Detecting Abrupt Change of Streamflow at Lintong Station of Wei River

Table 2

Minimum and maximum runoff volumes calculated over periods of 1, 3, 7, 30, and 90 days for the Lintong station in the Wei River basin.

Value	First; stage; /(10^8 m³)	Second; stage; /(10^8 m³)	Mean difference /(10^8 m³)	Rate of migration	Third; stage; /(10^8 m³)	Mean difference (10^8 m³)	Rate of migration	Fourth; stage; /(10^8 m³)	Mean; difference /(10^8 m³)	Rate of migration
max1	3120.00	3148.09	28.09	1%	2091.37	−1056.72	−34%	2272.40	181.03	9%
max3	6828.09	6597.00	−231.09	−3%	4566.26	−2030.74	−31%	5175.60	609.34	13%
max7	10865.64	11735.64	870.00	8%	7263.49	−4472.15	−38%	8448.60	1185.11	16%
max30	26433.18	25706.53	−726.65	−3%	17245.20	−8461.33	−33%	18460.14	1214.94	7%
max90	52345.23	44413.50	−7931.73	−15%	34207.21	−10206.29	−23%	35926.12	1718.91	5%
min1	23.10	7.98	−15.12	−65%	20.67	12.69	159%	29.36	8.69	42%
min3	74.73	26.02	−48.71	−65%	65.14	39.12	150%	93.78	28.64	44%
min7	221.61	74.32	−147.29	−66%	170.53	96.21	129%	241.06	70.53	41%
min30	1578.29	703.96	−874.33	−55%	1102.14	398.19	57%	1472.88	370.74	34%
min90	8949.95	4311.14	−4638.81	−52%	5602.16	1291.02	30%	5665.44	63.28	1%