Application of Differential SAR Interferometry in Mining Subsidence Monitoring

2013 ◽  
Vol 864-867 ◽  
pp. 2735-2738
Author(s):  
Wen Hai Xia ◽  
Yuan Yuan Li
Keyword(s):  
High Spatial Resolution ◽  
Mining Subsidence ◽  
Sar Interferometry ◽  
Sar Images ◽  
Synthetic Aperture Radar Interferometry ◽  
Persistent Scatterer ◽  
Technical Issues ◽  
Subsidence Monitoring ◽  
Differential Sar Interferometry ