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Extratropical Cooling, Interhemispheric Thermal Gradients, and Tropical Climate Change

Extratropical Cooling, Interhemispheric Thermal Gradients, and Tropical Climate Change Recent studies suggest the existence of a global atmospheric teleconnection of extratropical cooling to the tropical rainfall climate, mediated through the development of a thermal contrast between the hemispheres—an interhemispheric thermal gradient. This teleconnection has been largely motivated by studies that show a global synchronization of rapid climate change during abrupt climate changes of the last glacial period, in addition to attribution studies of twentieth-century Sahel drought and studies that examined the climate impacts of anthropogenic aerosols. This research has led to interesting developments in atmospheric dynamics of the underlying mechanisms and in applications toward understanding past and present tropical climate change. The emerging teleconnection hypothesis promises to offer new insights into understanding future patterns of tropical rainfall changes due to interhemispheric thermal gradients from greenhouse warming, aerosols, and land-use change. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Annual Review of Earth and Planetary Sciences Annual Reviews

Extratropical Cooling, Interhemispheric Thermal Gradients, and Tropical Climate Change

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References (112)

Publisher
Annual Reviews
Copyright
Copyright © 2012 by Annual Reviews. All rights reserved
ISSN
0084-6597
eISSN
1545-4495
DOI
10.1146/annurev-earth-042711-105545
Publisher site
See Article on Publisher Site

Abstract

Recent studies suggest the existence of a global atmospheric teleconnection of extratropical cooling to the tropical rainfall climate, mediated through the development of a thermal contrast between the hemispheres—an interhemispheric thermal gradient. This teleconnection has been largely motivated by studies that show a global synchronization of rapid climate change during abrupt climate changes of the last glacial period, in addition to attribution studies of twentieth-century Sahel drought and studies that examined the climate impacts of anthropogenic aerosols. This research has led to interesting developments in atmospheric dynamics of the underlying mechanisms and in applications toward understanding past and present tropical climate change. The emerging teleconnection hypothesis promises to offer new insights into understanding future patterns of tropical rainfall changes due to interhemispheric thermal gradients from greenhouse warming, aerosols, and land-use change.

Journal

Annual Review of Earth and Planetary SciencesAnnual Reviews

Published: May 30, 2012

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