Bio-physical feedbacks in the Arctic Ocean using an Earth system model
An Earth System model with an oceanic biogeochemical component is shown to reproduce accurately the seasonal course of sea-ice and chlorophyll distribution in the Arctic region. It is argued that the phytoplankton blooms that occur concomitantly with the ice retreat along the Arctic coastal shelves...
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ftsouthampton:oai:eprints.soton.ac.uk:71842 2023-07-30T03:59:45+02:00 Bio-physical feedbacks in the Arctic Ocean using an Earth system model Lengaigne, Matthieu Madec, Gurvan Bopp, Laurent Menkes, Christophe Aumont, Olivier Cadule, Patricia 2010 https://eprints.soton.ac.uk/71842/ http://www.agu.org/pubs/crossref/2009/2009GL040145.shtml unknown Lengaigne, Matthieu, Madec, Gurvan, Bopp, Laurent, Menkes, Christophe, Aumont, Olivier and Cadule, Patricia (2010) Bio-physical feedbacks in the Arctic Ocean using an Earth system model. Geophysical Research Letters, 36, L21602. (doi:10.1029/2009GL040145 <http://dx.doi.org/10.1029/2009GL040145>). Article PeerReviewed 2010 ftsouthampton https://doi.org/10.1029/2009GL040145 2023-07-09T21:08:15Z An Earth System model with an oceanic biogeochemical component is shown to reproduce accurately the seasonal course of sea-ice and chlorophyll distribution in the Arctic region. It is argued that the phytoplankton blooms that occur concomitantly with the ice retreat along the Arctic coastal shelves in spring and summer strongly impact the Arctic climate and improve the sea-ice distribution in the model. Indeed, these blooms modify the vertical distribution of radiant heating and trap the penetrating solar heat flux at the surface in these regions. The resulting surface warming triggers a reduction of sea-ice thickness and concentration. This reduction increases the solar energy penetrating into the ocean, therefore providing a positive feedback that further amplifies the direct biological warming. The increased melting, precipitation and runoff related to these bio-physical feedbacks freshen the Arctic Ocean and the Greenland Sea, provoking a slight slowdown of the overturning circulation. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Greenland Greenland Sea Phytoplankton Sea ice University of Southampton: e-Prints Soton Arctic Arctic Ocean Greenland Geophysical Research Letters 36 21 |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
An Earth System model with an oceanic biogeochemical component is shown to reproduce accurately the seasonal course of sea-ice and chlorophyll distribution in the Arctic region. It is argued that the phytoplankton blooms that occur concomitantly with the ice retreat along the Arctic coastal shelves in spring and summer strongly impact the Arctic climate and improve the sea-ice distribution in the model. Indeed, these blooms modify the vertical distribution of radiant heating and trap the penetrating solar heat flux at the surface in these regions. The resulting surface warming triggers a reduction of sea-ice thickness and concentration. This reduction increases the solar energy penetrating into the ocean, therefore providing a positive feedback that further amplifies the direct biological warming. The increased melting, precipitation and runoff related to these bio-physical feedbacks freshen the Arctic Ocean and the Greenland Sea, provoking a slight slowdown of the overturning circulation. |
format |
Article in Journal/Newspaper |
author |
Lengaigne, Matthieu Madec, Gurvan Bopp, Laurent Menkes, Christophe Aumont, Olivier Cadule, Patricia |
spellingShingle |
Lengaigne, Matthieu Madec, Gurvan Bopp, Laurent Menkes, Christophe Aumont, Olivier Cadule, Patricia Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
author_facet |
Lengaigne, Matthieu Madec, Gurvan Bopp, Laurent Menkes, Christophe Aumont, Olivier Cadule, Patricia |
author_sort |
Lengaigne, Matthieu |
title |
Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
title_short |
Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
title_full |
Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
title_fullStr |
Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
title_full_unstemmed |
Bio-physical feedbacks in the Arctic Ocean using an Earth system model |
title_sort |
bio-physical feedbacks in the arctic ocean using an earth system model |
publishDate |
2010 |
url |
https://eprints.soton.ac.uk/71842/ http://www.agu.org/pubs/crossref/2009/2009GL040145.shtml |
geographic |
Arctic Arctic Ocean Greenland |
geographic_facet |
Arctic Arctic Ocean Greenland |
genre |
Arctic Arctic Arctic Ocean Greenland Greenland Sea Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Arctic Ocean Greenland Greenland Sea Phytoplankton Sea ice |
op_relation |
Lengaigne, Matthieu, Madec, Gurvan, Bopp, Laurent, Menkes, Christophe, Aumont, Olivier and Cadule, Patricia (2010) Bio-physical feedbacks in the Arctic Ocean using an Earth system model. Geophysical Research Letters, 36, L21602. (doi:10.1029/2009GL040145 <http://dx.doi.org/10.1029/2009GL040145>). |
op_doi |
https://doi.org/10.1029/2009GL040145 |
container_title |
Geophysical Research Letters |
container_volume |
36 |
container_issue |
21 |
_version_ |
1772810555636056064 |