Assimilation of drifter observations in primitive equation models of midlatitude ocean circulation (Articolo in rivista)

Type
Label
  • Assimilation of drifter observations in primitive equation models of midlatitude ocean circulation (Articolo in rivista) (literal)
Anno
  • 2003-01-01T00:00:00+01:00 (literal)
Alternative label
  • Ozgokmen T. 1, Molcard A. 2, Chin M. 3, Piterbarg I. L. 4, Griffa A. 2 (2003)
    Assimilation of drifter observations in primitive equation models of midlatitude ocean circulation
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Ozgokmen T. 1, Molcard A. 2, Chin M. 3, Piterbarg I. L. 4, Griffa A. 2 (literal)
Pagina inizio
  • 1 (literal)
Pagina fine
  • 21 (literal)
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  • Prodotto di collaborazione internazionele con fondi ONR (USA), EEC (MFSTEP) IF 2.992 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 108 (literal)
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  • Pubblicaz scientifica su rivista internazionale (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1 RSMAS (USA), 2 CNR ISMAR, 3 JPL (USA), 4 USC (literal)
Titolo
  • Assimilation of drifter observations in primitive equation models of midlatitude ocean circulation (literal)
Abstract
  • [1] Motivated by increases in the realism of OGCMs and the number of drifting buoys in the ocean observing system, a new Lagrangian assimilation technique is implemented in an idealized, reduced-gravity configuration of the layered primitive equation model MICOM. Using an extensive set of twin experiments, the effectiveness of the Lagrangian observation operator and of a dynamical balancing technique for corrected model variables, which is based on geostrophy and mass conservation, are explored in comparison to a conventional Pseudo-Lagrangian observation operator and an implementation of the Kalman filter method. The results clearly illustrate that the Lagrangian observation operator is superior to the Pseudo-Lagrangian in the parameter range that is relevant for typical oceanic drifter observations, and that the simple dynamical balancing technique works well for midlatitude ocean circulation. (literal)
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