The images that are found in this gallery are generated on a continuous (daily) basis using the data from the
GES DISC DAAC
Data Pool ftp server.
(Learn more about the Data Pool)
Improvements to this gallery are ongoing, and new images are added daily. Comments/Questions?
Please let us know:
help-disc@listserv.gsfc.nasa.gov
General notes on AIRS
Global Browse image generation:
- The AIRS
Global Browse images are generated using IDL.
- First, separate daytime and nighttime only granules by examining the "DayNight" flag
in the XML support file.
- Second, register data onto a 0.09° equal angle grid (or 4000x2000 pixels, roughly
10km at equator). AIRS observations are painted over the grid
points by taking the AIRS footprint
sizes into account. Later granules are always on top and only observed values are kept in the grid.
- Finally, resample 0.09° grid to a coarser 0.35° equal angle grid such that
the dimensions of final product are 1024x512 pixels (roughly 39km
at the equator), more manageable for web viewing.
- The channel numbers for the AIRS RGB-visible composite are:
- Red: 0.71-0.93 micron
- Green: 0.58-0.68 micron
- Blue: 0.40-0.44 micron
- The channel numbers for the AIRS RGB-thermal composite are:
- Red: 11.0 micron
- Green: 8.0 micron
- Blue: 4.0 micron
Go back to the Global Browse home page
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