Spatial Interpolation of Annual Runoff in Ungauged Basins Based on the Improved Information Diffusion Model Using a Genetic Algorithm

Figure 2

Comparison of observed runoff and interpolated runoff forced by IDW, COK, SIDM, OIDM, and GIDM at gauges Lanzhou (a) and Lijin (b) from 2002 to 2011.

(a)

(b)