Method for identifying the scale of variation of hydrological series

The invention relates to the field of hydrology and water resources, in particular to a method for identifying the variation scale of hydrology series. The method comprises the following steps: S1, collecting hydrological series data; S2, detecting that catastrophe point of the hydrological series by using the ordered clustering method; S3, dividing the hydrological sequence into two sub-sequencesaccording to the mutation point, wherein the sub-sequence before the mutation point is called a reference sequence, and the sequence after the mutation point is called a measured sequence; S4. the variability of hydrological series can be calculated by using correlation integration method and combining two sub-sequences. The method is simple in principle, low in computational complexity and highin efficiency, and can be used for identifying the variation scale of the hydrological sequence, and can be widely applied to the research on the variation degree of various hydrological element sequences. 本发明涉及水文水资源领域，具体地，涉及种