Tropical Pacific influences on the North Atlantic Thermohaline Circulation
Most global climate models simulate a weakening of the North Atlantic Thermohaline Circulation (THC) in response to enhanced greenhouse warming. Both surface warming and freshening in high latitudes, the so-called sinking region, contribute to the weakening of the THC. Some models simulate even a co...
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ftingv:oai:www.earth-prints.org:2122/981 2024-06-09T07:48:05+00:00 Tropical Pacific influences on the North Atlantic Thermohaline Circulation Latif, M. Latif, M.; Max-Planck-Institut für Meteorologie, Hamburg, Germany Max-Planck-Institut für Meteorologie, Hamburg, Germany 2003 577444 bytes application/pdf http://hdl.handle.net/2122/981 en eng INGV Annals of Geophysics 1/46 (2003) http://hdl.handle.net/2122/981 open thermohaline circulation air-sea 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 03. Hydrosphere::03.03. Physical::03.03.02. General circulation article 2003 ftingv 2024-05-15T08:04:29Z Most global climate models simulate a weakening of the North Atlantic Thermohaline Circulation (THC) in response to enhanced greenhouse warming. Both surface warming and freshening in high latitudes, the so-called sinking region, contribute to the weakening of the THC. Some models simulate even a complete breakdown of the THC at sufficiently strong forcing. Here results from a state-of-the-art global climate model are presented that does not simulate a weakening of the THC in response to greenhouse warming. Large-scale air-sea interactions in the tropics, similar to those operating during present-day El Niños, lead to anomalously high salinities in the tropical Atlantic. These are advected into the sinking region, thereby increasing the surface density and compensating the effects of the local warming and freshening. The results of the model study are corroborated by the analysis of observations. Published JCR Journal open Article in Journal/Newspaper North Atlantic North atlantic Thermohaline circulation Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) Pacific |
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Open Polar |
collection |
Earth-Prints (Istituto Nazionale di Geofisica e Vulcanologia) |
op_collection_id |
ftingv |
language |
English |
topic |
thermohaline circulation air-sea 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 03. Hydrosphere::03.03. Physical::03.03.02. General circulation |
spellingShingle |
thermohaline circulation air-sea 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 03. Hydrosphere::03.03. Physical::03.03.02. General circulation Latif, M. Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
topic_facet |
thermohaline circulation air-sea 01. Atmosphere::01.01. Atmosphere::01.01.02. Climate 03. Hydrosphere::03.03. Physical::03.03.02. General circulation |
description |
Most global climate models simulate a weakening of the North Atlantic Thermohaline Circulation (THC) in response to enhanced greenhouse warming. Both surface warming and freshening in high latitudes, the so-called sinking region, contribute to the weakening of the THC. Some models simulate even a complete breakdown of the THC at sufficiently strong forcing. Here results from a state-of-the-art global climate model are presented that does not simulate a weakening of the THC in response to greenhouse warming. Large-scale air-sea interactions in the tropics, similar to those operating during present-day El Niños, lead to anomalously high salinities in the tropical Atlantic. These are advected into the sinking region, thereby increasing the surface density and compensating the effects of the local warming and freshening. The results of the model study are corroborated by the analysis of observations. Published JCR Journal open |
author2 |
Latif, M.; Max-Planck-Institut für Meteorologie, Hamburg, Germany Max-Planck-Institut für Meteorologie, Hamburg, Germany |
format |
Article in Journal/Newspaper |
author |
Latif, M. |
author_facet |
Latif, M. |
author_sort |
Latif, M. |
title |
Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
title_short |
Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
title_full |
Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
title_fullStr |
Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
title_full_unstemmed |
Tropical Pacific influences on the North Atlantic Thermohaline Circulation |
title_sort |
tropical pacific influences on the north atlantic thermohaline circulation |
publisher |
INGV |
publishDate |
2003 |
url |
http://hdl.handle.net/2122/981 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North atlantic Thermohaline circulation |
genre_facet |
North Atlantic North atlantic Thermohaline circulation |
op_relation |
Annals of Geophysics 1/46 (2003) http://hdl.handle.net/2122/981 |
op_rights |
open |
_version_ |
1801379640073256960 |