Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model
We present results obtained with SWAMCO-4, a complex model of the marine planktonic system calculating C, N, P, Si, Fe cycling within the upper ocean, the export production and the exchange of CO2 between the ocean and atmosphere. The model, constrained by physical, chemical and biological (grazing,...
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Online Access: | http://hdl.handle.net/2078.1/39604 https://doi.org/10.1016/j.seares.2004.07.001 |
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ftunivlouvain:oai:dial.uclouvain.be:boreal:39604 2024-05-19T07:31:43+00:00 Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model Pasquer, B. Laruelle, G Becquevort, S. Schoemann, V. Goosse, Hugues Lancelot, C. UCL UCL - SST/ELI/ELIC - Earth & Climate 2005 http://hdl.handle.net/2078.1/39604 https://doi.org/10.1016/j.seares.2004.07.001 eng eng Elsevier Science Bv boreal:39604 http://hdl.handle.net/2078.1/39604 doi:10.1016/j.seares.2004.07.001 urn:ISSN:1385-1101 urn:EISSN:1873-1414 info:eu-repo/semantics/restrictedAccess Journal of Sea Research, Vol. 53, no. 1-2, p. 93-108 (2005) ecological modelling diatoms pico/nanophytoplankton coccolithophorids Phaeocystis spp iron air-sea CO2 fluxes global ocean antarctic ocean North Atlantic info:eu-repo/semantics/article 2005 ftunivlouvain https://doi.org/10.1016/j.seares.2004.07.001 2024-04-24T01:49:20Z We present results obtained with SWAMCO-4, a complex model of the marine planktonic system calculating C, N, P, Si, Fe cycling within the upper ocean, the export production and the exchange of CO2 between the ocean and atmosphere. The model, constrained by physical, chemical and biological (grazing, lysis) controls, explicitly details the dynamics of four relevant phytoplankton functional groups with respect to C, N, P, Si, Fe cycling and climate change. Those are diatoms, pico/nano phytoplankton, coccolithophorids, and Phaeocystis spp. whose growth regulation by light, temperature and nutrients has been obtained based on a comprehensive analysis of literature reviews on these taxonomic groups. The performance of SWAMCO-4 is first evaluated in a 1D physical frame throughout its cross application in provinces with contrasted key species dominance, export production, CO2 air-sea fluxes and where biogeochemical time-series data are available for model initialisation and comparison of results. These are: (i) the ice-free Southern Ocean Time Series station KERFIX (50degrees40S, 68degreesE) for the period 1993-1994 (diatom-dominated); (ii) the sea-ice associated Ross Sea domain (Station S; 76degreesS, 180degreesW) of the Antarctic Environment and Southern Ocean Process Study AESOPS in 1996-1997 (Phaeocystis-dominated); and (iii) the North Atlantic Bloom Experiment NABE (60degreesN, 20degreesW) in 1991 (coccolithophorids). We then explore and compare the ocean response to increased atmospheric CO2 by running SWAMCO-4 at the different locations over the last decade. Results show that at all tested latitudes the prescribed increase of atmospheric CO2 enhances the carbon uptake by the ocean. However, the amplitude of the predicted atmospheric CO2 sinks displays large regional and interannual variations due to the actual meteorological forcing that drives the local hydrodynamics. This is particularly true in the marginal ice zone of the Ross Sea (AESOPS) where the magnitude of the predicted annual CO2 sink is positively ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean North Atlantic Ross Sea Sea ice Southern Ocean DIAL@UCLouvain (Université catholique de Louvain) Journal of Sea Research 53 1-2 93 108 |
institution |
Open Polar |
collection |
DIAL@UCLouvain (Université catholique de Louvain) |
op_collection_id |
ftunivlouvain |
language |
English |
topic |
ecological modelling diatoms pico/nanophytoplankton coccolithophorids Phaeocystis spp iron air-sea CO2 fluxes global ocean antarctic ocean North Atlantic |
spellingShingle |
