MONITORING OF GEOLOGICAL HAZARDS IN SHANGRI-LA BASED ON REMOTE SENSING TECHNOLOGY
Shangri-La is located in the hinterland of the Hengduan Mountain region of the Tibetan Plateau,a re-gion where a variety of geologic hazards,such as mudslides,landslides and avalanches,occur frequently.In or-der to monitor geologic hazards in key areas of the city,the study used Pléiades satellite data to conduct 1∶10 000-scale remote sensing monitoring of geologic hazards in the Diqing Economic Development Zone and the town of Tiger Leaping Gorge.At the same time,a 1∶50 000 scale remote sensing monitoring of key areas within the city was carried out using Resource 3 satellite data.The 1∶10 000 scale remote sensing monitoring identified more than 60 geohazards in Diqing Economic Development Zone and Tiger Leaping Gorge Town,whereas the 1∶50 000 scale monitoring identified 558 geohazards in a wider range of key areas in the city.The field validation results showed that both the 1∶10 000 and 1∶50 000 scale remote sensing monitoring achieved 100％accuracy.The results of this study emphasize the effectiveness and accuracy of remote sensing technology in monitoring geohazards,in-dicating that the technology is well suited for a comprehensive understanding and prevention of geohazards in Shangri-La city,with a wide range of applications.
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万方数据
