http://www.cnr.it/ontology/cnr/individuo/prodotto/ID179160

On the Nature and Variability of the East Greenland Spill Jet: A Case Study in Summer 2003 (Articolo in rivista)

Type

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

Label

On the Nature and Variability of the East Greenland Spill Jet: A Case Study in Summer 2003 (Articolo in rivista) (literal)

Anno

2011-01-01T00:00:00+01:00 (literal)

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

10.1175/JPO-D-10-05004.1 (literal)

Alternative label

Magaldi, Marcello G. (1); Haine, Thomas W. N. (1); Pickart, Robert S. (2) (2011)
On the Nature and Variability of the East Greenland Spill Jet: A Case Study in Summer 2003
in Journal of physical oceanography; American Meteorological Society, Boston (Stati Uniti d'America)
(literal)

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

Magaldi, Marcello G. (1); Haine, Thomas W. N. (1); Pickart, Robert S. (2) (literal)

Pagina inizio

2307 (literal)

Pagina fine

2327 (literal)

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

http://journals.ametsoc.org/doi/abs/10.1175/JPO-D-10-05004.1 (literal)

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

41 (literal)

Rivista

Journal of physical oceanography (Rivista)

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

21 (literal)

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

12 (literal)

Note

Google Scholar (literal)
ISI Web of Science (WOS) (literal)
Scopu (literal)

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

(1) Johns Hopkins Univ, Dept Earth & Planetary Sci, Baltimore, MD 21218 USA (2) Woods Hole Oceanog Inst, Woods Hole, MA 02543 USA (literal)

Titolo

On the Nature and Variability of the East Greenland Spill Jet: A Case Study in Summer 2003 (literal)

Abstract

Results from a high-resolution (~ 2 km) numerical simulation of the Irminger Basin during summer 2003 are presented. The focus is on the East Greenland Spill Jet, a recently discovered component of the circulation in the basin. The simulation compares well with observations of surface fields, the Denmark Strait overflow (DSO), and the hydrographic structure of typical sections in the basin. The model reveals new aspects of the circulation on scales of O(0.1-10) days and O(1-100) km. The model Spill Jet results from the cascade of dense waters over the East Greenland shelf. Spilling can occur in various locations southwest of the strait, and it is present throughout the simulation but exhibits large variations on periods of 0(0.1-10) days. The Spill Jet sometimes cannot be distinguished in the velocity field from surface eddies or from the DSO. The vorticity structure of the jet confirms its unstable nature with peak relative and tilting vorticity terms reaching twice the planetary vorticity term. The average model Spill Jet transport is 4.9 +/- 1.7 Sv (1 Sv equivalent to 10^6 m3 s-1) equatorward, about 2 and 1/2 times larger than has been previously reported from a single ship transect in August 2001. Kinematic analysis of the model results suggests two different types of spilling events. In the first case (type I), a local perturbation results in dense waters descending over the shelf break into the Irminger Basin. In the second case (type II) surface cyclones associated with DSO deep domes initiate the spilling process. During summer 2003, more than half of the largest Spill Jet transport values are of type II. (literal)

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