NASA / SCIENCE PHOTO LIBRARY NASA / SCIENCE PHOTO LIBRARY
Whole Earth map based on satellite data. This is a mosaic of numerous satellite observations of the Earth. Land colours are shaded using topographic data. The land is dominated by vegetation (green) or arid land (brown) such as the deserts of North Africa. The polar regions are covered by snow and ice (white) on sea and land. Detail is obscured by the clouds (white), which were observed separately over two days. The map mostly uses MODIS (Moderate Resolution Imaging Spectroradiometer) data from June-September 2001. Antarctica was imaged by AVHRR (Advanced Very High Resolution Radiometer) data.
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