A new criterion for identifying breaks in monsoon conditions over the Indian subcontinent
A new criterion for identifying breaks in monsoon conditions over the Indian subcontinent
复制标题
识别印度次大陆季风条件中断的新标准
DOI：
10.1029/2004gl020562
复制
发表时间：
2004
影响因子：
5.2
通讯作者：
Uma R. Prabhu Dessai
中科院分区：
文献类型：
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作者：
M. Kumar;Uma R. Prabhu Dessai
[1]在7月和8月的季风中期，印度次大陆上是否存在长时间的中断决定了季风降雨的命运。使用一个新的标准来识别断裂，我们已经将1901年至2002年期间的断裂编目。如果全印度的降雨量小于9毫米/天，并且这种情况至少持续三天，并且发生在7月和8月的季风中期，我们将这种情况称为中断。7月和8月的大部分假期为3-4天（49%）。我们的方法确定的断裂与常规方法确定的断裂基本一致。此外，季节性季风降雨量和中断（活动）日数之间的相关性由本标准确定为-0.80（0.38），这比以前的研究更稳健。
[1] The presence or absence of prolonged breaks over the Indian subcontinent during the mid monsoon months of July and August decides the fate of the monsoon rainfall. Using a new criterion for identifying the breaks, we have catalogued them for the period 1901 to 2002. We refer to a situation as a break, if the all India rainfall is less than 9 mm/day and the condition persists for a minimum of three days and if it occurs in the mid monsoon months of July and August. The majority of the breaks in the months of July and August were of 3–4 days duration (49%). Breaks identified by our method were in general consistent with those identified by the conventional methods. Further, the correlation between the seasonal monsoon rainfall and break (active) days identified by the present criteria is −0.80 (0.38) which is more robust than that of the previous studies.