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Table 6

Summary of the Mann–Kendall test for rainfall trend data 1901 to 2002 over Barmer District

Rainfall periodKendall's tauTrend interpretationMann–Kendall test
p-value (two-tailed test)
Sen's slopeTest interpretation
January − 0.074 Falling 0.262 − 0.00007 Insignificant decreasing trend 
February 0.002 Rising 0.979 No trend 
March − 0.039 Falling 0.564 No trend 
April − 0.016 Falling 0.811 No trend 
May 0.068 Rising 0.302 0.003 Insignificant increasing trend 
June 0.086 Rising 0.185 0.07 Insignificant increasing trend 
July 0.028 Rising 0.664 0.076 Insignificant increasing trend 
August 0.025 Rising 0.706 0.072 Insignificant increasing trend 
September − 0.055 Falling 0.395 − 0.038 Insignificant decreasing trend 
October 0.048 Rising 0.476 No trend 
November 0.022 Rising 0.754 No trend 
December − 0.088 Falling 0.194 No trend 
Winter − 0.045 Falling 0.493 − 0.002 Insignificant decreasing trend 
Pre-monsoon 0.026 Rising 0.687 0.007 Insignificant increasing trend 
SW monsoon 0.023 Rising 0.725 0.153 Insignificant increasing trend 
Post-monsoon 0.056 Rising 0.388 0.012 Insignificant increasing trend 
Annual 0.029 Rising 0.657 0.187 Insignificant increasing trend 
Rainfall periodKendall's tauTrend interpretationMann–Kendall test
p-value (two-tailed test)
Sen's slopeTest interpretation
January − 0.074 Falling 0.262 − 0.00007 Insignificant decreasing trend 
February 0.002 Rising 0.979 No trend 
March − 0.039 Falling 0.564 No trend 
April − 0.016 Falling 0.811 No trend 
May 0.068 Rising 0.302 0.003 Insignificant increasing trend 
June 0.086 Rising 0.185 0.07 Insignificant increasing trend 
July 0.028 Rising 0.664 0.076 Insignificant increasing trend 
August 0.025 Rising 0.706 0.072 Insignificant increasing trend 
September − 0.055 Falling 0.395 − 0.038 Insignificant decreasing trend 
October 0.048 Rising 0.476 No trend 
November 0.022 Rising 0.754 No trend 
December − 0.088 Falling 0.194 No trend 
Winter − 0.045 Falling 0.493 − 0.002 Insignificant decreasing trend 
Pre-monsoon 0.026 Rising 0.687 0.007 Insignificant increasing trend 
SW monsoon 0.023 Rising 0.725 0.153 Insignificant increasing trend 
Post-monsoon 0.056 Rising 0.388 0.012 Insignificant increasing trend 
Annual 0.029 Rising 0.657 0.187 Insignificant increasing trend 
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