy...

  6. ARM - Publications: Science Team Meeting Documents

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    Retrieval (MICROBASE): Status of SGP Version 1.2 and Prototype TWP Version Miller, M.A.(a), Johnson, K.L.(a), Jensen, M.P.(b), Mace, G.G.(c), Dong, X.(d), and...

  7. MS_08_15.pdf

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    Jim Mather and Sally McFarlane, PNNL Eli Mlawer and Jennifer Delamere, AER, Inc. Mark Miller, Rutger University Dave Turner, University of Wisconsin Jay Mace, University of Utah...

  8. ARM - Publications: Science Team Meeting Documents

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

    The MERGEDSOUNDING VAP: A Status Report and Description Miller, M.A.(a), Troyan, D.T.(a), and Mace, G.G.(b), Brookhaven National Laboratory (a), University of Utah (b) The...

  9. ARM - Publications: Science Team Meeting Documents

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

    Association of the Cirrus Properties Over the Western Tropical Pacific with Tropical Deep Convection Deng, M.(a), Mace, G.G.(a), and Soden, B.J.(b), Univesity of Utah (a),...

  10. ARM - Publications: Science Team Meeting Documents

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

    of Cirrus over the Western Tropical Pacific as a Function of Their Assocaition with Deep Convective Outflows Deng, M.(a), Mace, G.G.(a), and Soden, B.J.(b), University of Utah...

  11. 1

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

    for Partially Cloud-Filled Pixels L. Nguyen, P. Minnis, D. V. Young, and W. L. Smith Jr. ... Meteorol., 39, 645-665. Dong, X., P. Minnis, G. G. Mace, W. L. Smith Jr, M. Poellot, and ...

  12. Figure2b.eps

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

    ... except the bare Coulomb interaction is replaced by the screened Coulomb interac- tion: W GG ' (q ; ) -1 GG ' (q ; )v(q + G ' ) where v is the bare Coulomb interaction. ...

  13. Hmelo, Bin Hu, Alamgir Karim, Martyn McLachlan, and Ron Jones...

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

    ... Interactions with "nontraditional" users Interactions with "nontraditional" users Next-generation capabilities Suggestions for workshopssymposia gg p y p ...

  14. ARM - Publications: Science Team Meeting Documents

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

    A Comparison of Surface- and Satellite-Derived Cloud Fractions for the ARM SGP Long, C. N., and Ackerman, T. P., The Pennsylvania State University; Minnis, P., and Smith, W. L., National Aeronautics Space Administration-Langley Research Center Ninth Atmospheric Radiation Measurement (ARM) Science Team Meeting Determinations of cloud fractions are essential for radiative energy balance studies. Only satellites afford the global coverage needed to extend these studies to global climate research.

  15. ARM - Publications: Science Team Meeting Documents

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

    Characterizing the Quality of Microwave Radiometer Measurements and Retrievals Using Time Series Analyses Ivanova, K. (a), Clothiaux, E.E. (a), Shirer, H.N. (a), Ackerman, T.P. (b), Liljegren, J.C. (c), and Ausloos, M. (d), The Pennsylvania State University (a), Pacific Northwest National Laboratory (b), Argonne National Laboratiry (c), University of Liege, Liege, Belgium (d) Eleventh Atmospheric Radiation Measurement (ARM) Science Team Meeting Time series of microwave radiometer brightness

  16. ARM - Publications: Science Team Meeting Documents

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

    The Role of Cloud Scale Resolution on Radiative Properties of Oceanic Low-Level Clouds Kassianov, E.I.(a), Ackerman, T.P.(a), and Kollias P.(b), Pacific Northwest National Laboratory (a), University of Miami (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Millimeter radars have been commonly used to examine the spatial/temporal evolution of clouds. To asses the impact of the cloud scale resolution on the solar radiative transfer, two sets of radiative experiments were

  17. ARM - Publications: Science Team Meeting Documents

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

    An Assessment of MWR Retrievals of Liquid Water Path Using Clear-sky Data Marchand, R.T. and Ackerman, T.P., Pacific Northwest National Laboratory Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The ARM radiometers make measurements at two frequencies. These two measurements are used to infer two quantities, the total column vapor and liquid water. Both microwave emission frequencies respond to both the liquid and vapor, but one channel is more sensitive to vapor (23.8 GHz)

  18. ARM - Publications: Science Team Meeting Documents

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

    Lidar Remote Sensing of Cirrus Clouds at the Southern Great Plains Site: Comparisons of Extinction and Backscatter Coefficients Derived Using Raman and Backscatter Lidar Technique Comstock, J.M.(a), Fu, Q.(b), Turner, D.D.(c), and Ackerman, T.P.(a), Pacific Northwest National Laboratory (a), Department of Atmospheric Sciences, University of Washington (b), University of Wisconsin/Pacific Northwest National Laboratory(c) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting

  19. ARM - Publications: Science Team Meeting Documents

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

    Relative Importance of Size Distribution and Liquid Water Path to Solar Radiation in the Presence of Continental Stratus Sengupta, M.(a), Ackerman, T.P.(a), and Clothiaux, E.E.(b), Pacific Northwest National Laboratory (a), The Pennsylavania State University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Calculation of downwelling broadband solar flux at the surface in the presence of a boundary layer stratiform cloud requires information about the size distribution of

  20. ARM - Publications: Science Team Meeting Documents

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

    Climatology of Stratus Clouds at the SGP: A Radiation Based Study Sengupta, M.(a), Ackerman, T.P.(a), and Clothiaux, E.E.(b), Pacific Northwest National Laboratory (a), The Pennsylvania State University (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting The Atmospheric Radiation Measurement (ARM) program is a source of continuous data that can be used for various short-term climatological studies. Using multiple datasets from ARM for the Southern Great Plains (SGP) Central

  1. ARM - Publications: Science Team Meeting Documents

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

    ERBE OLR and Cloud Type by Split Window Inoue, T.(a) and Ackerman, S.A.(b), Meteorological Research Institute (a), University of Wisconsin (b) Twelfth Atmospheric Radiation Measurement (ARM) Science Team Meeting Using collocated ERBE and split window/AVHRR on board NOAA-9, we studied the relationship between cloud type and OLR. NOAA operational OLR estimation is based on flux equivalent temperature defined by the narrow band TBB. We found the relationship between ERBE OLR and brightness

  2. ARM - Publications: Science Team Meeting Documents

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

    Comparison of Observed and Modelled Liquid Water Path for Stratus and Stratocumulus Clouds at the SGP Sengupta,M.(a), Ackerman,T.P.(a), and Clothiaux,E.E.(b), Pacific Northwest National Laboratory (a), The Pennsylvania State University (b) Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Accurate representation of observations in models is a integral part of improving model accuracy. With the availability of long-term data sets from ARM it is possible to statistical

  3. ARM - Publications: Science Team Meeting Documents

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

    Direct Aerosol Forcing Calculated at the ARM Southern Great Plains Site Ackerman, T.P., Flynn, D.M., and Long, C.N., Pacific Northwest National Laboratory Thirteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting The continuous measurements of direct and diffuse solar radiation, water vapor column amount, and aerosol optical depth provided at the ARM SGP site permit us to calculate directly the actual magnitude of the direct aerosol forcing. Our methodology employs the clear sky

  4. ARM - Publications: Science Team Meeting Documents

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

    Evidence of High Ice Supersaturation in Cirrus Clouds Using ARM Raman Lidar Measurements Comstock, J.M., Ackerman, T.P., and Turner, D.D., Pacific Northwest National Laboratory Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Water vapor amounts in the upper troposphere are crucial to understanding the radiative feedback of cirrus clouds on the Earth’s climate. We use a unique, year-long dataset of water vapor mixing ratio inferred from ground-based Raman lidar

  5. ARM - Publications: Science Team Meeting Documents

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

    Factors Controlling the Formation and Evolution of Subtropical Cumulonimbus Anvils During CRYSTAL-FACE Fridlind, A.M., Ackerman, A.S., and Jensen, E.J., NASA Ames Research Center Fourteenth Atmospheric Radiation Measurement (ARM) Science Team Meeting Cumulonimbus systems have been hypothesized to play an important role in global climate sensitivity and their impact on moisture levels in the tropical tropopause layer may also modulate stratospheric water vapor concentrations. But the properties

  6. Section 3

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    A Comparison of Observed Clear-Sky Surface Irradiance with Theoretical Computations S. Kato, T. P. Ackerman, E. E. Clothiaux and J. H. Mather Department of Meteorology, Pennsylvania State University University Park, Pennsylvania Introduction The accuracy to which clear sky shortwave fluxes can be com- puted is not well known. We performed a detailed compari- son between the measured and modeled downward shortwave irradiances at the surface, including the total, direct beam, and diffuse field

  7. Section 30

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    Computation, SIROS, or, WL) - BSRN, Session Papers 129 A Comparison Between Clear Sky Shortwave Flux Calculations and Observations During ARESE S. Kato, T.P. Ackerman, C.N. Long, E.E. Clothiaux, and J.H. Mather Department of Meteorology, Pennsylvania State University University Park, Pennsylvania Introduction The accuracy to which clear sky shortwave fluxes can be computed is not well known. Measurements of the down- welling short wave flux on clear days as well as measurements of the

  8. Section 41

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    9 Figure 1. WSI cloud fraction for algorithm identified clear sky from April 1994 IOP. Detection of Clear Skies Using Total and Diffuse Shortwave Irradiance: Calculations of Shortwave Cloud Forcing and Clear Sky Diffuse Ratio C.N. Long and T.P. Ackerman Department of Meteorology Pennsylvania State University University Park, Pennsylvania The effect of clouds on the shortwave (SW) irradiance near the surface is of interest for surface radiative energy budget studies (Long et al. 1994) and

  9. Section 42

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    A Rotating Shadow Arm for Broadband Hemispheric Radiometers: Instrument Design and Concept Verification Using Atmospheric Radiation Measurement Southern Great Plains Radiometer Measurements C.N. Long, C.F. Pavloski, and T.P. Ackerman Department of Meteorology Pennsylvania State University University Park, Pennsylvania Measurement of the components of downwelling broadband The total and diffuse irradiance measurements are output shortwave (SW) irradiance at the surface can be difficult to every

  10. Section 46

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    Effects of Water Vapor Continuum Absorption on Tropical Atmosphere Destabilization J.H. Mather, T.P. Ackerman, and G.S. Young Department of Meteorology, The Pennsylvania State University University Park, Pennsylvania Introduction The stability of the sea surface temperature (SST) in the tropi- cal western pacific has been an issue of considerable interest. Various mechanisms have been proposed to explain this stability including the egulation of solar radiation by cirrus clouds (Ramanathan and

  11. Section 50

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    Data from the First Tropical Western Pacific Atmospheric Radiation and Cloud Station J. H. Mather and T. P. Ackerman Pennsylvania State University University Park, Pennsylvania W. E. Clements and F. J. Barnes Los Alamos National Laboratory Los Alamos, New Mexico M. D. Ivey Sandia National Laboratories Albuquerque, New Mexico L. D. Hatfield Pacific Northwest National Laboratory Richland, Washington R. M. Reynolds Brookhaven National Laboratory Upton, New York Introduction The first Atmospheric

  12. EPA Redesigns Conversion Certification Policies

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    EPA Redesigns Conversion Certification Policies At a recent meeting held in Washington, DC, officials from the U.S. Environmental Protection Agency (EPA) opened dialogue about proposed changes to its emission certification policies that affect alternative fuel vehicles (AFVs). "We are trying to accommo- date the Energy Policy Act (EPAct) and Executive Order requirements while trying to change enforce- ment policies and guidance with respect to conversions," said Rich Ackerman of EPA's

  13. Research Highlight

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

    Integrated Water Vapor and Cloud Liquid Water at MCTEX Submitter: Liljegren, J. C., Argonne National Laboratory Area of Research: Atmospheric Thermodynamics and Vertical Structures Working Group(s): Cloud Properties Journal Reference: N/A Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Integrated water vapor and cloud liquid water measurements were obtained during the Maritime Continent Thunderstorm Experiment (MCTEX) by Eugene Clothiaux and Tom Ackerman of Penn State University using an ARM

  14. Research Highlight

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

    Evaluate the Diurnal Cycle in the Multiscale Modeling Framework Using Satellite and ARM Data Download a printable PDF Submitter: Zhang, Y., Lawrence Livermore National Laboratory Klein, S., Lawrence Livermore National Laboratory Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: Zhang, Y, SA Klein, C Liu, B Tian, RT Marchand, JM Haynes, RB McCoy, Y Zhang, and TP Ackerman. 2008. "On the diurnal cycle of deep

  15. Research Highlight

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

    To Be or Not to Be Liquid? the Challenge of Arctic Mixed-Phase Cloud Modeling Download a printable PDF Submitter: Klein, S., Lawrence Livermore National Laboratory Morrison, H. C., NCAR McCoy, R. B., Lawrence Livermore National Laboratory Xie, S., Lawrence Livermore National Laboratory Luo, Y., Chinese Academy of Meteorological Sciences Ackerman, A., NASA - Goddard Institute for Space Studies Avramov, A., Columbia University de Boer, G., University of Colorado, Boulder/CIRES Chen, M., Colorado

  16. Research Highlight

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

    Evaluation of CRM Intercomparison Simulations Using TWP-ICE Observations, Part 1 Download a printable PDF Submitter: Varble, A., University of Utah Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Varble AC, AM Fridlind, EJ Zipser, AS Ackerman, J Chaboureau, J Fan, A Hill, SA McFarlane, J Pinty, and B Shipway. 2011. "Evaluation of cloud-resolving model intercomparison simulations using TWP-ICE observations: Precipitation and cloud

  17. Research Highlight

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

    Influence of Humidified Aerosols on Lidar Depolarization Below Ice-Precipitating Arctic Clouds Download a printable PDF Submitter: Fridlind, A. M., NASA - Goddard Institute for Space Studies van Diedenhoven, B., NASA - Goddard Institute for Space Studies Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, and AS Ackerman. 2011. "Influence of humidified aerosol on lidar depolarization measurements below

  18. Research Highlight

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

    Intercomparison of Model Simulations of Arctic Mixed-Phase Clouds Download a printable PDF Submitter: Morrison, H. C., NCAR Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Life Cycle Journal Reference: Morrison H, P Zuidema, AS Ackerman, A Avramov, G de Boer, J Fan, AM Fridlind, T Hashino, JY Harrington, Y Luo, M Ovchinnikov, and B Shipway. 2011. "Intercomparison of cloud model simulations of Arctic mixed-phase boundary layer clouds observed during

  19. Research Highlight

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

    Millimeter Wave Scattering from Ice Crystals and Their Aggregates Download a printable PDF Submitter: Botta, G., Pennsylvania State University Verlinde, J., The Pennsylvania State University Area of Research: Radiation Processes Working Group(s): Cloud Life Cycle Journal Reference: Botta G, K Aydin, J Verlinde, A Avramov, A Ackerman, A Fridlind, M Wolde, and G McFarquhar. 2011. "Millimeter wave scattering from ice crystals and their aggregates: Comparing cloud model simulations with X- and

