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Changes in Precipitation Seasonality in West Africa Predicted by RegCM3 and the Impact of Dynamic Vegetation Feedback
Joint Authors
Source
International Journal of Geophysics
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-01-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Using a regional climate model asynchronously coupled to a dynamic vegetation model, this study examines future climate predictions for the West Africa region and how dynamic vegetation feedback may influence such predictions.
Without accounting for the impact of vegetation dynamics, the model predicts a future decrease of annual rainfall over Sahel.
Dynamic vegetation feedback reverses this trend, leading to a substantial increase of annual rainfall.
Regardless of how vegetation is treated, the predicted future trend of precipitation in the Sahel region follows a specific seasonal pattern, with a decrease during the pre- and early-monsoon season (May-June and early July) due to the warming-induced enhancement of spring convective barrier and an increase after the monsoon is fully established (typically in July-August-September) due to enhanced moisture import from a warmer ocean.
Dynamic vegetation feedback reduces the magnitude of the predicted rainfall reduction in the early season and increases the magnitude of the predicted rainfall increase later in the rainy season.
The future decrease of early-season rainfall has significant agronomic implications.
American Psychological Association (APA)
Wang, Guiling& Alo, Clement A.. 2012. Changes in Precipitation Seasonality in West Africa Predicted by RegCM3 and the Impact of Dynamic Vegetation Feedback. International Journal of Geophysics،Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-483875
Modern Language Association (MLA)
Wang, Guiling& Alo, Clement A.. Changes in Precipitation Seasonality in West Africa Predicted by RegCM3 and the Impact of Dynamic Vegetation Feedback. International Journal of Geophysics No. 2012 (2012), pp.1-10.
https://search.emarefa.net/detail/BIM-483875
American Medical Association (AMA)
Wang, Guiling& Alo, Clement A.. Changes in Precipitation Seasonality in West Africa Predicted by RegCM3 and the Impact of Dynamic Vegetation Feedback. International Journal of Geophysics. 2012. Vol. 2012, no. 2012, pp.1-10.
https://search.emarefa.net/detail/BIM-483875
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-483875