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Method for measuring quantitative index of interaction between surface water and groundwater in permafrost region

A measurement method and technology for surface water, applied in the direction of thermal development of materials, etc., can solve the problems of inability to effectively determine the direction of surface water and groundwater recharge, inability to perform in permafrost areas, etc., achieving low cost, low device dependence, and easy installation. Effect

Inactive Publication Date: 2019-01-11
LANZHOU UNIVERSITY
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Problems solved by technology

[0009] The purpose of the present invention is to provide a method for measuring the quantitative index of the interaction between surface water and groundwater in permafrost regions, aiming to solve the problem of the inability to measure groundwater in permafrost regions, the inability to effectively determine the recharge direction of surface water and groundwater, and quantitative estimation The question of the strength of interaction between surface water and groundwater

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  • Method for measuring quantitative index of interaction between surface water and groundwater in permafrost region

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[0028] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0029] The present invention is a method for measuring the quantitative index of interaction between surface water and groundwater in permafrost regions, the method comprising the following steps:

[0030] (1) Use a temperature measuring device to measure the temperature values ​​at the sampling points at different depths at the bottom of the river bed to obtain temperature time change data;

[0031] (2) Estimate the heat front velocity v based on the following formula:

[0032]

[0033] Among them, v represents the heat front velocity (m d -1 ), Δz represents the depth difference (m), P represents the step size (d), A...

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Abstract

The invention discloses a method for measuring a quantitative index of interaction between surface water and groundwater in a permafrost region, which comprises the following steps: measuring temperature values at sampling points in different depth at the bottom of a river bed by using a temperature measuring device and obtaining temperature time change data; estimating the heat front velocity v (formula) based on a formula; and predicting through the following formula according to the temperature time change data and the estimated heat front velocity v to obtain a quantitative index q of theinteraction between surface water and groundwater. The method for measuring a quantitative index of interaction between surface water and groundwater in a permafrost region in the invention has low dependence on the device, low cost, convenience for carrying and installation of the instrument. The invention proposes a new index for quantifying the strength of the interaction between the surface water and the groundwater and can accurately evaluate the complementary method of the surface water and the groundwater.

Description

technical field [0001] The invention belongs to the technical field of hydrological measurement, in particular to a method for measuring the quantitative index of the interaction between surface water and groundwater in permafrost regions. Background technique [0002] Due to the complexity of the interaction between surface water and groundwater, its observation and quantification are very difficult. Traditional hydrological observation methods, such as seepage meter observation, calculation of the relationship between hydraulic gradient and flow, and base flow cutting, etc., these methods have large uncertainties, and can only evaluate the total exchange volume, and cannot describe its internal process. In permafrost regions, traditional groundwater measurement methods cannot be implemented due to the aquifer effect of permafrost and cooler temperatures below the surface, and the current understanding of the interaction between surface water and groundwater in permafrost r...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 高坛光
Owner LANZHOU UNIVERSITY
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