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Horizontal and vertical removal of organic carbon in the equatorial Pacific Ocean: a mass balance assessment

Horizontal and vertical removal of organic carbon in the equatorial Pacific Ocean: a mass balance assessment
Horizontal and vertical removal of organic carbon in the equatorial Pacific Ocean: a mass balance assessment
Mass balance calculations were performed to assess the relative contributions of vertical export and horizontal advection of organic carbon and nitrogen from the central and western equatorial Pacific Ocean. The results of the analyses indicate that approximately 20% of the net community production in the region accumulates in the surface layer as suspended or dissolved organic matter. It is these fractions that have the potential to be removed from the equator via advection. The balance of net community production (approximately 80%) must be exported vertically as sinking organic particles. Using published estimates of new production in the equatorial Pacific during 1992, we estimate net organic carbon production available for removal from the equator by horizontal advection during that period to have been 0.07 – 0.18 Pg C year?1.
0967-0645
2115-2130
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Carlson, Craig A.
91c79d89-d22c-4a56-9927-06fb50d2ef59
Bates, Nicholas R.
260a5acc-58dc-4ce5-af93-9207de646d0f
Poisson, Alain
c7720020-eb13-4296-89e4-e70af214a0e5
Hansell, Dennis A.
d4f0a3af-ca20-4791-a794-e52cbd56d654
Carlson, Craig A.
91c79d89-d22c-4a56-9927-06fb50d2ef59
Bates, Nicholas R.
260a5acc-58dc-4ce5-af93-9207de646d0f
Poisson, Alain
c7720020-eb13-4296-89e4-e70af214a0e5

Hansell, Dennis A., Carlson, Craig A., Bates, Nicholas R. and Poisson, Alain (1997) Horizontal and vertical removal of organic carbon in the equatorial Pacific Ocean: a mass balance assessment. Deep Sea Research Part II: Topical Studies in Oceanography, 44 (9-10), 2115-2130. (doi:10.1016/S0967-0645(97)00021-0).

Record type: Article

Abstract

Mass balance calculations were performed to assess the relative contributions of vertical export and horizontal advection of organic carbon and nitrogen from the central and western equatorial Pacific Ocean. The results of the analyses indicate that approximately 20% of the net community production in the region accumulates in the surface layer as suspended or dissolved organic matter. It is these fractions that have the potential to be removed from the equator via advection. The balance of net community production (approximately 80%) must be exported vertically as sinking organic particles. Using published estimates of new production in the equatorial Pacific during 1992, we estimate net organic carbon production available for removal from the equator by horizontal advection during that period to have been 0.07 – 0.18 Pg C year?1.

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Published date: 1997
Organisations: Ocean Biochemistry & Ecosystems

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Local EPrints ID: 358370
URI: http://eprints.soton.ac.uk/id/eprint/358370
ISSN: 0967-0645
PURE UUID: 4626b630-a6c1-412a-aa4f-41943bcc38b9

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Date deposited: 04 Oct 2013 09:16
Last modified: 14 Mar 2024 15:03

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Contributors

Author: Dennis A. Hansell
Author: Craig A. Carlson
Author: Nicholas R. Bates
Author: Alain Poisson

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