Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models
We have compared simulations of anthropogenic CO2 in the four three-dimensional ocean models that participated in the first phase of the Ocean Carbon-Cycle Model Intercomparison Project (OCMP), as means to identify their major differences. Simulated global uptake agrees to within ±19‰, giving a rang...
Published in: | Global Biogeochemical Cycles |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:32686 2023-05-15T18:24:44+02:00 Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models Orr, James C. Maier-Reimer, Ernst Mikolajewicz, Uwe Monfray, Patrick Sarmiento, Jorge L. Toggweiler, J. R. Taylor, Nicholas K. Palmer, Jonathan Gruber, Nicolas Sabine, Christopher L. Le Quéré, Corinne Key, Robert M. Boutin, Jacqueline 2001 https://ueaeprints.uea.ac.uk/id/eprint/32686/ https://doi.org/10.1029/2000GB001273 unknown Orr, James C., Maier-Reimer, Ernst, Mikolajewicz, Uwe, Monfray, Patrick, Sarmiento, Jorge L., Toggweiler, J. R., Taylor, Nicholas K., Palmer, Jonathan, Gruber, Nicolas, Sabine, Christopher L., Le Quéré, Corinne, Key, Robert M. and Boutin, Jacqueline (2001) Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models. Global Biogeochemical Cycles, 15 (1). pp. 43-60. ISSN 0886-6236 doi:10.1029/2000GB001273 Article PeerReviewed 2001 ftuniveastangl https://doi.org/10.1029/2000GB001273 2023-03-23T23:31:45Z We have compared simulations of anthropogenic CO2 in the four three-dimensional ocean models that participated in the first phase of the Ocean Carbon-Cycle Model Intercomparison Project (OCMP), as means to identify their major differences. Simulated global uptake agrees to within ±19‰, giving a range of 1.85±0.35 Pg Cyr1 for the 1980-1989 average. Regionally, the Southern Ocean dominates the present-day air-sea flux of anthropogenic CO2 in all models, with one third to one half of the global uptake occuring south of 30°S. The highest simulated total uptake in the Southern Ocean was 70‰ larger than the lowest. Comparison with recent data-based estimates of anthropogenic CO2 suggest that most of the models substantially overestimate storage in the Southern Ocean; elsewhere they generally underestimate storage by less than 20‰. Globally, the OCMIP models appear to bracket the real ocean's present uptake, based on comparison of regional data-based estimates of anthropogenic CO2 and bomb 14C. Column inventories of bomb 14C have become more similar to those for anthropogenic CO2 with the time that has elapsed between the Geochemical Ocean Sections Study (1970s) and World Ocean Circulation Experiment (1990s) global sampling campaigns. Our ability to evaluate simulated anthropogenic CO2 would improve if systematic errors associated with the data-based estimates could be provided regionally. Article in Journal/Newspaper Southern Ocean University of East Anglia: UEA Digital Repository Southern Ocean Global Biogeochemical Cycles 15 1 43 60 |
institution |
Open Polar |
collection |
University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
unknown |
description |
We have compared simulations of anthropogenic CO2 in the four three-dimensional ocean models that participated in the first phase of the Ocean Carbon-Cycle Model Intercomparison Project (OCMP), as means to identify their major differences. Simulated global uptake agrees to within ±19‰, giving a range of 1.85±0.35 Pg Cyr1 for the 1980-1989 average. Regionally, the Southern Ocean dominates the present-day air-sea flux of anthropogenic CO2 in all models, with one third to one half of the global uptake occuring south of 30°S. The highest simulated total uptake in the Southern Ocean was 70‰ larger than the lowest. Comparison with recent data-based estimates of anthropogenic CO2 suggest that most of the models substantially overestimate storage in the Southern Ocean; elsewhere they generally underestimate storage by less than 20‰. Globally, the OCMIP models appear to bracket the real ocean's present uptake, based on comparison of regional data-based estimates of anthropogenic CO2 and bomb 14C. Column inventories of bomb 14C have become more similar to those for anthropogenic CO2 with the time that has elapsed between the Geochemical Ocean Sections Study (1970s) and World Ocean Circulation Experiment (1990s) global sampling campaigns. Our ability to evaluate simulated anthropogenic CO2 would improve if systematic errors associated with the data-based estimates could be provided regionally. |
format |
Article in Journal/Newspaper |
author |
Orr, James C. Maier-Reimer, Ernst Mikolajewicz, Uwe Monfray, Patrick Sarmiento, Jorge L. Toggweiler, J. R. Taylor, Nicholas K. Palmer, Jonathan Gruber, Nicolas Sabine, Christopher L. Le Quéré, Corinne Key, Robert M. Boutin, Jacqueline |
spellingShingle |
Orr, James C. Maier-Reimer, Ernst Mikolajewicz, Uwe Monfray, Patrick Sarmiento, Jorge L. Toggweiler, J. R. Taylor, Nicholas K. Palmer, Jonathan Gruber, Nicolas Sabine, Christopher L. Le Quéré, Corinne Key, Robert M. Boutin, Jacqueline Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
author_facet |
Orr, James C. Maier-Reimer, Ernst Mikolajewicz, Uwe Monfray, Patrick Sarmiento, Jorge L. Toggweiler, J. R. Taylor, Nicholas K. Palmer, Jonathan Gruber, Nicolas Sabine, Christopher L. Le Quéré, Corinne Key, Robert M. Boutin, Jacqueline |
author_sort |
Orr, James C. |
title |
Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
title_short |
Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
title_full |
Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
title_fullStr |
Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
title_full_unstemmed |
Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
title_sort |
estimates of anthropogenic carbon uptake from four three-dimensional global ocean models |
publishDate |
2001 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/32686/ https://doi.org/10.1029/2000GB001273 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Orr, James C., Maier-Reimer, Ernst, Mikolajewicz, Uwe, Monfray, Patrick, Sarmiento, Jorge L., Toggweiler, J. R., Taylor, Nicholas K., Palmer, Jonathan, Gruber, Nicolas, Sabine, Christopher L., Le Quéré, Corinne, Key, Robert M. and Boutin, Jacqueline (2001) Estimates of anthropogenic carbon uptake from four three-dimensional global ocean models. Global Biogeochemical Cycles, 15 (1). pp. 43-60. ISSN 0886-6236 doi:10.1029/2000GB001273 |
op_doi |
https://doi.org/10.1029/2000GB001273 |
container_title |
Global Biogeochemical Cycles |
container_volume |
15 |
container_issue |
1 |
container_start_page |
43 |
op_container_end_page |
60 |
_version_ |
1766205605647745024 |