http://www.cnr.it/ontology/cnr/individuo/prodotto/ID289886

The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation (Articolo in rivista)

Type

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

Label

The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation (Articolo in rivista) (literal)

Anno

2014-01-01T00:00:00+01:00 (literal)

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

10.1016/j.dsr.2014.06.002 (literal)

Alternative label

von Appen, Wilken-Jon (1); Koszalka, Inga M. (2); Pickart, Robert S. (3); Haine, Thomas W. N. (2); Mastropole, Dana (4); Magaldi, Marcello G. (2,5); Valdimarsson, Héðinn (6); Girton, James (7); Jochumsen, Kerstin (8); Krahmann, Gerd (9) (2014)
The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation
in Deep-sea research. Part 1. Oceanographic research papers
(literal)

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

von Appen, Wilken-Jon (1); Koszalka, Inga M. (2); Pickart, Robert S. (3); Haine, Thomas W. N. (2); Mastropole, Dana (4); Magaldi, Marcello G. (2,5); Valdimarsson, Héðinn (6); Girton, James (7); Jochumsen, Kerstin (8); Krahmann, Gerd (9) (literal)

Pagina inizio

75 (literal)

Pagina fine

84 (literal)

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

http://www.sciencedirect.com/science/article/pii/S0967063714001022 (literal)

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

92 (literal)

Rivista

Deep-sea research. Part 1. Oceanographic research papers (Rivista)

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

10 (literal)

Note

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

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

(1) Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany; (2) Department of Earth and Planetary Sciences, Johns Hopkins University, Baltimore, MD, USA; (3) Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, MA, USA; (4) MIT-WHOI Joint Program in Oceanography, Cambridge/Woods Hole, MA, USA; (5) Institute of Marine Sciences, National Research Council, Lerici, La Spezia, Italy; (6) Marine Research Institute, Reykjavík, Iceland; (7) Applied Physics Laboratory, University of Washington, Seattle, WA, USA; (8) Institute of Oceanography, University of Hamburg, Hamburg, Germany; (9) GEOMAR, Helmholtz Centre for Ocean Research, Kiel, Germany (literal)

Titolo

The East Greenland Spill Jet as an important component of the Atlantic Meridional Overturning Circulation (literal)

Abstract

The recently discovered East Greenland Spill Jet is a bottom-intensified current on the upper continental slope south of Denmark Strait, transporting intermediate density water equatorward. Until now the Spill Jet has only been observed with limited summertime measurements from ships. Here we present the first year-round mooring observations demonstrating that the current is a ubiquitous feature with a volume transport similar to the well-known plume of Denmark Strait overflow water farther downslope. Using reverse particle tracking in a high-resolution numerical model, we investigate the upstream sources feeding the Spill Jet. Three main pathways are identified: particles flowing directly into the Spill Jet from the Denmark Strait sill; particles progressing southward on the East Greenland shelf that subsequently spill over the shelfbreak into the current; and ambient water from the Irminger Sea that gets entrained into the flow. The two Spill Jet pathways emanating from Denmark Strait are newly resolved, and long-term hydrographic data from the strait verifies that dense water is present far onto the Greenland shelf. Additional measurements near the southern tip of Greenland suggest that the Spill Jet ultimately merges with the deep portion of the shelfbreak current, originally thought to be a lateral circulation associated with the sub-polar gyre. Our study thus reveals a previously unrecognized significant component of the Atlantic Meridional Overturning Circulation that needs to be considered to understand fully the ocean's role in climate. (C) 2014 Elsevier Ltd. All rights reserved. (literal)

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