AIRS Daily Earth Maps from Space
Maps of AIRS Data Granules
granule_maps
The AIRS instrument sweeps along its orbit gathering data. The data is then sectioned into pieces, and each piece is called a "granule". Each AIRS data granule is roughly 2250 x 1650 km, or 1400 x 1025 miles.
The Aqua satellite on which AIRS flies makes two passes per day over the globe. On one pass the satellite is moving south to north (ascending), and on the other it is moving north to south (descending). The four granule maps below are updated two times each day. AIRS data users use maps like these to request their data from the data servers.
North Polar Swaths
