Affiliation:
1. College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
2. State Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, China
3. Chongqing Institute of Geology and Mineral Resources (CIGMR), Chongqing 400014, China
Abstract
Landslides frequently occur in the mountainous area of southwest China, resulting in infrastructure damage, as well as a loss of life and property. The use of interferometric synthetic aperture radar (InSAR) technology has become increasingly popular due to its wide coverage, high precision, and efficiency in identifying potential landslides in steep mountainous regions to mitigate risks. This study focused on the Mao County region in China and utilized a small baseline subset of InSAR (SBAS−InSAR) technology with Sentinel-1 and ALOS-2 data to identify the potential landslides and analyze their applicability. To ensure accuracy, the findings were verified using optical image and field surveys. Additionally, a comparative analysis was performed on C-band and L-band SAR data to examine differences in the coherence, geometric distortion, and displacement results, revealing that the L-band has clear advantages in the coherence, suitable observation coverage, and displacement results, while C-band can detect relatively slight displacements. This study aimed to determine the applicability of different SAR satellites for early landslide identification in steep mountainous areas, which can serve as a technical reference for selecting appropriate SAR data and enhancing InSAR identification abilities for potential landslides in the future.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China
Sichuan Province Science Fund for Distinguished Young Scholars
Fellowship of China Postdoctoral Science Foundation
State Key Laboratory of Geohazard Prevention and Geoenvironment Protection Independent Research Project
Open Research Fund Program of MNR Key Laboratory for Geo-Environmental Monitoring of Great Bay Area
Subject
General Earth and Planetary Sciences
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献