Flow Simulation Based on Unit Line for Data-missing Watershed

doi:10.11924/j.issn.1000-6850.casb18040111

Abstract

Abstract: According to the current situation of missing data in the rainfall runoff simulation process, different data-missing patterns were constructed based on the data-missing features of different rainfall types. Different interpolation methods were used to construct the unit line, and the popularization and application of unit lines under different missing patterns were discussed. The results showed that: the tail-fitting effect of the unit line constructed by different interpolation methods was better, and the interpolation effect to the peak was not good; there were deviations in the peak position after interpolation with different rainfall types; based on the peak deviation phenomenon and the principle of multiplication of unit lines, the fitting of the unit line after obtaining the peak value of the unit line was better, and it provided a new theoretical thinking for rainfall runoff simulation and agricultural non-point source evaluation simulation in the area of missing data, which had a good promotion significance.

CLC Number:

X524

References

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