Article
Environmental Sciences
Yaning Yi, Xiwei Xu, Guangyu Xu, Huiran Gao
Summary: In this study, a semi-automated time-series interferometric synthetic aperture radar (InSAR) method was adopted to identify landslides and monitor their activity in the Kangding-Batang section of Shanghai-Nyalam Road. A total of 446 Sentinel-1 SAR images from January 2018 to December 2021 were collected and processed using open-source InSAR processing software. The results provide valuable information for road maintenance and disaster mitigation, and the semi-automated processing method can serve as a paradigm for landslide-related studies in other mountainous regions of the world.
Article
Environmental Sciences
Varvara Tsironi, Athanassios Ganas, Ioannis Karamitros, Eirini Efstathiou, Ioannis Koukouvelas, Efthimios Sokos
Summary: Kinematic behavior of active landslides in the area of Panachaikon Mountain was studied. The maximum displacement rate of each landslide was found to be located at its center. There is a correlation between rainfall and landslide motion, with the increase in total seasonal rainfall controlling the increase in displacement rate.
Article
Remote Sensing
Jiehua Cai, Lu Zhang, Jie Dong, Jinchen Guo, Yian Wang, Mingsheng Liao
Summary: Landslide hazards are increasing due to climate change and anthropogenic disturbance, posing significant threats to socio-economic safety and human life. A novel method combining InSAR and convolutional neural network (CNN) has been developed for automated identification of active landslides over wide areas, showing great potential for building inventories and regularly updating records of landslides.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
Article
Environmental Sciences
Jiawei Dun, Wenkai Feng, Xiaoyu Yi, Guoqiang Zhang, Mingtang Wu
Summary: The study focused on the analysis of landslides in the Hulukou Xiangbiling section of the Baihetan reservoir area before impoundment in the Jinsha River Basin, utilizing satellite parameters and terrain data. By quantitatively analyzing line-of-sight visibility, applying the SBAS technique, and combining SAR data with Google Earth imagery, 21 active landslides were accurately identified and confirmed through field verification.
Article
Engineering, Geological
Alexandra Urgilez Vinueza, Alexander L. Handwerger, Mark Bakker, Thom Bogaard
Summary: This study developed a new method to detect and quantify accelerations and decelerations of slow-moving areas using satellite-based data. The application of this method provides valuable information on the dynamics of surface displacement and can be used for studying the physical behavior of slow-moving slopes and regional hazard assessment.
Article
Environmental Sciences
Liming He, Panke Pei, Xiangning Zhang, Ji Qi, Jiuyang Cai, Wang Cao, Ruibo Ding, Yachun Mao
Summary: Spaceborne interferometric synthetic aperture radar (InSAR) techniques are important for landslide detection and monitoring, but they have limitations in detecting high and steep slope landslides. This study proposes sensitivity indices and conducts experimental and statistical analysis to evaluate the feasibility of time-series InSAR monitoring for steep slopes. The results show that the defined indices can quantitatively evaluate the feasibility of InSAR observations with GNSS data and qualitatively evaluate the feasibility of InSAR monitoring without GNSS data. The study demonstrates the generalizability and wide applicability of these indices for landslide monitoring.
Article
Remote Sensing
Jialun Cai, Guoxiang Liu, Hongguo Jia, Bo Zhang, Renzhe Wu, Yin Fu, Wei Xiang, Wenfei Mao, Xiaowen Wang, Rui Zhang
Summary: This research proposes an integrated algorithm based on Kalman filter for optimized estimation of multi-source landslide displacement, which improves the temporal resolution of landslide monitoring and achieves the prediction of subsequent displacement by dynamically integrating the displacements from multiple InSAR observations.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Environmental Sciences
Xingchen Zhang, Lixia Chen, Chao Zhou
Summary: Landslides along the Three Gorges Reservoir in China are a threat to coastal residents and waterway safety. This paper proposes an effective method for predicting the deformation trend of reservoir bank landslides to reduce false positive misjudgments. The Time-Series InSAR method and Sentinel-1A images from 2018 to 2022 were used for landslide deformation monitoring, and the Hurst index was calculated to characterize the deformation trend. The combination of Time-Series InSAR and the Hurst index can effectively monitor deformation and predict the stability trend of reservoir bank landslides.
