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Table 2 Mann–Kendall and Sen’s slope results for monthly rainfall trends

From: Spatiotemporal climate and vegetation greenness changes and their nexus for Dhidhessa River Basin, Ethiopia

AEZ Parameters January February March April May June July August September October November December
Tepid sub-humid Z-test − 0.72 − 0.92 − 1.31 0.64 2.45* − 0.04 − 0.17 0.37 1.37 0.04 0.67 − 0.17
Sen’s slope (mm/year) − 0.08 − 0.15 − 0.50 0.33 2.25 − 0.95 − 0.07 0.08 0.86 0.39 0.20 − 0.02
Cool sub-humid Z-test − 0.86 − 0.49 − 0.81 − 0.55 2.45* − 0.07 0.01 − 0.50 − 0.05 0.31 0.85 − 0.74
Sen’s slope (mm/year) − 0.04 − 0.07 − 0.39 − 0.26 3.66 − 0.44 0.04 − 0.34 − 0.05 0.53 0.18 − 0.06
Warm sub-humid Z-test − 0.89 − 0.81 − 0.88 0.54 2.34* 0.3 − 0.09 − 0.33 1.35 0.04 1.16 − 0.07
Sen’s slope (mm/year) − 0.02 − 0.04 − 0.22 0.28 2.42 0.17 − 0.15 − 0.26 0.88 0.48 0.19 0.00
Tepid humid Z-test − 0.26 − 0.85 − 1.45 0.2 1.66 1.67 1.27 0.64 1.45 0.77 0.09 − 0.44
Sen’s slope (mm/year) − 0.04 − 0.21 − 0.76 0.11 1.77 1.32 0.91 0.08 1.28 0.96 0.06 − 0.05
Tepid moist Z-test − 0.69 − 0.54 − 1.32 0.34 1.97* 0.26 − 0.20 0.34 2.12* 0.84 0.63 − 0.12
Sen’s slope (mm/year) − 0.06 − 0.07 − 0.64 0.16 2.34 0.97 − 0.10 0.27 1.29 0.78 0.15 − 0.02
Warm humid Z-test − 0.26 − 0.67 − 0.85 − 0.04 1.79 2.2* 0.65 − 0.6 1.07 0.51 0.37 − 0.25
Sen’s slope (mm/year) − 0.03 − 0.14 − 0.48 − 0.08 1.80 1.72 0.34 − 0.32 0.71 0.45 0.10 − 0.02
Warm moist Z-test − 0.71 − 0.67 − 1.09 0.59 2.29* 0.26 − 0.41 0.07 1.24 0.46 0.71 0.07
Sen’s slope (mm/year) − 0.03 − 0.04 − 0.37 0.24 2.29 0.61 − 0.13 0.06 0.81 0.41 0.20 0.01
  1. * Statistically significant at 0.05% level