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The present study has been carried out for longterm trend analyses of past climatic variables using nonparametric tests (MK test, sequential Mann-Kendall and Theil-Sen's slope) for the Giridih district in Jharkhand (India). In addition, sequential Mann-Kendall test were used to see change with time. However, in the serially correlated series, pre-whitening has been used before employing the MK test. The long-term trend analysis based on meteorological station to exhibit a trend in annual and seasonal precipitation for the study area. It was found that there was no significant trend observed in monsoon and summer session for maximum and minimum temperature. Whereas, a significant increasing trend in the region was observed for the winter season. Hence, rainfall is concerned; there was a significant decreasing trend of 2.04 mm/year observed during the monsoon season. There were good agreements with all climatic variables corresponding to the statistical analysis.

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