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A non-uniform two-variable design flood estimation method based on water-heat coupling balance

A water-heat coupling and consistent technology, applied in design optimization/simulation, computer-aided design, calculation, etc., can solve problems that have not been reported in the literature

Active Publication Date: 2022-08-05
WUHAN UNIV
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Problems solved by technology

However, there is no literature report on the application of the Budyko formula to carry out the flood calculation of the non-uniform two-variable design under the changing environment

Method used

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  • A non-uniform two-variable design flood estimation method based on water-heat coupling balance
  • A non-uniform two-variable design flood estimation method based on water-heat coupling balance
  • A non-uniform two-variable design flood estimation method based on water-heat coupling balance

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Embodiment Construction

[0057] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and the accompanying drawings. as a limitation of the present invention.

[0058] see figure 1 , a non-uniform two-variable design flood estimation method based on water-heat coupling balance, including the following steps:

[0059] Step 1. Basic meteorological and hydrological data collection and sampling

[0060] Collect daily precipitation, temperature, wind speed, relative humidity, sunshine duration, measured evapotranspiration, and multi-year series observation data of controlled hydrological station flow in the basin, and count the annual maximum flood peak, annual maximum 7-day runoff, saturated water pressure, actual water Air pressure, net surface radiation, soil heat flux, psychrometric constant.

[0061] Step 2, basic data processing: using the characteristic pa...

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Abstract

The invention involves the field of flood control safety design technology in the reservoir, and the non -consistent two variable design of the non -consistent two variables based on water thermal coupling balance is publicly pushed.Observation data for many years, establish a watershed water -thermal coupling balance equation, analyze the average noodle feature parameters of the annual basin; according to the water thermal coupling balance equation, push the flood single variable distribution function under non -consistent conditions;The consistency characteristics are used to establish a g -copula (G -h Copula) method to establish the flooding and flood probability distribution function under non -consistency conditions to find the design value of flood peaks under the condition of non -consistency conditions.The invention can fully consider the impact of climate change and human activities on the characteristics of the flood. At the same time, the flooding volume is most likely to combine models to provide important and feasible references for the push of floods in the two variables of non -consistent reservoirs in the change environment.

Description

technical field [0001] The invention relates to the technical field of reservoir flood control safety design, in particular to a non-uniform two-variable design flood estimation method based on water-heat coupling balance. Background technique [0002] Design flood is an important basis for determining the construction scale of water conservancy and hydropower projects and formulating operation and management strategies, and is of great significance for guiding reservoir operation and scheduling and comprehensive planning and utilization of water resources. The traditional design flood calculation in my country generally assumes that the hydrological series obeys the consistency, and adopts the peak quantity and frequency combination method to determine the design value. The same-frequency combination method fails to fully tap the inherent laws of hydrological events, and it is difficult to scientifically assess flood risk. In addition, due to the influence of climate chang...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F111/08G06F113/08G06F119/08
CPCG06F30/20Y02A10/40Y02A90/10
Inventor 顾磊陈杰明波王惠民尹家波
Owner WUHAN UNIV
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