SBAS-InSAR-based detection of geological hazards in alpine gorge areas near the China-Myanmar border

YI Bangjin; HUANG Cheng; FU Tao; SUN Jixing; ZHU Baoquan; ZHONG Cheng

doi:10.6046/zrzyyg.2022261

2023 Vol. 35, No. 4

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YI Bangjin, HUANG Cheng, FU Tao, SUN Jixing, ZHU Baoquan, ZHONG Cheng. 2023. SBAS-InSAR-based detection of geological hazards in alpine gorge areas near the China-Myanmar border. Remote Sensing for Natural Resources, 35(4): 186-191. doi: 10.6046/zrzyyg.2022261

Citation:

YI Bangjin, HUANG Cheng, FU Tao, SUN Jixing, ZHU Baoquan, ZHONG Cheng. 2023. SBAS-InSAR-based detection of geological hazards in alpine gorge areas near the China-Myanmar border. Remote Sensing for Natural Resources, 35(4): 186-191. doi: 10.6046/zrzyyg.2022261

SBAS-InSAR-based detection of geological hazards in alpine gorge areas near the China-Myanmar border

1. Yunnan Institute of Geological Science, Kuming 650051, China
;2. Yunnan Institute of Geological Environment Monitoring Institute, Kuming 650216, China
;3. Badong National Observation and Research Station of Geohazards, China University of Geosciences, Wuhan, Wuhan 430079, China

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Corresponding author: ZHONG Cheng

Received Date: 05 July 2022

Revised Date: 20 January 2023

Publish Date: 21 December 2023

Abstract

Abstract

Fugong County of Yunnan Province, located near the Yunnan-Myanmar border, is a typical alpine gorge area with a fragile geological environment. Geological hazards, including landslide, collapse, and debris flow, occur frequently in this area, thus posing a severe threat to the safety of people's lives and properties, economic development, and even national defense security. However, high mountains and thick forests in this area complicate manual investigations and increase the risk. Hence, this study conducted surface deformation monitoring and geological hazard detection in this alpine gorge area by employing the small baseline subset - interferometric synthetic aperture radar (SBAS-InSAR) technology based on the Sentinel-1A satellite data. The identification results were verified by combining ground surveys and the interpretation of optical remote sensing images. The findings indicate that most of the deformation zones in this area exhibit fragile geological conditions and are prone to landslide instability in the case of heavy rainfall, thus requiring continuous observation. This study offers a valuable reference for investigating and monitoring landslides in alpine gorge areas.
- geological hazard /
- time series /
- InSAR /
- hazard detection /
- alpine gorge