Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect.
Using in situ data of upper ocean vertical mixing along a transect in the North Atlantic and a one-dimensional phytoplankton growth model, we study the sensitivity of the surface phytoplankton concentration to vertical mixing distributions. The study is divided into two parts. In the first part, the...
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Online Access: | https://research.vu.nl/en/publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 https://doi.org/10.5194/os-10-993-2014 https://hdl.handle.net/1871.1/a1316cc5-d849-42e5-af17-c47dc4a94e28 |
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ftvuamstcris:oai:research.vu.nl:publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 2024-09-15T18:21:40+00:00 Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. Hahn-Woernle, L. Dijkstra, H. van der Woerd, H.J. 2014 https://research.vu.nl/en/publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 https://doi.org/10.5194/os-10-993-2014 https://hdl.handle.net/1871.1/a1316cc5-d849-42e5-af17-c47dc4a94e28 eng eng https://research.vu.nl/en/publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 info:eu-repo/semantics/openAccess Hahn-Woernle , L , Dijkstra , H & van der Woerd , H J 2014 , ' Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. ' , Ocean Science , vol. 10 , pp. 993-1011 . https://doi.org/10.5194/os-10-993-2014 /dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water article 2014 ftvuamstcris https://doi.org/10.5194/os-10-993-2014 2024-08-07T23:47:18Z Using in situ data of upper ocean vertical mixing along a transect in the North Atlantic and a one-dimensional phytoplankton growth model, we study the sensitivity of the surface phytoplankton concentration to vertical mixing distributions. The study is divided into two parts. In the first part, the model is calibrated to the observations. The optical model parameters are determined from measurements of the light attenuation. The biological parameters are calibrated to three different reference stations with observed vertical profiles of the chlorophyll a (Chl a) concentration and the nutrient concentration. In the second part, the sensitivity of the three model calibrations to the vertical mixing is studied. Therefore measured vertical mixing profiles are applied to the model. These mixing profiles are based on the measurements along the transect and are treated as a set of possible mixing situations of the North Atlantic. Results show that shifts in vertical mixing are able to induce a transition from an upper chlorophyll maximum to a deep one and vice versa. Furthermore, a clear correlation between the surface phytoplankton concentration and the mixing induced nutrient flux is found for nutrient-limited cases. This may open up the possibility to extract characteristics of vertical mixing from satellite ocean colour data using data-assimilation methods. Article in Journal/Newspaper North Atlantic Vrije Universiteit Amsterdam (VU): Research Portal Ocean Science 10 6 993 1011 |
institution |
Open Polar |
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Vrije Universiteit Amsterdam (VU): Research Portal |
op_collection_id |
ftvuamstcris |
language |
English |
topic |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
spellingShingle |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water Hahn-Woernle, L. Dijkstra, H. van der Woerd, H.J. Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
topic_facet |
/dk/atira/pure/sustainabledevelopmentgoals/life_below_water name=SDG 14 - Life Below Water |
description |
Using in situ data of upper ocean vertical mixing along a transect in the North Atlantic and a one-dimensional phytoplankton growth model, we study the sensitivity of the surface phytoplankton concentration to vertical mixing distributions. The study is divided into two parts. In the first part, the model is calibrated to the observations. The optical model parameters are determined from measurements of the light attenuation. The biological parameters are calibrated to three different reference stations with observed vertical profiles of the chlorophyll a (Chl a) concentration and the nutrient concentration. In the second part, the sensitivity of the three model calibrations to the vertical mixing is studied. Therefore measured vertical mixing profiles are applied to the model. These mixing profiles are based on the measurements along the transect and are treated as a set of possible mixing situations of the North Atlantic. Results show that shifts in vertical mixing are able to induce a transition from an upper chlorophyll maximum to a deep one and vice versa. Furthermore, a clear correlation between the surface phytoplankton concentration and the mixing induced nutrient flux is found for nutrient-limited cases. This may open up the possibility to extract characteristics of vertical mixing from satellite ocean colour data using data-assimilation methods. |
format |
Article in Journal/Newspaper |
author |
Hahn-Woernle, L. Dijkstra, H. van der Woerd, H.J. |
author_facet |
Hahn-Woernle, L. Dijkstra, H. van der Woerd, H.J. |
author_sort |
Hahn-Woernle, L. |
title |
Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
title_short |
Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
title_full |
Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
title_fullStr |
Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
title_full_unstemmed |
Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. |
title_sort |
sensitivity of phytoplankton distributions to vertical mixing along a north atlantic transect. |
publishDate |
2014 |
url |
https://research.vu.nl/en/publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 https://doi.org/10.5194/os-10-993-2014 https://hdl.handle.net/1871.1/a1316cc5-d849-42e5-af17-c47dc4a94e28 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Hahn-Woernle , L , Dijkstra , H & van der Woerd , H J 2014 , ' Sensitivity of phytoplankton distributions to vertical mixing along a North Atlantic transect. ' , Ocean Science , vol. 10 , pp. 993-1011 . https://doi.org/10.5194/os-10-993-2014 |
op_relation |
https://research.vu.nl/en/publications/a1316cc5-d849-42e5-af17-c47dc4a94e28 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/os-10-993-2014 |
container_title |
Ocean Science |
container_volume |
10 |
container_issue |
6 |
container_start_page |
993 |
op_container_end_page |
1011 |
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1810460402561056768 |