Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus
The sensitivity of the biological parameters in a nutrient-phytoplankton-zooplankton-detritus (NPZD) model in the calculation of the air-sea CO2 flux, primary production and detrital export is analysed. We explore the effect on these outputs of variation in the values of the twenty parameters that c...
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European Geosciences Union
2011
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ftunivreading:oai:centaur.reading.ac.uk:33717 2024-09-09T19:57:51+00:00 Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus Scott, V. Kettle, H. Merchant, C. J. 2011 https://centaur.reading.ac.uk/33717/ http://www.ocean-sci.net/7/405/2011/os-7-405-2011.html unknown European Geosciences Union Scott, V., Kettle, H. and Merchant, C. J. <https://centaur.reading.ac.uk/view/creators/90005270.html> orcid:0000-0003-4687-9850 (2011) Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus. Ocean Science, 7 (3). pp. 405-419. ISSN 1812-0784 doi: https://doi.org/10.5194/os-7-405-2011 <https://doi.org/10.5194/os-7-405-2011> Article PeerReviewed 2011 ftunivreading https://doi.org/10.5194/os-7-405-2011 2024-06-25T14:55:27Z The sensitivity of the biological parameters in a nutrient-phytoplankton-zooplankton-detritus (NPZD) model in the calculation of the air-sea CO2 flux, primary production and detrital export is analysed. We explore the effect on these outputs of variation in the values of the twenty parameters that control ocean ecosystem growth in a 1-D formulation of the UK Met Office HadOCC NPZD model used in GCMs. We use and compare the results from one-at-a-time and all-at-a-time perturbations performed at three sites in the EuroSITES European Ocean Observatory Network: the Central Irminger Sea (60° N 40° W), the Porcupine Abyssal Plain (49° N 16° W) and the European Station for Time series in the Ocean Canary Islands (29° N 15° W). Reasonable changes to the values of key parameters are shown to have a large effect on the calculation of the air-sea CO2 flux, primary production, and export of biological detritus to the deep ocean. Changes in the values of key parameters have a greater effect in more productive regions than in less productive areas. The most sensitive parameters are generally found to be those controlling well-established ocean ecosystem parameterisations widely used in many NPZD-type models. The air-sea CO2 flux is most influenced by variation in the parameters that control phytoplankton growth, detrital sinking and carbonate production by phytoplankton (the rain ratio). Primary production is most sensitive to the parameters that define the shape of the photosynthesis-irradiance curve. Export production is most sensitive to the parameters that control the rate of detrital sinking and the remineralisation of detritus. Article in Journal/Newspaper North Atlantic CentAUR: Central Archive at the University of Reading Irminger Sea ENVELOPE(-34.041,-34.041,63.054,63.054) Ocean Science 7 3 405 419 |
institution |
Open Polar |
collection |
CentAUR: Central Archive at the University of Reading |
op_collection_id |
ftunivreading |
language |
unknown |
description |
The sensitivity of the biological parameters in a nutrient-phytoplankton-zooplankton-detritus (NPZD) model in the calculation of the air-sea CO2 flux, primary production and detrital export is analysed. We explore the effect on these outputs of variation in the values of the twenty parameters that control ocean ecosystem growth in a 1-D formulation of the UK Met Office HadOCC NPZD model used in GCMs. We use and compare the results from one-at-a-time and all-at-a-time perturbations performed at three sites in the EuroSITES European Ocean Observatory Network: the Central Irminger Sea (60° N 40° W), the Porcupine Abyssal Plain (49° N 16° W) and the European Station for Time series in the Ocean Canary Islands (29° N 15° W). Reasonable changes to the values of key parameters are shown to have a large effect on the calculation of the air-sea CO2 flux, primary production, and export of biological detritus to the deep ocean. Changes in the values of key parameters have a greater effect in more productive regions than in less productive areas. The most sensitive parameters are generally found to be those controlling well-established ocean ecosystem parameterisations widely used in many NPZD-type models. The air-sea CO2 flux is most influenced by variation in the parameters that control phytoplankton growth, detrital sinking and carbonate production by phytoplankton (the rain ratio). Primary production is most sensitive to the parameters that define the shape of the photosynthesis-irradiance curve. Export production is most sensitive to the parameters that control the rate of detrital sinking and the remineralisation of detritus. |
format |
Article in Journal/Newspaper |
author |
Scott, V. Kettle, H. Merchant, C. J. |
spellingShingle |
Scott, V. Kettle, H. Merchant, C. J. Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
author_facet |
Scott, V. Kettle, H. Merchant, C. J. |
author_sort |
Scott, V. |
title |
Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
title_short |
Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
title_full |
Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
title_fullStr |
Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
title_full_unstemmed |
Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus |
title_sort |
sensitivity analysis of an ocean carbon cycle model in the north atlantic: an investigation of parameters affecting the air-sea co2 flux, primary production and export of detritus |
publisher |
European Geosciences Union |
publishDate |
2011 |
url |
https://centaur.reading.ac.uk/33717/ http://www.ocean-sci.net/7/405/2011/os-7-405-2011.html |
long_lat |
ENVELOPE(-34.041,-34.041,63.054,63.054) |
geographic |
Irminger Sea |
geographic_facet |
Irminger Sea |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Scott, V., Kettle, H. and Merchant, C. J. <https://centaur.reading.ac.uk/view/creators/90005270.html> orcid:0000-0003-4687-9850 (2011) Sensitivity analysis of an ocean carbon cycle model in the North Atlantic: an investigation of parameters affecting the air-sea CO2 flux, primary production and export of detritus. Ocean Science, 7 (3). pp. 405-419. ISSN 1812-0784 doi: https://doi.org/10.5194/os-7-405-2011 <https://doi.org/10.5194/os-7-405-2011> |
op_doi |
https://doi.org/10.5194/os-7-405-2011 |
container_title |
Ocean Science |
container_volume |
7 |
container_issue |
3 |
container_start_page |
405 |
op_container_end_page |
419 |
_version_ |
1809928801289764864 |