Results 31 to 40 of about 670 (183)

Monitoring Land Subsidence Using PS-InSAR Technique in Rawalpindi and Islamabad, Pakistan

Remote Sensing, 2022
Land subsidence is a major concern in vastly growing metropolitans worldwide. The most serious risks in this scenario are linked to groundwater extraction and urban development. Pakistan’s fourth-largest city, Rawalpindi, and its twin Islamabad, located at the northern edge of the Potwar Plateau, are witnessing extensive urban expansion.
Junaid Khan, Xingwei Ren, Muhammad Afaq Hussain, M. Qasim Jan   +3 more
openaire   +2 more sources

Multi-temporal InSAR analysis for assessment of earthquake precursory deformation

Geodesy and Geodynamics
Ground deformation is a key parameter in interpreting precursory stress and strain patterns and provides valuable information for seismic studies.
Gopal Sharma, Karan Nayak, Prakash Biswakarma, Rekha Bharali Gogoi, M.Somorjit Singh, K.K. Sarma, S.P. Aggarwal   +6 more
doaj   +1 more source

Correcting the Location Error of Persistent Scatterers in an Urban Area Based on Adaptive Building Contours Matching: A Case Study of Changsha

Remote Sensing
Persistent Scatterer InSAR (PS-InSAR) technology enables the monitoring of displacement in millimeters. However, without the use of external parameter correction, radar scatterers exhibit poor geopositioning precision in meters, limiting the correlation ...
Miaowen Hu, Bing Xu, Jia Wei, Bangwei Zuo, Yunce Su, Yirui Zeng   +5 more
doaj   +1 more source

MASSIVE LINKING OF PS-INSAR DEFORMATIONS TO A NATIONAL AIRBORNE LASER POINT CLOUD [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Abstract. Build on soft soil, close to sea level the Netherlands is at high risk for the effects of subsidence and deformation. Interferometric Synthetic Aperture Radar (InSAR) is successfully used to monitor the deformation trends at millimetre level.
A. L. van Natijne, R. C. Lindenbergh, R. F. Hanssen   +2 more
openaire   +5 more sources

Modeled Subsidence of Permafrost Terrain 2025–2050: North‐Central Alaska

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT A large fraction of the Alaska terrain is underlain by regolith that contains excess ice (ice that in volume exceeds the natural pore space). Possible loss of excess ice would lead to ground subsidence, which in turn would disturb and destabilize the ground surface.
Jaakko Putkonen, Hayden Patterson, Robert Chance, Mary Soaper, Anai Caparó Bellido, Aymane Ahajjam, Andrew Wilcox, Sheridan Parker, Timothy Pasch   +8 more
wiley   +1 more source

Quantifying the Surface Deformation of Pingos on the Alaskan North Slope Using Interferometric Synthetic Aperture Radar (InSAR)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT Pingos are large mounds with cores formed of intrusive ice that form in periglacial landscapes. These ice structures can form in regions of discontinuous permafrost, commonly as hydraulic or open‐system pingos, or in locations of continuous permafrost, commonly as hydrostatic or closed‐system pingos.
Venezia M. Follingstad, Roger J. Michaelides, Matthew R. Siegfried, Tyler M. Meng, John Bradford, Kynan H. G. Hughson, Alexia R. Kubas, Andrew Mullen, Enrica Quartini, Austin Routt, Hanna G. Sizemore, Andrei Swidinsky, Britney E. Schmidt   +12 more
wiley   +1 more source

GaoFen-3 Mission for InSAR Time Series Analysis: A Quantitative Evaluation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
GaoFen-3 (GF-3) is China's first civilian high-resolution synthetic aperture radar (SAR) satellite mission. Since its launch in 2016, GF-3 has achieved remarkable success in various SAR application fields.
Yuxiao Qin, Qingjun Zhang, Wen Hong, Bing Han, Fangfang Li, Jiaxin Shen, Ke Wang, Mengge Wang   +7 more
doaj   +1 more source

Towards a PS-InSAR Based Prediction Model for Building Collapse: Spatiotemporal Patterns of Vertical Surface Motion in Collapsed Building Areas—Case Study of Alexandria, Egypt

Remote Sensing, 2020
Buildings are vulnerable to collapse incidents. We adopt a workflow to detect unusual vertical surface motions before building collapses based on PS-InSAR time series analysis and spatiotemporal data mining techniques. Sentinel-1 ascending and descending
Bahaa Mohamadi, Timo Balz, Ali Younes
doaj   +1 more source

Double Trouble: Two Active Magma Reservoirs Identified at Masaya Volcano, Nicaragua, Using Satellite Geodesy

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract We analyze and model ground deformation at Masaya volcano, Nicaragua, using Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) time series spanning January 2018–February 2024. Time series show the Masaya Central Reservoir (MCR) experienced ∼3 cm of line of sight (LOS) displacement away from the satellite north of the Santiago crater ...
E. Johnson, Y. C. Kim, C. Wauthier
wiley   +1 more source

Mining Subsidence Monitoring With Modified Time-Series SAR Interferometry Method Based on the Multi-Level Processing Strategy

IEEE Access, 2021
The supply of coal is related to the stability of social development in China. Coal mining faces are generally located under farmland and wasteland to avoid destroying the livelihood and property of residents, which seriously affects the selection of ...
Qian He, Yonghong Zhang, Hongan Wu, Yong Luo   +3 more
doaj   +1 more source