Detecting Runoff Variation of the Mainstream in Weihe River

Table 4

Coefficients of variation (Cv) and skewness (Cs) of annual runoff volumes of 1919–1989, 1919–2011 (the whole study period).

	1919–1989	1919–2011
Cv	0.405	0.456
Cs	0.802	0.841