Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model
The long-term trend of increasing phytoplankton net primary production (NPP) in the Arctic correlates with increasing light penetration due to sea ice loss. However, recent studies suggest that enhanced stormy wind mixing may also play a significant role enhancing NPP. Here, we isolate the role of s...
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ftunivalberta:oai:era.library.ualberta.ca:983d0703-2011-4f9f-a575-18c8066af408 2024-06-23T07:49:21+00:00 Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model de la Guardia, L. Castro Garcia-Quintana, Y. Claret, M. Hu, X. Galbraith, E. D. Myers, Paul G. 2019-01-01 https://era.library.ualberta.ca/items/983d0703-2011-4f9f-a575-18c8066af408 https://doi.org/10.7939/r3-se58-nn92 English eng https://era.library.ualberta.ca/items/983d0703-2011-4f9f-a575-18c8066af408 doi:10.7939/r3-se58-nn92 ©2019. American Geophysical Union. All Rights Reserved. Arctic Ocean Biogeochemical modeling Carbon export High-frequency winds Net primary production Turbulent mixing Article (Published) 2019 ftunivalberta https://doi.org/10.7939/r3-se58-nn92 2024-06-03T03:09:00Z The long-term trend of increasing phytoplankton net primary production (NPP) in the Arctic correlates with increasing light penetration due to sea ice loss. However, recent studies suggest that enhanced stormy wind mixing may also play a significant role enhancing NPP. Here, we isolate the role of sea ice and stormy winds (hereafter high-frequency winds) using an eddy-permitting ice-ocean-biogeochemical model configured for the North Atlantic and the Arctic. In the model, the presence of high-frequency winds stimulates nutrient upwelling by producing an earlier and longer autumn-winter mixing period with deeper mixing layer. The early onset of autumn mixing results in nutrients being brought-up to near-surface waters before the light becomes the dominant limiting factor, which leads to the autumn bloom. The enhanced mixing results in higher nutrient concentrations in spring and thus a large spring bloom. The model also shows significant iron limitation in the Labrador Sea, which is intensified by high-frequency winds. The effect of sea ice loss on NPP was found to be regionally dependent on the presence of high-frequency winds. This numerical study suggests high-frequency winds play significant role increasing NPP in the Arctic and sub-Arctic by alleviating phytoplankton nutrient limitation and that the isolated effect of sea ice loss on light plays a comparatively minor role. Article in Journal/Newspaper Arctic Arctic Ocean Labrador Sea North Atlantic Phytoplankton Sea ice University of Alberta: Era - Education and Research Archive Arctic Arctic Ocean |
institution |
Open Polar |
collection |
University of Alberta: Era - Education and Research Archive |
op_collection_id |
ftunivalberta |
language |
English |
topic |
Arctic Ocean Biogeochemical modeling Carbon export High-frequency winds Net primary production Turbulent mixing |
spellingShingle |
Arctic Ocean Biogeochemical modeling Carbon export High-frequency winds Net primary production Turbulent mixing de la Guardia, L. Castro Garcia-Quintana, Y. Claret, M. Hu, X. Galbraith, E. D. Myers, Paul G. Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
topic_facet |
Arctic Ocean Biogeochemical modeling Carbon export High-frequency winds Net primary production Turbulent mixing |
description |
The long-term trend of increasing phytoplankton net primary production (NPP) in the Arctic correlates with increasing light penetration due to sea ice loss. However, recent studies suggest that enhanced stormy wind mixing may also play a significant role enhancing NPP. Here, we isolate the role of sea ice and stormy winds (hereafter high-frequency winds) using an eddy-permitting ice-ocean-biogeochemical model configured for the North Atlantic and the Arctic. In the model, the presence of high-frequency winds stimulates nutrient upwelling by producing an earlier and longer autumn-winter mixing period with deeper mixing layer. The early onset of autumn mixing results in nutrients being brought-up to near-surface waters before the light becomes the dominant limiting factor, which leads to the autumn bloom. The enhanced mixing results in higher nutrient concentrations in spring and thus a large spring bloom. The model also shows significant iron limitation in the Labrador Sea, which is intensified by high-frequency winds. The effect of sea ice loss on NPP was found to be regionally dependent on the presence of high-frequency winds. This numerical study suggests high-frequency winds play significant role increasing NPP in the Arctic and sub-Arctic by alleviating phytoplankton nutrient limitation and that the isolated effect of sea ice loss on light plays a comparatively minor role. |
format |
Article in Journal/Newspaper |
author |
de la Guardia, L. Castro Garcia-Quintana, Y. Claret, M. Hu, X. Galbraith, E. D. Myers, Paul G. |
author_facet |
de la Guardia, L. Castro Garcia-Quintana, Y. Claret, M. Hu, X. Galbraith, E. D. Myers, Paul G. |
author_sort |
de la Guardia, L. Castro |
title |
Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
title_short |
Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
title_full |
Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
title_fullStr |
Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
title_full_unstemmed |
Assessing the Role of High-Frequency Winds and Sea Ice Loss on Arctic Phytoplankton Blooms in an Ice-Ocean-Biogeochemical Model |
title_sort |
assessing the role of high-frequency winds and sea ice loss on arctic phytoplankton blooms in an ice-ocean-biogeochemical model |
publishDate |
2019 |
url |
https://era.library.ualberta.ca/items/983d0703-2011-4f9f-a575-18c8066af408 https://doi.org/10.7939/r3-se58-nn92 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Labrador Sea North Atlantic Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Labrador Sea North Atlantic Phytoplankton Sea ice |
op_relation |
https://era.library.ualberta.ca/items/983d0703-2011-4f9f-a575-18c8066af408 doi:10.7939/r3-se58-nn92 |
op_rights |
©2019. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.7939/r3-se58-nn92 |
_version_ |
1802639738604093440 |