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Table 8 Result of MK (MMK) test, Sen’s slope and % change over 1901–2002 in different drought series

From: Spatial and temporal appraisal of drought jeopardy over the Gangetic West Bengal, eastern India

Weather Stations SPI-3 SPI-12 SPI-24
Z Q Trend Z Q Trend Z Q Trend
Berhampore −1.30* − 0.21 In* − 2.05* − 0.49 In* − 1.87+ − 0.59 In +
Krishnanagar 0.44 0.07 De 0.94 0.22 De 1.49 0.39 De
Chinsura 1.17 0.17 De 1.86 0.48 De 2.52+ 0.75 De+
Uluberia 1.75+ 0.24 De+ 2.77+ 0.71 De+ 3.23* 0.99 De*
Alipore 1.46+ 0.22 De+ 2.40+ 0.61 De+ 2.98* 0.91 De*
Basirhat 1.98* 0.32 De* 3.27* 0.81 De* 3.88* 0.15 De*
Purulia −1.26 −0.18 In + −1.79+ −0.44 In + −1.95+ − 0.60 In +
Bankura − 0.53 −0.10 In −0.80 − 0.18 In − 0.63 − 0.20 In
Sriniketan −1.49* −0.24 In * −2.53* −0.63 In * −2.77* −0.85 In*
Burdwan −0.45 −0.06 In −0.81 − 0.18 In − 0.61 −0.16 In
Midnpore 1.33 0.20 De 2.22 0.55 De 2.81+ 0.80 De+
Sagar Island 2.17* 0.34 De* 3.48* 0.89 De* 4.00* 0.25 De*
GWB Avg. 0.53 0.08 De 0.92 0.24 De 1.56 0.44 De
  1. Z: Standardized test statistics of MK test; Q-Sen’s slope estimate; In-increasing and De-Decreasing trend of dry condition. * Represents significant trend at 0.05 level of significance; and + represents significant trend at 0.1 level of significance