Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models
peer reviewed We compared the 13 models participating in the Ocean Carbon Model Intercomparison Project (OCMIP) with regards to their skill in matching observed distributions of CFC-11. This analysis characterizes the abilities of these models to ventilate the ocean on timescales relevant for anthro...
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Online Access: | https://orbi.uliege.be/handle/2268/61280 https://doi.org/10.1016/S1463-5003(01)00013-0 |
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ftorbi:oai:orbi.ulg.ac.be:2268/61280 2024-10-13T14:09:01+00:00 Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models Dutay, J.-C. Bullister, J. L. Doney, S. C. Orr, J. C. Najjar, R. Caldeira, K. Campin, J.-M. Drange, H. Follows, M. Gao, Y. Gruber, N. Hecht, M. W. Ishida, A. Joos, F. Lindsay, K. Madec, G. Maier-Reimer, E. Marshall, J. C. Matear, R. J. Monfray, P. Mouchet, Anne Plattner, G.-K. Sarmiento, J. Schlitzer, R. Slater, R. Totterdell, I. J. Weirig, M.-F. Yamanaka, Y. Yool, A. 2002 https://orbi.uliege.be/handle/2268/61280 https://doi.org/10.1016/S1463-5003(01)00013-0 en eng Elsevier urn:issn:1463-5003 urn:issn:1463-5011 https://orbi.uliege.be/handle/2268/61280 info:hdl:2268/61280 restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess Ocean Modelling, 4 (2), 89-120 (2002) Life sciences Aquatic sciences & oceanology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Sciences aquatiques & océanologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique journal article http://purl.org/coar/resource_type/c_6501 info:eu-repo/semantics/article peer reviewed 2002 ftorbi https://doi.org/10.1016/S1463-5003(01)00013-0 2024-09-30T14:23:32Z peer reviewed We compared the 13 models participating in the Ocean Carbon Model Intercomparison Project (OCMIP) with regards to their skill in matching observed distributions of CFC-11. This analysis characterizes the abilities of these models to ventilate the ocean on timescales relevant for anthropogenic CO2 uptake. We found a large range in the modeled global inventory (+/- 30\%), mainly due to differences in ventilation from the high latitudes. In the Southern Ocean, models differ particularly in the longitudinal distribution of the CFC uptake in the intermediate water, whereas the latitudinal distribution is mainly controlled by the subgrid-scale parameterization. Models with isopycnal diffusion and eddy-induced velocity parameterization produce more realistic intermediate water ventilation. Deep and bottom water ventilation also varies substantially between the models. Models coupled to a sea-ice model systematically provide more realistic AABW formation source region; however these same models also largely overestimate AABW ventilation if no specific parameterization of brine rejection during sea-ice formation is included. In the North Pacific Ocean, all models exhibit a systematic large underestimation of the CFC uptake in the thermocline of the subtropical gyre, while no systematic difference toward the observations is found in the subpolar gyre. In the North Atlantic Ocean, the CFC uptake is globally underestimated in subsurface. In the deep ocean, all but the adjoint model, failed to produce the two recently ventilated branches observed in the North Atlantic Deep Water (NADW). Furthermore, simulated transport in the Deep Western Boundary Current (DWBC) is too sluggish in all but the isopycnal model, where it is too rapid. (C) 2002 Elsevier Science Ltd. All rights reserved. Article in Journal/Newspaper NADW North Atlantic Deep Water North Atlantic Sea ice Southern Ocean University of Liège: ORBi (Open Repository and Bibliography) Southern Ocean Pacific Ocean Modelling 4 2 89 120 |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
Life sciences Aquatic sciences & oceanology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Sciences aquatiques & océanologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
spellingShingle |
Life sciences Aquatic sciences & oceanology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Sciences aquatiques & océanologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique Dutay, J.-C. Bullister, J. L. Doney, S. C. Orr, J. C. Najjar, R. Caldeira, K. Campin, J.-M. Drange, H. Follows, M. Gao, Y. Gruber, N. Hecht, M. W. Ishida, A. Joos, F. Lindsay, K. Madec, G. Maier-Reimer, E. Marshall, J. C. Matear, R. J. Monfray, P. Mouchet, Anne Plattner, G.-K. Sarmiento, J. Schlitzer, R. Slater, R. Totterdell, I. J. Weirig, M.-F. Yamanaka, Y. Yool, A. Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
