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Remote Sensing
Volume 17
Issue 7
10.3390/rs17071284
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Technical Note

Deformation Monitoring Exploration of Different Elevations in Western Sichuan, China

by
Zezhong Zheng
1,2,*,
Yizuo Li
1,
Yong He
3,4,
Chuhang Xie
1,
Mingcang Zhu
5,
Tianming Shao
1,
Weifeng Huang
1,
Jinchi Hu
1,
Baiyan Su
6 and
Huahui Tang
7
1
School of Resources and Environment, University of Electronic Science and Technology of China, 2006 Xiyuan Ave., West Hi-Tech Zone, Chengdu 611731, China
2
Yangtze Delta Region Institute (Huzhou), University of Electronic Science and Technology of China, Huzhou 313000, China
3
Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu 610059, China
4
Sichuan Research Institute for Ecosystem Restoration & Geohazard Prevention, Chengdu 610084, China
5
Department of Natural Resources of Sichuan Province, Chengdu 610059, China
6
Office Service Center, Department of Natural Resources of Sichuan Province, Chengdu 610059, China
7
The 2nd Geological Brigade of Sichuan, Chengdu 610041, China
*
Author to whom correspondence should be addressed.
Remote Sens. 2025, 17(7), 1284; https://doi.org/10.3390/rs17071284
Submission received: 10 February 2025 / Revised: 22 March 2025 / Accepted: 1 April 2025 / Published: 3 April 2025
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Abstract

Interferometric Synthetic Aperture Radar (InSAR) is an invaluable tool for deformation monitoring. However, potential geological disaster hazards occurring in different elevation regions exhibit distinct surface deformation trends and distributions. The applicability of InSAR techniques at different elevations for monitoring potential geohazards remains uncertain. In this paper, the study area is firstly divided into typical geological disaster hazard zones based on mountainous elevation definition and SAR image elevation distribution, including areas below 1000 m, between 1000 m and 3500 m, and above 3500 m. Secondly, the spatial–temporal evolution characteristics of surface deformation from 2018 to 2020 in the study area are investigated, and potential geohazards are monitored by employing time-series InSAR techniques such as Persistent Scatterer InSAR (PS-InSAR), Small Baseline Subset InSAR (SBAS-InSAR), and Distributed Scatterer InSAR (DS-InSAR). Finally, the potential geological hazards detected by different InSAR monitoring algorithms are interpreted, and the characteristics of different InSAR monitoring algorithms in different elevation intervals are compared and analyzed. The results show that potential geological hazards are more frequent in areas between 1000 m and 3500 m in elevation, and DS-InSAR shows the best performance and accuracy in monitoring potential geological hazards in different elevation intervals.
Keywords: interferometric synthetic aperture radar; different elevation; surface deformation interferometric synthetic aperture radar; different elevation; surface deformation
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MDPI and ACS Style

Zheng, Z.; Li, Y.; He, Y.; Xie, C.; Zhu, M.; Shao, T.; Huang, W.; Hu, J.; Su, B.; Tang, H. Deformation Monitoring Exploration of Different Elevations in Western Sichuan, China. Remote Sens. 2025, 17, 1284. https://doi.org/10.3390/rs17071284

AMA Style

Zheng Z, Li Y, He Y, Xie C, Zhu M, Shao T, Huang W, Hu J, Su B, Tang H. Deformation Monitoring Exploration of Different Elevations in Western Sichuan, China. Remote Sensing. 2025; 17(7):1284. https://doi.org/10.3390/rs17071284

Chicago/Turabian Style

Zheng, Zezhong, Yizuo Li, Yong He, Chuhang Xie, Mingcang Zhu, Tianming Shao, Weifeng Huang, Jinchi Hu, Baiyan Su, and Huahui Tang. 2025. "Deformation Monitoring Exploration of Different Elevations in Western Sichuan, China" Remote Sensing 17, no. 7: 1284. https://doi.org/10.3390/rs17071284

APA Style

Zheng, Z., Li, Y., He, Y., Xie, C., Zhu, M., Shao, T., Huang, W., Hu, J., Su, B., & Tang, H. (2025). Deformation Monitoring Exploration of Different Elevations in Western Sichuan, China. Remote Sensing, 17(7), 1284. https://doi.org/10.3390/rs17071284

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