The Experts below are selected from a list of 273 Experts worldwide ranked by ideXlab platform

R. M. Reynolds - One of the best experts on this subject based on the ideXlab platform.

  • An Atmospheric Radiation and Cloud Station in the Tropical Western Pacific
    Bulletin of the American Meteorological Society, 1998
    Co-Authors: J. H. Mather, Thomas P Ackerman, William E. Clements, F. J. Barnes, Mark D. Ivey, L. D. Hatfield, R. M. Reynolds
    Abstract:

    Abstract The interaction of clouds and Radiation is a particularly difficult issue in the study of climate change. Clouds have a large impact on the earth's Radiation budget but the range of spatial and temporal scales and the complexity of the physical processes associated with clouds made these interactions difficult to simulate. The Department of Energy's Atmospheric Radiation Measurement (ARM) program was established to improve the understanding of the interaction of Radiation with the atmosphere with a particular emphasis on the effects of clouds. To continue its role of providing data for the study of these interactions, the ARM program deployed an Atmospheric Radiation and Cloud Station (ARCS) in the tropical western Pacific. This site began operation in October 1996. The tropical western Pacific is a very important climatic region. It is characterized by strong solar heating, high water vapor concentrations, and active convection. The ARCS is equipped with a comprehensive suite of instruments for ...

J. H. Mather - One of the best experts on this subject based on the ideXlab platform.

  • An Atmospheric Radiation and Cloud Station in the Tropical Western Pacific
    Bulletin of the American Meteorological Society, 1998
    Co-Authors: J. H. Mather, Thomas P Ackerman, William E. Clements, F. J. Barnes, Mark D. Ivey, L. D. Hatfield, R. M. Reynolds
    Abstract:

    Abstract The interaction of clouds and Radiation is a particularly difficult issue in the study of climate change. Clouds have a large impact on the earth's Radiation budget but the range of spatial and temporal scales and the complexity of the physical processes associated with clouds made these interactions difficult to simulate. The Department of Energy's Atmospheric Radiation Measurement (ARM) program was established to improve the understanding of the interaction of Radiation with the atmosphere with a particular emphasis on the effects of clouds. To continue its role of providing data for the study of these interactions, the ARM program deployed an Atmospheric Radiation and Cloud Station (ARCS) in the tropical western Pacific. This site began operation in October 1996. The tropical western Pacific is a very important climatic region. It is characterized by strong solar heating, high water vapor concentrations, and active convection. The ARCS is equipped with a comprehensive suite of instruments for ...

Warren J. Gore - One of the best experts on this subject based on the ideXlab platform.

  • Atmospheric Radiation Measurements Enhanced Shortwave Experiment (ARESE): Experimental and data details
    Journal of Geophysical Research: Atmospheres, 1997
    Co-Authors: Francisco Valero, Anthony Bucholtz, Brett C. Bush, Shelly K. Pope, William D. Collins, Piotr J. Flatau, Anthony W. Strawa, Warren J. Gore
    Abstract:

    Atmospheric Radiation Measurements Enhanced Shortwave Experiment (ARESE) was conducted to study the magnitude and spectral characteristics of the absorption of solar Radiation by the clear and cloudy atmosphere. Three aircraft platforms, a Grob Egrett, a NASA ER-2, and a Twin Otter, were used during ARESE in conjunction with the Atmospheric Radiation Measurements (ARM) central and extended facilities in north central Oklahoma. The aircraft were coordinated to simultaneously measure solar irradiances in the total spectral broadband (0.224-3.91 μm), near infrared broadband (0.678-3.3 μm), and in seven narrow band-pass (∼10 nm width) channels centered at 0.500, 0.862, 1.064, 1.249, 1.501, 1.651, and 1.750 μm. Instrumental calibration issues are discussed in some detail, in particular radiometric power, angular, and spectral responses. The data discussed in this paper are available at the ARM ARESE data archive via anonymous FTP to ftp.arm.gov.

Stephen E. Schwartz - One of the best experts on this subject based on the ideXlab platform.

  • The Atmospheric Radiation Measurement (ARM) Program: Programmatic Background and Design of the Cloud and Radiation Test Bed
    Bulletin of the American Meteorological Society, 1994
    Co-Authors: Gerald M. Stokes, Stephen E. Schwartz
    Abstract:

    Abstract The Atmospheric Radiation Measurement (ARM) Program, supported by the U.S. Department of Energy, is a major new program of Atmospheric measurement and modeling. The program is intended to improve the understanding of processes that affect Atmospheric Radiation and the description of these processes in climate models. An accurate description of Atmospheric Radiation and its interaction with clouds and cloud processes is necessary to improve the performance of and confidence in models used to study and predict climate change. The ARM Program will employ five (this paper was prepared prior to a decision to limit the number of primary measurement sites to three) highly instrumented primary measurement sites for up to 10 years at land and ocean locations, from the Tropics to the Arctic, and will conduct observations for shorter periods at additional sites and in specialized campaigns. Quantities to be measured at these sites include longwave and shortwave Radiation, the spatial and temporal distributi...

P. J. Gero - One of the best experts on this subject based on the ideXlab platform.

  • Downwelling 10 μm radiance temperature climatology for the Atmospheric Radiation Measurement Southern Great Plains site
    Journal of Geophysical Research, 2011
    Co-Authors: David D. Turner, P. J. Gero
    Abstract:

    [1] Fourteen years of data from the Atmospheric Emitted Radiance Interferometer were used to determine the distribution of downwelling infrared radiance at 10 μm at the Department of Energy's Atmospheric Radiation Measurement (ARM) site in north central Oklahoma. A neural network classification algorithm was applied to each infrared radiance observation to separate clear-sky from cloudy conditions, with the latter being separated into two broad categories using a simple threshold on the downwelling radiance temperature to separate “thick” from “thin” clouds. This distribution shows a prominent trimodal character. The mode associated with the highest downwelling radiance values is associated with thick low-altitude opaque clouds, whereas the other two modes each contain both clear-sky and thin cloud samples. The distribution of the downwelling radiance in each classification is qualitatively similar for each year in the larger data set. A strong seasonal dependence is seen in the distribution of the radiance in the three classifications, with the clear-sky classification being well correlated with the seasonal distribution of precipitable water vapor.