Research Article

Temporal Dynamics and Trend Analysis of Areal Rainfall in Muger Subwatershed, Upper Blue Nile, Ethiopia

Table 2

Classes of the standardized anomaly index [6, 40].

SAI valueInterpretation

≥2Extremely wet
1.99 to 1.5Very wet
1.49 to 1Moderately wet
0.99 to −0.99Normal
−1 to −1.49Moderately dry
−1.5 to −1.99Very dry
≤−2Extremely dry