Article
Engineering, Geological
Zhao Long, Li Yumei, Luo Yong, Liu Jiurong, Cui Wenjun, Zhang Youquan, Lei Kunchao, Tian Fang, Han Zhantao, Liu He, Sha Te, Kong Xiangru, Qi Minghuan, Wang Xinhui, Tian Miaozhuang, Zhang Jie, Zhang Shuangcheng, Li Jin
Summary: The Songzhuang ground failure, discovered in the eastern part of the Beijing Plain, is characterized by a main fissure and numerous secondary fissures, tensile deformation, and limited extension depths in the profile. It formed after an earthquake and was enlarged due to groundwater pumping, with a pre-existing fault determining its initial location.
ENGINEERING GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Enrique Antonio Fernandez-Torres, Enrique Cabral-Cano, David Alberto Novelo-Casanova, Dario Solano-Rojas, Emre Havazli, Luis Salazar-Tlaczani
Summary: This article investigates the socioeconomic risk of land subsidence in Mexico City, and presents a risk map based on data from land subsidence characterization and socio-economic vulnerability assessment. The study reveals a spatial correlation between high subsidence rates and vulnerability zones. Approximately 9% of urbanized areas, where 12.6% of the city's population resides, are exposed to high and very high land subsidence socioeconomic risk.
Article
Environmental Sciences
Yonghong Zhang, Hongan Wu, Mingju Li, Yonghui Kang, Zhong Lu
Summary: This research investigates ground subsidence and causes over the entire province of Jiangsu, China using time-series InSAR, achieving accurate mapping results and identifying main factors contributing to subsidence. The study highlights the capability of InSAR in mapping ground deformation over wide areas and the potential of deriving valuable knowledge from the results.
Article
Environmental Sciences
Pascal Castellazzi, Wolfgang Schmid, Guobin Fu
Summary: Unsustainable groundwater extraction can result in various negative impacts including aquifer compaction, damages to infrastructure, changes in water accumulation, and reduced water storage capacity. This study focuses on the heavily exploited aquifers in the New South Wales Riverina region of Australia and uses satellite radar imagery to detect ground deformation caused by groundwater extraction. Four areas with potential for groundwater-induced deformations are identified, and the study provides valuable information for water managers to mitigate the risks associated with groundwater-related ground deformation.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Loubna Hamdi, Nabil Defaflia, Abdelaziz Merghadi, Chamssedine Fehdi, Ali P. Yunus, Jie Dou, Quoc Bao Pham, Hazem Ghassan Abdo, Hussein Almohamad, Motrih Al-Mutiry
Summary: This study uses GPS data and PS-InSAR techniques to monitor land subsidence in the Cheria basin in Algeria. The results show significant changes in land surface, with a maximum subsidence of 500 mm over 6 years. These findings can be used to identify vulnerable areas and evaluate surface deformation for potential damage reduction in the future.
Article
Geosciences, Multidisciplinary
Shih-Yuan Lin
Summary: Widespread land subsidence in urban areas is a growing problem worldwide, primarily caused by climate change, urbanization, and unbalanced groundwater extraction. This study focuses on Taipei City, which has faced challenges of ground subsidence. Through the analysis of Sentinel-1 remote sensing data, it is found that certain areas in the city experience significant surface subsidence, particularly in former river and lake beds. The combination of precipitation and groundwater level data reveals spatio-temporal heterogeneity of deformation. The study demonstrates the feasibility of using remote sensing data for widespread monitoring of subsidence hazards in urban planning and development.
GEOMATICS NATURAL HAZARDS & RISK
(2022)
Article
Environmental Sciences
Kun Yang, Zhenqi Hu, Yusheng Liang, Yaokun Fu, Dongzhu Yuan, Jiaxin Guo, Gensheng Li, Yong Li
Summary: Widespread ground fissures caused by coal mining subsidence are a main cause of ecological destruction in mining areas. In this study, a method to automatically extract ground fissures from UAV images was developed and tested in the Ningtiaota Coal Mine, China. The results indicated that the proposed method can effectively detect and extract ground fissures, which makes it a valuable tool for ecological restoration in mining areas.
