Contribution degree-based underground water level analysis method with copula function

A groundwater level and groundwater technology, applied in data processing applications, instruments, forecasting, etc., can solve problems such as lack of weights, not considering the contribution of groundwater level changes, and exploring the relationship between groundwater level changes, recharge and consumption, etc.

Inactive Publication Date: 2017-06-13
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0004] The main source of groundwater recharge is rainfall, and the main consumption is human exploitation. The current groundwater level analysis and research have limitations
First of all, the current research does not consider the contribution of the two to the change of groundwater level, and only takes the two as

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  • Contribution degree-based underground water level analysis method with copula function
  • Contribution degree-based underground water level analysis method with copula function
  • Contribution degree-based underground water level analysis method with copula function

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Embodiment Construction

[0047] The method for groundwater level analysis based on the contribution degree of the Kopler function proposed by the present invention comprises the following steps:

[0048] (1) Obtain the relevant data of the area to be analyzed, including: Obtain the annual average groundwater level data of the area to be analyzed in the last 30 years from the hydrological department of the area to be analyzed A 年 and minimum groundwater table data A 低 , obtain the groundwater consumption C of the primary industry, secondary industry, and tertiary industry in the area to be analyzed from the government planning department of the area to be analyzed in the last 30 years 1 、C 2 、C 3 And obtain the total groundwater consumption C in each year in the last 30 years in the area to be analyzed, and obtain the mid-year rainfall data B in the last 30 years in the area to be analyzed from the hydrological department of the area to be analyzed 年 , from the added value D of the primary industry ...

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Abstract

The invention relates to a contribution degree-based underground water level analysis method with a copula function and belongs to the technical field of joint probability analysis. The method comprises the steps of determining usage amounts of underground water in different industries to obtain an underground water consumption index which represents underground water consumption; analyzing the contribution degree of rainfall and consumption indexes for an underground water level; and constructing a three-dimensional copula function in consideration of the contribution degree, analyzing a dynamic relation between an underground water level change and a consumption supply from the aspect of probability, and providing a basis for decision makers in combination with rainfall prediction or regional socio-economic development planning. By use of the method, the probability of the underground water level which may reach a certain value when the economic development reaches different levels can be researched according to prediction for future rainfall, and the probability provides a reference for regional economic development; or the possibility of different underground water levels under different rainfall conditions is researched according to the economic development prediction and provides a basis for underground water protection.

Description

technical field [0001] The invention relates to a groundwater level analysis method based on a contribution degree of a Copula function, and belongs to the technical field of joint probability analysis. Background technique [0002] As an important strategic resource for sustainable economic and social development, water plays an irreplaceable role. As an important part of it, groundwater resources not only make up for the lack of regional water supply caused by the uneven distribution of surface water resources in time and space, but also support the harmony of the ecological environment. Groundwater has provided water source assurance and made great contributions to the development of the national economy and the improvement of people's living standards. However, in recent years, due to disorderly exploitation, groundwater has been seriously overexploited, especially in Hebei, Shanxi and other places, causing the groundwater level to continue to decline. and a series of w...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q10/04G06Q50/26
CPCG06Q10/063G06Q10/04G06Q50/26
Inventor 张梦婕蒋云钟朱永楠杨朝晖阚光远田雨于赢东贺华翔邓晓雅
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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