Accession Number : ADA327917

Title :   Monthly Maps of Sea Surface Height in the North Atlantic and Zonal Indices for the Gulf Stream Using TOPEX/Poseidon Altimeter Data.

Descriptive Note : Technical rept.,

Corporate Author : WOODS HOLE OCEANOGRAPHIC INSTITUTION MA

Personal Author(s) : Singh, Sandipa ; Kelly, Kathryn A.

PDF Url : ADA327917

Report Date : JUN 1997

Pagination or Media Count : 48

Abstract : Monthly Maps of sea surface height are constructed for the North Atlantic Ocean using TOPEX/Poseidon altimeter data. Mean sea surface height is reconstructed using a weighted combination of historical, hydrographic data and a synthetic mean obtained by fitting a Gaussian model of the Gulf Stream jet to altimeter data. The resultant mean shows increased resolution over the hydrographic mean, and incorporates recirculation information that is absent in the synthetic mean. Monthly maps, obtained by adding the mean field to altimeter sea surface height residuals, are used to derive a set of zonal indices that describe the annual cycle of meandering as well as position and strength of the Gulf Stream.

Descriptors :   *MAPS, *ALTIMETERS, *GULF STREAM, VELOCITY, OCEAN SURFACE, CYCLES, INDEXES, MEAN, STATISTICAL PROCESSES, HYDROGRAPHY, NORTH ATLANTIC OCEAN, HEIGHT, RECIRCULATION.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE