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Lake water resource quantity assessment and prediction method

A prediction method and technology of water resources, applied in the field of assessment and prediction of lake water resources, can solve the problems of difficult to effectively evaluate lake water, not considering the process of lake water balance, high data requirements, etc.

Inactive Publication Date: 2019-06-07
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

The traditional method mainly obtains the value of various recharge and discharge items through the observation data of the hydrological station and the evaluation of field experiments, and then evaluates and calculates the water volume of the lake. This method not only requires high data, but also consumes a lot of manpower and material resources. It is difficult to effectively evaluate the water volume of multiple lakes in a large area, which has great limitations
In recent years, with the continuous development of remote sensing technology, more and more scholars have used remote sensing data to assess the water volume of lakes. Estimated without considering the lake water balance process, the accuracy of the assessment results needs to be improved

Method used

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  • Lake water resource quantity assessment and prediction method
  • Lake water resource quantity assessment and prediction method
  • Lake water resource quantity assessment and prediction method

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Embodiment 1

[0032] A method for assessing and predicting lake water volume, the steps comprising:

[0033] 1. Coupling of distributed hydrological model and groundwater simulation model

[0034] On the one hand, the lake is closely related to the surface water circulation process through precipitation, evaporation, upstream channel inflow and other processes. On the other hand, because the lake bottom seepage and aquifer seepage recharge process are inseparable from the groundwater cycle process, the surface-groundwater joint process is realized. Simulation can effectively improve the accuracy of lake water assessment. The interaction of lakes with surface water and groundwater such as figure 1 shown. There are many forms of water volume interaction between surface water and groundwater aquifers, only the ones related to lakes are shown in the figure. figure 1 The part above the dotted line can be simulated by the distributed hydrological model, and the part below the dotted line can b...

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Abstract

The invention discloses a lake water resource quantity assessment and prediction method. The method comprises the following steps: firstly carrying out ground surface-underground water joint simulation to obtain each water balance item of the lake, and then evaluating the water quantity of the lake; and then predicting the lake water quantity in the future scene by combining climate mode output results in different climate change scenes. Compared with a traditional method, the method has the advantages of being low in investment, high in precision and high in physical mechanism.

Description

technical field [0001] The invention belongs to the field of water resources evaluation, and relates to a method for evaluating and predicting the amount of lake water resources by means of models. Background technique [0002] Lakes are one of the most widely distributed water bodies on land. They are an important part of the terrestrial hydrosphere and are closely related to the natural water cycle. As natural resources closely related to human survival and development, lakes play an important role in regulating regional climate, supplying urban and rural water, improving ecological environment, protecting biodiversity, agricultural irrigation, sightseeing, shipping, transportation, power generation and breeding, etc. The core of lake resources is water resources, which is the material basis for maintaining the stable and healthy development of lake ecosystems. Therefore, it is of great significance to reasonably evaluate and predict the amount of lake water resources. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q10/06G06Q50/06
CPCY02A10/40Y02A90/10
Inventor 丁相毅张博刘家宏张盼伟李昆赵晓辉曹岩严聆嘉吴雷祥
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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