Rainfall distribution over the Indian Subcontinent during the 1987 and 1988 severe floods in Bangladesh
Rainfall distribution over the Indian Subcontinent during the 1987 and 1988 severe floods in Bangladesh
复制标题
1987年和1988年孟加拉国严重洪水期间印度次大陆的降雨分布
DOI：
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发表时间：
1996
期刊：
影响因子：
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通讯作者：
N. Monji
中科院分区：
文献类型：
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作者：
J. Matsumoto;M. Rahman;T. Hayashi;N. Monji
使用每日站点降雨数据检查了孟加拉国最近两次严重洪水（1987 年和 1988 年）期间印度次大陆的降雨分布。尽管1987年至1988年整个印度次大陆夏季季风降雨的分布情况对比鲜明，但印度次大陆东北部地区的分布差异不大。这两年，孟加拉国东北部和西北部以及邻近的印度领土降雨量充沛。这种降雨模式在孟加拉国严重洪水事件期间和/或之前也很明显。从季节或月度时间尺度来看，1988年与1987年相比，孟加拉西北部附近的最大降雨区略偏北，孟加拉亚邦东北部附近的梅加拉亚邦降雨量较为丰富。 1987年恒河和1988年雅鲁藏布江的特高水位就是在这种降雨分布下造成的。
The rainfall distribution over the Indian Subcontinent during recent two severe floods (1987 and 1988) in Bangladesh was examined using daily station-based rainfall data. Although the distribution of summer monsoon rainfall in the whole Indian Subcontinent was contrastive between 1987 and 1988, that in the northeastern part of the Subcontinent was not very different. In both years, rainfall was abundant in northeastern and northwestern part of Bangladesh and adjacent Indian territory. This rainfall pattern was also obvious during and/or prior to the severe flood events in Bangladesh. In seasonal or monthly time scale, in 1988 when compared with the situation in 1987, the maximum rainfall area near northwestern Bangladesh was situated slightly northward and rainfall amount in Meghalaya Region near northeastern Bangladesh was more abundant. Extreme high water level of the Ganges in 1987 and that of the Brahmaputra in 1988 were caused under such rainfall distribution.