Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective
Both remote sensing and numerical models revealed increasing net primary production (NPP) in the Arctic Ocean due to declining sea ice cover and increasing ice-free days. The NPP increases in some parts of the Arctic Ocean are also hypothesized to link to high wind (>10 m/s) and upwelling-fav...
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Online Access: | http://dx.doi.org/10.3389/fmars.2023.1065006 https://www.frontiersin.org/articles/10.3389/fmars.2023.1065006/full |
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crfrontiers:10.3389/fmars.2023.1065006 2024-02-11T10:00:50+01:00 Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective Xu, Anqi Jin, Meibing Wu, Yingxu Qi, Di 2023 http://dx.doi.org/10.3389/fmars.2023.1065006 https://www.frontiersin.org/articles/10.3389/fmars.2023.1065006/full unknown Frontiers Media SA https://creativecommons.org/licenses/by/4.0/ Frontiers in Marine Science volume 10 ISSN 2296-7745 Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography journal-article 2023 crfrontiers https://doi.org/10.3389/fmars.2023.1065006 2024-01-26T10:05:08Z Both remote sensing and numerical models revealed increasing net primary production (NPP) in the Arctic Ocean due to declining sea ice cover and increasing ice-free days. The NPP increases in some parts of the Arctic Ocean are also hypothesized to link to high wind (>10 m/s) and upwelling-favorable wind, however, the mechanism remains unclear. Using Regional Arctic System Model (RASM) to investigate the relationship between NPP and wind, we found that the seasonal NPP are statistically correlated to high wind frequency (HWF) in the Barents (Br) and Southern Chukchi Seas (SC) due to their high subsurface nutrients in the 20-50 m layer. Five high and five low HWF years along a zonally averaged section were chosen to understand the spatial variation of the correlation between HWF, NO 3 , and NPP in the SC. During high HWF years, the decrease in subsurface NO 3 exceeds its increase in surface, implying the utilization by biological productivity. A more positive response of NPP to HWF in north SC than south was also found because more subsurface nutrients were entrained into the surface by higher HWF. The NPP are statistically correlated to easterly wind frequency (EWF) in the Beaufort and Canada Basin (BC), where the stronger EWF-induced upwelling could bring up higher nutrients from >100 m depth. While the nutrients and NPP in the south BC are normally higher than in the north, an increase of EWF can further enhance the nutrients and NPP in the south much more than those in the north. Differences between five high and five low EWF years reveal that the increase of EWF is most important around the shelf break region, where NO 3 and NPP are also most enhanced. The enhancement of NPP by higher HWF in the Br and SC is less than that by higher ice-free days ratio (IFR), while the enhancement of NPP by higher EWF in BC is of similar magnitude to that by IFR. As the trend of declining sea ice cover continues, it’s necessary to advance our understanding on the nutrients and NPP response to changing wind ... Article in Journal/Newspaper Arctic Arctic Ocean canada basin Chukchi Sea ice Frontiers (Publisher) Arctic Arctic Ocean Canada Frontiers in Marine Science 10 |
institution |
Open Polar |
collection |
Frontiers (Publisher) |
op_collection_id |
crfrontiers |
language |
unknown |
topic |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
spellingShingle |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography Xu, Anqi Jin, Meibing Wu, Yingxu Qi, Di Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
topic_facet |
Ocean Engineering Water Science and Technology Aquatic Science Global and Planetary Change Oceanography |
description |
Both remote sensing and numerical models revealed increasing net primary production (NPP) in the Arctic Ocean due to declining sea ice cover and increasing ice-free days. The NPP increases in some parts of the Arctic Ocean are also hypothesized to link to high wind (>10 m/s) and upwelling-favorable wind, however, the mechanism remains unclear. Using Regional Arctic System Model (RASM) to investigate the relationship between NPP and wind, we found that the seasonal NPP are statistically correlated to high wind frequency (HWF) in the Barents (Br) and Southern Chukchi Seas (SC) due to their high subsurface nutrients in the 20-50 m layer. Five high and five low HWF years along a zonally averaged section were chosen to understand the spatial variation of the correlation between HWF, NO 3 , and NPP in the SC. During high HWF years, the decrease in subsurface NO 3 exceeds its increase in surface, implying the utilization by biological productivity. A more positive response of NPP to HWF in north SC than south was also found because more subsurface nutrients were entrained into the surface by higher HWF. The NPP are statistically correlated to easterly wind frequency (EWF) in the Beaufort and Canada Basin (BC), where the stronger EWF-induced upwelling could bring up higher nutrients from >100 m depth. While the nutrients and NPP in the south BC are normally higher than in the north, an increase of EWF can further enhance the nutrients and NPP in the south much more than those in the north. Differences between five high and five low EWF years reveal that the increase of EWF is most important around the shelf break region, where NO 3 and NPP are also most enhanced. The enhancement of NPP by higher HWF in the Br and SC is less than that by higher ice-free days ratio (IFR), while the enhancement of NPP by higher EWF in BC is of similar magnitude to that by IFR. As the trend of declining sea ice cover continues, it’s necessary to advance our understanding on the nutrients and NPP response to changing wind ... |
format |
Article in Journal/Newspaper |
author |
Xu, Anqi Jin, Meibing Wu, Yingxu Qi, Di |
author_facet |
Xu, Anqi Jin, Meibing Wu, Yingxu Qi, Di |
author_sort |
Xu, Anqi |
title |
Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
title_short |
Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
title_full |
Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
title_fullStr |
Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
title_full_unstemmed |
Response of nutrients and primary production to high wind and upwelling-favorable wind in the Arctic Ocean: A modeling perspective |
title_sort |
response of nutrients and primary production to high wind and upwelling-favorable wind in the arctic ocean: a modeling perspective |
publisher |
Frontiers Media SA |
publishDate |
2023 |
url |
http://dx.doi.org/10.3389/fmars.2023.1065006 https://www.frontiersin.org/articles/10.3389/fmars.2023.1065006/full |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean canada basin Chukchi Sea ice |
genre_facet |
Arctic Arctic Ocean canada basin Chukchi Sea ice |
op_source |
Frontiers in Marine Science volume 10 ISSN 2296-7745 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3389/fmars.2023.1065006 |
container_title |
Frontiers in Marine Science |
container_volume |
10 |
_version_ |
1790596556111478784 |