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Topography of the Earth's ocean surface

Topography of the Earth's ocean surface

E250/0066

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Credit

GFZ / SCIENCE PHOTO LIBRARY GFZ / SCIENCE PHOTO LIBRARY

Caption

Global ocean surface topography. Map of the Earth, showing the ocean surface topography. The colours depict deviation from the mean ocean surface caused by local differences in the Earth's gravit- ational field. The colours run from purple (up to 85 metres above mean) through red, orange, yellow and green, to blue (up to 105 metres below mean). Land masses are grey and the whole map is shown in shaded-relief to reveal features such as ocean floor ridges. Height deviations are measured from an artificial gravity surface, the geoid. The image was produced using altimetry data from the European ERS-1 and ERS-2 radar mapping satellites, in addition to land-based gravity measurements.

Release details

Model release not required. Property release not required.

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