North East Monsoon Rainfall (NEMR) is classified as strong, weak and normal depending on the strength of the NEM rainfall using Peninsular India (PI) monthly rainfall data and its behavior is examined during contrasting NEMR years. The sub divisions Kerala, Tamil Nadu and Coastal Andhra Pradesh contribute maximum rainfall to the cumulative PI NEMR and South Interior Karnataka and Rayalseema contribute the least, whether it is a strong or weak NEM. Analysis shows that the rainfall pattern is substantially different in all six sub divisions between strong and weak NEMR years and the difference is statistically significant as confirmed by the Wilcoxon Mann-Whitney rank sum test. Composite analysis shows that more rainfall is received in all the six sub divisions in comparison to the Long Period Average (LPA) during years of strong NEMR, and vice-versa during years of weak NEMR. Correlation analysis between PI NEMR and the sub divisional NEMR indicates that the sub divisions Tamil Nadu (TLN), Rayalseema (RLS), South Interior Karnataka (SIK) and Coastal Andhra Pradesh (CAP) have strong positive correlation whereas Kerala (KER) and Coastal Karnataka (COK) rainfall shows moderate correlation.

中文翻译：

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NEMR强，弱和正常年份东北印度半岛季风降雨的空间变异性

东北季风降雨（NEMR）使用印度半岛（PI）每月降雨数据，根据NEM降雨的强度分为强，弱和正常，并且在对比的NEMR年中检查了其行为。喀拉拉邦，泰米尔纳德邦和安得拉邦沿海这两个子区域为累积PI NEMR贡献了最大的降雨，而南内陆卡纳塔克邦和Rayalseema的贡献最小，无论它是强势还是弱势NEM。分析表明，在强弱NEMR年和弱NEMR年之间的所有六个子分区中，降雨模式都存在显着差异，并且通过Wilcoxon Mann-Whitney秩和检验证实，该差异具有统计学意义。综合分析显示，在强NEMR的年份中，与长期平均（LPA）相比，所有六个分区的降雨都更多，反之，在NEMR弱的年份也是如此。PI NEMR与分区NEMR之间的相关分析表明，泰米尔纳德邦（TLN），拉亚尔西马（RLS），南内陆卡纳塔克邦（SIK）和沿海安得拉邦（CAP）细分具有强正相关，而喀拉拉邦（KER）和沿海卡纳塔克邦（COK​​）降雨显示中等程度的相关性。