Spatiotemporal Analysis of Drought Characteristics in Song-Liao River Basin in China

Figure 8

Trend variations of (a) annual SPEI and (b) annual SPI over SLRB from the 1980s through the 2000s.

(a) SPEI 1980s, 1990s, and 2000s

(b) SPI 1980s, 1990s, and 2000s