Basin confluence simulation estimation method

A watershed and confluence time technology, applied in soil material testing, measuring devices, surveying and navigation, etc., can solve the problems of applying other watersheds and rainfall scenarios, and not giving different unit judgment methods

Pending Publication Date: 2020-04-24
NANJING UNIV
View PDF0 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still has problems and shortcomings. The articles by Xie Hua, Du Jinkang, etc. describe the method more generally, and only briefly describe the basic idea and conceptual flow of the method.
There is a lack of in-depth interpretation and analysis of the factor parameters and 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
  • Basin confluence simulation estimation method
  • Basin confluence simulation estimation method
  • Basin confluence simulation estimation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0064] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0065] The present invention designs a method for simulating and estimating watershed flow, which is used for estimating watershed flow in a target area, including the following steps A to D.

[0066] Step A. Execute the following steps A1 to A11 to construct the underlying surface parameters of the watershed corresponding to the target area, and then proceed to step B.

[0067] Step A1. Obtain the elevation parameters of the raster dataset type corresponding to the target area, that is, the elevation value of each grid pixel position in the target area. The surveyed digital line drawing graph (DLG) is interpolated, and then enters step A2. The cell size of the raster dataset involved in all steps after step A1 must be consistent with the cell size of the raster dataset type in this step.

[0068] Step A2. According to...

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 relates to a basin confluence simulation estimation method. A distributed hydrological model is instructed and a basin runoff production process is simulated based on underlying surfacesand rainfall parameters. Then, the basin confluence process is simulated according to the runoff and underlying surface parameters obtained through simulation, so that confluence estimation is achieved, the space distribution difference and the time difference of the basin rainfall flood process are effectively reflected in design, and high precision is achieved for simulation of small and microbasins; in addition, rainfall flood simulation can be carried out without historical data of a hydrological station at a drainage basin outlet, the upstream catchment area drainage basin at any pointin a large-range drainage basin can be simulated, and high flexibility and practicability are achieved; meanwhile, the design method carries out simulation operation completely based on the grid calculation principle, and the operation speed is high; and the analog operation speed can be further increased by adjusting the resolution of the raster data according to application requirements, so thata large number of experiments can be performed quickly.

Description

technical field [0001] The invention relates to a method for simulating and estimating river basin confluence, and belongs to the technical field of hydrological prediction. Background technique [0002] With the development and transformation of China's sponge city construction concept, sponge city planning has begun to pay attention to the impact of watersheds around cities on urban rivers during rainfall. For mountainous and hilly areas, due to factors such as complex topography and large average slope, the runoff process formed by rainfall in the basin has the characteristics of time period and high flow intensity, which can easily cause the rapid increase of the water level of the river in the downstream urban built-up area. The rise will affect the urban rainwater drainage function and form flood disasters. Therefore, simulating the process of flow generation and confluence in small and micro watersheds in catchment areas around cities under heavy rain scenarios, as w...

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): G06F30/20G01C5/00G01C13/00G01N21/17G01N33/24
CPCG01C13/002G01N21/17G01N33/24G01C5/00G01N2021/1797
Inventor 徐晗徐建刚林蔚杨帆陈静姣东昆鹏张翔
Owner NANJING UNIV
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