Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth
We validated simulations of the Earth system model (ESM) EC-Earth-NEMO of present-day temperature, salinity, nutrient, and chlorophyll a profiles with in situ observations in the Northeast Atlantic Ocean (29–63º N). Simulations with standard parametrization (run 1) and improved parametrization of ve...
Published in: | Geosciences |
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Main Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2019
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Online Access: | https://hdl.handle.net/11370/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://research.rug.nl/en/publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://doi.org/10.3390/geosciences9100450 https://pure.rug.nl/ws/files/100585211/geosciences_09_00450.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 2024-06-23T07:50:35+00:00 Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth Skyllas, Nomikos Bintanja, Richard Buma, Anita BRUSSAARD, CPD Gröger, Matthias Hieronymus, Jenny van de Poll, Willem 2019-10-21 application/pdf https://hdl.handle.net/11370/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://research.rug.nl/en/publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://doi.org/10.3390/geosciences9100450 https://pure.rug.nl/ws/files/100585211/geosciences_09_00450.pdf eng eng https://research.rug.nl/en/publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 info:eu-repo/semantics/openAccess Skyllas , N , Bintanja , R , Buma , A , BRUSSAARD , CPD , Gröger , M , Hieronymus , J & van de Poll , W 2019 , ' Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth ' , Geosciences , vol. 9 , no. 10 , 450 . https://doi.org/10.3390/geosciences9100450 North Atlantic Earth system models EC-Earth NEMO PISCES carbon cycle phytoplankton Stratiphyt model validation stratification nutrients chlorophyll a mixed layer depth FRESH-WATER DISCHARGE COMMUNITY STRUCTURE MODEL PRODUCTIVITY COMPONENT GRADIENT EXPORT article 2019 ftunigroningenpu https://doi.org/10.3390/geosciences9100450 2024-06-03T16:53:27Z We validated simulations of the Earth system model (ESM) EC-Earth-NEMO of present-day temperature, salinity, nutrient, and chlorophyll a profiles with in situ observations in the Northeast Atlantic Ocean (29–63º N). Simulations with standard parametrization (run 1) and improved parametrization of vertical mixing (run 2) were compared. Run 1 showed shallower mixed layer depths (MLDs) in spring as compared to observations owing to lower salinities in the upper 200 m of the subpolar North Atlantic (>55º N). This coincided with a mismatch with observed timing and magnitude of the phytoplankton spring bloom. In contrast, the model performed well south of 55º N. Run 2 showed improved springtime MLD, phytoplankton dynamics, and nutrient distributions in the subpolar North Atlantic. Our study underlines the sensitivity of subpolar North Atlantic phytoplankton blooms to surface freshening, suggesting that future fresh-water inflow from Arctic and Greenland Ice sheet melting could significantly affect phytoplankton productivity. These findings contribute to the generic validation of the EC-Earth ESM and underline the need for rigorous validation of physics-biology links, in particular the sub polar North Atlantic where complex seasonal stratification/vertical mixing processes govern upper ocean phytoplankton productivity. Article in Journal/Newspaper Arctic Greenland Ice Sheet North Atlantic Northeast Atlantic Phytoplankton University of Groningen research database Arctic Greenland Geosciences 9 10 450 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
North Atlantic Earth system models EC-Earth NEMO PISCES carbon cycle phytoplankton Stratiphyt model validation stratification nutrients chlorophyll a mixed layer depth FRESH-WATER DISCHARGE COMMUNITY STRUCTURE MODEL PRODUCTIVITY COMPONENT GRADIENT EXPORT |
spellingShingle |
North Atlantic Earth system models EC-Earth NEMO PISCES carbon cycle phytoplankton Stratiphyt model validation stratification nutrients chlorophyll a mixed layer depth FRESH-WATER DISCHARGE COMMUNITY STRUCTURE MODEL PRODUCTIVITY COMPONENT GRADIENT EXPORT Skyllas, Nomikos Bintanja, Richard Buma, Anita BRUSSAARD, CPD Gröger, Matthias Hieronymus, Jenny van de Poll, Willem Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
topic_facet |
North Atlantic Earth system models EC-Earth NEMO PISCES carbon cycle phytoplankton Stratiphyt model validation stratification nutrients chlorophyll a mixed layer depth FRESH-WATER DISCHARGE COMMUNITY STRUCTURE MODEL PRODUCTIVITY COMPONENT GRADIENT EXPORT |
description |
We validated simulations of the Earth system model (ESM) EC-Earth-NEMO of present-day temperature, salinity, nutrient, and chlorophyll a profiles with in situ observations in the Northeast Atlantic Ocean (29–63º N). Simulations with standard parametrization (run 1) and improved parametrization of vertical mixing (run 2) were compared. Run 1 showed shallower mixed layer depths (MLDs) in spring as compared to observations owing to lower salinities in the upper 200 m of the subpolar North Atlantic (>55º N). This coincided with a mismatch with observed timing and magnitude of the phytoplankton spring bloom. In contrast, the model performed well south of 55º N. Run 2 showed improved springtime MLD, phytoplankton dynamics, and nutrient distributions in the subpolar North Atlantic. Our study underlines the sensitivity of subpolar North Atlantic phytoplankton blooms to surface freshening, suggesting that future fresh-water inflow from Arctic and Greenland Ice sheet melting could significantly affect phytoplankton productivity. These findings contribute to the generic validation of the EC-Earth ESM and underline the need for rigorous validation of physics-biology links, in particular the sub polar North Atlantic where complex seasonal stratification/vertical mixing processes govern upper ocean phytoplankton productivity. |
format |
Article in Journal/Newspaper |
author |
Skyllas, Nomikos Bintanja, Richard Buma, Anita BRUSSAARD, CPD Gröger, Matthias Hieronymus, Jenny van de Poll, Willem |
author_facet |
Skyllas, Nomikos Bintanja, Richard Buma, Anita BRUSSAARD, CPD Gröger, Matthias Hieronymus, Jenny van de Poll, Willem |
author_sort |
Skyllas, Nomikos |
title |
Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
title_short |
Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
title_full |
Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
title_fullStr |
Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
title_full_unstemmed |
Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth |
title_sort |
validation of stratification-driven phytoplankton biomass and nutrient concentrations in the northeast atlantic ocean as simulated by ec-earth |
publishDate |
2019 |
url |
https://hdl.handle.net/11370/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://research.rug.nl/en/publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 https://doi.org/10.3390/geosciences9100450 https://pure.rug.nl/ws/files/100585211/geosciences_09_00450.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland Ice Sheet North Atlantic Northeast Atlantic Phytoplankton |
genre_facet |
Arctic Greenland Ice Sheet North Atlantic Northeast Atlantic Phytoplankton |
op_source |
Skyllas , N , Bintanja , R , Buma , A , BRUSSAARD , CPD , Gröger , M , Hieronymus , J & van de Poll , W 2019 , ' Validation of Stratification-Driven Phytoplankton Biomass and Nutrient Concentrations in the Northeast Atlantic Ocean as Simulated by EC-Earth ' , Geosciences , vol. 9 , no. 10 , 450 . https://doi.org/10.3390/geosciences9100450 |
op_relation |
https://research.rug.nl/en/publications/f2d498e9-e28e-40bb-a1d7-e614c30a5346 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3390/geosciences9100450 |
container_title |
Geosciences |
container_volume |
9 |
container_issue |
10 |
container_start_page |
450 |
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1802641494015737856 |