Global observations of large oceanic eddies
Ten years of sea‐surface height (SSH) fields constructed from the merged TOPEX/Poseidon (T/P) and ERS‐1/2 altimeter datasets are analyzed to investigate mesoscale variability in the global ocean. The higher resolution of the merged dataset reveals that more than 50% of the variability over much of t...
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Published in | Geophysical research letters Vol. 34; no. 15; pp. L15606 - n/a |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
Washington, DC
American Geophysical Union
01.08.2007
Blackwell Publishing Ltd |
Subjects | |
Online Access | Get full text |
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Summary: | Ten years of sea‐surface height (SSH) fields constructed from the merged TOPEX/Poseidon (T/P) and ERS‐1/2 altimeter datasets are analyzed to investigate mesoscale variability in the global ocean. The higher resolution of the merged dataset reveals that more than 50% of the variability over much of the World Ocean is accounted for by eddies with amplitudes of 5–25 cm and diameters of 100–200 km. These eddies propagate nearly due west at approximately the phase speed of nondispersive baroclinic Rossby waves with preferences for slight poleward and equatorward deflection of cyclonic and anticyclonic eddies, respectively. The vast majority of the eddies are found to be nonlinear. |
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Bibliography: | ArticleID:2007GL030812 ark:/67375/WNG-WML6SP6N-T istex:F8E7FFD60D3B67CEABEA0048A251D73EAC719E2D ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0094-8276 1944-8007 |
DOI: | 10.1029/2007GL030812 |