Linear reservoir retention confluence and nested watershed (multiple sub watersheds) confluence method
A sub-basin and watershed technology, applied in the field of hydrology applications, can solve the problems that affect the simulation accuracy of large-scale watersheds, the description of watershed confluence is too simplified, and the lack of objective representation, so as to achieve the effects of objective and scientific simulation results, avoiding parameter problems, and easy application.
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[0034] Embodiment: linear reservoir stagnation confluence and nested basin (multi-sub-basin) confluence method, its core is to introduce retention coefficient α (0≤α≤1) to describe the water storage capacity of linear reservoir, adopt binomial [(1-α )+α] NThe method approximates the Nash instantaneous unit line and improves the confluence method of the hydrological model. The process generally includes the collection and analysis of research basin data, the establishment of linear reservoir stagnant confluence and nested basin (multi-sub-basin) confluence methods, parameter calibration, As well as the hierarchical deduction of nested watersheds, the flow simulation evaluation of the outlet section of the watershed, etc. Taking the Atter Basin in Luxembourg as an example, the specific steps are as follows:
[0035] (1) Taking Bissen Station as the outlet of the basin, it is divided into nine nested sub-watersheds, such as figure 2 As shown, the collected data is as follows: ...
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