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Application analysis of remote sensing dynamic monitoring for geological hazards in southwest mountainous areas using domestic high resolution satellite data |
| FAN Min1, SUN Xiaofei1, SU Fenghuan2, JIANG Huabiao1, HAN Lei1 |
1. Geology Investigation Institute of Sichuan Province, Chengdu 610081, China;
2. Institute of Mountain Hazards and Environment, CAS, Chengdu 610041, China |
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Abstract For the purpose of promoting applications of domestic high resolution satellite products to geological hazard remote sensing survey and dynamic monitoring, the authors chose study areas in Sichuan,Chongqing and Guizhou, where people suffer from high risk and frequent geological hazards. On the basis of domestic high resolution satellite images obtained in 2014 and 2015, the authors conducted comparison and analysis to identify the dynamic changes in geological hazards. The authors also analyzed application results of domestic high resolution satellite products on geological hazard dynamic monitoring in the study areas, along with evaluating and exploring their practicability and prospect. In this way, the authors provide an objective basis for further applications and promotion of domestic high resolution satellite products on geological hazard remote sensing survey and dynamic monitoring in southwest mountainous areas. The results indicate that domestic high resolution satellites can provide good data quality in the remote sensing monitoring of geological hazards, and human-computer interactive interpretations for orthophoto images exhibit excellent results and accuracy. It is therefore held that the domestic satellites deserve application and promotion in the field of geological hazard remote sensing survey and dynamic monitoring in southwest mountainous areas.
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| Keywords
remote sensing image fusion
IHS transform
sparse basis
measurement matrix
OMP reconstruction
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Issue Date: 24 November 2017
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2017,
Vol. 29