  20. Research Highlight

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    Satellite Constraints on Cloud-Top Phase, Ice Size, and Asymmetry Parameter over Deep Convection Download a printable PDF Submitter: van Diedenhoven, B., NASA - Goddard Institute for Space Studies Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: van Diedenhoven B, AM Fridlind, AS Ackerman, and B Cairns. 2012. "Evaluation of hydrometeor phase and ice properties in cloud-resolving model

  1. Research Highlight

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    Progress in Understanding Water Vapor's Role in Models Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Time-height cross sections of water vapor mixing ratio, which is observed directly by the ARM Raman lidar at 10-min and approximately 100 m resolution, and relative humidity for 29 November through 2 December 2002. The bottom panel shows the comparison of

  2. Research Highlight

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    Quantifying the Magnitude of Anomalous Solar Absorption Submitter: Ackerman, T. P., University of Washington Area of Research: General Circulation and Single Column Models/Parameterizations Working Group(s): Cloud Modeling Journal Reference: N/A Figure 1 Spurred by a series of articles published in 1995 claiming solar absorption in cloudy atmospheres far exceeded model predictions, Atmospheric Radiation Measurement (ARM) Program researchers at the Southern Great Plains (SGP) site in Oklahoma

  3. Research Highlight

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

    Research Masters the Misunderstood Mixed-Phase Cloud Download a printable PDF Submitter: Ovchinnikov, M., Pacific Northwest National Laboratory Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud Life Cycle, Cloud-Aerosol-Precipitation Interactions Journal Reference: Ovchinnikov M, AS Ackerman, A Avramov, A Cheng, J Fan, AM Fridland, S Ghan, J Harrington, C Hoose, A Korolev, GM McFarquhar, H Morrison, M Paukert, J Savre, BJ Shipway, MD Shupe, A Solomon, and K

  4. Research Highlight

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

    Overly Intense Convective Updrafts Exposed as a Significant Contributor to Model Biases Submitter: Varble, A., University of Utah Zipser, E., University of Utah Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Varble A, EJ Zipser, AM Fridlind, P Zhu, AS Ackerman, J Chaboureau, S Collis, J Fan, A Hill, and B Shipway. 2014. "Evaluation of cloud-resolving and limited area model simulations using TWP-ICE observations. Part 1: Deep convective updraft

  5. Research Highlight

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

    Finding the Causes for Consistently Low Biased Stratiform Rainfall in Models Submitter: Varble, A., University of Utah Zipser, E., University of Utah Area of Research: Cloud Processes Working Group(s): Cloud Life Cycle Journal Reference: Varble A, EJ Zipser, AM Fridlind, P Zhu, AS Ackerman, J Chaboureau, J Fan, A Hill, B Shipway, and C Williams. 2014. "Evaluation of cloud-resolving and limited area model simulations using TWP-ICE observations. 2. Precipitation microphysics." Journal of

  6. Research Highlight

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

    KDP Columns: Characterizing Deep Thunderstorm Updrafts Using Polarimetric Radar Download a printable PDF Submitter: van Lier-Walqui, M., NASA Fridlind, A. M., NASA - Goddard Institute for Space Studies Area of Research: Cloud-Aerosol-Precipitation Interactions Working Group(s): Cloud-Aerosol-Precipitation Interactions Journal Reference: van Lier-Walqui M, AM Fridlind, AS Ackerman, S Collis, J Helmus, DR MacGorman, K North, P Kollias, and DJ Posselt. 2015. "On polarimetric radar signatures

  7. Research Highlight

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

    Continuous Dataset of Water Vapor Measurements Throws Water on Assumptions of Cirrus Cloud Formation Submitter: Comstock, J. M., Pacific Northwest National Laboratory Area of Research: Cloud Distributions/Characterizations Working Group(s): Cloud Properties Journal Reference: Comstock, J. M., T. P. Ackerman, and D. D. Turner, 2004: Evidence of high ice supersaturation in cirrus clouds using ARM Raman lidar measurements. Geophys. Res. Letters, doi:10.1029/2004GL019705. To illustrate their

  8. Working Group Reports

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    5 Working Group Reports Special Working Session on the Role of Buoy Observations in the Tropical Western Pacific Measurement Scheme J. Downing Marine Sciences Laboratory Sequim, Washington R. M. Reynolds Brookhaven National Laboratory Upton, New York Attending W. Clements (TWPPO) F. Barnes (TWPPO) T. Ackerman (TWP Site Scientist) M. Ivey (ARCS Manager) H. Church J. Curry J. del Corral B. DeRoos S. Kinne J. Mather J. Michalsky M. Miller P. Minnett B. Porch J. Sheaffer P. Webster M. Wesely K.

