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The Indian Ocean dipole - the unsung driver of climatic variability in East Africa.

Marchant, R., Mumbi, C., Behera, S. and Yamagata, T. (2007) The Indian Ocean dipole - the unsung driver of climatic variability in East Africa. African Journal of Ecology, 45 (1). pp. 4-16. ISSN 0141-6707

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Abstract

A growing body of evidence suggests that an independent ocean circulation system in the Indian Ocean, the Indian Ocean dipole (IOD), is partly responsible for driving climate variability of the surrounding landmasses. The IOD had traditionally been viewed as an artefact of the El Niño–Southern Oscillation (ENSO) system although increasingly the evidence is amassing that it is separate and distinct phenomenon. We review the causes of the IOD, how it develops within the Indian Ocean, the relationships with ENSO, and the consequences for East African climate dynamics and associated impacts on ecosystems, in particular along the Eastern Arc Mountains of Kenya and Tanzania. We evaluate current research initiatives focussed on characterizing and constraining the IOD and examine how effective these will be in determining climate change impacts on East African ecosystems and how such predictive capacity can be used in developing policy.

Item Type: Article
Institution: The University of York
Academic Units: The University of York > Environment (York)
Depositing User: York RAE Import
Date Deposited: 21 Aug 2009 13:19
Last Modified: 21 Aug 2009 13:19
Published Version: http://dx.doi.org/10.1111/j.1365-2028.2006.00707.x
Status: Published
Publisher: Blackwell Publishing
Identification Number: 10.1111/j.1365-2028.2006.00707.x
URI: http://eprints.whiterose.ac.uk/id/eprint/5546

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