A Hydrological Model Correction Method Based on Remote Sensing of Water Surface and River Width

Abstract

The embodiment of the present invention provides a hydrological model calibration method based on remote sensing water surface river width, comprising the steps of establishing the relationship between the runoff Q of river and the three hydraulic factors of river width We, average velocity V and average water depth D of the river cross-section, wherein the relationship among the three hydraulic factors of river width We, average velocity V and average water depth D is defined as the formulas, Wherein a, c, k, b, f and m are coefficients; using remote sensing data to obtain the river width we', and correcting the coefficients of the hydrological model by the relationship between the runoff Q and the river cross-section width.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a hydrological model correction method based on remote sensing water surface and river width. Background technique [0002] With the development of society, more and more fields are beginning to use data analysis and data processing technology. In many fields where large amounts of data are used, the data is processed so that computers can process it according to the data. [0003] Hydrological data is an extremely important data of river basins, and it is the basis for early warning of disasters. Most of the hydrological models commonly used at present are precipitation-runoff hydrological models, the input of the system is precipitation, and the output of the system is runoff; and the parameter correction of the hydrological model is carried out through the measured runoff data. Because it involves actual measurement and correction, there are problems of low correctio...

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Problems solved by technology

[0004] Aiming at the problem that the parameter correction of the current hydrological model relies on the measured runoff data, which leads to low correction efficiency and is prone to human errors, the embodiment of the present invention proposes a hydrological model correction method based on remote sensing water surface and river width, which can affect hydrological parameters by remote sensing water surface and river width. Model parameters are corrected

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