  9. X:\ARM_19~1\P273-281.WPD

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

    RH c ) RH c RH c RH c Session Papers 273 Evaluation of Cloud Prediction and Determination of Critical Relative Humidity for a Mesoscale Numerical Weather Prediction Model N. L. Seaman, Z. Guo, and T. P. Ackerman Pennsylvania State University, Department of Meteorology University Park, Pennsylvania Predictions of cloud occurrence and vertical location from the Pennsylvania State University/National Center for Atmospheric Research nonhydrostatic mesoscale model (MM5) were evaluated statistically

  10. boehm-98.pdf

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

    1 Numerical Studies of Tropical Cirrus Clouds Using a Cirrus Model with Explicit Microphysics M. T. Boehm, J. Verlinde, and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction Data from the Atmospheric Radiation Measurement (ARM) Program site on Manus Island in the Tropical Western Pacific (TWP) reveal the presence of high cirrus layers 1 km to 2 km thick with lifetimes of several hours to a day. Studies are being conducted of the

  11. chang-98.pdf

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

    7 Relationship Between TOA Albedo and Cloud Optical Depth as Deduced from Models and Collocated AVHRR and ERBE Satellite Observations F.-L. Chang and Z. Li Canada Centre for Remote Sensing Ottawa, Ontario, Canada S. A. Ackerman Department of Atmospheric and Oceanic Sciences University of Wisconsin-Madison Introduction It has long been recognized that clouds have a large influence on the earth's radiation budget and climate. Current cloud and radiation research programs, such as the Clouds and

  12. clements-99.PDF

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

    Nauru: The Second ARM Tropical Western Pacific Site W. E. Clements, F. J. Barnes, and L. Jones ARM Tropical Western Pacific Program Office University of California Los Alamos National Laboratory Los Alamos, New Mexico M. Ivey Sandia National Laboratories Livermore, California A. Koontz Pacific Northwest National Laboratory Richland, Washington T. P. Ackerman and J. H. Mather The Pennsylvania State University University Park, Pennsylvania P. Lefale South Pacific Regional Environmental Progamme

  13. dong(2)-98.pdf

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

    5 Validation of Cloud Microphysical Retrievals from Surface- and Satellite-Based Measurements Obtained During the Fall of 96 Penn State Aircraft Experiment X. Dong Analytical Services and Materials, Inc., Hampton, Virginia E. E. Clothiaux, N. Miles, J. Verlinde, and T. P. Ackerman The Pennsylvania State University University Park, Pennsylvania P. Minnis NASA-Langley Research Center Hampton, Virginia B. A. Albrecht University of Miami Miami, Florida Introduction Comparisons with aircraft in situ

  14. dong-98.pdf

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

    1 Vertical Profiles of Continental Stratus Cloud Properties Retrieved from Radar/Lidar/Radiometer Measurements During ARESE and SUCCESS X. Dong Analytical Services and Materials, Inc. Hampton, Virginia E. E. Clothiaux and T. P. Ackerman The Pennsylvania State University University Park, Pennsylvania P. Minnis NASA-Langley Research Center Hampton, Virginia Introduction Knowledge of the vertical structure of a cloud's microphysical characteristics is important for a variety of reasons. The

  15. Local Correlations and Multi-Fractal Behaviour in Marine Boundary Layer Cloud Dynamics

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

    Local Correlations and Multi-Fractal Behaviour in Marine Boundary Layer Cloud Dynamics N. Kitova and M. A. Mikhalev Institute of Electronics Bulgarian Academy of Sciences Sofia 1784, Bulgaria K. Ivanova Department of Meteorology Pennsylvania State University University Park, Pennsylvania M. Ausloos Institute of Physics University of Liège Liège, Belgium T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction The marine boundary layer (MBL) cloud dynamics is

  16. ARM - VAP Process - sfccldgrid

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

    Productssfccldgrid Documentation & Plots Technical Report Data Management Facility Plots (Quick Looks) ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send VAP : Surface Cloud Grid (SFCCLDGRID) Instrument Categories Cloud Properties, Derived Quantities and Models The Surface Cloud Grid VAP uses as input the 15-minute output from the Shortwave Flux Analysis VAP (Long, 2001; Long and Ackerman, 2000; Long et al., 1999)

  17. ARM - VAP Process - swfluxanal

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

    Productsswfluxanal Documentation & Plots Technical Report Data Management Facility Plots (Quick Looks) ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send VAP : Shortwave Flux Analysis (SWFLUXANAL) Instrument Categories Radiometric, Cloud Properties The SW (shortwave) Flux Analysis VAP applies a clear-sky detection and fitting technique (Long and Ackerman 2000) to data from broadband SW radiometers located at the

  18. 1

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

    Multi-Angle Remote Sensing of Cumulus Geometry E. I. Kassianov Pacific Northwest National Laboratory Richland, Washington and Institute of Atmospheric Optics Tomsk, Russia T. P. Ackerman and R. T. Marchand Pacific Northwest National Laboratory Richland, Washington Introduction Satellite remote sensing is the major source for statistics of cloud properties; however, accurate and robust methods for extracting both optical and geometrical characteristics of broken clouds have yet to be fully

  19. 1

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

    Stochastic Radiative Transfer in Broken Clouds: Validation Tests E. Kassianov, T. P. Ackerman, R. T. Marchand, and M. Ovtchinnikov Pacific Northwest National Laboratory Richland, Washington Introduction An approach for the stochastic description of the solar radiation transfer through broken fields with the arbitrary horizontal and vertical inhomogeneity have been introduced (Kassianov 2000). Different combinations of the random and maximum cloud overlap can be treated by the suggested approach.

