Non- consistent hydrological frequency calculation method based on GAMLSS model
A technology of hydrological frequency and calculation method, applied in calculation, database design/maintenance, structured data retrieval, etc., can solve the problem of non-uniform hydrological frequency, achieve scientific and reasonable calculation process and method, strong operability, reduce The effect of technical risk
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[0054] The invention is used to calculate the inconsistency frequency of the quarterly inflow runoff sequence of Zhanghe Reservoir in Hubei Province from 1963 to 2016.
[0055] Step 1, Build figure 2 The distribution function library shown.
[0056] Step 2, Build image 3 The fitted pattern library is shown.
[0057] Step 3, fitting the hydrological series
[0058] For Zhanghe Reservoir winter, spring, summer, and autumn inflow series, based on R software programming, the GAMLSS model was used to fit each fitting mode, and the fitting results under different modes were obtained.
[0059] Step 4, select the alternate optimal mode
[0060] The fitting results of each inflow sequence under each mode are obtained from Step 3 (see Table 1). For winter, spring, summer, and autumn inflow sequences, the one with the smallest AIC value is selected as the backup optimal mode, that is, mode 47 , Mode 26, Mode 38, and Mode 36.
[0061] Table 1 Fitting results of inflow series (AIC ...
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