A method for transplanting parameters of hydrological model

A hydrological model and parameter technology, applied in the field of data processing, can solve the problems of lack of detailed hydrological data, hydrological model analysis and prediction, etc., and achieve the effect of increasing accuracy and robustness, less demand, and improving parameter estimation efficiency

Inactive Publication Date: 2019-01-15
BEIJING NORMAL UNIVERSITY +1
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Problems solved by technology

However, due to various reasons, many areas do not have detailed and complete hydrological data, which makes it impossible to generate accurate hydrological models for analysis and prediction.

Method used

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  • A method for transplanting parameters of hydrological model
  • A method for transplanting parameters of hydrological model
  • A method for transplanting parameters of hydrological model

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Embodiment Construction

[0019] A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

[0020] The distributed watershed hydrological model is a widely used physics-based distributed hydrological model, and its parameters have certain physical meanings, so different parameters have a certain relationship with the corresponding physical attributes of the watershed; therefore, the existing technology can use The mathematical model is obtained by training the relationship between the calibrated optimal model parameters and the physical properties of the watershed, and then the effectiveness of the fitted mathematical model is tested by a cross-validation method.

[0021] Since all the experimental designs are based on the real data of the actual watershed, the practical application potential of the distributed watershed hydrological model is great. If these distributed watershed hydrological models are applied to the actual parameter calibrat...

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Abstract

A method for transplanting parameters of hydrological model. The method includes utilizing parameters of at least two sub-watersheds of one watershed to generate distribute watershed hydrological model of whole watershed; determining the sensitive parameters of distributed watershed hydrological model: attenuation parameter of transverse permeability when soil profile is saturated, average saturation difference of soil, average Manning coefficient of sub-watershed; cluster analysis is used to determine the physical attribute parameters of each sensitive parameter, and then the mathematical model corresponding to each sensitive parameter and its corresponding physical attribute parameters is fitted to determine the most suitable mathematical model corresponding to each sensitive parameter with the highest fitness. The Nash coefficients of the target sub-watershed are determined by selecting the sub-watershed with complete hydrological data, using the corresponding mathematical model forsensitive parameters of the sub-watershed with complete hydrological data and the parameter rating values of all the sub-watershed except the target sub-watershed.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a method for transplanting hydrological model parameters. 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. Among them, the hydrological data are various data related to hydrology obtained from field investigation, observation and calculation research; including: precipitation, evaporation, water level, flow, sediment concentration, etc., and the maximum Value, minimum value, average value, total amount, process line and contour line, etc. According to the hydrological data, the hydrological atlas can be generated to reflect the general hydrological laws in the region by means of contour lines and partitions based on the results of the analys...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 王国强王溥泽阿膺兰彭岩波韩子叻
Owner BEIJING NORMAL UNIVERSITY
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