Mud-rock flow geological disaster identification and determination method based on 3S technology

Abstract

The invention discloses a mud-rock flow geological disaster identification and determination method based on a 3S technology. The method comprises the steps of: 1) disaster positioning, wherein technology personnel carry out positioning on a preset identification and determination disaster area by means of a GPS; 2) according to the positioned disaster position, obtaining satellite image data by means of an RS remote sensing technology; 3) according to the positioned disaster position, obtaining DEM data by means of the RS remote sensing technology; 4) data fusion, wherein the satellite image data and the DEM data are merged, and technical processing is carried out to generate visual 3D landform images; 5) disaster analyzing, wherein present situation and history data analysis is carried out through the 3D images to preliminarily judge the possible scale and form of a disaster; and 6) interpretation analyzing, wherein the above data and images are further processed by means of interpretation analyzing, and data of a drafted management area drainage area analysis graph. The identification and determination method is convenient, low in cost and effective; in addition, by adopting the method, positioning analysis is carried out on a potential mud-rock flow generation area, and determination of the mud-rock flow scale and the harm degree is realized.

Description

technical field [0001] The technology is applicable to the technical field of identification and judgment of geological disasters such as mud-rock flow, and is specifically a method for identifying and judging mud-rock flow geological disasters based on 3S technology. Background technique [0002] The traditional identification and judgment of debris flow geological disasters are mostly based on the scale, loss, frequency and other data of disasters that have occurred in the disaster area. areas were not identified in a timely manner. [0003] The traditional way is to first take on-site geological surveying, surveying and other work before judging the potential of disasters. It is a drop in the bucket for the investigation and prevention and control of geological disasters in a large range, and the efficiency is low. [0004] The 3S technology, namely GPS global positioning system, RS remote sensing technology, and GIS geographic information system, is a convenient, fast, ...

AI Technical Summary

Problems solved by technology

[0002] The traditional identification and judgment of debris flow geological disasters are mostly based on the scale, loss, frequency and other data of disasters that have occurred in the disaster area. of regions were not identified in a timely manner

[0003] The traditional way is to first take on-site geological surveying, surveying and other work before judging the potential of disasters. It is a drop in the bucket for the investigation and prevention and control of geological disasters in a large range, and the efficiency is low

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