The transient response of atmospheric and oceanic heat transports to anthropogenic warming
Model projections of the near-future response to anthropogenic warming show compensation between meridional heat transports by the atmosphere (AHT) and ocean (OHT) that are largely symmetric about the equator(1-3), the causes of which remain unclear. Here, using both the Coupled Model Intercompariso...
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Online Access: | https://doi.org/10.1038/s41558-018-0387-3 |
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ftncar:oai:drupal-site.org:articles_22360 2023-09-05T13:23:30+02:00 The transient response of atmospheric and oceanic heat transports to anthropogenic warming He, Chengfei (author) Liu, Zhengyu (author) Hu, Aixue (author) 2019-01-28 https://doi.org/10.1038/s41558-018-0387-3 en eng Nature Climate Change--Nat. Clim. Chang.--1758-678X--1758-6798 articles:22360 ark:/85065/d73t9m8s doi:10.1038/s41558-018-0387-3 Copyright 2019 Springer Nature. article Text 2019 ftncar https://doi.org/10.1038/s41558-018-0387-3 2023-08-14T18:50:16Z Model projections of the near-future response to anthropogenic warming show compensation between meridional heat transports by the atmosphere (AHT) and ocean (OHT) that are largely symmetric about the equator(1-3), the causes of which remain unclear. Here, using both the Coupled Model Intercomparison Project Phase 5 archive and Community Climate System Model version 4 simulations forced with Representative Concentration Pathway 8.5 to 2600, we show that this transient compensation-specifically during the initial stage of warming-is caused by combined changes in both atmospheric and oceanic circulations. In particular, it is caused by a southward OHT associated with a weakened Atlantic Meridional Overturning Circulation, a northward apparent OHT associated with an ocean heat storage maximum around the Southern Ocean, and a symmetric coupled response of the Hadley and Subtropical cells in the Indo-Pacific basin. It is further shown that the true advective OHT differs from the flux-inferred OHT in the initial warming due to the inhomogeneous responses of ocean heat storage. These results provide new insights to further our understanding of future heat transport responses, and thereby global climatic processes such as the redistribution of ocean heat. Article in Journal/Newspaper Southern Ocean OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) Pacific Southern Ocean Nature Climate Change 9 3 222 226 |
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Open Polar |
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OpenSky (NCAR/UCAR - National Center for Atmospheric Research/University Corporation for Atmospheric Research) |
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ftncar |
language |
English |
description |
Model projections of the near-future response to anthropogenic warming show compensation between meridional heat transports by the atmosphere (AHT) and ocean (OHT) that are largely symmetric about the equator(1-3), the causes of which remain unclear. Here, using both the Coupled Model Intercomparison Project Phase 5 archive and Community Climate System Model version 4 simulations forced with Representative Concentration Pathway 8.5 to 2600, we show that this transient compensation-specifically during the initial stage of warming-is caused by combined changes in both atmospheric and oceanic circulations. In particular, it is caused by a southward OHT associated with a weakened Atlantic Meridional Overturning Circulation, a northward apparent OHT associated with an ocean heat storage maximum around the Southern Ocean, and a symmetric coupled response of the Hadley and Subtropical cells in the Indo-Pacific basin. It is further shown that the true advective OHT differs from the flux-inferred OHT in the initial warming due to the inhomogeneous responses of ocean heat storage. These results provide new insights to further our understanding of future heat transport responses, and thereby global climatic processes such as the redistribution of ocean heat. |
author2 |
He, Chengfei (author) Liu, Zhengyu (author) Hu, Aixue (author) |
format |
Article in Journal/Newspaper |
title |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
spellingShingle |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
title_short |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
title_full |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
title_fullStr |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
title_full_unstemmed |
The transient response of atmospheric and oceanic heat transports to anthropogenic warming |
title_sort |
transient response of atmospheric and oceanic heat transports to anthropogenic warming |
publishDate |
2019 |
url |
https://doi.org/10.1038/s41558-018-0387-3 |
geographic |
Pacific Southern Ocean |
geographic_facet |
Pacific Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_relation |
Nature Climate Change--Nat. Clim. Chang.--1758-678X--1758-6798 articles:22360 ark:/85065/d73t9m8s doi:10.1038/s41558-018-0387-3 |
op_rights |
Copyright 2019 Springer Nature. |
op_doi |
https://doi.org/10.1038/s41558-018-0387-3 |
container_title |
Nature Climate Change |
container_volume |
9 |
container_issue |
3 |
container_start_page |
222 |
op_container_end_page |
226 |
_version_ |
1776204091122253824 |