Finite element control based modeling method for distributed hydrological model

A technology of distributed hydrology and modeling method, which is applied in the field of hydrology, can solve the problems of ineffective response to the influence of flow-confluence in the underlying surface basin, long calculation time, and difficulty in parameter rate, and achieve short calculation time and easy parameter setting , Adaptable effect

Inactive Publication Date: 2015-12-16
天津市水文水资源勘测管理中心
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the embodiments of the present invention is to provide a modeling method of a distributed hydrological model controlled by finite elements, aiming to solve the problem that the same technology ca

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Finite element control based modeling method for distributed hydrological model
  • Finite element control based modeling method for distributed hydrological model
  • Finite element control based modeling method for distributed hydrological model

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0043] see Figure 1A with Figure 1B , the modeling method of the distributed hydrological model of the finite element control of preferred embodiment of the present invention, comprises steps:

[0044] S1: Carry out finite element division to the watershed, generate the finite element distribution in the watershed;

[0045] In this step, see the figure 2 . The finite element division is carried out according to the property of the underlying surface of the watershed and the control density of the rainfall station. For finite elements with different properties, the set of finite element areas is equal to the watershed area.

[0046] Specifically, in the grid distributed hydrological model, the grids with the same or similar underlying surface properties are merged, and finite elements with the same properties of various watershed properti...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a finite element control based modeling method for a distributed hydrological model. The method comprises the steps of basin finite element division, finite element model generation and finite element control based distributed hydrological model generation. In the finite element division, linear scale of a basin hydrological phenomenon is considered from control density of a basin precipitation station, underlying surface attributes and basin flow concentration characteristics. A finite element model is a physical hydrological model with same or similar underlying surface attributes, and the finite element control based distributed hydrological model is formed through concentration of river networks according to river network distribution of basin. The change of the underlying surface attributes of the basin caused by human activities is adjusted by utilizing a finite element distribution control switch, and the change of water-holding capacity of the basin caused by the human activities is adjusted by a finite element model parameter control switch, thereby meeting hydrological simulation and forecasting requirements under the condition of human activity influence. The method has the advantages of short calculation time, easiness for parameter calibration, high adaptability, high calculation result precision and the like.

Description

technical field [0001] The invention relates to the field of hydrology, in particular to a distributed hydrological model modeling method controlled by finite elements. Background technique [0002] Aiming at the nonlinear problem of precipitation and runoff in watersheds, many distributed hydrological models have been proposed in the field of hydrology. The grid of the existing distributed hydrological model is the basis for dealing with the nonlinear problem of precipitation and runoff in the watershed. It converts the dispersion and discontinuity (mainly non-gradual change and abrupt change) of the change of the underlying surface of the watershed into gradual and continuous changes in the grid. , in order to use the linear method to deal with the nonlinear problem of precipitation and runoff in the watershed. [0003] At present, most distributed hydrological models only consider the lower limit of the linear scale of the watershed (that is, the grid is small enough) an...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G06F17/50
Inventor 赵天佑谢润起李致家于福民张强李忠柴雅彬王勇吴逊秦嘉迎王小琛
Owner 天津市水文水资源勘测管理中心
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap