Solar radiation enters the Earth's atmosphere with a portion being scattered by clouds and aerosols.

Processing, archiving and distributing Earth science data
at the NASA Langley Research Center

Frequently Asked Questions and Information - SRB Information

SRB Frequently Asked Questions

The NASA/GEWEX Surface Radiation Budget (SRB) project produces and archives global 3-hourly, daily, monthly/3-hourly, and monthly averages of surface and top-of-atmospheric (TOA) longwave and shortwave radiative parameters on a 1°x1° grid. Starting no later than July 1983 and extending to December 2007.

 Here are the basic steps to obtain SRB data:
1. Go to the SRB section of the ASDC's website: SRB page
2. Near the bottom of the page, you will see tabs marked:
3. Hourly Averages, Daily Averages, Monthly Averages, 3 Hourly Monthly Averages, Documentation
     Select your preferences of Averages: 3-hourly, Daily, Monthly, or 3-hourly averages:
4. Next, select the NetCDF or Binary link for the Shortwave or Longwave product.

    It will take you to a page with 3 datasets listed - please select the one you prefer.  

    This will take you to a page where you can click on the Order Data button for Earthdata Search tool


5. You will receive email with status updates and download instructions when the data is ready.


When you receive the notification that the files are ready to be downloaded. The standard time
allowed is 7 days (HTML). If you need more time to download the files please contact User Services for assistance. 

You can download a program named Panoply Data Viewer from NASA
and it will plot the SRB NetCDF files. It is very easy to use and offers options
to output (Save Image As) the plots in various formats, such as ascii, .jpeg, .gif, .pdf, .tiff and others). You can also manipulate the display in various ways.
This program is free to download and use.


There is also a software called ArcGIS that can be used to visualize NetCDF products. This software requires a license to use.

The read software and readme files (instructions for reading the data) are available on the SRB data set page. Select the “Read Software” tab for access to these files.