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An increasing CO2 sink in the Arctic Ocean due to sea-ice loss

An increasing CO2 sink in the Arctic Ocean due to sea-ice loss
An increasing CO2 sink in the Arctic Ocean due to sea-ice loss
The Arctic Ocean and adjacent continental shelf seas such as the Chukchi and Beaufort Seas are particularly sensitive to long-term change and low-frequency modes of atmosphere-ocean-sea-ice forcing. The cold, low salinity surface waters of the Canada Basin of the Arctic Ocean are undersaturated with respect to CO2 in the atmosphere and the region has the potential to take up atmospheric CO2, although presently suppressed by sea-ice cover. Undersaturated seawater CO2 conditions of the Arctic Ocean are maintained by export of water with low dissolved inorganic carbon content and modified by intense seasonal shelf primary production. Sea-ice extent and volume in the Arctic Ocean has decreased over the last few decades, and we estimate that the Arctic Ocean sink for CO2 has tripled over the last 3 decades (24 Tg yr?1 to 66 Tg yr?1) due to sea-ice retreat with future sea-ice melting enhancing air-to-sea CO2 flux by ?28% per decade.
CO2, carbon cycling, Arctic Ocean
0094-8276
L23609
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
Moran, S. Bradley
af2c953a-031c-415c-b057-0119e27b4949
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Mathis, Jeremy T.
f69fdb7f-0909-4e45-9ab8-6c73f84e9d8a
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
Moran, S. Bradley
af2c953a-031c-415c-b057-0119e27b4949
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Mathis, Jeremy T.
f69fdb7f-0909-4e45-9ab8-6c73f84e9d8a

Bates, Nicholas R., Moran, S. Bradley, Hansell, Dennis A. and Mathis, Jeremy T. (2006) An increasing CO2 sink in the Arctic Ocean due to sea-ice loss. Geophysical Research Letters, 33 (23), L23609. (doi:10.1029/2006GL027028).

Record type: Article

Abstract

The Arctic Ocean and adjacent continental shelf seas such as the Chukchi and Beaufort Seas are particularly sensitive to long-term change and low-frequency modes of atmosphere-ocean-sea-ice forcing. The cold, low salinity surface waters of the Canada Basin of the Arctic Ocean are undersaturated with respect to CO2 in the atmosphere and the region has the potential to take up atmospheric CO2, although presently suppressed by sea-ice cover. Undersaturated seawater CO2 conditions of the Arctic Ocean are maintained by export of water with low dissolved inorganic carbon content and modified by intense seasonal shelf primary production. Sea-ice extent and volume in the Arctic Ocean has decreased over the last few decades, and we estimate that the Arctic Ocean sink for CO2 has tripled over the last 3 decades (24 Tg yr?1 to 66 Tg yr?1) due to sea-ice retreat with future sea-ice melting enhancing air-to-sea CO2 flux by ?28% per decade.

Full text not available from this repository.

More information

Published date: December 2006
Keywords: CO2, carbon cycling, Arctic Ocean
Organisations: Ocean Biochemistry & Ecosystems

Identifiers

Local EPrints ID: 357438
URI: http://eprints.soton.ac.uk/id/eprint/357438
ISSN: 0094-8276
PURE UUID: a21692bf-ec5b-4c6a-b958-2fc08e46c61e

Catalogue record

Date deposited: 25 Sep 2013 12:51
Last modified: 16 Jul 2019 21:22

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