Dynamics of wind-forced coherent anticyclones in the open ocean (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Dynamics of wind-forced coherent anticyclones in the open ocean (Articolo in rivista) (literal)

Anno

• 2009-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1029/2009JC005388 (literal)

Alternative label

• Koszalka I; Bracco A; McWiliams JC; Provenzale A (2009)
  Dynamics of wind-forced coherent anticyclones in the open ocean
  in Journal of geophysical research
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• Koszalka I; Bracco A; McWiliams JC; Provenzale A (literal)

Pagina inizio

• C08011 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://www.agu.org/pubs/crossref/2009/2009JC005388.shtml (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 114 (literal)

Rivista

• Journal of geophysical research (Rivista)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali

• 14 (literal)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• Koszalka, Provenzale: ISAC-CNR, Corso Fiume 4, Torino, Italy Bracco: School of Earth and Atmospheric Science and Center for Nonlinear Science, Georgia Institute of Technology, Atlanta, Georgia, USA McWilliams: Institute of Geophysics and Planetary Physics and Department of Atmospheric and Oceanic Sciences, University of California, Los Angeles, California, USA (literal)

Titolo

• Dynamics of wind-forced coherent anticyclones in the open ocean (literal)

Abstract

• We numerically study the dynamics of coherent anticyclonic eddies in the ocean interior. For the hydrostatic, rotating, stably stratified turbulence we use a high-resolution primitive equation model forced by small-scale winds in an idealized configuration. Many properties of the horizontal motions are found to be similar to those of two-dimensional and quasi-geostrophic turbulence. Major differences are a strong cyclone-anticyclone asymmetry linked to the straining field exerted by vortex Rossby waves, which is also found in shallow water flows, and the complex structure of the vertical velocity field, which we analyze in detail. Locally, the motion can become strongly ageostrophic, and vertical velocities associated with vortices can reach magnitudes and levels of spatial complexity akin to those reported for frontal regions. Transport and mixing properties of the flow field are further investigated by analyzing Lagrangian trajectories. Particles released in the pycnocline undergo large vertical excursions because of the vertical velocities associated to the vortices, with potentially important consequences for marine ecosystem dynamics. (literal)

Prodotto di

• Modellistica climatica, ricostruzione del clima e delle sue variazioni e valutazione degli impatti (TA.P02.011.004) (Modulo)
• Climatologia dinamica (TA.P02.012.002) (Modulo)
• Institute of atmospheric sciences and climate (ISAC) (Istituto)

Autore CNR

• ANTONELLO PROVENZALE (Persona)

Insieme di parole chiave

• Keywords of "Dynamics of wind-forced coherent anticyclones in the open ocean" (Insieme di parole chiave)

Incoming links:

Prodotto

• Institute of atmospheric sciences and climate (ISAC) (Istituto)
• Modellistica climatica, ricostruzione del clima e delle sue variazioni e valutazione degli impatti (TA.P02.011.004) (Modulo)
• Climatologia dinamica (TA.P02.012.002) (Modulo)

Autore CNR di

• ANTONELLO PROVENZALE (Persona)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of geophysical research (Rivista)

Insieme di parole chiave di

• Keywords of "Dynamics of wind-forced coherent anticyclones in the open ocean" (Insieme di parole chiave)