Mountain torrent disaster susceptibility evaluation method based on ridge model tree algorithm

A kind of easy-to-fire and model tree technology, applied in the field of mountain torrent disaster assessment, can solve the problems of high data source, poor versatility, threats to people's personal and property safety, etc., and achieve the effect of promoting research, accurate research results, and precise positioning of disasters
CN114493243AActive Publication Date: 2022-05-13HOHAI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
HOHAI UNIV
Publication Date
2022-05-13

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Abstract

The invention discloses a mountain torrent disaster susceptibility assessment method based on a ridge model tree algorithm, and the method comprises the following steps: S1, data collection and data preprocessing: collecting small-watershed attribute data of a research region, building a corresponding index system, carrying out data cleaning and data preprocessing, and selecting a sample as model input, s2, screening mountain torrent risk susceptibility factors: calculating by taking the historical mountain torrent times of each small watershed as dependent variables and taking other attributes as independent variables, and screening flood regulation factors. The method combines a machine learning algorithm with a GIS (Geographic Information System) to carry out mountain torrent risk susceptibility prediction and mapping research; compared with a traditional spatial analysis method and a single machine learning model, the method has the advantages that a more accurate small-watershed mountain torrent susceptibility map can be provided, small-watershed mountain torrent disaster susceptibility evaluation and mapping can be accurately and efficiently carried out, the disaster can be more accurately positioned, and the disaster susceptibility can be evaluated.
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Description

technical field

[0001] The invention relates to the technical field of mountain torrent disaster assessment, in particular to a mountain torrent disaster susceptibility assessment method based on a ridge model tree algorithm. Background technique

[0002] As a mountainous country, my country has a typical East Asian monsoon climate. Torrential rains cause frequent mountain torrent disasters, which are characterized by wide range, high frequency, short duration, and great harm. At present, mountain torrent disasters occur frequently in China, causing serious damage to national life and property safety. Huge threat, risk assessment and mapping of flash flood-prone areas is an effective means of preventing flash flood disasters. At present, there are many patents applied to the research of flash flood risk susceptibility assessment and mapping, and the application number is 201910543954.X In the Chinese patent "A method and system for mountain torrent disaster risk assessment of ...

Claims

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