Table 3 Mann-Kendall’s trend analysis and the probability of drought events per 100-year for the rainy months and seasons at 1-, 4- and 8-months timesteps
From: Spatial and temporal drought incidence analysis in the northeastern highlands of Ethiopia
SPI timesteps | Months/Season | MK test | P-values | Slope | Probability of drought events per a 100-year |
|---|---|---|---|---|---|
1-month | February | −0.2539** | 0.0305 | −0.0366 | 24 |
March | −0.1388 | 0.2337 | −0.0189 | 14 | |
April | −0.1508 | 0.1952 | −0.02 | 19 | |
May | 0.0693 | 0.556 | 0.0149 | 24 | |
June | 0.2493** | 0.0327 | 0.0311 | 16 | |
July | 0.1851 | 0.1105 | 0.0291 | 14 | |
August | 0.1458 | 0.2092 | 0.0188 | 8 | |
September | −0.0532 | 0.6559 | −0.0077 | 8 | |
4-month | Feb-to-May | −0.1583 | 0.1736 | −0.0248 | 11 |
June-to-Sept | 0.2122 | 0.067 | 0.0281 | 11 | |
8-month | Feb-to-Sept | 0.1414 | 0.2238 | 0.0161 | 11 |