Detection of Abrupt Changes in Runoff in the Weihe River Basin

Table 2

Statistical parameters of the IMFs.

Mode	Mean frequency	Mean period (year)	Mean amplitude (m^3⋅s^−1)
IMF1	0.122	8.21	28.55
IMF2	0.065	15.38	19.13
IMF3	0.039	25.64	15.89
IMF4	0.031	32.25	0.006