Optimal measurement of surface shortwave irradiance using current instrumentation -- the ARM experience

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Shortwave (solar) measurements of surface irradiance for clear sky conditions disagree with a number of different models. Betts used the European Center for Medium-range Forecasts (ECMWF) shortwave model to calculate surface irradiance that were 5-10 percent higher than measurements. Wild used a different formulation of the ECMWF shortwave model, but found that the model overpredicted clear-sky shortwave and average of 3 percent. Ding and Wang used data from the Atmospheric Radiation Measurement (ARM) program and found that the GENESIS GCM shortwave model, likewise, overpredicted clear-sky irradiance by about 4 percent. To help resolve the measurement dilemma, reference instruments were deployed ... continued below

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4 p.

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Michalsky, J.; Rubes, M.; Stoffel, T.; Wesley, M.; Splitt, M. & DeLuisi, J. March 1, 1997.

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  • Michalsky, J. State Univ. of New York, Albany, NY (United States). Atmospheric Sciences Research Center
  • Rubes, M. Colorado Univ., Boulder, CO (United States). Cooperative Inst. for Research in Environmental Sciences
  • Stoffel, T. National Renewable Energy Lab., Golden, CO (United States)
  • Wesley, M. Argonne National Lab., IL (United States). Environmental Research Div.
  • Splitt, M. Oklahoma Univ., Norman, OK (United States)
  • DeLuisi, J. National Oceanic and Atmospheric Administration, Boulder, CO (United States)

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Description

Shortwave (solar) measurements of surface irradiance for clear sky conditions disagree with a number of different models. Betts used the European Center for Medium-range Forecasts (ECMWF) shortwave model to calculate surface irradiance that were 5-10 percent higher than measurements. Wild used a different formulation of the ECMWF shortwave model, but found that the model overpredicted clear-sky shortwave and average of 3 percent. Ding and Wang used data from the Atmospheric Radiation Measurement (ARM) program and found that the GENESIS GCM shortwave model, likewise, overpredicted clear-sky irradiance by about 4 percent. To help resolve the measurement dilemma, reference instruments were deployed in April 1996 at the Southern Great Plains ARM site central facility very near the shortwave measurements. The rest of the paper describes the experiment undertaken to ascertain total horizontal shortwave irradiance at the surface, including a separation of the direct normal and diffuse horizontal components. Results and a discussion of same concludes the paper.

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4 p.

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OSTI as DE97003230

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  • 77. annual meeting of the American Meteorological Society, Long Beach, CA (United States), 2-7 Feb 1997

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  • Other: DE97003230
  • Report No.: ANL/ER/CP--91459
  • Report No.: DOE/ER/61072--26;CONF-970207--6
  • Grant Number: FG02-90ER61072;AC36-83CH10093;W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 460798
  • Archival Resource Key: ark:/67531/metadc684271

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • March 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • Dec. 14, 2015, 6:43 p.m.

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Michalsky, J.; Rubes, M.; Stoffel, T.; Wesley, M.; Splitt, M. & DeLuisi, J. Optimal measurement of surface shortwave irradiance using current instrumentation -- the ARM experience, article, March 1, 1997; Illinois. (digital.library.unt.edu/ark:/67531/metadc684271/: accessed April 26, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.