Method for quantitatively solving basin water reserve change elasticity coefficient of runoff

A technology of elastic coefficient and reserve, which is applied in data processing applications, climate sustainability, electrical digital data processing, etc., can solve the problems that no research has given to quantitatively solve the elastic coefficient of water reserve change, etc.

Active Publication Date: 2019-08-09
INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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Problems solved by technology

However, few studies have given a direct quantitative solution to the elastic coefficient of water storage change

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  • Method for quantitatively solving basin water reserve change elasticity coefficient of runoff
  • Method for quantitatively solving basin water reserve change elasticity coefficient of runoff
  • Method for quantitatively solving basin water reserve change elasticity coefficient of runoff

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Embodiment Construction

[0015] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0016] A method for quantitatively solving the elastic coefficient of runoff water storage changes, comprising the following specific steps:

[0017] Water balance equation considering changes in water storage (Tang et al., 2017):

[0018]

[0019] Among them, E is evaporation, P is precipitation, ΔS is the change of water storage in the basin, E p is the potential evapotranspiration, φ s Φ is a parameter reflecting seasonality, α s is a parameter reflecting the condition of the underlying surface of the watershed;

[0020] The elastic coefficient is the ratio of the rate of change of the dependent variable to the rate of change of the independent variable, and the elastic coefficient of runoff refers to the r...

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Abstract

The invention relates to a method for quantitatively solving a basin water reserve change elasticity coefficient of the runoff, which decomposes the effective rainfall in the basis of a water balanceequation considering basin water reserve change into a difference between rainfall and basin water reserve change, and finds out the water reserve change elasticity coefficient of the runoff through further derivation on the basis. By adopting the technical scheme, when the rainfall, potential evapotranspiration, basin water reserve change and evaporation observed in a historical period exist, thesensitivity (namely the water reserve elasticity coefficient of the runoff) of the runoff to the basin water reserve change can be quantitatively solved. The sensitivity of the runoff is a relativelystable characteristic, so that the runoff change rate caused by the water reserve change under the human activity conditions of future climate change or underground water exploitation and the like can be estimated through the water reserve elasticity coefficient of the runoff obtained in the historical period, and a technical guarantee is provided for comprehensively evaluating the response of the water resource quantity under the change environment.

Description

technical field [0001] The invention belongs to the technical field of hydrology and water resources, and in particular relates to a method for quantitatively solving the elastic coefficient of runoff water storage variation. Background technique [0002] The change of water storage in the basin (ΔS) mainly includes the change of groundwater storage, the change of soil water content and the change of surface water storage in the basin. It is one of the key elements in the water balance of the basin, which is the difference between the total precipitation of the basin and the runoff and evaporation. It is the key factor affecting the runoff of the watershed. In recent years, with the exploitation of groundwater resources by humans and the frequent occurrence of extreme climate events, the water storage changes in the basin have become more and more obvious, which has an increasing impact on the runoff of the basin. [0003] Elasticity coefficient is one of the important tec...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06Q50/06
CPCG06Q50/06G06F30/20Y02A90/10
Inventor 唐寅汤秋鸿王中根肖瀚
Owner INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS
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