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The MODIS Rapid Response System generates complete mosaic images of the Arctic every day
at 4km, 2km, 1km resolutions. The mosaic is composed of smaller image tiles, which are available individually at 250 m, 500 m, 1 km, 2 km, and 4 km resolutions.
A large collection of MODIS Rapid response imagery can be found in the Earth Observatory's Natural Hazards section, with captions that provide pertinent information about each image.