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Mountain torrent disaster critical rainfall index calculation method and system

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, and achieves the goal of extending the forecast period of early warning. Effect

Active Publication Date: 2019-10-01
UNIV OF JINAN
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  • Claims
  • Application Information

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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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  • Mountain torrent disaster critical rainfall index calculation method and system
  • Mountain torrent disaster critical rainfall index calculation method and system
  • Mountain torrent disaster critical rainfall index calculation method and system

Examples

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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] Such as 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...

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 mountain torrent disaster critical rainfall index calculation method and system. The mountain torrent disaster critical rainfall index calculation method comprises the steps:determining a characteristic time period of a mountain torrent disaster; carrying out sliding statistics on the excitation rainfall of each characteristic time period; calculating early-stage influence rainfall corresponding to the excitation rainfall in each characteristic time period; based on the excitation rainfall of each characteristic time period where the mountain torrent disaster occursand the early-stage influence rainfall corresponding to the excitation rainfall, constructing an excitation rainfall and early-stage effective rainfall state space of each characteristic time period of the mountain torrent disaster; based on the Fisher algorithm and the state space, establishing a critical relationship model of exciting rainfall and early-stage influencing rainfall in each characteristic time period of the mountain torrent disaster, obtaining a classification linear discriminant equation, and calculating a critical rainfall value of each characteristic time period according tothe classification linear discriminant equation; and inputting the excitation rainfall of each characteristic time period of the to-be-identified disaster prevention object and the early-stage influence rainfall corresponding to the excitation rainfall of each characteristic time period into the critical relationship model, and outputting an alarm or non-alarm result.

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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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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