What can we learn from Global Altimetry/Hydrography comparisons?

Details What can we learn from Global Altimetry/Hydrography comparisons? What can we learn from Global Altimetry/Hydrography comparisons?

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006georl..3310604g&link_type=abstract

Geophysical Research Letters, Volume 33, Issue 10, CiteID L10604

Physics

16

Oceanography: General: Ocean Data Assimilation And Reanalysis (3225), Oceanography: General: Ocean Observing Systems, Oceanography: Physical: General Circulation (1218, 1222), Oceanography: Physical: Sea Level: Variations And Mean (1222, 1225, 1641)

Scientific paper

Differences and complementarities between altimeter and hydrographic data are studied to describe the sea level and ocean circulation variations in terms of steric and non-steric contributions. Altimeter sea level anomalies (SLA) and hydrographic dynamic height anomalies (DHA) agree remarkably well. They also reveal, however, systematic large-scale differences in several areas of the Pacific and Indian oceans that are related to a barotropic, Sverdrup-like, response of the ocean to wind forcing. In addition, the use of the two data sets provides a good estimation of the partition between barotropic and baroclinic modes needed for data synthesis or assimilation studies.

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