Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP
The diversity of surface-flux perturbations, especially for heat-flux perturbations, notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system models. However, when imposing heat-flux perturbations on the models, strong...
Published in: | Advances in Climate Change Research |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
KeAi Communications Co., Ltd.
2023
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.accre.2023.08.005 https://doaj.org/article/91120c45b45f47c38bfe14bd8988b458 |
id |
ftdoajarticles:oai:doaj.org/article:91120c45b45f47c38bfe14bd8988b458 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:91120c45b45f47c38bfe14bd8988b458 2023-10-09T21:49:34+02:00 Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP Wen-Yu Yin Xin Gao Run Guo Peng Fan Guang-Qing Zhou 2023-08-01T00:00:00Z https://doi.org/10.1016/j.accre.2023.08.005 https://doaj.org/article/91120c45b45f47c38bfe14bd8988b458 EN eng KeAi Communications Co., Ltd. http://www.sciencedirect.com/science/article/pii/S1674927823000941 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2023.08.005 https://doaj.org/article/91120c45b45f47c38bfe14bd8988b458 Advances in Climate Change Research, Vol 14, Iss 4, Pp 546-559 (2023) Heat-flux perturbation Ocean heat uptake North Atlantic Atlantic meridional overturning circulation Coupled general circulation model Meteorology. Climatology QC851-999 Social sciences (General) H1-99 article 2023 ftdoajarticles https://doi.org/10.1016/j.accre.2023.08.005 2023-09-24T00:35:28Z The diversity of surface-flux perturbations, especially for heat-flux perturbations, notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system models. However, when imposing heat-flux perturbations on the models, strong feedback persists between the atmosphere and the ocean, resulting in nearly doubled heat-flux perturbation over the North Atlantic (NA). Herein, quantitative evaluation of the influences of magnitude change of heat-flux perturbations over the NA on the changes in the Atlantic Meridional Overturning Circulation (AMOC), ocean heat uptake (OHU) and dynamic sea level (DSL) has been conducted by analysis of eight coupled model responses to the heat-flux perturbation experiments in the Flux-Anomaly-Forced Model Inter-comparison Project. It has been demonstrated that the magnitude of the AMOC change is extremely sensitive to the magnitude change of imposed NA heat-flux perturbation, and the weakening amplitude of the AMOC is nearly halved as the imposed heat-flux perturbation F is halved over the NA. The most remarkable responses of both DSL and OHU to the magnitude changes of NA heat-flux perturbation have been primarily found in the Atlantic and Arctic basins, especially for the NA region. Both the added ocean heat uptake (OHUa) and redistributed ocean heat uptake (OHUr) play key roles in OHU changes among the various NA heat-flux perturbation experiments. The magnitude change of NA-mean OHUa is almost linearly related to the imposed NA heat-flux perturbation, while the magnitude change of NA-mean OHUr, which is primarily caused by AMOC change and redistributed heat flux, is not proportional to the imposed NA heat-flux perturbation. There is a nearly linear relationship between the magnitude of AMOC change and the OHUr in tropical regions, including the regions in the low-latitude South Atlantic, the tropical Pacific Ocean and the Indian Ocean. Article in Journal/Newspaper Arctic Global warming North Atlantic Directory of Open Access Journals: DOAJ Articles Arctic Indian Pacific Advances in Climate Change Research 14 4 546 559 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Heat-flux perturbation Ocean heat uptake North Atlantic Atlantic meridional overturning circulation Coupled general circulation model Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
spellingShingle |
Heat-flux perturbation Ocean heat uptake North Atlantic Atlantic meridional overturning circulation Coupled general circulation model Meteorology. Climatology QC851-999 Social sciences (General) H1-99 Wen-Yu Yin Xin Gao Run Guo Peng Fan Guang-Qing Zhou Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
topic_facet |
Heat-flux perturbation Ocean heat uptake North Atlantic Atlantic meridional overturning circulation Coupled general circulation model Meteorology. Climatology QC851-999 Social sciences (General) H1-99 |
description |
The diversity of surface-flux perturbations, especially for heat-flux perturbations, notably leads to uncertainties surrounding the responses of ocean climate under global warming scenarios projected by climate/Earth system models. However, when imposing heat-flux perturbations on the models, strong feedback persists between the atmosphere and the ocean, resulting in nearly doubled heat-flux perturbation over the North Atlantic (NA). Herein, quantitative evaluation of the influences of magnitude change of heat-flux perturbations over the NA on the changes in the Atlantic Meridional Overturning Circulation (AMOC), ocean heat uptake (OHU) and dynamic sea level (DSL) has been conducted by analysis of eight coupled model responses to the heat-flux perturbation experiments in the Flux-Anomaly-Forced Model Inter-comparison Project. It has been demonstrated that the magnitude of the AMOC change is extremely sensitive to the magnitude change of imposed NA heat-flux perturbation, and the weakening amplitude of the AMOC is nearly halved as the imposed heat-flux perturbation F is halved over the NA. The most remarkable responses of both DSL and OHU to the magnitude changes of NA heat-flux perturbation have been primarily found in the Atlantic and Arctic basins, especially for the NA region. Both the added ocean heat uptake (OHUa) and redistributed ocean heat uptake (OHUr) play key roles in OHU changes among the various NA heat-flux perturbation experiments. The magnitude change of NA-mean OHUa is almost linearly related to the imposed NA heat-flux perturbation, while the magnitude change of NA-mean OHUr, which is primarily caused by AMOC change and redistributed heat flux, is not proportional to the imposed NA heat-flux perturbation. There is a nearly linear relationship between the magnitude of AMOC change and the OHUr in tropical regions, including the regions in the low-latitude South Atlantic, the tropical Pacific Ocean and the Indian Ocean. |
format |
Article in Journal/Newspaper |
author |
Wen-Yu Yin Xin Gao Run Guo Peng Fan Guang-Qing Zhou |
author_facet |
Wen-Yu Yin Xin Gao Run Guo Peng Fan Guang-Qing Zhou |
author_sort |
Wen-Yu Yin |
title |
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
title_short |
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
title_full |
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
title_fullStr |
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
title_full_unstemmed |
Response of ocean climate to different heat-flux perturbations over the North Atlantic in FAFMIP |
title_sort |
response of ocean climate to different heat-flux perturbations over the north atlantic in fafmip |
publisher |
KeAi Communications Co., Ltd. |
publishDate |
2023 |
url |
https://doi.org/10.1016/j.accre.2023.08.005 https://doaj.org/article/91120c45b45f47c38bfe14bd8988b458 |
geographic |
Arctic Indian Pacific |
geographic_facet |
Arctic Indian Pacific |
genre |
Arctic Global warming North Atlantic |
genre_facet |
Arctic Global warming North Atlantic |
op_source |
Advances in Climate Change Research, Vol 14, Iss 4, Pp 546-559 (2023) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S1674927823000941 https://doaj.org/toc/1674-9278 1674-9278 doi:10.1016/j.accre.2023.08.005 https://doaj.org/article/91120c45b45f47c38bfe14bd8988b458 |
op_doi |
https://doi.org/10.1016/j.accre.2023.08.005 |
container_title |
Advances in Climate Change Research |
container_volume |
14 |
container_issue |
4 |
container_start_page |
546 |
op_container_end_page |
559 |
_version_ |
1779312591143698432 |