This work is financially supported by the African Monsoon Multidisciplinary Analyses (AMMA) U.K. consortium project, funded by the Natural Environmental Research Council (NE/B505554/1). The authors are grateful to the many project partners including Chris Taylor and Colin Lloyd (CEH, Wallingford, United Kingdom), David Ramier and Luc Descroix (IRD Niger), and Sean Milton (Met Office) for support in undertaking this work. We would also like to thank the three anonymous reviewers for their supportive comments and help in improving the manuscript. Finally, we wish to thank Sandra Mather and Suzanne Yee, Graphics Unit, Department of Geography, for redrawing the figures.
Based on a French initiative, AMMA was built by an international scientific group and is currently funded by a large number of agencies, especially from France, the United Kingdom, United States, and Africa. It has been the beneficiary of a major financial contribution from the European Community’s Sixth Framework Research Programme. Detailed information on scientific coordination and funding is available on the AMMA International Web site (http://www.amma-international.org).
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