Evidence of greenland sea water in the Iceland basin

Jeansson, Emil, Olsson, K. Anders, Messias, Marie-Jose, Kasajima, Yoshie and Johannessen, Truls (2009) Evidence of greenland sea water in the Iceland basin. Geophysical Research Letters, 36 (9). ISSN 1944-8007

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Abstract

This study evaluates the presence of intermediate water from the Greenland Sea in the Iceland Basin deduced from the observed excess of the tracer sulphur hexafiuoride (SF6), released in the central Greenland Sea in 1996. The large tracer release experiment has served a unique opportunity to follow the spread of Greenland Sea intermediate water to the adjacent basins of the Nordic Seas and to the areas bordering this region. In the present study, using data from May-June 2001, the released tracer was detected at the sill in the Faroe Bank Channel and at several locations in the Iceland Basin of the North Atlantic, just downstream the sill and southeast of Iceland. The estimated excess of the released tracer at the Icelandic slope combined with reported values of the volume flow at this location suggest an annual transport rate of approximately 1.4 kg excess SF6. The results suggest an upper transit time from the central Greenland Sea to the area southeast of Iceland of approximately 4 years.

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Rosie Cullington
Date Deposited: 23 Feb 2011 10:04
Last Modified: 05 Nov 2019 10:30
URI: https://ueaeprints.uea.ac.uk/id/eprint/24423
DOI: 10.1029/2009GL037988

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