Design method for high-resolution fully distributed hydrological model TOPX

Abstract

The invention discloses a design method for a high-resolution fully distributed hydrological model TOPX, which belongs to the field of design methods for fully distributed hydrological models. The design method is combined with a new topologic index computational method, and has a topologic index scale transform mechanism. The design method includes steps of A), preparing data of a TOPX model of the high-resolution fully distributed hydrological model; B), computing topologic indexes of the high-resolution fully distributed hydrological model TOPX; C), computing runoff generation of the TOPX model of the high-resolution fully distributed hydrological model; D),computing soil humidity of the TOPX model of the high-resolution fully distributed hydrological model; E), computing confluence of the TOPX model of the high-resolution fully distributed hydrological model; and F), obtaining testing results of the TOPX model of the high-resolution fully distributed hydrological model and analysis of the testing results. The design method has the advantages that DEM (digital evaluation model) data can be simply and effectively processed, topologic index efficiency is improved, and applicability of the TOPX model in a high-resolution DEM field can be effectively enhanced.

Description

technical field [0001] The invention relates to a fully distributed hydrological model design method combined with a new topographic index, specifically a TOPX model that considers the concept of topographic index and the water balance idea of ​​the Xin'anjiang model, combined with the calculation of the new topographic index The method is to establish a design method for a high-resolution fully distributed hydrological model TOPX coupled with a new topographic index calculation method with a topographic index scale conversion mechanism. Background technique [0002] The hydrological process is a very complex circulation phenomenon of the atmosphere, land surface and groundwater, and the watershed hydrological model is an effective tool for hydrological scientific research. The so-called watershed hydrological model is the process of describing and simulating the hydrological cycle with mathematical methods, that is, the watershed is generalized into a system, the precipitat...

AI Technical Summary

Problems solved by technology

This model can easily and efficiently process DEM data, improve the efficiency of topographic index, and solve the problem of TOPX model in the case of high-resolution research watersheds. The number of DEM grids is large, the amount of data is large, and the calculation workload of topographic index is very huge. Processing large DEM data is very time-consuming, and even leads to crashes, which effectively improves the application of TOPX models in high-resolution DEM areas

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