Method for simulating regional water flow movement based on coupling of soil unsaturated water and groundwater

A motion simulation and groundwater technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems of unfavorable groundwater flow numerical simulation, satellite remote sensing data cannot be directly input, etc., to achieve the effect of ensuring simulation accuracy

Inactive Publication Date: 2019-02-22
北京市水文总站
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Problems solved by technology

[0004] Since surface hydrological data are mainly obtained through satellite remote sensing, and satellite remote sensing data are stored in the form of grids, for the groundwater model based on the finite element method, when it per

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  • Method for simulating regional water flow movement based on coupling of soil unsaturated water and groundwater
  • Method for simulating regional water flow movement based on coupling of soil unsaturated water and groundwater
  • Method for simulating regional water flow movement based on coupling of soil unsaturated water and groundwater

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[0062] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0063] reference figure 1 , The present invention provides a regional water flow simulation method based on the coupling of soil unsaturated water and groundwater, which includes the following steps:

[0064] Step 1. Obtain remote sensing raster data of the study area; wherein, the remote sensing raster data of the study area refers to data obtained through satellite remote sensing, and the remote sensing raster data corresponds to M rows and N columns of grids, namely: the study area grid The grid is divided into M rows and N columns; the side length of each grid is s; ba...

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Abstract

The invention provides a method for simulating regional water flow movement based on coupling of soil unsaturated water and groundwater, comprising the following steps of for each finite element nodeP in the research area, adopting the following methods to obtain a grid corresponding to each finite element node P in space; calculating the rainfall infiltration of node P of finite element method;establishing a one-dimensional soil unsaturated flow simulation model; calculating the influence area AP of finite element node P; establishing a three-dimensional groundwater flow model to simulate the groundwater flow. The advantages are that (1) the spatial correlation between the remote sensing raster data and the finite element nodes is realized, which ensures the accuracy of the subsequent groundwater flow simulation by the finite element method; (2) the one-dimensional soil unsaturated flow simulation model and the three-dimensional groundwater flow model are coupled to ensure the simulation accuracy of groundwater flow.

Description

Technical field [0001] The invention belongs to the technical field of regional water flow motion simulation, and specifically relates to a regional water flow motion simulation method based on the coupling of soil unsaturated water and groundwater. Background technique [0002] Surface hydrological processes such as rainfall, evaporation, soil infiltration, and groundwater flow movement are an organic whole that interacts and is internally linked under certain topographic, geological and climatic conditions. Therefore, in the numerical simulation of groundwater flow movement, it is necessary to use surface hydrological data as input drive to ensure the accuracy of groundwater flow movement numerical simulation. [0003] However, in the process of implementing the present invention, the inventor found that the prior art has at least the following problems: [0004] Since surface hydrological data is mainly obtained through satellite remote sensing, and satellite remote sensing data ...

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/23
Inventor 孙峰
Owner 北京市水文总站
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