Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model
Physical transport processes of carbon, alkalinity, heat, and nutrients to a large extent control the partial pressure of CO2 at the sea surface and hence the oceanic carbon uptake. Using a state-of-the-art biogeochemical model of the North Atlantic at eddy-permitting resolution we show that biases...
Published in: | Global Biogeochemical Cycles |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
2006
|
Subjects: | |
Online Access: | https://eprints.soton.ac.uk/37745/ |
id |
ftsouthampton:oai:eprints.soton.ac.uk:37745 |
---|---|
record_format |
openpolar |
spelling |
ftsouthampton:oai:eprints.soton.ac.uk:37745 2023-07-30T04:05:11+02:00 Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model Eden, C. Oschlies, A. 2006 https://eprints.soton.ac.uk/37745/ unknown Eden, C. and Oschlies, A. (2006) Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model. Global Biogeochemical Cycles, 20 (2), 1-12. (doi:10.1029/2005GB002521 <http://dx.doi.org/10.1029/2005GB002521>). Article PeerReviewed 2006 ftsouthampton https://doi.org/10.1029/2005GB002521 2023-07-09T20:47:06Z Physical transport processes of carbon, alkalinity, heat, and nutrients to a large extent control the partial pressure of CO2 at the sea surface and hence the oceanic carbon uptake. Using a state-of-the-art biogeochemical model of the North Atlantic at eddy-permitting resolution we show that biases in the simulated circulation generate errors in air-sea fluxes of CO2 which are still larger than those associated with the considerable uncertainties in parameterizations of the air-sea gas exchange. A semiprognostic correction method that adiabatically corrects the momentum equations while conserving water mass properties and tracers is shown to yield a more realistic description of the carbon fluxes into the North Atlantic at little additional computational cost. Owing to upper ocean flow patterns in better agreement with observations, simulated CO2 uptake in the corrected regional model is larger by 25% compared to the uncorrected model. Article in Journal/Newspaper North Atlantic University of Southampton: e-Prints Soton Global Biogeochemical Cycles 20 2 n/a n/a |
institution |
Open Polar |
collection |
University of Southampton: e-Prints Soton |
op_collection_id |
ftsouthampton |
language |
unknown |
description |
Physical transport processes of carbon, alkalinity, heat, and nutrients to a large extent control the partial pressure of CO2 at the sea surface and hence the oceanic carbon uptake. Using a state-of-the-art biogeochemical model of the North Atlantic at eddy-permitting resolution we show that biases in the simulated circulation generate errors in air-sea fluxes of CO2 which are still larger than those associated with the considerable uncertainties in parameterizations of the air-sea gas exchange. A semiprognostic correction method that adiabatically corrects the momentum equations while conserving water mass properties and tracers is shown to yield a more realistic description of the carbon fluxes into the North Atlantic at little additional computational cost. Owing to upper ocean flow patterns in better agreement with observations, simulated CO2 uptake in the corrected regional model is larger by 25% compared to the uncorrected model. |
format |
Article in Journal/Newspaper |
author |
Eden, C. Oschlies, A. |
spellingShingle |
Eden, C. Oschlies, A. Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
author_facet |
Eden, C. Oschlies, A. |
author_sort |
Eden, C. |
title |
Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
title_short |
Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
title_full |
Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
title_fullStr |
Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
title_full_unstemmed |
Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model |
title_sort |
adiabatic reduction of circulation-related co2 air-sea flux biases in a north atlantic carbon-cycle model |
publishDate |
2006 |
url |
https://eprints.soton.ac.uk/37745/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Eden, C. and Oschlies, A. (2006) Adiabatic reduction of circulation-related CO2 air-sea flux biases in a North Atlantic carbon-cycle model. Global Biogeochemical Cycles, 20 (2), 1-12. (doi:10.1029/2005GB002521 <http://dx.doi.org/10.1029/2005GB002521>). |
op_doi |
https://doi.org/10.1029/2005GB002521 |
container_title |
Global Biogeochemical Cycles |
container_volume |
20 |
container_issue |
2 |
container_start_page |
n/a |
op_container_end_page |
n/a |
_version_ |
1772816951801806848 |