Article
Environmental Sciences
Zijing Liu, Haijun Qiu, Yaru Zhu, Ya Liu, Dongdong Yang, Shuyue Ma, Juanjuan Zhang, Yuyao Wang, Luyao Wang, Bingzhe Tang
Summary: This study utilized time-series InSAR analysis to effectively identify landslides and monitor deformation, using single- and multi-look phases to increase measurement points density in topographically complex mountains and vegetation-covered slopes. The reliability of the InSAR results was verified through field investigations and UAV surveys, with detailed analysis of precursory movements and causative factors of a recent landslide. The study has practical significance for landslide early warning and risk mitigation.
Article
Environmental Sciences
Yiting Gou, Lu Zhang, Yu Chen, Heng Zhou, Qi Zhu, Xuting Liu, Jiahui Lin
Summary: Landslides are highly frequent and devastating geological disasters worldwide, and early monitoring and warning are crucial. This study used InSAR technology to analyze Sentinel-1A SAR data and monitor the long-term surface deformation of the Cheyiping landslide in western Yunnan Province, China. The results showed a strong correlation between landslide movement and seasonal rainfall, with seasonal accelerated deformation. This case study contributes to the understanding of the slow deformation mechanism and early hazard warning of the Cheyiping landslide.
Article
Engineering, Geological
Ya Liu, Haijun Qiu, Dongdong Yang, Zijing Liu, Shuyue Ma, Yanqian Pei, Juanjuan Zhang, Bingzhe Tang
Summary: This study utilized InSAR technique to accurately record time series displacement data of landslides and quantitatively studied the influence of rainfall on landslide deformation through wavelet analysis. The results show a yearly period for both rainfall and landslide deformation, with obvious seasonal variations on an annual scale. There is a strong positive correlation between the two with a lag time of about 45 days.
Article
Engineering, Civil
Wei Tang, Xiangjun Zhao, Gang Bi, Mingjie Chen, Siyu Cheng, Mingsheng Liao, Wenjun Yu
Summary: Seasonal surface deformation is related to groundwater extraction and recharge, and plays a role in guiding groundwater management and subsidence mitigation. In the Taiyuan basin, Northern China, seasonal ground displacement in response to aquifer compaction and expansion was observed, with a one-year periodicity. The deformation showed a correlation with groundwater levels and precipitation patterns.
JOURNAL OF HYDROLOGY
(2023)
Article
Engineering, Geological
Wangcai Liu, Yi Zhang, Xingmin Meng, Aijie Wang, Yuanxi Li, Xiaojun Su, Kaiqi Ma, Hengyuan Li, Guan Chen
Summary: This study proposes a novel approach to forecast the volume of potential landslides in alpine-canyon terrain by combining characteristics and synthetic aperture radar interferometry technology. The relationships between volume and characteristics of colluvial landslides and loess landslides were analyzed, and potential landslides were detected using InSAR technology. The study provides valuable insights for assessing and preventing potential landslide hazards in the study area.
Article
Geosciences, Multidisciplinary
Remzi Eker, Abdurrahim Aydin
Summary: This study successfully combined Synthetic Aperture Radar data, unmanned aerial vehicle images, and aerial photographs to conduct a long-term retrospective investigation of a large and destructive deep-seated, slow-moving landslide reactivated in Devrek District, Turkey. The investigation revealed a history of landslide issues in the region since the 1940s, as well as observed expansion of settlement towards the toe of the landslide over the past few decades. By integrating different remote sensing technologies, the study may facilitate the development of plans and strategies for preventing and mitigating potential landslide reactivations in the future.