  20. 1

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

    Multi-Angle Satellite Retrieval of Cumulus Thickness at the ARM TWP Site: Validation Tests E. I. Kassianov, T. P. Ackerman, R. T. Marchand, and M. Ovtchinnikov Pacific Northwest National Laboratory Richland, Washington Introduction Most satellite-based analyses have been conducted using nadir-viewing sensors. The multi-angle Imaging SpectroRadiometer (MISR), recently launched on the (National Aeronautics and Space Administration (NASA) Terra platform, provides high-resolution measurements of

  1. 1

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

    Effect of Stratus on Solar Radiation: A Study Using Millimeter Wave Cloud Radar and Microwave Radiometer Data From the Southern Great Plains M. Sengupta and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington E. E. Clothiaux The Pennsylvania State University University Park, Pennsylvania Introduction Clouds are important players in the global radiation budget with low-level water clouds being one of the most influential types. Classified as stratocumulus and stratus, these

  2. 1

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    ARM AERI with Trent FTS Spectra for the Measurement of Greenhouse Radiative Fluxes W. F. J. Evans and E. Puckrin Trent University Peterborough, Ontario T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction For the past several years, measurements of the atmospheric thermal infrared spectra have been made at the mid-latitude site of Trent University in Peterborough, Ontario, at a high resolution of 0.25 cm -1 . These measurements are similar to those conducted

  3. 1

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    Effect of Fair-Weather Cumulus Cloud Field Anisotropy on Radiative Surface Fluxes L. M. Hinkelman and E. E. Clothiaux Department of Meteorology Pennsylvania State University University Park, Pennsylvania K. F. Evans Atmospheric and Oceanic Sciences Program University of Colorado Boulder, Colorado T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction Recently, substantial efforts have been made to determine the impact of three-dimensional (3D) cloud structure on

  4. hagan-98.pdf

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

    Aerobot-based Measurements of the Profile of Downwelling Shortwave Irradiance D. Hagan, J.-F. Blavier, and D. Crisp Jet Propulsion Laboratory California Institute of Technology Pasadena, California L. Di Girolamo University of Chicago Chicago, Illinois T. P. Ackerman The Pennsylvania State University College Park, Pennsylvania Summary Using a helium plus reversible fluid balloon system as the observing platform, multiple profiles of shortwave irradi- ance between 4 km and 10 km were recently

  5. hinkelman-98.pdf

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

    9 Evaluation of the Performance of the Physics Routines in an Operational Prediction Model L. M. Hinkelman and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction A number of high-resolution forecast models are currently being used to make routine forecasts of cloud properties and the surface radiation budget over the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site. Such model output has the potential to

  6. hinkelman-99.PDF

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    Shortwave Radiative Processes and Cloud Prediction in the Eta Forecast Model L. M. Hinkelman, T. P. Ackerman, and R. T. Marchand Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction In an earlier work (Hinkelman et al. 1999), time series of surface flux predictions from the National Centers for Environmental Prediction (NCEP) Eta forecast model were evaluated by comparison to measured values from the Atmospheric Radiation Measurement (ARM)

  7. jensen-99.PDF

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    Impacts of Anvil Outflow During the Maritime Continent Thunderstorm Experiment M. P. Jensen and T. P. Ackerman Department of Meteorology Pennsylvania State University University Park, Pennsylvania S. M. Sekelsky Department of Electrical Engineering University of Massachusetts Amherst, Massachusetts Introduction The Maritime Continent Thunderstorm Experiment (MCTEX) took place from November 13 to December 10, 1995, on the Tiwi Islands, Australia (Figure 1). The primary objective of the field

  8. kato-98.pdf

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

    A Comparison of Modeled and Measured Surface Shortwave Irradiance for a Molecular Atmosphere S. Kato* and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania *Now at Hampton University Hampton, Virginia E. G. Dutton NOAA-Climate Monitoring and Diagnostics Laboratory Boulder, Colorado N. Laulainen and N. Larson Pacific Northwest National Laboratory Richland, Washington Introduction There is a growing body of evidence that models overestimate

  9. kato-99.PDF

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

    the Aerosol Thickness Derived from Ground-Based and Airborne Measurements S. Kato Hampton University Hampton, Virginia M. H. Bergin Georgia Institute of Technology Atlanta, Georgia T. P. Ackerman and E. E. Clothiaux The Pennsylvania State University University Park, Pennsylvania T. P. Charlock and R. A. Ferrare National Aeronautics and Space Administration Langley Research Center Hampton, Virginia N. S. Laulainen and D. D. Turner Pacific Northwest National Laboratory Richland, Washington G. G.