Article
Engineering, Geological
Yuri D. J. Costa, Jorge G. Zornberg, Carina M. L. Costa
Summary: In this study, experimental results were generated from physical models involving a buried PVC pipe subjected to ground subsidence, highlighting significant bending in the pipe at the subsidence zone and radial deflections along its length. The redistribution of earth pressures surrounding the pipe due to ground subsidence was observed, with an increase in vertical soil pressures beneath the pipe captured. The response of the PVC pipe to localized ground subsidence was found to improve with increasing backfill density and decreasing soil confinement.
Article
Engineering, Electrical & Electronic
Yueze Zheng, Junhuan Peng, Xue Chen, Cheng Huang, Pinxiang Chen, Sen Li, Yuhan Su
Summary: Due to overexploitation of water resources, ground subsidence has become a serious problem in Beijing, China's capital. This article investigates the relationship between ground subsidence, changes in groundwater depth, and water supply in a long-term perspective. The study uses multisource synthetic aperture radar (SAR) data and the interferometric SAR (InSAR) technique, combined with leveling and ground subsidence data from 2003 to 2020. The results show that ground subsidence in the plain area has steadily increased, but slowed down since 2016, thanks to the completion of the South-to-North Water Diversion Project (SNWDP) in 2008 and 2015, which reduced groundwater exploitation and increased water recycling.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Geochemistry & Geophysics
E. Chaussard, E. Havazli, H. Fattahi, E. Cabral-Cano, D. Solano-Rojas
Summary: Subsidence rates in Mexico City have been relatively constant since 1950, reaching up to 50 cm/year. There is no direct relationship between groundwater level fluctuations and pumping rates with subsidence rates, but a strong positive linear relationship exists between subsidence rates and the thickness of the upper aquitard. It is forecasted that total compaction of the upper aquitard may take around 150 years, leading to potential additional subsidence up to 30 m.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2021)
Article
Geosciences, Multidisciplinary
Yaokun Fu, Yongzheng Wu, Xiwen Yin, Yanjun Zhang
Summary: This study proposes a method to extract and analyze ground fissures in the loess gully region using remote sensing images and field survey data. The research reveals the spatial-temporal evolution mechanism of ground fissures and provides technical support for geological disaster monitoring and land ecological restoration in mining areas.
FRONTIERS IN EARTH SCIENCE
(2023)
Article
Remote Sensing
Ruya Xiao, Chen Yu, Zhenhong Li, Mi Jiang, Xiufeng He
Summary: Earth observation technologies have potential in investigating and monitoring geohazards. This study proposes an enhanced InSAR stacking method integrated with atmospheric correction to improve the accuracy of deformation estimation by mitigating the influence of atmospheric turbulence and stratification.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2022)
Article
Environmental Sciences
Haonan Jiang, Timo Balz, Jianan Li, Vishal Mishra
Summary: This article describes a short-term rapid subsidence event in the Bi Guiyuan community in Balitai Town, Tianjin City, and the use of InSAR technology to monitor the subsidence. Through the integration of findings from an InSAR analysis and geological studies, it is speculated that the event is related to the extraction of geothermal resources.
Article
Environmental Sciences
Zoran Gojkovic, Milan Kilibarda, Ljiljana Brajovic, Milos Marjanovic, Aleksandar Milutinovic, Aleksandar Ganic
Summary: This paper analyzes time series deformation estimated from Sentinel-1 satellite images to monitor subsidence rates caused by open pit coal mining activities. The study compares the results with geodetic leveling and neotectonic uplift trends, demonstrating the effectiveness of the approach for deformation monitoring and geohazard monitoring.
Article
Engineering, Civil
Behshid Khodaei, Hossein Hashemi, Seyed Amir Naghibi
Summary: Land subsidence is a growing human-induced disaster that causes damage to structures and reduces aquifer water storage capacity. The lack of continuity in interferometric synthetic aperture radar (InSAR) data due to vegetation decorrelation, coverage alterations, and rough topography can be resolved using artificial intelligence. Boosted regression trees and extreme gradient boosting algorithms were successfully used to provide a full coverage map of groundwater-induced land subsidence in a plain area.
