Accession Number : ADA308654

Title :   An Examination of the North Pacific Ocean in the Spectral Domain Using Geosat Altimeter Data and a Numerical Ocean Model.

Descriptive Note : Journal article,

Corporate Author : NAVAL RESEARCH LAB STENNIS SPACE CENTER MS OCEAN MONITORING AND PREDICTION S ECTION

Personal Author(s) : Jacobs, G. A. ; Teague, W. J. ; Mitchell, J. L. ; Hurlburt, H. E.

PDF Url : ADA308654

Report Date : 15 JAN 1996

Pagination or Media Count : 24

Abstract : The sea surface height (SSH) variations of the North Pacific ocean and the Kuroshio Extension region, in particular, are examined by frequency and wavenumber decompositions of a 1/80, six-layer primitive equation Pacific Ocean model and of the Geosat Exact Repeat Mission (ERM) data. Both data sets exhibit peaks in variability at 1 and 2 cycles per year over much of the Kuroshio Extension region. This study is restricted to these two frequencies. Annual variations of equatorial currents in both data sets are similar in both space and time, with the variations in the South Equatorial Current appearing as annual westward propagations. Annual variations in the strength of the Kuroshio Extension are manifested mainly through changes in the strength of the recirculation gyres on the southern side of the current. Annual transport maxima for the Kuroshio Extension occur around late October for both the model and Geosat.

Descriptors :   *OCEAN CURRENTS, *OCEAN MODELS, *NORTH PACIFIC OCEAN, MATHEMATICAL MODELS, EQUATORIAL REGIONS, REPRINTS, OCEAN SURFACE, ALTIMETERS, AMPLITUDE, SPECTRUM ANALYSIS, OCEAN BASINS, CORIOLIS EFFECT.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE