Fig. 1. Inland arid region of Northwest China and its third-order basins

Fig. 2. Flowchart of methodology

Fig. 3. Change rates of water balance components in the inland region of Northwest China, 1998-2017

Fig. 4. Month of occurrence for maximum and minimum values of water balance components in the inland region of Northwest China

Fig. 5. Change rates of water balance components at third-order basins

Fig. 6. Month of occurrence for maximum and minimum values of water balance components at third-order basins

Fig. 7. Time series of water balance components in (a) the Aksu River Basin, (b) the Shule River Basin, and (c) the Shiyang River Basin