Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond
It is well established that centennial climate variability can be externally forced by, e.g., quasi-oscillatory fluctuations of the solar constant or slowly varying atmospheric aerosol concentrations in association with changes of volcanic activity. Climate models recently suggested that substantial...
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ftoceanrep:oai:oceanrep.geomar.de:20818 2023-05-15T13:48:22+02:00 Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond Latif, Mojib Martin, Torge Park, Wonsun Bordbar, Mohammed H. Chang, Chih-Pei Ghil, Michael Latif, Mojib Wallace, John M. 2015 text https://oceanrep.geomar.de/id/eprint/20818/ https://oceanrep.geomar.de/id/eprint/20818/1/Latif_etal_2013_chapterbook.pdf https://doi.org/10.1142/9789814579933_0007 en eng World Scientific Publishing Company https://oceanrep.geomar.de/id/eprint/20818/1/Latif_etal_2013_chapterbook.pdf Latif, M. , Martin, T. , Park, W. and Bordbar, M. H. (2015) Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond. In: Climate Change: Multidecadal and Beyond. , ed. by Chang, C. P., Ghil, M., Latif, M. and Wallace, J. M. World Scientific Series on Asia-Pacific Weather and Climate, 6 . World Scientific Publishing Company, Singapore, pp. 109-124. ISBN 978-981-4579-92-6 DOI 10.1142/9789814579933_0007 <https://doi.org/10.1142/9789814579933_0007>. doi:10.1142/9789814579933_0007 info:eu-repo/semantics/restrictedAccess Book chapter NonPeerReviewed 2015 ftoceanrep https://doi.org/10.1142/9789814579933_0007 2023-04-07T15:08:20Z It is well established that centennial climate variability can be externally forced by, e.g., quasi-oscillatory fluctuations of the solar constant or slowly varying atmospheric aerosol concentrations in association with changes of volcanic activity. Climate models recently suggested that substantial centennial variability can be also produced internally, and different competing mechanisms have been proposed. This paper deals with the internal centennial variability originating in the Southern Ocean Sector simulated by the Kiel Climate Model (KCM). In that model, the Southern Ocean centennial variability (SOCV) is linked to Weddell Sea deep convection activity and drives regional as well as global climate variations, as witnessed, for example, by coherent changes in Antarctic sea ice extent and globally averaged surface air temperature (SAT). Furthermore, the SOCV is associated with changes in deep Southern Ocean temperature in the KCM. Interestingly, a warming of the abyssal Southern Ocean has been observed during the recent decades, suggesting a contribution from SOCV. Another important impact of the SOCV in the model concerns the Atlantic Meridional Overturning Circulation (AMOC). The AMOC strengthens and deepens after the cessation of Weddell Sea deep convection and Antarctic Bottom Water (AABW) formation with a time delay of several decades to a century. Internal North Atlantic sea level variations can be as large as ± 15cm/century in the model with a strong contribution from the SOCV. Such regional sea level variations are of the same order of magnitude as the observed globally averaged 20th century sea level rise amounting to about 15-20cm. Finally, the KCM simulation suggests that the SOCV may have contributed to the current hiatus in global warming through an enhanced deep ocean heat uptake. Book Part Antarc* Antarctic North Atlantic Sea ice Southern Ocean Weddell Sea OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Southern Ocean Weddell Weddell Sea 109 124 |
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Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
It is well established that centennial climate variability can be externally forced by, e.g., quasi-oscillatory fluctuations of the solar constant or slowly varying atmospheric aerosol concentrations in association with changes of volcanic activity. Climate models recently suggested that substantial centennial variability can be also produced internally, and different competing mechanisms have been proposed. This paper deals with the internal centennial variability originating in the Southern Ocean Sector simulated by the Kiel Climate Model (KCM). In that model, the Southern Ocean centennial variability (SOCV) is linked to Weddell Sea deep convection activity and drives regional as well as global climate variations, as witnessed, for example, by coherent changes in Antarctic sea ice extent and globally averaged surface air temperature (SAT). Furthermore, the SOCV is associated with changes in deep Southern Ocean temperature in the KCM. Interestingly, a warming of the abyssal Southern Ocean has been observed during the recent decades, suggesting a contribution from SOCV. Another important impact of the SOCV in the model concerns the Atlantic Meridional Overturning Circulation (AMOC). The AMOC strengthens and deepens after the cessation of Weddell Sea deep convection and Antarctic Bottom Water (AABW) formation with a time delay of several decades to a century. Internal North Atlantic sea level variations can be as large as ± 15cm/century in the model with a strong contribution from the SOCV. Such regional sea level variations are of the same order of magnitude as the observed globally averaged 20th century sea level rise amounting to about 15-20cm. Finally, the KCM simulation suggests that the SOCV may have contributed to the current hiatus in global warming through an enhanced deep ocean heat uptake. |
author2 |
Chang, Chih-Pei Ghil, Michael Latif, Mojib Wallace, John M. |
format |
Book Part |
author |
Latif, Mojib Martin, Torge Park, Wonsun Bordbar, Mohammed H. |
spellingShingle |
Latif, Mojib Martin, Torge Park, Wonsun Bordbar, Mohammed H. Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
author_facet |
Latif, Mojib Martin, Torge Park, Wonsun Bordbar, Mohammed H. |
author_sort |
Latif, Mojib |
title |
Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
title_short |
Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
title_full |
Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
title_fullStr |
Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
title_full_unstemmed |
Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond |
title_sort |
internal southern ocean centennial variability: dynamics, impacts and implications for global warming. climate change: multidecadal and beyond |
publisher |
World Scientific Publishing Company |
publishDate |
2015 |
url |
https://oceanrep.geomar.de/id/eprint/20818/ https://oceanrep.geomar.de/id/eprint/20818/1/Latif_etal_2013_chapterbook.pdf https://doi.org/10.1142/9789814579933_0007 |
geographic |
Antarctic Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic North Atlantic Sea ice Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic North Atlantic Sea ice Southern Ocean Weddell Sea |
op_relation |
https://oceanrep.geomar.de/id/eprint/20818/1/Latif_etal_2013_chapterbook.pdf Latif, M. , Martin, T. , Park, W. and Bordbar, M. H. (2015) Internal Southern Ocean Centennial Variability: Dynamics, Impacts and Implications for Global Warming. Climate Change: Multidecadal and Beyond. In: Climate Change: Multidecadal and Beyond. , ed. by Chang, C. P., Ghil, M., Latif, M. and Wallace, J. M. World Scientific Series on Asia-Pacific Weather and Climate, 6 . World Scientific Publishing Company, Singapore, pp. 109-124. ISBN 978-981-4579-92-6 DOI 10.1142/9789814579933_0007 <https://doi.org/10.1142/9789814579933_0007>. doi:10.1142/9789814579933_0007 |
op_rights |
info:eu-repo/semantics/restrictedAccess |
op_doi |
https://doi.org/10.1142/9789814579933_0007 |
container_start_page |
109 |
op_container_end_page |
124 |
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1766249173161607168 |