The University of Southampton
University of Southampton Institutional Repository

Temperature signature of high latitude Atlantic boundary currents revealed by marine mammal-borne sensor and Argo data

Temperature signature of high latitude Atlantic boundary currents revealed by marine mammal-borne sensor and Argo data
Temperature signature of high latitude Atlantic boundary currents revealed by marine mammal-borne sensor and Argo data
Results from the development and analysis of a novel temperature dataset for the high latitude North-West Atlantic are presented. The new 1° gridded dataset (“ATLAS”) has been produced from about 13,000 Argo and 48,000 marine mammal (hooded seal, harp seal, grey seal and beluga) profiles spanning 2004–8. These data sources are highly complementary as marine mammals greatly enhance shelf region coverage where Argo floats are absent. ATLAS reveals distinctive boundary current related temperature minima in the Labrador Sea (?1.1°C) and at the east Greenland coast (1.8°C), largely absent in the widely-used Levitus'09 and EN3v2a datasets. The ATLAS 0–500 m average temperature is lower than Levitus'09 and EN3v2a by up to 3°C locally. Differences are strongest from 0–300 m and persist at reduced amplitude from 300–500 m. Our results clearly reveal the value of marine mammal-borne sensors for a reliable description of the North-West Atlantic at a time of rapid change.
0094-8276
L15601
Grist, Jeremy P.
ffea99af-f811-436f-9bac-5b02ba6dc00f
Josey, Simon A.
2252ab7f-5cd2-49fd-a951-aece44553d93
Boehme, Lars
48120921-5681-4684-85de-660dd50c2651
Meredith, Michael P.
25fd5f1c-f3ed-40a2-af59-5a7074a25fcd
Davidson, Fraser J.M.
e67271db-356b-42a0-b32a-a328bea8b7fd
Stenson, Garry B.
9f18a65b-346c-427e-90c6-21e9c03d753f
Hammill, Mike O.
03d2f588-8af6-4392-b7fe-7fd61aa9f5e5
Grist, Jeremy P.
ffea99af-f811-436f-9bac-5b02ba6dc00f
Josey, Simon A.
2252ab7f-5cd2-49fd-a951-aece44553d93
Boehme, Lars
48120921-5681-4684-85de-660dd50c2651
Meredith, Michael P.
25fd5f1c-f3ed-40a2-af59-5a7074a25fcd
Davidson, Fraser J.M.
e67271db-356b-42a0-b32a-a328bea8b7fd
Stenson, Garry B.
9f18a65b-346c-427e-90c6-21e9c03d753f
Hammill, Mike O.
03d2f588-8af6-4392-b7fe-7fd61aa9f5e5

Grist, Jeremy P., Josey, Simon A., Boehme, Lars, Meredith, Michael P., Davidson, Fraser J.M., Stenson, Garry B. and Hammill, Mike O. (2011) Temperature signature of high latitude Atlantic boundary currents revealed by marine mammal-borne sensor and Argo data. Geophysical Research Letters, 38 (15), L15601. (doi:10.1029/2011GL048204).

Record type: Article

Abstract

Results from the development and analysis of a novel temperature dataset for the high latitude North-West Atlantic are presented. The new 1° gridded dataset (“ATLAS”) has been produced from about 13,000 Argo and 48,000 marine mammal (hooded seal, harp seal, grey seal and beluga) profiles spanning 2004–8. These data sources are highly complementary as marine mammals greatly enhance shelf region coverage where Argo floats are absent. ATLAS reveals distinctive boundary current related temperature minima in the Labrador Sea (?1.1°C) and at the east Greenland coast (1.8°C), largely absent in the widely-used Levitus'09 and EN3v2a datasets. The ATLAS 0–500 m average temperature is lower than Levitus'09 and EN3v2a by up to 3°C locally. Differences are strongest from 0–300 m and persist at reduced amplitude from 300–500 m. Our results clearly reveal the value of marine mammal-borne sensors for a reliable description of the North-West Atlantic at a time of rapid change.

This record has no associated files available for download.

More information

Published date: 2011
Organisations: Marine Systems Modelling, Marine Physics and Ocean Climate

Identifiers

Local EPrints ID: 195595
URI: http://eprints.soton.ac.uk/id/eprint/195595
ISSN: 0094-8276
PURE UUID: 5fead5e0-0fa9-4107-a238-93678605deb8

Catalogue record

Date deposited: 23 Aug 2011 13:07
Last modified: 14 Mar 2024 04:05

Export record

Altmetrics

Contributors

Author: Jeremy P. Grist
Author: Simon A. Josey
Author: Lars Boehme
Author: Michael P. Meredith
Author: Fraser J.M. Davidson
Author: Garry B. Stenson
Author: Mike O. Hammill

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×