High-resolution regional climate simulations of the long-term decrease in September rainfall over Indochina
✍ Scribed by Hiroshi G. Takahashi; Takao Yoshikane; Masayuki Hara; Tetsuzo Yasunari
- Publisher
- Elsevier Science
- Year
- 2008
- Tongue
- English
- Weight
- 293 KB
- Volume
- 10
- Category
- Article
- ISSN
- 1530-261X
- DOI
- 10.1002/asl.203
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✦ Synopsis
Abstract
We address the long‐term decrease in September rainfall over the Indochina Peninsula. Distinct long‐term decreases in rainfall along the monsoon trough across the Indochina Peninsula have been observed. We performed long‐term simulations and discuss the effects of long‐term changes in both the local surface conditions and large‐scale circulation. Using a 30‐year simulation for September for the period from 1966 to 1995 with land‐use conditions fixed at present‐day values and neglecting the recorded deforestation, we successfully simulated the observed long‐term decrease in rainfall. We therefore conclude that the weakening tropical‐cyclone activity over the Indochina Peninsula region is probably responsible for the decrease in rainfall. Copyright © 2008 Royal Meteorological Society