Evidence of Greenland Sea water in the Iceland Basin

Autor:	K. Anders Olsson, Marie-José Messias, Truls Johannessen, Yoshie Kasajima, Emil Jeansson
Rok vydání:	2009
Předmět:	geography geography.geographical_feature_category Transit time Structural basin humanities Geophysics Oceanography Sill TRACER population characteristics General Earth and Planetary Sciences Nordic Seas Seawater Sulphur Hexafluoride Physical geography Icelandic Low geographic locations Geology
Zdroj:	Geophysical Research Letters. 36
ISSN:	0094-8276
DOI:	10.1029/2009gl037988
Popis:	[1] 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 hexafluoride (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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e0d72bcd857bb84e1f717f5a8cc06ac2 https://doi.org/10.1029/2009gl037988 Zobrazit plný text záznamu Plný text