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GEOS-3 ocean current investigation using radar altimeter profiling (1978)

Parra, C. G. ; Leitao, C. D. ; Huang, N. E.

In: CASI

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Publication Date: 2019-06-27

Description: Both quasi-stationary and dynamic departures from the marine geoid were successfully detected using altitude measurements from the GEOS-3 radar altimeter. The quasi-stationary departures are observed either as elevation changes in single pass profiles across the Gulf Stream or at the crowding of contour lines at the western and northern areas of topographic maps generated using altimeter data spanning one month or longer. Dynamic features such as current meandering and spawned eddies can be monitored by comparing monthly mean maps. Comparison of altimeter inferred eddies with IR detected thermal rings indicates agreement of the two techniques. Estimates of current velocity are made using derived slope estimates in conjunction with the geostrophic equation.

Keywords: OCEANOGRAPHY

Type: NASA-TM-73280

Format: application/pdf

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