ecological modelling diatoms pico/nanophytoplankton coccolithophorids Phaeocystis spp iron air-sea CO2 fluxes global ocean antarctic ocean North Atlantic Pasquer, B. Laruelle, G Becquevort, S. Schoemann, V. Goosse, Hugues Lancelot, C. Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
topic_facet |
ecological modelling diatoms pico/nanophytoplankton coccolithophorids Phaeocystis spp iron air-sea CO2 fluxes global ocean antarctic ocean North Atlantic |
description |
We present results obtained with SWAMCO-4, a complex model of the marine planktonic system calculating C, N, P, Si, Fe cycling within the upper ocean, the export production and the exchange of CO2 between the ocean and atmosphere. The model, constrained by physical, chemical and biological (grazing, lysis) controls, explicitly details the dynamics of four relevant phytoplankton functional groups with respect to C, N, P, Si, Fe cycling and climate change. Those are diatoms, pico/nano phytoplankton, coccolithophorids, and Phaeocystis spp. whose growth regulation by light, temperature and nutrients has been obtained based on a comprehensive analysis of literature reviews on these taxonomic groups. The performance of SWAMCO-4 is first evaluated in a 1D physical frame throughout its cross application in provinces with contrasted key species dominance, export production, CO2 air-sea fluxes and where biogeochemical time-series data are available for model initialisation and comparison of results. These are: (i) the ice-free Southern Ocean Time Series station KERFIX (50degrees40S, 68degreesE) for the period 1993-1994 (diatom-dominated); (ii) the sea-ice associated Ross Sea domain (Station S; 76degreesS, 180degreesW) of the Antarctic Environment and Southern Ocean Process Study AESOPS in 1996-1997 (Phaeocystis-dominated); and (iii) the North Atlantic Bloom Experiment NABE (60degreesN, 20degreesW) in 1991 (coccolithophorids). We then explore and compare the ocean response to increased atmospheric CO2 by running SWAMCO-4 at the different locations over the last decade. Results show that at all tested latitudes the prescribed increase of atmospheric CO2 enhances the carbon uptake by the ocean. However, the amplitude of the predicted atmospheric CO2 sinks displays large regional and interannual variations due to the actual meteorological forcing that drives the local hydrodynamics. This is particularly true in the marginal ice zone of the Ross Sea (AESOPS) where the magnitude of the predicted annual CO2 sink is positively ... |
author2 |
UCL UCL - SST/ELI/ELIC - Earth & Climate |
format |
Article in Journal/Newspaper |
author |
Pasquer, B. Laruelle, G Becquevort, S. Schoemann, V. Goosse, Hugues Lancelot, C. |
author_facet |
Pasquer, B. Laruelle, G Becquevort, S. Schoemann, V. Goosse, Hugues Lancelot, C. |
author_sort |
Pasquer, B. |
title |
Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
title_short |
Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
title_full |
Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
title_fullStr |
Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
title_full_unstemmed |
Linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex SWAMCO-4 model |
title_sort |
linking ocean biogeochemical cycles and ecosystem structure and function: results of the complex swamco-4 model |
publisher |
Elsevier Science Bv |
publishDate |
2005 |
url |
http://hdl.handle.net/2078.1/39604 https://doi.org/10.1016/j.seares.2004.07.001 |
genre |
Antarc* Antarctic Antarctic Ocean North Atlantic Ross Sea Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean North Atlantic Ross Sea Sea ice Southern Ocean |
op_source |
Journal of Sea Research, Vol. 53, no. 1-2, p. 93-108 (2005) |
op_relation |
boreal:39604 http://hdl.handle.net/2078.1/39604 doi:10.1016/j.seares.2004.07.001 urn:ISSN:1385-1101 urn:EISSN:1873-1414 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/j.seares.2004.07.001 |
container_title |
Journal of Sea Research |
container_volume |
53 |
container_issue |
1-2 |
container_start_page |
93 |
op_container_end_page |
108 |
_version_ |
1799469595673755648 |