The scope of the study is to analyse the trends and variability in the rainfall pattern over the West Bengal using non parametric Mann-Kendall test, Sen’s slope estimator. Analysis has been carried out for monthly, seasonal and annual rainfall series of 19 districts in the two meteorological sub-divisions of West Bengal using monthly rainfall data of 117 years (1901-2017). It was found that except Darjeeling district, all the other districts in Sub-Himalayan West Bengal showed decreasing trend. On the other hand nine districts in the Gangetic West Bengal showed increasing trend in the rainfall pattern and four districts showed slightly decreasing trend.
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2022: 6.012
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