Surface Radiation Budget (SRB)

1983 to 1995 global data set of surface shortwave (SW) and longwave (LW) radiative parameters on a 1°x1° grid are available.  Both SW and LW fluxes were computed with two algorithms: a primary algorithm and a quality-check algorithm. Cloud properties used in the project were derived on a 1° resolution using ISCCP pixel-level (DX) data sets. Other meteorological inputs, namely, the temperature and humidity profiles, were taken from the GEOS-1 reanalysis product of the Global Modeling and Assimilation Office at NASA/Goddard Space Flight Center. Ozone data were obtained from the Total Ozone Mapping Spectrometer (TOMS) archives. Three of the four algorithms provide results on a 3-hourly temporal resolution. The quality-check SW algorithm provides daily values only. All data sets were processed into daily and monthly averages for use in scientific studies. All except quality-check SW data were also processed into monthly/3-hourly averages.

The data, read files and read software are available through the NASA/Langley Atmospheric Science Data Center at: http://eosweb.larc.nasa.gov/PRODOCS/srb/table_srb.html. More information about the data set release can be obtained by contacting Dr. Paul Stackhouse at NASA Langley Research Center.

Shortwave radiation parameters for March 1985-December 1988 (SRB Version 1.1) are available on CD-ROM, tape and via FTP at the Langley DAAC.

SRB data for July 1983 to August 1994, based on ISCCP D1 Observations is available upon request at  srb@atmos.umd.edu

Real-time GEWEX Continental Scale International Project (GCIP) Surface Radiation Budget Data are available at Global Land Cover Facility.

Data from the Clouds and the Earth's Radiant Energy System (CERES) Program/Atmospheric Radiation Measurement (ARM) Program/GEWEX Experiment (CAGEX) are a validation source for SRB. CAGEX is an ongoing campaign that provides calculated radiative fluxes, input data, and validating measurements over the ARM Cloud and Radiation Testbed (CART) site in Oklahoma. For more information see the CAGEX Home Page.

Note:  CAGEX is slowly being replaced by the new CERES/ARM Validation Experiment (CAVE) web site. CAVE has surface observations at 44 different locations around the globe with the latest collocated TOA CERES broadband radiation observations. You may access CAVE at: http://www-cave.larc.nasa.gov/cave/.