Article
Remote Sensing
Lianhuan Wei, Fang Wang, Cristiano Tolomei, Shanjun Liu, Christian Bignami, Bing Li, Donglin Lv, Elisa Trasatti, Yuan Cui, Guido Ventura, Meng Ao, Stefano Salvi, Shiliu Wang, Xingyu Pan
Summary: This paper adopts Multi-Temporal Interferometric Synthetic Aperture Radar (MT-InSAR) technology to monitor the Line of Sight (LOS) displacement of Fushun West Opencast Coal Mine (FWOCM) and its surrounding areas in northeast China using Sentinel-1 Synthetic Aperture Radar (SAR) images. The study analyzes the spatial-temporal evolution of urban subsidence and the south-slope landslide. Comparison with ground measurements and cross-correlation analysis with monthly precipitation data is conducted to analyze the influence factors of displacements in FWOCM. The results are important for ensuring mine safety production and geological disaster prevention in the investigated mining area.
GEO-SPATIAL INFORMATION SCIENCE
(2023)
Article
Multidisciplinary Sciences
Magdalena Vassileva, Djamil Al-Halbouni, Mahdi Motagh, Thomas R. Walter, Torsten Dahm, Hans-Ulrich Wetzel
Summary: Ground subsidence, whether caused by natural or anthropogenic processes, is a global issue affecting major urban areas worldwide. The case study in Maceio, Brazil, highlights the accelerated sinking rates and the primary association of extensive subsidence with the removal of deep-seated material at the location and depth where salt is mined. This research suggests that destabilization mechanisms in evaporite systems due to human activities can lead to enhanced and complex ground deformation.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Rapti Siriwardane-de Zoysa, Tilo Schoene, Johannes Herbeck, Julia Illigner, Mahmud Haghighi, Hendricus Simarmata, Emma Porio, Alessio Rovere, Anna-Katharina Hornidge
Summary: Drawing on case studies from Jakarta, Metro Manila, and Singapore, this paper explores the slow political action in addressing subsiding land and analyzes the uneven experiences of subsidence across different urban contexts. The paper uses a three-step analysis method to reveal the social-temporal variability of subsidence rates and the fragmented and incongruous coastal governance landscape.
Article
Multidisciplinary Sciences
Sibylle Vey, D. Al-Halbouni, M. Haghshenas Haghighi, F. Alshawaf, J. Vuellers, A. Guentner, G. Dick, M. Ramatschi, P. Teatini, J. Wickert, M. Weber
Summary: Many studies have shown the sensitivity of our environment to manmade changes, particularly the impact on atmospheric and hydrological processes. The effect on Solid Earth processes like subsidence is not as straightforward, but in the Dead Sea region, the climatic forcing is strong and freshwater overuse is massive. Observations over a 3-year period have linked high evaporation and subsequent drop in the Dead Sea lake level with high subsidence rates, revealing a synchronous behavior with atmospheric and hydrological changes with a two-month time lag.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Geological
Jiyuan Hu, Mahdi Motagh, Jiming Guo, Mahmud Haghshenas Haghighi, Tao Li, Fen Qin, Wenhao Wu
Summary: Through multitemporal interferometry analysis, four major subsidence zones in Wuhan, including both soft soil areas and karst terrain, were identified. The decline of shallow groundwater caused by engineering dewatering and industrial water depletion contributes to subsidence in the soft soil areas, while the presence of underground caves and fissures in the karst terrain is the main factor for gradual subsidence and karst collapse. The stage of karst development plays the most important role in influencing karst subsidence, followed by municipal construction, proximity to major rivers, and overlying soil structure.
ENGINEERING GEOLOGY
(2022)
Article
Engineering, Geological
Zhuge Xia, Mahdi Motagh, Tao Li, Sigrid Roessner
Summary: This study investigated the destabilization and reactivation process of an ancient landslide near Aniangzhai village in Danba County, Sichuan Province of Southwest China using satellite remote sensing techniques. The analysis revealed that the toe of the landslide was undercut, leading to erosion from overflow of the landslide dam and water release from a nearby hydropower station. In addition, changes in precipitation were found to be correlated with kinematics of motion in different parts of the landslide.
