Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding
In this study, we present evidence that Antarctic and Arctic sea ice act as sink for atmospheric CO2 during periods of snowmelt and surface flooding. The CO2 flux measured directly at the flooded sea ice surface (Fflood) constituted a net CO2 sink of −1.1 ± 0.9 mmol C m−2 d−1 (mean ± 1 SD), which wa...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | http://hdl.handle.net/2115/70585 https://doi.org/10.1002/2013JC009048 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/70585 2023-05-15T13:51:33+02:00 Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding Nomura, Daiki Granskog, Mats A. Assmy, Philipp Simizu, Daisuke Hashida, Gen http://hdl.handle.net/2115/70585 https://doi.org/10.1002/2013JC009048 eng eng Wiley http://hdl.handle.net/2115/70585 Journal of Geophysical Research : Oceans, 118(12): 6511-6524 http://dx.doi.org/10.1002/2013JC009048 © 2013 American Geophysical Union sea ice snow CO2 gas exchange Arctic Antarctic 660 article fthokunivhus https://doi.org/10.1002/2013JC009048 2022-11-18T01:04:56Z In this study, we present evidence that Antarctic and Arctic sea ice act as sink for atmospheric CO2 during periods of snowmelt and surface flooding. The CO2 flux measured directly at the flooded sea ice surface (Fflood) constituted a net CO2 sink of −1.1 ± 0.9 mmol C m−2 d−1 (mean ± 1 SD), which was an order of magnitude higher than the flux measured at the snow‐air surface (Fsnow) and bare ice surface (Fice). The Fsnow/Fflood ratio decreased with increasing water equivalent of snow and superimposed‐ice, suggesting that the properties of snow and superimposed‐ice formation affect the magnitude of the CO2 flux. The Fsnow/Fflood ratio ranged from 0.1 to 0.5, illustrating that 50–90% of the potential flux at the flooded surface was reduced due to the presence of snow/superimposed‐ice. Hence, snow cover properties and superimposed‐ice play an important role in the CO2 fluxes across the sea ice‐snow‐atmosphere interface. Article in Journal/Newspaper Antarc* Antarctic Arctic Sea ice Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Antarctic Arctic Journal of Geophysical Research: Oceans 118 12 6511 6524 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
sea ice snow CO2 gas exchange Arctic Antarctic 660 |
spellingShingle |
sea ice snow CO2 gas exchange Arctic Antarctic 660 Nomura, Daiki Granskog, Mats A. Assmy, Philipp Simizu, Daisuke Hashida, Gen Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
topic_facet |
sea ice snow CO2 gas exchange Arctic Antarctic 660 |
description |
In this study, we present evidence that Antarctic and Arctic sea ice act as sink for atmospheric CO2 during periods of snowmelt and surface flooding. The CO2 flux measured directly at the flooded sea ice surface (Fflood) constituted a net CO2 sink of −1.1 ± 0.9 mmol C m−2 d−1 (mean ± 1 SD), which was an order of magnitude higher than the flux measured at the snow‐air surface (Fsnow) and bare ice surface (Fice). The Fsnow/Fflood ratio decreased with increasing water equivalent of snow and superimposed‐ice, suggesting that the properties of snow and superimposed‐ice formation affect the magnitude of the CO2 flux. The Fsnow/Fflood ratio ranged from 0.1 to 0.5, illustrating that 50–90% of the potential flux at the flooded surface was reduced due to the presence of snow/superimposed‐ice. Hence, snow cover properties and superimposed‐ice play an important role in the CO2 fluxes across the sea ice‐snow‐atmosphere interface. |
format |
Article in Journal/Newspaper |
author |
Nomura, Daiki Granskog, Mats A. Assmy, Philipp Simizu, Daisuke Hashida, Gen |
author_facet |
Nomura, Daiki Granskog, Mats A. Assmy, Philipp Simizu, Daisuke Hashida, Gen |
author_sort |
Nomura, Daiki |
title |
Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
title_short |
Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
title_full |
Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
title_fullStr |
Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
title_full_unstemmed |
Arctic and Antarctic sea ice acts as a sink for atmospheric CO2 during periods of snowmelt and surface flooding |
title_sort |
arctic and antarctic sea ice acts as a sink for atmospheric co2 during periods of snowmelt and surface flooding |
publisher |
Wiley |
url |
http://hdl.handle.net/2115/70585 https://doi.org/10.1002/2013JC009048 |
geographic |
Antarctic Arctic |
geographic_facet |
Antarctic Arctic |
genre |
Antarc* Antarctic Arctic Sea ice |
genre_facet |
Antarc* Antarctic Arctic Sea ice |
op_relation |
http://hdl.handle.net/2115/70585 Journal of Geophysical Research : Oceans, 118(12): 6511-6524 http://dx.doi.org/10.1002/2013JC009048 |
op_rights |
© 2013 American Geophysical Union |
op_doi |
https://doi.org/10.1002/2013JC009048 |
container_title |
Journal of Geophysical Research: Oceans |
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118 |
container_issue |
12 |
container_start_page |
6511 |
op_container_end_page |
6524 |
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1766255452202467328 |