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Hillside point rainfall runoff measurement method

A technique of rainfall runoff and measurement method, applied in the field of rainfall runoff measurement and rainfall runoff measurement of hillside points

Inactive Publication Date: 2011-06-15
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the constraints of the diversification of the underlying surface and the limitation of measurement methods, there has been no ideal method for in-depth experimental research on the runoff and its spatial variation on the upper slopes of the basin.

Method used

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  • Hillside point rainfall runoff measurement method
  • Hillside point rainfall runoff measurement method
  • Hillside point rainfall runoff measurement method

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Embodiment Construction

[0041] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0042] The slope point rainfall runoff measurement method of the present invention comprises the following steps:

[0043] (1) Selection of measurement points;

[0044] like figure 1 As shown, select the location with the largest topographic gradient within the predetermined measurement area, the soil and vegetation at this location are the same as those in the predetermined measurement area, and are representative of the underlying surface; 5 measurement points are selected according to the Thiessen polygon method position, see layout Image 6 .

[0045](2) The equipment hillside point rainfall runoff measuring instrument of the present invention comprises: outer rain barrier 1, inner rain barrier 2, middle partition 3, lower baffle plate 4, surface runoff rain gauge 5, rainfall rainfall conduit 6, rainfall rainfall Meter 7, soil mid-flo...

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Abstract

The invention relates to a rainfall runoff measurement method, in particular to a hillside point rainfall runoff measurement method which belongs to the field of hydrologic forecast measurement in hydraulic engineering. The invention comprises measurement method steps, equipment, equipment mounting steps and the combination of measurement result analysis and calculation methods. The invention has the advantages that the hillside point rainfall runoff measurement method is provided to ensure that researchers can carry out precipitation quantity division through a physical method; the time sequence process of various runoff constituents can be measured; and the runoff yield space variation of the hillside can be obtained through reasonable arrangement.

Description

technical field [0001] The invention relates to a method for measuring rainfall runoff, in particular to a method for measuring rainfall runoff at hillside points. It belongs to the field of hydrological forecasting and measurement in hydraulic engineering. Background technique [0002] The area of ​​hilly areas threatened by mountain torrent disasters in my country is about 4.63 million km 2 , accounting for about 48% of my country's land area, the region has a total population of about 556 million, accounting for 44.2% of the country's total population. Due to the large area and large population in mountainous areas, the disaster losses caused by mountain torrents are often very serious, which has a serious impact on the sustainable development of the national economy in mountainous areas of our country. In recent years, the level of flood monitoring and flood control standards for large rivers and rivers has been gradually improved, while the flood monitoring and flood ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01W1/14
Inventor 刘金涛胡晨明陈喜冯德锃崔巍任黎
Owner HOHAI UNIV
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