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Remote sensing of Gulf Stream using GEOS-3 radar altimeterRadar altimeter measurements from the GEOS-3 satellite to the ocean surface indicated the presence of expected geostrophic height differences across the the Gulf Stream. Dynamic sea surface heights were found by both editing and filtering the raw sea surface heights and then referencing these processed data to a 5 minute x 5 minute geoid. Any trend between the processed data and the geoid was removed by subtracting out a linear fit to the residuals in the open ocean. The mean current velocity of 107 + or - 29 cm/sec calculated from the dynamic heights for all orbits corresponded with velocities obtained from hydrographic methods. Also, dynamic topographic maps were produced for August, September, and October 1975. Results pointed out limitations in the accuracy of the geoid, height anomaly deteriorations due to filtering, and lack of dense time and space distribution of measurements.
Document ID
19780013794
Acquisition Source
Legacy CDMS
Document Type
Technical Publication (TP)
Authors
Leitao, C. D. (NASA Wallops Flight Center Wallops Island, VA, United States)
Huang, N. E. (EG and G Washington Anal. Serv. Center, Inc., Pocomoke City Md., United States)
Parra, C. G. (NASA Wallops Flight Center Wallops Island, VA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1978
Subject Category
Oceanography
Report/Patent Number
NASA-TP-1209
Accession Number
78N21737
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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