Regional Frequency Analysis of Extreme Dry Spells during Rainy Season in the Wei River Basin, China

Table 3

Values of the discordancy measure of the four subregions in the WRB.

Regions	Station	Discordancy measurement
Subregion 1	Lintao	1.2750
	Huajialin	1.3221
	Guyuan	0.7334
	Xiji	0.5472
	Minxian	1.1223
Subregion 2	Dingbian	1.1166
	Wuqi	1.3232
	Huanxian	0.1947
	Pingliang	1.3312
	Xifengzhen	1.0344
Subregion 3	Yan’an	0.9705
	Changwu	1.6161
	Luochuan	0.1911
	Longxian	1.2628
	Tianshui	1.0010
	Yongshou	0.9185
Subregion 4	Pucheng	1.0781
	Fengxiang	0.3013
	Taibai	1.5532
	Wugong	1.0969
	Qindu	0.6791
	Huaxian	1.2914

Note: the critical value of is 1.333 and 1.648, when the number of stations in the region is 5 and 6, respectively. That is to say, the critical value of is 1.333 for subregion 1 and subregion 2 and 1.648 for subregion 3 and subregion 4.