Flood season staging dynamic flood control water level determination method based on pre-discharge rule

Abstract

The invention provides a flood season staging dynamic flood control water level determination method based on a pre-discharge rule. The flood season staging dynamic flood control water level determination method based on the pre-drainage rule comprises the following steps: step S1, according to atmospheric circulation background of a drainage basin where a reservoir is located and seasonal law analysis of rainstorm flood, performing refined division and staging on flood season analysis, the method comprises the following steps: calculating the degree that each time period of a flood season belongs to a main flood season by selecting representative indexes describing flood season characteristics, finally dividing the flood season of the reservoir into a plurality of sections, and obtaining flood hydrolines of different frequencies of the corresponding sections; and S2, the flood control water levels of all the staging intervals under different frequencies are analyzed, and the flood control water levels Z flood under different intervals and different frequencies are used as regulation starting water levels for trial calculation. According to the method, the flood control safety of the reservoir can be guaranteed, and the flood resource utilization efficiency can be exerted to the maximum extent in combination with the result of flood season staging.

Description

technical field [0001] The invention relates to a method for determining a dynamic flood limit water level by stages in flood season based on a pre-drainage rule. Background technique [0002] China is the most populous country in the world and the country that uses the most water in the world, but its total water resources only occupy the sixth place in the world. There are also differences in seasonal climate and topography between the north and the south, which are even more severe. the current situation of water scarcity. With the rapid economic and social development, the problem of drought and water shortage is becoming more and more serious, and the contradiction between supply and demand of water resources is bound to intensify. Through the utilization of flood resources, the shortage of water resources can be effectively alleviated, and the sustainable utilization of water resources can be effectively realized. [0003] By fully tapping the water resources potenti...

AI Technical Summary

Problems solved by technology

At present, the conventional flood season scheduling method is to ensure the safety of flood control in the flood season to the greatest extent. The flood limit water level of the reservoir is set to a relatively low value. In this way, although the reservoir can effectively deal with the flood in the flood season and ensure the safety of the flood season, a large amount of water is often discarded in the flood season. , and fell into an embarrassing situation where there was no water to store to the normal water level in the post-flood season

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