Seasonal variation of land-atmosphere coupling strength over the West African monsoon region in an atmospheric general circulation model
Abstract
The seasonal variation of land-atmosphere coupling strength has been examined using an extended series of atmospheric general circulation model (AGCM) simulations. In the Western Sahel of Africa, strong coupling strength for precipitation is found in April and May, just prior to and at the beginning of the monsoon season. At this time, heat and water fluxes from the surface are strongly controlled by land conditions, and the unstable conditions in the lower level of the troposphere, as induced by local land state, allow the surface fluxes to influence the variability of convective precipitationand thus the timing of monsoon onset.
Journal
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- Hydrological Sciences Journal - Journal des Sciences Hydrologiques
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Hydrological Sciences Journal - Journal des Sciences Hydrologiques 58 (6), 1276-1286, 2013-08-01
Taylor & Francis
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Keywords
Details 詳細情報について
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- CRID
- 1050564288967875968
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- NII Article ID
- 120005476185
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- HANDLE
- 2115/57246
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- ISSN
- 02626667
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles