TOM VAN SANT, GEOSPHERE PROJECT / PLANETARY VISIONS / SCIENCE PHOTO LIBRARY TOM VAN SANT, GEOSPHERE PROJECT / PLANETARY VISIONS / SCIENCE PHOTO LIBRARY
Not for poster use.
Earth from space. Cloudless satellite image of the Earth, centred on Africa. North is at top. The colours of the land approximate to natural tones, whilst blue colour-codes represent ocean topography. Other regions which are visible include Europe (at upper centre) and southwest Asia (at upper right). North Africa largely consists of the Sahara desert. This image was compiled from data acquired by NOAA weather satellites over eleven ten-day periods at an altitude of 833 kilometres to give a resolution of 1 kilometre.
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