JOURNAL OF HYDROLOGY
(2022)
Article
Geochemistry & Geophysics
D. Smittarello, N. d'Oreye, M. Jaspard, D. Derauw, S. Samsonov
Summary: The ever-increasing amount of Synthetic Aperture Radar (SAR) data motivates the development of automatic processing chains to fully exploit the opportunities offered by these large databases. This paper presents a methodological improvement for InSAR pair selection and provides a toolbox for automatic SAR data downloading, interferometric pair selection, and processing. Compared to traditional methods, this new tool reduces computation time while producing similar velocity maps.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2022)
Article
Geosciences, Multidisciplinary
Xu Zhang, Wanpeng Feng, Hailin Du, Sergey Samsonov, Lei Yi
Summary: Using seismic and geodetic data, the detailed rupture characteristics of the 2021 M-w 7.4 Maduo earthquake were investigated. The results revealed that this earthquake was a supershear event, rupturing bilaterally along a 170 km fault segment. Furthermore, it was found that supershear earthquakes with simpler fault geometries have significantly smaller radiated energies.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Environmental Sciences
Sergey Samsonov
Summary: The study utilizes SAR data from European Sentinel-1 satellites to monitor glacier dynamics, presenting a fully-automated processing system for glacier flow analysis. By investigating Muldrow Glacier in Denali National Park, the research observes an increase in glacier flow velocity and a glacier surge phenomenon during the October 2014-November 2021 period.
Article
Geography, Physical
Brittany Main, Luke Copland, Braden Smeda, Will Kochtitzky, Sergey Samsonov, Jonathan Dudley, Mark Skidmore, Christine Dow, Wesley Van Wychen, Dorota Medrzycka, Eric Higgs, Laurent Mingo
Summary: This study examines the relationship between proglacial lakes and glacier dynamics using a long-term record of observations at the terminus of Kaskawulsh Glacier in Canada. The results show that the retreat of the glacier terminus and the increase in proglacial lake area are closely related. The rapid drainage of the lake in 2016 resulted in a significant decrease in glacier velocities, with a reduction of 48% within 3 km of the terminus.
JOURNAL OF GLACIOLOGY
(2023)
Article
Environmental Sciences
Giuseppe Pezzo, Mimmo Palano, Lisa Beccaro, Cristiano Tolomei, Matteo Albano, Simone Atzori, Claudio Chiarabba
Summary: We examined the deformation patterns of Mt. Etna caused by volcanic and seismic activities from January 2015 to March 2021 using GNSS and InSAR observations. The most significant pattern observed was the rapid seaward motion of the eastern flank. We also discovered that occasional flank motion reversal indicates short-term contraction of the volcano, which can overcome gravity-controlled sliding of the eastern flank. Conversely, fast dike intrusion accelerates flank sliding and can lead to sudden collapses, fault creep, and seismic release.
Article
Geosciences, Multidisciplinary
Ryan Schultz, Jeong-Ung Woo, Karissa Pepin, William L. Ellsworth, Howard Zebkar, Paul Segall, Yu Jeffrey Gu, Sergey Samsonov
Summary: Earthquakes induced by human activities can hinder underground resource development and result in significant economic and human losses. A recent M-L 5.6 (M-W 5.1) event near Peace River, Alberta, occurred in an area where in situ bitumen recovery is taking place. Ground deformation of 3.4 cm was caused by reverse fault slip, possibly linked to Peace River Arch faulting. These earthquakes are located in the shallow basement and near significant wastewater injection into Paleozoic strata. There is a statistical relationship between earthquakes and injection operations, with the events likely being related to in situ bitumen development, primarily due to increased pore pressure from wastewater disposal and smaller poroelastic contributions from bitumen recovery. The assessment of this induced earthquake is likely to have implications for future energy development, management, and regulation, including carbon capture and blue hydrogen.
GEOPHYSICAL RESEARCH LETTERS
(2023)
Article
Geography
Christopher Abis, Francesca Dajma, Andrea Di Capua, Joan Marti Molist, Stavros Meletlidis, Gianluca Norini, Claudia Principe, Gianluca Groppelli
Summary: The geological survey in El Hierro aimed to produce a new Geological Map at 1:12,500 scale for the Southern Rift. The study mapped almost 70 km(2) and provided a detailed understanding of the stratigraphy and volcano-tectonic reconstruction of the area. The map, which includes lava flows fields, volcanic edifices, and volcano-tectonic structures, is crucial for studying the geological evolution and assessing volcanic hazards of the Island.
