Reservoir before-dam water body water temperature time-space distribution rule observation method

Abstract

The invention discloses a reservoir before-dam water body water temperature time-space distribution rule observation method, and belongs to the technical field of water power water engineering monitoring. The method comprises a reservoir before-dam water body water temperature time distribution rule observation and reservoir before-dam water body water temperature space distribution rule observation. The reservoir before-dam water body water temperature time distribution rule observation also comprises vertical water temperature distribution observation on a hydrologic year basis and water temperature time distribution rule observation on a daily basis. The reservoir before-dam water body water temperature space distribution rule observation also comprises water temperature observation vertical line arrangement and measuring point arrangement on a water temperature observation vertical line. According to the technical scheme provided by the invention, according to the reservoir before-dam water body vertical water temperature distribution rules on a hydrologic year basis and on a daily basis, such factors as before-dam water body flow-state distribution conditions, observation personnel and instrument safety guarantees and the like are taken into full consideration, and by use of the reservoir before-dam water body water temperature time and space distribution rule observation method, observation of reservoir before-dam water body water temperature time-space distribution rules is effectively covered, such that the accuracy of the overall observation result of reservoir water temperature distribution rules is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of hydropower engineering monitoring, and relates to a time-space distribution characteristic of water body heat in a reservoir, in particular to a method for observing the water temperature time-space distribution law of the water body in front of a reservoir dam. Background technique [0002] The construction of a reservoir generally reduces the flow velocity upstream of the dam, increases the water depth, and increases the water body, causing changes in heat distribution. Usually, the temperature is used to represent the spatiotemporal distribution of heat in the reservoir water. Changes in reservoir water temperature will have an impact on water quality, the reservoir area and the downstream environment. Therefore, the study of the spatial and temporal distribution characteristics of water body heat in the reservoir area is conducive to the targeted control and improvement of the ecological environment in...

AI Technical Summary

Problems solved by technology

In the 1920s, the United States began to systematically observe the water temperature of reservoirs. After the 1940s, many countries conducted in-depth research on the changing law of reservoir water temperature, the impact of water temperature on the environment, and the control and utilization of water temperature. However, China only started to carry out this research work in the 1960s. Therefore, the observation and research work on the distribution of water temperature changes in river reservoirs in my country is relatively lagging behind, especially the observation and research on the temporal and spatial distribution of water temperature in front of reservoir dams and related effects. , the technical methods and requirements for the observation of the temporal and spatial distribution of the water temperature in front of the reservoir dam lack the effective unity of relevant guidelines or norms, and the quality of the observation results of the temporal and spatial distribution of the water temperature in front of the reservoir dam generally has problems such as systematicness, representativeness, and low reliability. , it is of little reference significance to improve the research on the mathematical model of the change law of river water temperature in our country, the improvement of empirical formulas and the development of calculation software.

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