Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017
In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, collecting measurements in the upper 250 m of Amundsen Basin, the Gakkel Ridge, Na...
Published in: | Journal of Geophysical Research: Oceans |
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Online Access: | https://hdl.handle.net/11250/2766244 https://doi.org/10.1029/2019JC015608 |
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ftunivbergen:oai:bora.uib.no:11250/2766244 2023-05-15T13:22:39+02:00 Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 Boles, Elisabeth Provost, Christine Garçon, Veronique Bertosio, Cécilia Athanase, Marylou Koenig, Zoé Charlotte Sennéchael, Nathalie 2020 application/pdf https://hdl.handle.net/11250/2766244 https://doi.org/10.1029/2019JC015608 eng eng AGU urn:issn:2169-9380 https://hdl.handle.net/11250/2766244 https://doi.org/10.1029/2019JC015608 cristin:1880575 Journal of Geophysical Research (JGR): Space Physics. 2020, 125 (3), e2019JC015608. Copyright 2020. American Geophysical Union. All Rights Reserved. e2019JC015608 Journal of Geophysical Research (JGR): Space Physics 125 3 Journal article Peer reviewed 2020 ftunivbergen https://doi.org/10.1029/2019JC015608 2023-03-14T17:44:55Z In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, collecting measurements in the upper 250 m of Amundsen Basin, the Gakkel Ridge, Nansen Basin, and Fram Strait. Two distinct periods of primary production were encountered. The first bloom developed in the mixed layer in Amundsen Basin in May, reaching maximum chlorophyll a concentrations on the order of ~ 0.5 mg m−3 by the end of June. This bloom occurred earlier in the year than any other recorded bloom in Amundsen Basin, despite very limited under-ice light due to a thick layer of snow. The second bloom, encountered in Nansen Basin in August, was significantly larger (mean profile maximum chlorophyll a was 1.45 mg m−3). Examinations of the optical community index and colored dissolved organic matter concentrations suggest that the spring bloom consisted of small phytoplankton which may have been mixotrophic, while the summer bloom contained a greater diversity of planktonic size classes. The data set demonstrates the heterogeneity of Arctic under-ice primary production, and is a valuable resource for validating coupled Earth System models. publishedVersion Article in Journal/Newspaper amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin North Pole Phytoplankton University of Bergen: Bergen Open Research Archive (BORA-UiB) Amundsen Basin ENVELOPE(74.000,74.000,87.000,87.000) Arctic Arctic Ocean Gakkel Ridge ENVELOPE(90.000,90.000,87.000,87.000) North Pole Journal of Geophysical Research: Oceans 125 3 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
description |
In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, collecting measurements in the upper 250 m of Amundsen Basin, the Gakkel Ridge, Nansen Basin, and Fram Strait. Two distinct periods of primary production were encountered. The first bloom developed in the mixed layer in Amundsen Basin in May, reaching maximum chlorophyll a concentrations on the order of ~ 0.5 mg m−3 by the end of June. This bloom occurred earlier in the year than any other recorded bloom in Amundsen Basin, despite very limited under-ice light due to a thick layer of snow. The second bloom, encountered in Nansen Basin in August, was significantly larger (mean profile maximum chlorophyll a was 1.45 mg m−3). Examinations of the optical community index and colored dissolved organic matter concentrations suggest that the spring bloom consisted of small phytoplankton which may have been mixotrophic, while the summer bloom contained a greater diversity of planktonic size classes. The data set demonstrates the heterogeneity of Arctic under-ice primary production, and is a valuable resource for validating coupled Earth System models. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Boles, Elisabeth Provost, Christine Garçon, Veronique Bertosio, Cécilia Athanase, Marylou Koenig, Zoé Charlotte Sennéchael, Nathalie |
spellingShingle |
Boles, Elisabeth Provost, Christine Garçon, Veronique Bertosio, Cécilia Athanase, Marylou Koenig, Zoé Charlotte Sennéchael, Nathalie Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
author_facet |
Boles, Elisabeth Provost, Christine Garçon, Veronique Bertosio, Cécilia Athanase, Marylou Koenig, Zoé Charlotte Sennéchael, Nathalie |
author_sort |
Boles, Elisabeth |
title |
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
title_short |
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
title_full |
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
title_fullStr |
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
title_full_unstemmed |
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017 |
title_sort |
under-ice phytoplankton blooms in the central arctic ocean: insights from the first biogeochemical iaoos platform drift in 2017 |
publisher |
AGU |
publishDate |
2020 |
url |
https://hdl.handle.net/11250/2766244 https://doi.org/10.1029/2019JC015608 |
long_lat |
ENVELOPE(74.000,74.000,87.000,87.000) ENVELOPE(90.000,90.000,87.000,87.000) |
geographic |
Amundsen Basin Arctic Arctic Ocean Gakkel Ridge North Pole |
geographic_facet |
Amundsen Basin Arctic Arctic Ocean Gakkel Ridge North Pole |
genre |
amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin North Pole Phytoplankton |
genre_facet |
amundsen basin Arctic Arctic Ocean Fram Strait Nansen Basin North Pole Phytoplankton |
op_source |
e2019JC015608 Journal of Geophysical Research (JGR): Space Physics 125 3 |
op_relation |
urn:issn:2169-9380 https://hdl.handle.net/11250/2766244 https://doi.org/10.1029/2019JC015608 cristin:1880575 Journal of Geophysical Research (JGR): Space Physics. 2020, 125 (3), e2019JC015608. |
op_rights |
Copyright 2020. American Geophysical Union. All Rights Reserved. |
op_doi |
https://doi.org/10.1029/2019JC015608 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
125 |
container_issue |
3 |
_version_ |
1766365898525900800 |