topic_facet |
Life sciences Aquatic sciences & oceanology Physical chemical mathematical & earth Sciences Earth sciences & physical geography Sciences du vivant Sciences aquatiques & océanologie Physique chimie mathématiques & sciences de la terre Sciences de la terre & géographie physique |
description |
peer reviewed We compared the 13 models participating in the Ocean Carbon Model Intercomparison Project (OCMIP) with regards to their skill in matching observed distributions of CFC-11. This analysis characterizes the abilities of these models to ventilate the ocean on timescales relevant for anthropogenic CO2 uptake. We found a large range in the modeled global inventory (+/- 30\%), mainly due to differences in ventilation from the high latitudes. In the Southern Ocean, models differ particularly in the longitudinal distribution of the CFC uptake in the intermediate water, whereas the latitudinal distribution is mainly controlled by the subgrid-scale parameterization. Models with isopycnal diffusion and eddy-induced velocity parameterization produce more realistic intermediate water ventilation. Deep and bottom water ventilation also varies substantially between the models. Models coupled to a sea-ice model systematically provide more realistic AABW formation source region; however these same models also largely overestimate AABW ventilation if no specific parameterization of brine rejection during sea-ice formation is included. In the North Pacific Ocean, all models exhibit a systematic large underestimation of the CFC uptake in the thermocline of the subtropical gyre, while no systematic difference toward the observations is found in the subpolar gyre. In the North Atlantic Ocean, the CFC uptake is globally underestimated in subsurface. In the deep ocean, all but the adjoint model, failed to produce the two recently ventilated branches observed in the North Atlantic Deep Water (NADW). Furthermore, simulated transport in the Deep Western Boundary Current (DWBC) is too sluggish in all but the isopycnal model, where it is too rapid. (C) 2002 Elsevier Science Ltd. All rights reserved. |
format |
Article in Journal/Newspaper |
author |
Dutay, J.-C. Bullister, J. L. Doney, S. C. Orr, J. C. Najjar, R. Caldeira, K. Campin, J.-M. Drange, H. Follows, M. Gao, Y. Gruber, N. Hecht, M. W. Ishida, A. Joos, F. Lindsay, K. Madec, G. Maier-Reimer, E. Marshall, J. C. Matear, R. J. Monfray, P. Mouchet, Anne Plattner, G.-K. Sarmiento, J. Schlitzer, R. Slater, R. Totterdell, I. J. Weirig, M.-F. Yamanaka, Y. Yool, A. |
author_facet |
Dutay, J.-C. Bullister, J. L. Doney, S. C. Orr, J. C. Najjar, R. Caldeira, K. Campin, J.-M. Drange, H. Follows, M. Gao, Y. Gruber, N. Hecht, M. W. Ishida, A. Joos, F. Lindsay, K. Madec, G. Maier-Reimer, E. Marshall, J. C. Matear, R. J. Monfray, P. Mouchet, Anne Plattner, G.-K. Sarmiento, J. Schlitzer, R. Slater, R. Totterdell, I. J. Weirig, M.-F. Yamanaka, Y. Yool, A. |
author_sort |
Dutay, J.-C. |
title |
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
title_short |
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
title_full |
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
title_fullStr |
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
title_full_unstemmed |
Evaluation of ocean model ventilation with CFC-11: comparison of 13 global ocean models |
title_sort |
evaluation of ocean model ventilation with cfc-11: comparison of 13 global ocean models |
publisher |
Elsevier |
publishDate |
2002 |
url |
https://orbi.uliege.be/handle/2268/61280 https://doi.org/10.1016/S1463-5003(01)00013-0 |
geographic |
Southern Ocean Pacific |
geographic_facet |
Southern Ocean Pacific |
genre |
NADW North Atlantic Deep Water North Atlantic Sea ice Southern Ocean |
genre_facet |
NADW North Atlantic Deep Water North Atlantic Sea ice Southern Ocean |
op_source |
Ocean Modelling, 4 (2), 89-120 (2002) |
op_relation |
urn:issn:1463-5003 urn:issn:1463-5011 https://orbi.uliege.be/handle/2268/61280 info:hdl:2268/61280 |
op_rights |
restricted access http://purl.org/coar/access_right/c_16ec info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1016/S1463-5003(01)00013-0 |
container_title |
Ocean Modelling |
container_volume |
4 |
container_issue |
2 |
container_start_page |
89 |
op_container_end_page |
120 |
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1812815834874118144 |