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The Validation of the GEWEX SRB Surface Shortwave Flux Data Products Using BSRN Measurements: A Systematic Quality Control, Production and Application ApproachThe NASA/GEWEX Surface Radiation Budget (SRB) project has produced a 24.5-year continuous record of global shortwave and longwave radiation fluxes at TOA and the Earth's surface from satellite measurements. The time span of the data is from July 1983 to December 2007, and the spatial resolution is 11 latitude11 longitude. The inputs of the latest version (Release 3.0) include the GEOS Version 4.0.3 meteorological information and cloud properties derived from ISCCP DX data. The SRB products are available on 3-hourly, 3-hourly-monthly, daily and monthly time scales. To assess the quality of the product, we extensively validated the SRB data against 5969 site-months of groundbased measurements from 52 Baseline Surface Radiation Network (BSRN) stations. This paper describes first the characteristics of the BSRN data and the GEWEX SRB data, the methodology for quality control and processing of the shortwave BSRN data, and then the systematic SRB-BSRN comparisons. It is found that, except for occasional extreme outliers as seen in scatter plots, the satellite-based surface radiation data generally agree very well with BSRN measurements. Specifically, the bias/RMS for the daily and monthly mean shortwave fluxes are, respectively, -3.6/35.5 and -5.2/23.3W1 m2 under all-sky conditions.
Document ID
20140005031
Document Type
Reprint (Version printed in journal)
Authors
Zhang, Taiping (Science Systems and Applications, Inc. Hampton, VA, United States)
Stackhouse, Paul W., Jr. (NASA Langley Research Center Hampton, VA, United States)
Gupta, Shashi K. (Science Systems and Applications, Inc. Hampton, VA, United States)
Cox, Stephen J. (Science Systems and Applications, Inc. Hampton, VA, United States)
Mikovitz, J. Colleen (Science Systems and Applications, Inc. Hampton, VA, United States)
Hinkelman, Laura M. (Washington Univ. Seattle, WA, United States)
Date Acquired
May 7, 2014
Publication Date
June 1, 2013
Publication Information
Publication: Journal of Quantitative Spectroscopy and Radiative Transfer
Volume: 122
Subject Category
Meteorology and Climatology
Report/Patent Number
NF1676L-15638
Funding Number(s)
WBS: WBS 281945.02.20.01.48
Distribution Limits
Public
Copyright
Other