Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt
Projections of climate impacts on marine net primary production (NPP) are reliant on Earth System Models (ESMs) that do not contain dynamic ice sheets. We assess the impact of potential Greenland ice sheet meltwater on projections of 21st century NPP using idealized ESM simulations. Under an extreme...
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ftinraparis:oai:prodinra.inra.fr:487629 2023-05-15T16:24:42+02:00 Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt Kwiatkowski, Lester Naar, Joseph Bopp, Laurent Aumont, Olivier Defrance, Dimitri Couespel, Damien 2019 application/pdf http://prodinra.inra.fr/ft/191B9C65-B0A3-44D4-ABC4-ECDBE829885C http://prodinra.inra.fr/record/487629 eng eng https://creativecommons.org/licenses/by/3.0/ CC-BY Geophysical Research Letters 20 (46), 11347-11357. (2019) Biologie végétale Vegetal Biology ARTICLE 2019 ftinraparis 2020-01-07T23:25:41Z Projections of climate impacts on marine net primary production (NPP) are reliant on Earth System Models (ESMs) that do not contain dynamic ice sheets. We assess the impact of potential Greenland ice sheet meltwater on projections of 21st century NPP using idealized ESM simulations. Under an extreme melt scenario, corresponding to 21st century sea level rise close to 2 m, Greenland meltwater amplified the decline in global NPP from a decrease of 3.2 PgC/yr to a decrease of 4.5 PgC/yr, relative to present. This additional reduction in NPP predominately occurs in the North Atlantic subtropical and subpolar gyres, as well as Atlantic eastern boundary upwelling systems. Accelerated NPP declines are the result of both surface freshening and reductions in upwelling-favorable winds enhancing phytoplankton nutrient limitation. Our findings indicate that including a dynamic Greenland ice sheet in ESMs could have large impacts on projections of future ocean circulation and biogeochemistry. Article in Journal/Newspaper Greenland Ice Sheet North Atlantic Institut National de la Recherche Agronomique: ProdINRA Greenland |
institution |
Open Polar |
collection |
Institut National de la Recherche Agronomique: ProdINRA |
op_collection_id |
ftinraparis |
language |
English |
topic |
Biologie végétale Vegetal Biology |
spellingShingle |
Biologie végétale Vegetal Biology Kwiatkowski, Lester Naar, Joseph Bopp, Laurent Aumont, Olivier Defrance, Dimitri Couespel, Damien Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
topic_facet |
Biologie végétale Vegetal Biology |
description |
Projections of climate impacts on marine net primary production (NPP) are reliant on Earth System Models (ESMs) that do not contain dynamic ice sheets. We assess the impact of potential Greenland ice sheet meltwater on projections of 21st century NPP using idealized ESM simulations. Under an extreme melt scenario, corresponding to 21st century sea level rise close to 2 m, Greenland meltwater amplified the decline in global NPP from a decrease of 3.2 PgC/yr to a decrease of 4.5 PgC/yr, relative to present. This additional reduction in NPP predominately occurs in the North Atlantic subtropical and subpolar gyres, as well as Atlantic eastern boundary upwelling systems. Accelerated NPP declines are the result of both surface freshening and reductions in upwelling-favorable winds enhancing phytoplankton nutrient limitation. Our findings indicate that including a dynamic Greenland ice sheet in ESMs could have large impacts on projections of future ocean circulation and biogeochemistry. |
format |
Article in Journal/Newspaper |
author |
Kwiatkowski, Lester Naar, Joseph Bopp, Laurent Aumont, Olivier Defrance, Dimitri Couespel, Damien |
author_facet |
Kwiatkowski, Lester Naar, Joseph Bopp, Laurent Aumont, Olivier Defrance, Dimitri Couespel, Damien |
author_sort |
Kwiatkowski, Lester |
title |
Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
title_short |
Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
title_full |
Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
title_fullStr |
Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
title_full_unstemmed |
Decline in Atlantic Primary Production Accelerated by Greenland Ice Sheet Melt |
title_sort |
decline in atlantic primary production accelerated by greenland ice sheet melt |
publishDate |
2019 |
url |
http://prodinra.inra.fr/ft/191B9C65-B0A3-44D4-ABC4-ECDBE829885C http://prodinra.inra.fr/record/487629 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Ice Sheet North Atlantic |
genre_facet |
Greenland Ice Sheet North Atlantic |
op_source |
Geophysical Research Letters 20 (46), 11347-11357. (2019) |
op_rights |
https://creativecommons.org/licenses/by/3.0/ |
op_rightsnorm |
CC-BY |
_version_ |
1766013259760009216 |