Article
Oceanography
Lisa-Michele Bott, Tilo Schoene, Julia Illigner, Mahmud Haghshenas Haghighi, Konstantin Gisevius, Boris Braun
Summary: This study highlights the importance of land subsidence as a major coastal threat, compared to eustatic sea level rise, in urban coastal areas. By utilizing a combination of natural and social science approaches, the research analyzes regional and relative sea level rise in Jakarta and Semarang Bay, emphasizing the need to address subsidence effects in coastal hazard research and disaster risk reduction strategies.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Wei Tang, Xiangjun Zhao, Mahdi Motagh, Gang Bi, Jing Li, Mingjie Chen, Hua Chen, Mingsheng Liao
Summary: The impacts of groundwater management measures and inter-basin water transfer project on the aquifer system in Taiyuan basin, China, have been studied using integrated analysis. The research reveals that these measures have led to the alleviation of land subsidence, reduction in surface displacement, and significant seasonal displacement related to agricultural pumping irrigation.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Multidisciplinary Sciences
Shagun Garg, Mahdi Motagh, J. Indu, Vamshi Karanam
Summary: This study investigates the effects of declining groundwater levels on land surface elevations in Delhi NCR, India. It identifies two subsidence areas with rates exceeding 11 cm/year and 3 cm/year, as well as one uplift area. It highlights a high-risk zone of ground movement covering approximately 100 square kilometers that requires urgent attention. The findings of this study are highly relevant for formulating new groundwater management policies in the region.
SCIENTIFIC REPORTS
(2022)
Article
Environmental Sciences
Mimi Peng, Zhong Lu, Chaoying Zhao, Mahdi Motagh, Lin Bai, Brian D. Conway, Hengyi Chen
Summary: This study utilized InSAR technology to investigate land subsidence in the Willcox Groundwater Basin, and employed independent component analysis to analyze the temporal patterns. Two different deformation features were identified in the basin. By integrating InSAR deformation data with groundwater level data, the response of the aquifer system to hydraulic head change was quantified, and the hydromechanical properties of the aquifer system were characterized.
REMOTE SENSING OF ENVIRONMENT
(2022)
Article
Environmental Sciences
Deying Ma, Mahdi Motagh, Guoxiang Liu, Rui Zhang, Xiaowen Wang, Bo Zhang, Wei Xiang, Bing Yu
Summary: The thaw consolidation of degrading permafrost poses a serious hazard to infrastructure. By integrating interferometric measurements from radar images and volumetric water content data, this study quantifies the spatial variations in active layer thickness in Iqaluit, Canada. The findings provide valuable insights for hazard prevention and infrastructure operation in permafrost regions.
Article
Environmental Sciences
Zohreh Erfani Jazi, Mahdi Motagh, Volker Klemann
Summary: Using InSAR measurements near the Helheim glacier in southeastern Greenland, a maximum cumulative displacement of approximately 6 cm was detected, suggesting a mass loss of 8.33 Gt/year in that area.
Article
Environmental Sciences
Juanjuan Yu, Xiufeng He, Peng Yang, Mahdi Motagh, Jia Xu, Jiacheng Xiong
Summary: In this study, a novel combined framework that integrates UNet++ with a marker-controlled watershed segmentation strategy was developed to extract aquaculture boundaries from fully polarimetric GaoFen-3 SAR imagery. Experimental results showed that the proposed method could effectively handle the adhesion of adjacent objects and unclear boundaries, capturing clear and refined aquaculture boundaries.
Article
Environmental Sciences
Kamila Pawluszek-Filipiak, Andrzej Borkowski, Mahdi Motagh
Summary: This research utilized PSInSAR technology with satellite radar data to verify landslide activity in Malopolskie municipality, generating and validating landslide intensity and damage maps, with a high correlation between PSInSAR results and field observations confirmed.
REMOTE SENSING APPLICATIONS-SOCIETY AND ENVIRONMENT
(2021)
Article
Engineering, Electrical & Electronic
Binayak Ghosh, Mahdi Motagh, Mahmud Haghshenas Haghighi, Magdalena Stefanova Vassileva, Thomas R. Walter, Setareh Maghsudi
Summary: The study utilizes synthetic aperture radar acquisitions to detect ground deformations and volcanic unrest signals, and improves the accuracy and efficiency of real-time detection through unique algorithms. Results demonstrate the practicality and effectiveness of this method on different datasets.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2021)
