Comparison of Two Approaches for Estimating Precipitation Elasticity of Streamflow in China’s Main River Basins

Figure 4

Correspondence of elasticity estimated by nonparametric approach (PE1) with aridity index. The hierarchical cluster analysis yielded three derivatives of precipitation streamflow elasticity—cluster 1 denoted by shaded black circle, cluster 2 denoted by shaded grey circle, and cluster 3 denoted by unshaded circle. The inset plate is the precipitation elasticity of streamflow for Hei and Aksu inland catchments in China.