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Calculation method and system for critical rainfall index of mountain torrent disaster

An index calculation and rainfall technology, which is applied in the field of critical rainfall index calculation method and system for mountain torrent disasters, can solve the problems of empirical formula, generalization of rainfall patterns and parameters, and difficulty in ensuring the calculation accuracy of critical rainfall, so as to achieve the goal of extending the forecast period of early warning. Effect

Active Publication Date: 2021-10-26
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most of them are based on design concepts, and there are problems such as empirical formulas, rain patterns, and parameter generalization, and it is difficult to guarantee the accuracy of critical rainfall calculations.

Method used

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  • Calculation method and system for critical rainfall index of mountain torrent disaster
  • Calculation method and system for critical rainfall index of mountain torrent disaster
  • Calculation method and system for critical rainfall index of mountain torrent disaster

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1, this embodiment provides a calculation method for the critical rainfall index of mountain torrent disasters;

[0052] like figure 1 As shown, the calculation method of the critical rainfall index for mountain torrent disasters includes:

[0053] Determine the characteristic periods of flash flood disasters; slide statistics of the induced rainfall in each characteristic period; calculate the previous impact rainfall corresponding to the triggered rainfall in each characteristic period;

[0054] Based on the induced rainfall and the previous impact rainfall corresponding to the induced rainfall in each characteristic period of the flash flood disaster and the non-occurrence, the state space of the induced rainfall and the previous effective rainfall in each characteristic period of the mountain torrent disaster is constructed;

[0055] Based on the Fisher algorithm and the state space of the induced rainfall in each characteristic period of the mountain to...

Embodiment 2

[0129] Embodiment 2, this embodiment provides a critical rainfall index calculation system for mountain torrent disasters;

[0130] The critical rainfall index calculation system for mountain torrent disasters, including:

[0131] The characteristic period determination module of mountain torrent disaster;

[0132] Sliding statistics module of excited rainfall in each characteristic period;

[0133] The pre-impact rainfall calculation module corresponding to the excitation rainfall in each characteristic period;

[0134] The state space construction module is configured to construct the state space of the induced rainfall and the previous effective rainfall in each characteristic period of the mountain torrent disaster based on the induced rainfall and the previous impact rainfall corresponding to the induced rainfall in each characteristic period when the torrent disaster occurred and did not occur;

[0135] The critical relationship model building module is configured to e...

Embodiment 3

[0137] Embodiment 3. This embodiment also provides an electronic device, including a memory, a processor, and computer instructions stored in the memory and run on the processor. When the computer instructions are executed by the processor, each step in the method is completed. For the sake of brevity, the operation will not be repeated here.

[0138] Described electronic device can be mobile terminal and non-mobile terminal, and non-mobile terminal comprises desktop computer, and mobile terminal comprises smart phone (Smart Phone, such as Android mobile phone, IOS mobile phone etc.), smart glasses, smart watch, smart bracelet, tablet computer , laptops, personal digital assistants and other mobile Internet devices that can communicate wirelessly.

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Abstract

The invention discloses a method and system for calculating the critical rainfall index of a mountain torrent disaster, which determines the characteristic period of the torrent disaster; slides and counts the stimulated rainfall in each characteristic period; calculates the early impact rainfall corresponding to the stimulated rainfall in each characteristic period; based on the occurrence and The induced rainfall of each characteristic period without flash flood disasters and the corresponding previous impact rainfall of the induced rainfall, construct the state space of the induced rainfall and the previous effective rainfall in each characteristic period of the flash flood disaster; based on the Fisher algorithm and the state space, establish the excitation of each characteristic period of the flash flood disaster The critical relationship model between rainfall and previous impact rainfall obtains the classification linear discriminant equation, and calculates the critical rainfall value of each characteristic period according to the classification linear discriminant equation; The previous impact rainfall corresponding to the rainfall is input into the critical relationship model, and the result of alarm or no alarm is output.

Description

technical field [0001] The invention relates to the technical field of mountain torrent disaster research, in particular to a calculation method and system for critical rainfall index of mountain torrent disaster. Background technique [0002] The statements in this section merely mention the background technology related to the present invention and do not necessarily constitute the prior art. [0003] In the process of realizing the present invention, the inventor finds that there are following technical problems in the prior art: [0004] The methods for calculating critical rainfall are generally divided into two categories. One is based on data-driven methods, that is, based on the statistical induction method of a large amount of historical data, to calculate the previous cumulative rainfall when flash flood disasters occur, such as statistical induction method, spatial interpolation method and The other type is based on the hydrological hydraulic method, and the crit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y02A10/40
Inventor 桑国庆王维林刘有春朱龙腾刘昌军张晨武玮王永森
Owner UNIV OF JINAN
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