Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data
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 eff...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-09-01
|
| Series: | Remote Sensing |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-4292/15/18/4538 |
| _version_ | 1827723743408947200 |
|---|---|
| author | Jin Deng Keren Dai Rubing Liang Lichuan Chen Ningling Wen Guang Zheng Hong Xu |
| author_facet | Jin Deng Keren Dai Rubing Liang Lichuan Chen Ningling Wen Guang Zheng Hong Xu |
| author_sort | Jin Deng |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T22:05:03Z |
| format | Article |
| id | doaj.art-1aeeb4a959f34f5ba97f1fbe1ffa6fa9 |
| institution | Directory Open Access Journal |
| issn | 2072-4292 |
| language | English |
| last_indexed | 2024-03-10T22:05:03Z |
| publishDate | 2023-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Remote Sensing |
| spelling | doaj.art-1aeeb4a959f34f5ba97f1fbe1ffa6fa92023-11-19T12:49:07ZengMDPI AGRemote Sensing2072-42922023-09-011518453810.3390/rs15184538Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band DataJin Deng0Keren Dai1Rubing Liang2Lichuan Chen3Ningling Wen4Guang Zheng5Hong Xu6College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Sciences, Chengdu University of Technology, Chengdu 610059, ChinaCollege of Earth Sciences, Chengdu University of Technology, Chengdu 610059, ChinaChongqing Institute of Geology and Mineral Resources (CIGMR), Chongqing 400014, ChinaCollege of Earth Sciences, Chengdu University of Technology, Chengdu 610059, ChinaState Key Laboratory of Geohazard Prevention and Geoenvironment Protection, Chengdu University of Technology, Chengdu 610059, ChinaChongqing Institute of Geology and Mineral Resources (CIGMR), Chongqing 400014, ChinaLandslides 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.https://www.mdpi.com/2072-4292/15/18/4538SBAS−InSARALOS-2Sentinel-1geometric distortionapplicability analysis |
| spellingShingle | Jin Deng Keren Dai Rubing Liang Lichuan Chen Ningling Wen Guang Zheng Hong Xu Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data Remote Sensing SBAS−InSAR ALOS-2 Sentinel-1 geometric distortion applicability analysis |
| title | Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data |
| title_full | Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data |
| title_fullStr | Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data |
| title_full_unstemmed | Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data |
| title_short | Interferometric Synthetic Aperture Radar Applicability Analysis for Potential Landslide Identification in Steep Mountainous Areas with C/L Band Data |
| title_sort | interferometric synthetic aperture radar applicability analysis for potential landslide identification in steep mountainous areas with c l band data |
| topic | SBAS−InSAR ALOS-2 Sentinel-1 geometric distortion applicability analysis |
| url | https://www.mdpi.com/2072-4292/15/18/4538 |
| work_keys_str_mv | AT jindeng interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT kerendai interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT rubingliang interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT lichuanchen interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT ninglingwen interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT guangzheng interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata AT hongxu interferometricsyntheticapertureradarapplicabilityanalysisforpotentiallandslideidentificationinsteepmountainousareaswithclbanddata |