Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection
Observed seasonal cycles in atmospheric potential oxygen (APO~O2+1.1 CO2) were used to evaluate eight ocean biogeochemistry models from the Coupled Model Intercomparison Project (CMIP5). Model APO seasonal cycles were computed from the CMIP5 air-sea O2 and CO2 fluxes and compared to observations at...
Published in: | Geophysical Research Letters |
---|---|
Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2016
|
Subjects: | |
Online Access: | http://hdl.handle.net/11858/00-001M-0000-002A-0F78-6 http://hdl.handle.net/11858/00-001M-0000-002D-3EAC-1 |
id |
ftpubman:oai:pure.mpg.de:item_2260172 |
---|---|
record_format |
openpolar |
spelling |
ftpubman:oai:pure.mpg.de:item_2260172 2023-08-20T04:08:59+02:00 Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection Nevison, C. Manizza, M. Keeling, R. Stephens, B. Bent, J. Dunne, J. Ilyina, T. Long, M. Resplandy, L. Tjiputra, J. Yukimoto, S. 2016-03-05 application/pdf http://hdl.handle.net/11858/00-001M-0000-002A-0F78-6 http://hdl.handle.net/11858/00-001M-0000-002D-3EAC-1 eng eng info:eu-repo/grantAgreement/EC/H2020/641816 info:eu-repo/semantics/altIdentifier/urn/http://www.scopus.com/inward/record.url?eid=2-s2.0-84959455877&partnerID=40&md5=99051f17f279a5cb4f46bf6f583038aa info:eu-repo/semantics/altIdentifier/doi/10.1002/2015GL067584 http://hdl.handle.net/11858/00-001M-0000-002A-0F78-6 http://hdl.handle.net/11858/00-001M-0000-002D-3EAC-1 info:eu-repo/semantics/openAccess Geophysical Research Letters info:eu-repo/semantics/article 2016 ftpubman https://doi.org/10.1002/2015GL067584 2023-08-01T22:35:05Z Observed seasonal cycles in atmospheric potential oxygen (APO~O2+1.1 CO2) were used to evaluate eight ocean biogeochemistry models from the Coupled Model Intercomparison Project (CMIP5). Model APO seasonal cycles were computed from the CMIP5 air-sea O2 and CO2 fluxes and compared to observations at three Southern Hemisphere monitoring sites. Four of the models captured either the observed APO seasonal amplitude or phasing relatively well, while the other four did not. Many models had an unrealistic seasonal phasing or amplitude of the CO2 flux, which in turn influenced APO. By 2100 under RCP8.5, the models projected little change in the O2 component of APO but large changes in the seasonality of the CO2 component associated with ocean acidification. The models with poorer performance on present-day APO tended to project larger net carbon uptake in the Southern Ocean, both today and in 2100. ©2016. American Geophysical Union. Article in Journal/Newspaper Ocean acidification Southern Ocean Max Planck Society: MPG.PuRe Southern Ocean Geophysical Research Letters 43 5 2077 2085 |
institution |
Open Polar |
collection |
Max Planck Society: MPG.PuRe |
op_collection_id |
ftpubman |
language |
English |
description |
Observed seasonal cycles in atmospheric potential oxygen (APO~O2+1.1 CO2) were used to evaluate eight ocean biogeochemistry models from the Coupled Model Intercomparison Project (CMIP5). Model APO seasonal cycles were computed from the CMIP5 air-sea O2 and CO2 fluxes and compared to observations at three Southern Hemisphere monitoring sites. Four of the models captured either the observed APO seasonal amplitude or phasing relatively well, while the other four did not. Many models had an unrealistic seasonal phasing or amplitude of the CO2 flux, which in turn influenced APO. By 2100 under RCP8.5, the models projected little change in the O2 component of APO but large changes in the seasonality of the CO2 component associated with ocean acidification. The models with poorer performance on present-day APO tended to project larger net carbon uptake in the Southern Ocean, both today and in 2100. ©2016. American Geophysical Union. |
format |
Article in Journal/Newspaper |
author |
Nevison, C. Manizza, M. Keeling, R. Stephens, B. Bent, J. Dunne, J. Ilyina, T. Long, M. Resplandy, L. Tjiputra, J. Yukimoto, S. |
spellingShingle |
Nevison, C. Manizza, M. Keeling, R. Stephens, B. Bent, J. Dunne, J. Ilyina, T. Long, M. Resplandy, L. Tjiputra, J. Yukimoto, S. Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
author_facet |
Nevison, C. Manizza, M. Keeling, R. Stephens, B. Bent, J. Dunne, J. Ilyina, T. Long, M. Resplandy, L. Tjiputra, J. Yukimoto, S. |
author_sort |
Nevison, C. |
title |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
title_short |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
title_full |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
title_fullStr |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
title_full_unstemmed |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
title_sort |
evaluating cmip5 ocean biogeochemistry and southern ocean carbon uptake using atmospheric potential oxygen: present-day performance and future projection |
publishDate |
2016 |
url |
http://hdl.handle.net/11858/00-001M-0000-002A-0F78-6 http://hdl.handle.net/11858/00-001M-0000-002D-3EAC-1 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Ocean acidification Southern Ocean |
genre_facet |
Ocean acidification Southern Ocean |
op_source |
Geophysical Research Letters |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/641816 info:eu-repo/semantics/altIdentifier/urn/http://www.scopus.com/inward/record.url?eid=2-s2.0-84959455877&partnerID=40&md5=99051f17f279a5cb4f46bf6f583038aa info:eu-repo/semantics/altIdentifier/doi/10.1002/2015GL067584 http://hdl.handle.net/11858/00-001M-0000-002A-0F78-6 http://hdl.handle.net/11858/00-001M-0000-002D-3EAC-1 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2015GL067584 |
container_title |
Geophysical Research Letters |
container_volume |
43 |
container_issue |
5 |
container_start_page |
2077 |
op_container_end_page |
2085 |
_version_ |
1774721612251136000 |