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

A debris flow and disaster technology, which is applied in the field of debris flow disaster early warning methods and systems, can solve the problems of large amount of equipment, inability to provide early warning of debris flow disasters, and inability to realize debris flow disaster monitoring and early warning, etc., to achieve enhanced spatial accuracy and improved time range. Effect

Active Publication Date: 2022-05-27
西藏林芝市气象局
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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 and flow simulation
  • Debris flow disaster early warning method and system based on runoff and flow simulation
  • Debris flow disaster early warning method and system based on runoff and flow simulation

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Embodiment Construction

[0056] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the described embodiments are only some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Those skilled in the art should know that the following specific embodiments or specific implementation manners are a series of optimized setting methods listed in the present invention to further explain the specific content of the invention, and these setting methods can be combined with each other or Used in relation to each other, meanwhile, the following specific embodiments or implementation manners are only used as an optimal setting manner, and are not used as an understanding to limit the protection scope of the presen...

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Abstract

The invention provides a debris flow disaster early warning method and system based on runoff and confluence simulation. The method includes: dividing the early warning area into small watersheds as the basic unit of early warning; The distance factor is used to calculate the early warning results of debris flow disasters; based on the historical debris flow disaster point data in the early warning area, the background value of the risk probability of debris flow and the weight of the runoff confluence water depth are calculated; The runoff confluence water depth and gully mouth distance factor are used to calculate the debris flow disaster early warning results, so as to carry out debris flow disaster early warning judgments. This scheme can carry out early warning of debris flow disasters more quickly and accurately.

Description

technical field [0001] The invention relates to the fields of hydrodynamics and computer simulation. Specifically, it involves a series of key technologies for runoff confluence simulation, especially a method and system for early warning of debris flow disasters based on runoff confluence. Background technique [0002] The central and western regions of my country are dominated by mountainous landforms and are located in a subtropical humid climate with humid and rainy summers. Under such landform and climatic conditions, debris flow disasters caused by heavy rainfall occur frequently every year, posing a great threat to the safety of local life and property. Under certain topographical conditions, sudden and heavy precipitation will cause the movement of mountain provenance, causing it to move and accumulate in the valley. Along with the erosion of strong precipitation and the accumulation of provenance, debris flows are formed. The debris flow erupts quickly and carries...

Claims

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Application Information

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Patent Type & Authority Patents(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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