  10. marchand-99.PDF

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

    Two-Year Cloud Climatology for the Southern Great Plains Site R. T. Marchand, T. P. Ackerman, and E. E. Clothiaux Pennsylvania State University University Park, Pennsylvania Introduction The addition of the millimeter cloud radar to the suite of instruments at the Southern Great Plains (SGP) site has provided the necessary observations to produce a cloud climatology. Using algorithms developed by our research group, data from the radar are combined with data from the Belfort ceilometer and

  11. mather-99.PDF

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    Cloud Properties Derived from the Manus Micropulse Lidar with ECMWF Analyses J. H. Mather and T. P. Ackerman Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction Clouds in the tropics are an ever-present feature and their vertical and temporal distributions are very complex. The Tropical Western Pacific (TWP) is characterized by warm sea surface temperatures and frequent convection. This convection occurs on a wide range of scales, from hundreds

  12. pavloski-98.pdf

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

    1 Using a Sun Photometer as a Narrow Field of View, Vertically Pointing, Narrowband Radiometer: Instrument Design and Concept Verification C. F. Pavloski, T. P. Ackerman, S. Kato, and E. E. Clothiaux Department of Meteorology The Pennsylvania State University University Park, Pennsylvania Introduction The Pennsylvania State University (PSU) Sun Photometer, deployed as a vertically pointing, 2° field of view (FOV), shortwave spectral instrument, is capable of recording zenith cloud variability

  13. pavloski-99.PDF

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

    High Speed Cloud Optical Depth Retrievals from a Narrow Field of View, Narrowband, Shortwave, Zenith Pointing Radiometer C. F. Pavloski The Pennsylvania State University Department of Meteorology University Park, Pennsylvania T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction The Atmospheric Radiation Measurement (ARM) Program has recently deployed a new, shortwave, Narrow Field of View (NFOV) Zenith radiometer at the Southern Great Plains (SGP) facility. The

  14. sekelsky-99.PDF

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

    Radar Calibration Validation for the SGP CART Summer 1998 DC-8 Cloud Radar Experiment S. M. Sekelsky, L. Li, and G. A. Sadowy University of Massachusetts Amherst, Massachusetts S. L. Durden, S. J. Dindardo, and F. K. Li National Aeronautics and Space Administration Jet Propulsion Laboratory Pasadena, California A. C. Huffman III and G. L. Stephens Colorado State University Fort Collins, Colorado H. W. Rosenberger, D. M. Babb, and T. P. Ackerman The Pennsylvania State University University Park,

  15. An Analysis of Cloud Absorption During

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

    Analysis of Cloud Absorption During ARESE II (Spring 2000) D. M. Powell, R. T. Marchand, and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction In early spring 2000, Atmospheric Radiation Measurement (ARM) Program researchers held an intensive operational period (IOP) at the ARM Southern Great Plains (SGP) site. This IOP had several objectives, one of which was to was to re-evaluate (with redundant measurements wherever possible) absorption by low-level

  16. An Evaluation of MWR Retrievals of Liquid Water Path

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    Evaluation of MWR Retrievals of Liquid Water Path and Precipitable Water Vapor R. T. Marchand and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction This paper offers some observations on the quality of Microwave Radiometer (MWR) retrievals of precipitable water vapor (PWV) and liquid water path (LWP). The paper shows case study comparisons between the standard "statistical" approach and those obtained using an iterative solution of the microwave

  17. Equations Governing Space-Time Variability of Liquid Water Path in Stratus Clouds

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    Equations Governing Space-Time Variability of Liquid Water Path in Stratus Clouds K. Ivanova Pennsylvania State University University Park, Pennsylvania T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington M. Ausloos University of Liège B-4000 Liège, Belgium Abstract We present a method on how to derive an underlying mathematical (statistical or model free) equation for a liquid water path (LWP) signal directly from empirical data. The evolution of the probability density

  18. POLICY GUIDANCE MEMORANDUM #16 OPM Managers' Satisfaction Survey |

    Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

    Department of Energy 6 OPM Managers' Satisfaction Survey POLICY GUIDANCE MEMORANDUM #16 OPM Managers' Satisfaction Survey This memorandum provides guidance on how to implement the requirement for hiring managers to complete the OPM Managers' Satisfaction Survey before Servicing Human Resources Offices (SHROs) can make an official offer to any job selectee. POLICY GUIDANCE MEMORANDUM #16 OPM Managers' Satisfaction Survey (114.07 KB) Responsible Contacts Jennifer Ackerman Director, Human

  19. 1

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    Phase Determination in the Arctic Using AERI Data D. D. Turner and S. A. Ackerman Cooperative Institute for Meteorological Satellite Studies University of Wisconsin - Madison Madison, Wisconsin Introduction Cloud-radiative processes in the Arctic have a large and significant effect on the global energy budget. Curry et al. (1996) have identified cloud phase as one of the primary unknowns, which affects the radiation budget in the Arctic. To correctly determine cloud properties, such as particle

  20. 1

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    Factors Controlling the Properties of Multi-Phase Arctic Stratocumulus Clouds A. Fridlind and A. Ackerman National Aeronautics and Space Administration - Ames Research Center Moffett Field, California S. Menon and I. Sednev Lawrence Berkeley National Laboratory Berkeley, California Introduction The October 2004 Multi-Phase Arctic Cloud Experiment (M-PACE) Intensive Operational Period (IOP) at the Atmospheric Radiation Measurement (ARM) Climate Research Facility's (ACRF's) North Slope of Alaska

