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Global mean sea surface height from altimetry
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- Title Global mean sea surface height from altimetry
- Released 15/09/2005 2:53 pm
- Copyright ESA
Global mean sea surface height derived from radar altimeter data. The radar beam from the satellite scans the ocean surface, detecting variations in relief of up to 80 metres in places. Ocean relief, which is stable, is shaped by the geoid - the surface normal to the direction of the Earth's gravity field. The scale here ranges from purple (-80 metres) to red brown (+80 metres).