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Global observations of large oceanic eddies

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https://ir.library.oregonstate.edu/concern/articles/0k225c64b

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Abstract
  • 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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Citation
  • Chelton, D. B., M. G. Schlax, R. M. Samelson, and R. A. de Szoeke (2007), Global observations of large oceanic eddies, Geophys. Res. Lett., 34, L15606, doi:10.1029/2007GL030812.
Journal Title
Journal Volume
  • 34
Journal Issue/Number
  • 15
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Urheberrechts-Erklärung
Funding Statement (additional comments about funding)
  • This research was supported by contract 1206715 from the Jet Propulsion Laboratory funded as part of the NASA Ocean Surface Topography Mission and by NASA grant NNG05GN98G, ONR contract N00014-05-1-0891, and NSF grants OCE-0424516 and OCE-220471.
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ISSN
  • 0094-8276

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