Debris flow disaster early warning method and system based on runoff confluence simulation

A debris flow and disaster technology, applied in the fields of computer simulation and hydrodynamics, can solve the problems of a large amount of equipment, inability to early warning of debris flow disasters, and inability to realize debris flow disaster monitoring and early warning, etc., to achieve the effect of enhanced spatial accuracy and improved time range.

Active Publication Date: 2021-09-17
西藏林芝市气象局
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AI Technical Summary

Problems solved by technology

However, the currently commonly used methods and products are not good for early warning of debris flow disasters in a long period of time, and the amount of equipment that needs to be invested in the early stage is large, and effective monitoring and monitoring of debris flow disasters in a wide range cannot be achieved. early warning

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  • Debris flow disaster early warning method and system based on runoff confluence simulation
  • Debris flow disaster early warning method and system based on runoff confluence simulation
  • Debris flow disaster early warning method and system based on runoff confluence simulation

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Embodiment Construction

[0056] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be clear that the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Those skilled in the art should know that the following specific embodiments or specific implementation methods are a series of optimized configurations listed by the present invention to further explain the specific content of the invention, and these configurations can be combined with each other or Used in conjunction with each other, at the same time, the following specific examples or implementations are only used as optimized configurations, and are not understood as limiting the protection scope of the present inventi...

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Abstract

The invention provides a debris flow disaster early warning method and system based on runoff confluence simulation, wherein the method comprises the steps: carrying out small watershed division of an early warning area, and taking the small watershed division as an early warning basic unit; obtaining a debris flow disaster risk probability background value, a runoff confluence water depth and a gully opening distance factor, and calculating a debris flow disaster early warning result; based on historical debris flow disaster point data of the early warning area, calculating a debris flow disaster risk probability background value and a weight of runoff confluence water depth; and calculating a debris flow disaster early warning result based on the debris flow disaster risk probability background value, the runoff confluence water depth and the gully opening distance factor within the to-be-predicted time in the early warning area so as to carry out debris flow disaster early warning judgment. According to the method and system, early warning of debris flow disasters can be carried out more quickly and accurately.

Description

technical field [0001] The invention relates to the fields of hydrodynamics and computer simulation. It specifically involves a series of key technologies for runoff and flow simulation, especially the method and system for early warning of debris flow disasters based on runoff and flow. Background technique [0002] The central and western regions of my country are mostly mountainous landforms, located in a subtropical humid climate, with humid and rainy summers. Under such landform and climate conditions, debris flow disasters induced by heavy rainfall occur frequently every year, posing a great threat to local life and property safety. Under certain topographical conditions, sudden heavy rainfall will lead to the movement of mountain provenance and cause it to move and accumulate in valleys. Accompanied by the erosion of heavy precipitation and the movement and accumulation of provenance, a debris flow is formed. The eruption speed of the debris flow is fast and carries...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/10
CPCG08B21/10
Inventor 陈宫燕陈军旦增普布桑姆德庆央宗阿旺卓玛达桑杨斌
Owner 西藏林芝市气象局
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