The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) aims to investigate the spread in simulations of sea-level and ocean climate change in response to CO2 forcing by atmosphere–ocean general circulation models (AOGCMs). It is particularly motivated by the uncertainties in projections of o...
Published in: | Geoscientific Model Development |
---|---|
Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Copernicus Publications
2016
|
Subjects: | |
Online Access: | https://doi.org/10.5194/gmd-9-3993-2016 https://noa.gwlb.de/receive/cop_mods_00011235 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011192/gmd-9-3993-2016.pdf https://gmd.copernicus.org/articles/9/3993/2016/gmd-9-3993-2016.pdf |
id |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00011235 |
---|---|
record_format |
openpolar |
spelling |
ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00011235 2023-05-15T13:34:49+02:00 The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing Gregory, Jonathan M. Bouttes, Nathaelle Griffies, Stephen M. Haak, Helmuth Hurlin, William J. Jungclaus, Johann Kelley, Maxwell Lee, Warren G. Marshall, John Romanou, Anastasia Saenko, Oleg A. Stammer, Detlef Winton, Michael 2016-11 electronic https://doi.org/10.5194/gmd-9-3993-2016 https://noa.gwlb.de/receive/cop_mods_00011235 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011192/gmd-9-3993-2016.pdf https://gmd.copernicus.org/articles/9/3993/2016/gmd-9-3993-2016.pdf eng eng Copernicus Publications Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-9-3993-2016 https://noa.gwlb.de/receive/cop_mods_00011235 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011192/gmd-9-3993-2016.pdf https://gmd.copernicus.org/articles/9/3993/2016/gmd-9-3993-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/gmd-9-3993-2016 2022-02-08T22:56:37Z The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) aims to investigate the spread in simulations of sea-level and ocean climate change in response to CO2 forcing by atmosphere–ocean general circulation models (AOGCMs). It is particularly motivated by the uncertainties in projections of ocean heat uptake, global-mean sea-level rise due to thermal expansion and the geographical patterns of sea-level change due to ocean density and circulation change. FAFMIP has three tier-1 experiments, in which prescribed surface flux perturbations of momentum, heat and freshwater respectively are applied to the ocean in separate AOGCM simulations. All other conditions are as in the pre-industrial control. The prescribed fields are typical of pattern and magnitude of changes in these fluxes projected by AOGCMs for doubled CO2 concentration. Five groups have tested the experimental design with existing AOGCMs. Their results show diversity in the pattern and magnitude of changes, with some common qualitative features. Heat and water flux perturbation cause the dipole in sea-level change in the North Atlantic, while momentum and heat flux perturbation cause the gradient across the Antarctic Circumpolar Current. The Atlantic meridional overturning circulation (AMOC) declines in response to the heat flux perturbation, and there is a strong positive feedback on this effect due to the consequent cooling of sea-surface temperature in the North Atlantic, which enhances the local heat input to the ocean. The momentum and water flux perturbations do not substantially affect the AMOC. Heat is taken up largely as a passive tracer in the Southern Ocean, which is the region of greatest heat input, while the weakening of the AMOC causes redistribution of heat towards lower latitudes. Future analysis of these and other phenomena with the wider range of CMIP6 FAFMIP AOGCMs will benefit from new diagnostics of temperature and salinity tendencies, which will enable investigation of the model spread in behaviour in terms of physical processes as formulated in the models. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic Southern Ocean The Antarctic Geoscientific Model Development 9 11 3993 4017 |
institution |
Open Polar |
collection |
Niedersächsisches Online-Archiv NOA |
op_collection_id |
ftnonlinearchiv |
language |
English |
topic |
article Verlagsveröffentlichung |
spellingShingle |
article Verlagsveröffentlichung Gregory, Jonathan M. Bouttes, Nathaelle Griffies, Stephen M. Haak, Helmuth Hurlin, William J. Jungclaus, Johann Kelley, Maxwell Lee, Warren G. Marshall, John Romanou, Anastasia Saenko, Oleg A. Stammer, Detlef Winton, Michael The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
topic_facet |
article Verlagsveröffentlichung |
description |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) aims to investigate the spread in simulations of sea-level and ocean climate change in response to CO2 forcing by atmosphere–ocean general circulation models (AOGCMs). It is particularly motivated by the uncertainties in projections of ocean heat uptake, global-mean sea-level rise due to thermal expansion and the geographical patterns of sea-level change due to ocean density and circulation change. FAFMIP has three tier-1 experiments, in which prescribed surface flux perturbations of momentum, heat and freshwater respectively are applied to the ocean in separate AOGCM simulations. All other conditions are as in the pre-industrial control. The prescribed fields are typical of pattern and magnitude of changes in these fluxes projected by AOGCMs for doubled CO2 concentration. Five groups have tested the experimental design with existing AOGCMs. Their results show diversity in the pattern and magnitude of changes, with some common qualitative features. Heat and water flux perturbation cause the dipole in sea-level change in the North Atlantic, while momentum and heat flux perturbation cause the gradient across the Antarctic Circumpolar Current. The Atlantic meridional overturning circulation (AMOC) declines in response to the heat flux perturbation, and there is a strong positive feedback on this effect due to the consequent cooling of sea-surface temperature in the North Atlantic, which enhances the local heat input to the ocean. The momentum and water flux perturbations do not substantially affect the AMOC. Heat is taken up largely as a passive tracer in the Southern Ocean, which is the region of greatest heat input, while the weakening of the AMOC causes redistribution of heat towards lower latitudes. Future analysis of these and other phenomena with the wider range of CMIP6 FAFMIP AOGCMs will benefit from new diagnostics of temperature and salinity tendencies, which will enable investigation of the model spread in behaviour in terms of physical processes as formulated in the models. |
format |
Article in Journal/Newspaper |
author |
Gregory, Jonathan M. Bouttes, Nathaelle Griffies, Stephen M. Haak, Helmuth Hurlin, William J. Jungclaus, Johann Kelley, Maxwell Lee, Warren G. Marshall, John Romanou, Anastasia Saenko, Oleg A. Stammer, Detlef Winton, Michael |
author_facet |
Gregory, Jonathan M. Bouttes, Nathaelle Griffies, Stephen M. Haak, Helmuth Hurlin, William J. Jungclaus, Johann Kelley, Maxwell Lee, Warren G. Marshall, John Romanou, Anastasia Saenko, Oleg A. Stammer, Detlef Winton, Michael |
author_sort |
Gregory, Jonathan M. |
title |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
title_short |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
title_full |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
title_fullStr |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
title_full_unstemmed |
The Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) contribution to CMIP6: investigation of sea-level and ocean climate change in response to CO2 forcing |
title_sort |
flux-anomaly-forced model intercomparison project (fafmip) contribution to cmip6: investigation of sea-level and ocean climate change in response to co2 forcing |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/gmd-9-3993-2016 https://noa.gwlb.de/receive/cop_mods_00011235 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011192/gmd-9-3993-2016.pdf https://gmd.copernicus.org/articles/9/3993/2016/gmd-9-3993-2016.pdf |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic North Atlantic Southern Ocean |
genre_facet |
Antarc* Antarctic North Atlantic Southern Ocean |
op_relation |
Geoscientific Model Development -- http://www.bibliothek.uni-regensburg.de/ezeit/?2456725 -- http://www.geosci-model-dev.net/ -- 1991-9603 https://doi.org/10.5194/gmd-9-3993-2016 https://noa.gwlb.de/receive/cop_mods_00011235 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011192/gmd-9-3993-2016.pdf https://gmd.copernicus.org/articles/9/3993/2016/gmd-9-3993-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/gmd-9-3993-2016 |
container_title |
Geoscientific Model Development |
container_volume |
9 |
container_issue |
11 |
container_start_page |
3993 |
op_container_end_page |
4017 |
_version_ |
1766057862002376704 |