The objective of NASA/GEWEX SRB project is to produce and archive a long-term record of global gridded datasets for shortwave (SW) and longwave (LW) surface and TOA parameters. SW and LW SRB data sets are derived on a 1° x 1° global grid with two sets of algorithms, known as primary and Langley parameterized algorithms, and from a variety of input data sources.
These datasets are produced using cloud parameters derived from International Satellite Cloud Climatology Project (ISCCP) products and meteorological inputs from GMAO reanalysis datasets with radiative transfer algorithms. Column ozone values were obtained from the Total Ozone Mapping Spectrometer (TOMS) archive, from OMI aboard Aura satellite, TOVS and from the beginning of January 2005, GEWEX/SRB started using a daily analysis ozone product from NOAA Climate Predictions Center (CPC), known as the Stratospheric Monitoring-group Ozone Blended Analysis (SMOBA). Temperature and moisture profiles were obtained from the 4-D data assimilation Goddard EOS Data Assimilation System, level-4 (GEOS-4). More information is given on the SRB web page.
This is version 3.0 (shortwave) and 3.1 (longwave of the SRB data set. Data has been downloaded on Februay 10 2014.