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...
Published in: | Geophysical Research Letters |
---|---|
Other Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
American Geophysical Union
2016
|
Subjects: | |
Online Access: | http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-732 https://doi.org/10.1002/2015GL067584 |
id |
ftncar:oai:drupal-site.org:articles_18306 |
---|---|
record_format |
openpolar |
spelling |
ftncar:oai:drupal-site.org:articles_18306 2023-09-05T13:22:13+02:00 Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection Nevison, C. (author) Manizza, M. (author) Keeling, R. (author) Stephens, Britton (author) Bent, Jonathan (author) Dunne, J. (author) Ilyina, T. (author) Long, Matthew (author) Resplandy, L. (author) Tjiputra, J. (author) Yukimoto, S. (author) 2016-03-16 application/pdf http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-732 https://doi.org/10.1002/2015GL067584 en eng American Geophysical Union Geophysical Research Letters articles:18306 ark:/85065/d7th8p8n http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-732 doi:10.1002/2015GL067584 Copyright 2016 American Geophysical Union. Text article 2016 ftncar https://doi.org/10.1002/2015GL067584 2023-08-14T18:43:32Z 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. Article in Journal/Newspaper Ocean acidification Southern Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Southern Ocean Geophysical Research Letters 43 5 2077 2085 |
institution |
Open Polar |
collection |
OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
op_collection_id |
ftncar |
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. |
author2 |
Nevison, C. (author) Manizza, M. (author) Keeling, R. (author) Stephens, Britton (author) Bent, Jonathan (author) Dunne, J. (author) Ilyina, T. (author) Long, Matthew (author) Resplandy, L. (author) Tjiputra, J. (author) Yukimoto, S. (author) |
format |
Article in Journal/Newspaper |
title |
Evaluating CMIP5 ocean biogeochemistry and Southern Ocean carbon uptake using atmospheric potential oxygen: Present-day performance and future projection |
spellingShingle |
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 |
publisher |
American Geophysical Union |
publishDate |
2016 |
url |
http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-732 https://doi.org/10.1002/2015GL067584 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Ocean acidification Southern Ocean |
genre_facet |
Ocean acidification Southern Ocean |
op_relation |
Geophysical Research Letters articles:18306 ark:/85065/d7th8p8n http://nldr.library.ucar.edu/repository/collections/OSGC-000-000-022-732 doi:10.1002/2015GL067584 |
op_rights |
Copyright 2016 American Geophysical Union. |
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_ |
1776202749963141120 |