Analysis of Changes in Precipitation and Drought in Aksu River Basin, Northwest China

Table 4

Aridity Index, annual precipitation, and reference evapotranspiration estimated using FAO-56 Penman–Monteith equation.

Station name	Precipitation (mm/year)	PET (mm/year)	Aridity index	Climate
Aksu	73.947	972.22	0.076	Arid
Aheqi	215.045	985.51	0.218	Semiarid
Alar	48.910	1023.91	0.048	Extreme arid
Baicheng	119.041	832.52	0.143	Arid
Keping	96.343	1102.73	0.087	Arid
Kuche	69.812	1164.73	0.060	Arid
Turgat	246.653	621.34	0.397	Semiarid
Wuqia	180.106	1082.91	0.166	Arid
Kashi	67.380	1125.91	0.060	Arid