Water Supply Risk Analysis Based on Runoff Sequence Simulation with Change Point under Changing Environment

Table 2

Parameters of mixed distribution in the monthly observed streamflow series during 1956–2016.

Month	Before the change point		After the change point		α
	Mean flow (m^3/s)	Standard deviation (m^3/s)	Mean flow (m^3/s)	Standard deviation (m^3/s)
1	2.401	0.246	2.248	0.450	0.555
2	2.427	0.277	2.266	0.486	0.591
3	3.080	0.325	2.805	0.516	0.747
4	3.569	0.354	3.175	0.466	0.949
5	3.034	0.444	2.512	1.053	0.438
6	3.559	0.555	3.072	0.753	0.601
7	5.120	0.698	4.305	0.987	0.868
8	5.444	0.706	4.567	1.036	0.869
9	4.727	0.710	3.799	0.774	0.983
10	4.278	0.404	3.727	0.545	0.969
11	3.692	0.396	3.276	0.457	0.914
12	2.757	0.321	2.559	0.470	0.801