水系连通变异下荆南三口河系水文干旱识别与特征分析

代稳, 吕殿青, 李景保, 王金凤, 赵增友

Identification of hydrologic drought characteristics under water system connectivity variation in river system of three outlets of Jingjiang river

Wen DAI, Dianqing LU, Jingbao LI, Jinfeng WANG, Zengyou ZHAO

表5 水系连通变异下各站点不同重现期所对应的水文干旱特征变量参数

Tab. 5 Hydrologic drought varialables at different recurrence periods at each hydrologic station after river system connectivity variation

水文站点	时间系列	单变量重现期(a)	干旱历时(月)	干旱强度(亿m³)	峰值(亿m³/月)
新江口	1956-1989	2	2.85	767.10	1477.01
		5	3.77	1231.42	2305.05
		10	4.49	1588.46	2866.35
	1990-2016	2	3.53	1110.37	2097.58
		5	4.48	1580.86	2855.34
		10	5.27	1948.71	3329.89
沙道观	1956-1989	2	2.40	323.71	327.17
		5	3.45	611.25	502.63
		10	4.30	814.45	568.70
	1990-2016	2	3.32	574.88	786.62
		5	4.43	843.37	575.49
		10	5.41	1020.72	606.96
弥陀寺	1956-1989	2	2.47	396.34	343.94
		5	3.49	728.17	574.85
		10	4.34	1008.45	709.86
	1990-2016	2	3.33	675.29	542.87
		5	4.45	1045.17	723.30
		10	5.54	1422.62	814.51
康家岗	1956-1989	2	1.77	207.29	18.60
		5	2.54	376.33	31.83
		10	3.10	493.31	40.45
	1990-2016	2	2.27	317.03	27.27
		5	3.02	476.29	39.23
		10	3.54	580.39	46.41
管家铺	1956-1989	2	2.41	586.99	453.04
		5	3.34	1016.99	712.22
		10	4.00	1319.92	840.59
	1990-2016	2	3.12	918.04	660.47
		5	4.01	1322.99	841.67
		10	4.61	1591.83	920.34