  1. 1

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

    Microphysical and Optical Properties from Multifilter Rotating Shadowband Radiometers E. Kassianov, J. Barnard, T. Ackerman, C. Flynn, and D. Flynn Pacific Northwest National Laboratory Richland, Washington Introduction Multifilter rotating shadowband radiometers (MFRSRs) provide measurements of the total and diffuse solar irradiances at six wavelengths (415, 500, 615, 673, 870 and 940 nm). Direct solar irradiances are inferred by finding the difference between the two measured irradiances, and

  2. 1

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    the Estimation of Clear-Sky Upwelling Shortwave and Longwave C.N. Long Pacific Northwest National Laboratory Richland, Washington Introduction Previous work (Long and Ackerman 2000; Long 2004) has concentrated on estimating the downwelling clear-sky irradiances and calculating the effect of clouds on the downwelling radiative energy budget. However, cloud forcing is defined for the difference between clear- and cloudy-sky net radiation, which includes the upwelling components. Thus, if we are to

  3. 1

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    Dust Properties Derived from Multi-Filter Rotating Shadowband Radiometer Data in Niamey E. Kassianov, T. Ackerman, J. Barnard, C. Flynn, and S. McFarlane Pacific Northwest National Laboratory Richland, Washington Introduction One of the key uncertainties in the earth's radiation balance is the effect of dust on radiative fluxes (aerosol radiative forcing), which in turn affects climatic processes on both planetary and local scales (e.g., Intergovernmental Panel on Climate Change 2001; Sokolik et

  4. 1

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    An Evaluation of Cloud Cover, Cloud Effect, and Surface Radiation Budgets at the Tropical Western Pacific Darwin Site C.N. Long and K. Gaustad Pacific Northwest National Laboratory Richland, Washington Shortwave Flux Analysis Value Added Product The Shortwave Flux Analysis (SWFA) Value-Added Product (VAP) was developed originally for daily fitting of coefficients (Long and Ackerman 2000). However, daily fitting calls for at least 110 one- minute clear data/day as minimum requirement. As shown in

  5. 1

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    Tropical Radiative Heating Profiles in the Multi- Scale Modeling Framework: A Comparison to Atmospheric Radiation Measurement Program Observations S.A. McFarlane, J.H. Mather, and T.P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction Radiative heating associated with the distribution of water vapor and clouds in the atmosphere is an important driver of both local-scale and large-scale circulations in the tropics. One of the difficulties in producing accurate cloud

  6. 1488B-FRT.PDF

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    9-004 Tropical Western Pacific Cloud and Radiation Testbed: Science, Siting, and Implementation Strategies November 1999 T. P. Ackerman Pacific Northwest National Laboratory W. E. Clements F. J. Barnes Los Alamos National Laboratory D. S. RennJ National Renewable Energy Laboratory Work supported by the U.S. Department of Energy, Office of Energy Research, Office of Health and Environmental Research Disclaimer This report was prepared as an account of work sponsored by the United States

  7. Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds

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    Broadband Longwave Radiative Cooling Rates in Inhomogeneous Stratocumulus Clouds M. Ovtchinnikov and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington D. B. Mechem and Y. L. Kogan Cooperative Institute for Mesoscale Meteorological Studies University of Oklahoma Norman, Oklahoma R. F. Cahalan National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland A. B. Davis Los Alamos National Laboratory Los Alamos, New Mexico R. G. Ellingson and E.

  8. Comparison of Cirrus Cloud Radiative Properties and Dynamical Processes at Two Atmospheric Radiation Measurement (ARM) Si...

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    Cirrus Cloud Radiative Properties and Dynamical Processes at Two Atmospheric Radiation Measurement Sites in the Tropical Western Pacific J. M. Comstock, J. H. Mather, and T. P. Ackerman Pacific Northwest National Laboratory Richland, Washington Introduction Upper tropospheric humidity plays an important role in the formation and maintenance of tropical cirrus clouds. Deep convection is crucial for the transport of water vapor from the boundary layer to the upper troposphere and is

  9. Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP,

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    MISR, and MODIS Comparison of Cloud Top Height and Optical Depth Histograms from ISCCP, MISR, and MODIS Marchand, Roger Pacific Northwest National Laboratory Ackerman, Thomas Pacific Northwest National Laboratory Category: Cloud Properties Joint histograms of Cloud Top Height (CTH) and Optical Depth (OD) derived by the International Satellite Cloud Climatology Project (ISCCP) are being widely used by the climate modeling community in evaluating global climate models. Similar joint histograms

  10. Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site

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    Cumulus Geometry from Satellite and Surface Data at the ARM TWP Site E. I. Kassianov, T. P. Ackerman, and R. T. Marchand Pacific Northwest National Laboratory Richland, Washington Introduction The multi-angle imaging spectrometer (MISR), a sensor on board the earth observing system (EOS) Terra satellite platform, observes reflected radiation in nine directions with high resolution (~0.275 km). The overall mission of the MISR is to provide continuous, global multi-angle measurements of the