Article
Geosciences, Multidisciplinary
Carlo Alberto Brunori, Federica Murgia
Summary: Since the early 1990s, the European and Italian space agencies have been distributing a large amount of satellite-recorded SAR data, benefiting the research community and private industries. The use of advanced cloud computing services has enabled the generation of deformation time series using multi-temporal SAR interferometry techniques. In this study, 24 years of SAR data were used to analyze land subsidence in Central Italy caused by water pumping from a deep aquifer. The results revealed significant ground deformation controlled by underlying fault activity.
Article
Remote Sensing
Sergey V. Samsonov, Wanpeng Feng
Summary: This article introduces a fully automated processing system developed by the Canada Center for Remote Sensing, which measures long-term ground deformation rates in North America and Eurasia using the DInSAR processing technique. Several examples are provided to demonstrate the performance of the system, including previously unknown deformation processes observed in different regions.
CANADIAN JOURNAL OF REMOTE SENSING
(2023)
Article
Energy & Fuels
Erika Barison, Flavio Poletto, Gualtiero Boehm, Biancamaria Farina, Gerardo Carrasco-Nunez, Gianluca Norini, Guido Giordano, Giorgia Pinna
Summary: The Los Humeros volcanic complex in Mexico is being investigated as a potential site for a super-hot geothermal system due to its high temperature. The GEMex project aimed to characterize the geological and geophysical aspects of the area to assess its feasibility. By analyzing seismic data and combining it with borehole information, the study provides insights into the subsurface structure and fault systems of the caldera, offering valuable information for understanding volcanic collapses and geothermal fields.
Article
Geosciences, Multidisciplinary
Lisa Beccaro, Matteo Albano, Cristiano Tolomei, Claudia Spinetti, Giuseppe Pezzo, Mimmo Palano, Claudio Chiarabba
Summary: This study investigates the post-emplacement dynamics of lava flows at Mount Etna volcano using optical and radar satellite data. The results suggest that lava cooling and contraction, as well as viscous compaction of the substrate, play a major role in lava flow dynamics. Downslope sliding is also important for recent lava flows in high slope areas.
FRONTIERS IN EARTH SCIENCE
(2023)
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
Environmental Sciences
Hannes Vasyura-Bathke, Jan Dettmer, Katherine Biegel, Rebecca O. Salvage, David Eaton, Nicolas Ackerley, Sergey Samsonov, Torsten Dahm
Summary: A joint analysis of InSAR and seismic data reveals that long-term saltwater disposal in western Canada triggers resurgent earthquakes by reactivating a complex fault system. The mainshock of the earthquake sequence occurred at a depth of about 5 km and propagated towards the injection source, stopping at a depth of about 2 km. The reactivated faults are part of a regional, basement-rooted graben system and appear to be truncated by a fault that is misoriented for slip in the present-day stress regime.
COMMUNICATIONS EARTH & ENVIRONMENT
(2023)
Article
Engineering, Electrical & Electronic
Marco Polcari, Emanuele Ferrentino, Christian Bignami, Sven Borgstrom, Rosa Nappi, Valeria Siniscalchi
Summary: In this article, several change detection techniques based on satellite SAR data have been evaluated for detecting landslides and mudflows on Ischia Island, Italy. The results show that both single-polarimetric and dual-polarimetric techniques are effective, with the dual-polarimetric techniques outperforming the single-polarimetric ones. Detecting and mapping these phenomena are important for evaluating the affected area and supporting first aid and post-crisis management.
IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
(2023)
Article
Remote Sensing
Sergey Samsonov, Andree Blais-Stevens
Summary: Pipelines are crucial for transportation infrastructure as they provide a safe and efficient means of transporting oil and gas. Landslide hazards to pipelines can be reduced by using remote sensing techniques, such as radar interferometry, to detect ground deformation. This study shows that readily available Sentinel-1 data can produce high-quality deformation maps capable of detecting slow-moving landslides.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2023)
