Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model
00002 ăWOS:000373067500018 International audience Environmental context Models are needed to predict the importance of the changes in marine emissions of dimethylsulfide (DMS) in response to ocean warming, increased stratification and acidification, and to evaluate the potential effects on the Earth...
Published in: | Environmental Chemistry |
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Main Authors: | , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2016
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Subjects: | |
Online Access: | https://doi.org/10.1071/EN14265 https://hal.archives-ouvertes.fr/hal-01483280 |
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institution |
Open Polar |
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op_collection_id |
fttriple |
language |
English |
topic |
solar radiation dose marine-phytoplankton limitation global modelling dimethylsulfoniopropionate dimethyl sulfide north-sea Sargasso Sea ACL cultures envir geo |
spellingShingle |
solar radiation dose marine-phytoplankton limitation global modelling dimethylsulfoniopropionate dimethyl sulfide north-sea Sargasso Sea ACL cultures envir geo Masotti, Italo Belviso, Sauveur Bopp, Laurent Tagliabue, Alessandro Bucciarelli, Eva Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
topic_facet |
solar radiation dose marine-phytoplankton limitation global modelling dimethylsulfoniopropionate dimethyl sulfide north-sea Sargasso Sea ACL cultures envir geo |
description |
00002 ăWOS:000373067500018 International audience Environmental context Models are needed to predict the importance of the changes in marine emissions of dimethylsulfide (DMS) in response to ocean warming, increased stratification and acidification, and to evaluate the potential effects on the Earth's climate. We use complementary simulations to further our understanding of the marine cycle of DMS in subtropical waters, and show that a lack of phosphorus may exert a more important control on surface DMS concentrations than an excess of light. Abstract The occurrence of a summer DMS paradox in the vast subtropical gyres is a strong matter of debate because approaches using discrete measurements, climatological data and model simulations yielded contradictory results. The major conclusion of the first appraisal of prognostic ocean DMS models was that such models need to give more weight to the direct effect of environmental forcings (e.g. irradiance) on DMS dynamics to decouple them from ecological processes. Here, the relative role of light and phosphorus on summer DMS dynamics in subtropical waters is assessed using the ocean general circulation and biogeochemistry model NEMO-PISCES in which macronutrient concentrations were restored to monthly climatological data values to improve the representation of phosphate concentrations. Results show that the vertical and temporal decoupling between chlorophyll and DMS concentrations observed in the Sargasso Sea during the summer months is captured by the model. Additional sensitivity tests show that the simulated control of phosphorus on surface DMS concentrations in the Sargasso Sea is much more important than that of light. By extending the analysis to the whole North Atlantic Ocean, we show that the longitudinal distribution of DMS during summer is asymmetrical and that a correlation between the solar radiation dose and DMS concentrations only occurs in the Sargasso Sea. The lack of a widespread summer DMS paradox in our model simulation as well as in the ... |
author2 |
Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Universidad de Valparaiso Chile ICOS-RAMCES (ICOS-RAMCES) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) University of Liverpool Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO) |
format |
Article in Journal/Newspaper |
author |
Masotti, Italo Belviso, Sauveur Bopp, Laurent Tagliabue, Alessandro Bucciarelli, Eva |
author_facet |
Masotti, Italo Belviso, Sauveur Bopp, Laurent Tagliabue, Alessandro Bucciarelli, Eva |
author_sort |
Masotti, Italo |
title |
Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
title_short |
Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
title_full |
Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
title_fullStr |
Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
title_full_unstemmed |
Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model |
title_sort |
effects of light and phosphorus on summer dms dynamics in subtropical waters using a global ocean biogeochemical model |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://doi.org/10.1071/EN14265 https://hal.archives-ouvertes.fr/hal-01483280 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1448-2517 EISSN: 1449-8979 Environmental Chemistry Environmental Chemistry, CSIRO Publishing, 2016, 13 (2), pp.379-389. ⟨10.1071/EN14265⟩ |
op_relation |
hal-01483280 doi:10.1071/EN14265 10670/1.nblycf https://hal.archives-ouvertes.fr/hal-01483280 |
op_rights |
undefined |
op_doi |
https://doi.org/10.1071/EN14265 |
container_title |
Environmental Chemistry |
container_volume |
13 |
container_issue |
2 |
container_start_page |
379 |
_version_ |
1766136284552626176 |
spelling |
fttriple:oai:gotriple.eu:10670/1.nblycf 2023-05-15T17:36:43+02:00 Effects of light and phosphorus on summer DMS dynamics in subtropical waters using a global ocean biogeochemical model Masotti, Italo Belviso, Sauveur Bopp, Laurent Tagliabue, Alessandro Bucciarelli, Eva Laboratoire des Sciences du Climat et de l'Environnement Gif-sur-Yvette (LSCE) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) Universidad de Valparaiso Chile ICOS-RAMCES (ICOS-RAMCES) Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ) University of Liverpool Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Brest (UBO) 2016-01-01 https://doi.org/10.1071/EN14265 https://hal.archives-ouvertes.fr/hal-01483280 en eng HAL CCSD CSIRO Publishing hal-01483280 doi:10.1071/EN14265 10670/1.nblycf https://hal.archives-ouvertes.fr/hal-01483280 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 1448-2517 EISSN: 1449-8979 Environmental Chemistry Environmental Chemistry, CSIRO Publishing, 2016, 13 (2), pp.379-389. ⟨10.1071/EN14265⟩ solar radiation dose marine-phytoplankton limitation global modelling dimethylsulfoniopropionate dimethyl sulfide north-sea Sargasso Sea ACL cultures envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2016 fttriple https://doi.org/10.1071/EN14265 2023-01-22T18:33:54Z 00002 ăWOS:000373067500018 International audience Environmental context Models are needed to predict the importance of the changes in marine emissions of dimethylsulfide (DMS) in response to ocean warming, increased stratification and acidification, and to evaluate the potential effects on the Earth's climate. We use complementary simulations to further our understanding of the marine cycle of DMS in subtropical waters, and show that a lack of phosphorus may exert a more important control on surface DMS concentrations than an excess of light. Abstract The occurrence of a summer DMS paradox in the vast subtropical gyres is a strong matter of debate because approaches using discrete measurements, climatological data and model simulations yielded contradictory results. The major conclusion of the first appraisal of prognostic ocean DMS models was that such models need to give more weight to the direct effect of environmental forcings (e.g. irradiance) on DMS dynamics to decouple them from ecological processes. Here, the relative role of light and phosphorus on summer DMS dynamics in subtropical waters is assessed using the ocean general circulation and biogeochemistry model NEMO-PISCES in which macronutrient concentrations were restored to monthly climatological data values to improve the representation of phosphate concentrations. Results show that the vertical and temporal decoupling between chlorophyll and DMS concentrations observed in the Sargasso Sea during the summer months is captured by the model. Additional sensitivity tests show that the simulated control of phosphorus on surface DMS concentrations in the Sargasso Sea is much more important than that of light. By extending the analysis to the whole North Atlantic Ocean, we show that the longitudinal distribution of DMS during summer is asymmetrical and that a correlation between the solar radiation dose and DMS concentrations only occurs in the Sargasso Sea. The lack of a widespread summer DMS paradox in our model simulation as well as in the ... Article in Journal/Newspaper North Atlantic Unknown Environmental Chemistry 13 2 379 |