World map, satellite image. This global map combines data from four satellite systems to show a cloud-free Earth with changes from 2009 also shown. Th
World map, satellite image. This global map combines data from four satellite systems to show a cloud-free Earth with changes from 2009 also shown. The Earth's land surface is shown by thousands of images taken over a two-year period by the AVHRR instrument on NOAA's Polar Orbiter weather satellites. Sea data is from the CZCS instrument on NASA's Nimbus 7 satellite, showing variations in ocean colour. Polar sea ice is shown by the OLS camera on the US Air Force's DMSP satellite. The changes seen in 2009 are included using NASA MODIS imagery. Areas undergoing rapid change include the Aral Sea, the Caspian Sea and the Antarctic.
Size: 5929px × 2965px
Photo credit: © PLANETARY VISIONS LTD/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No
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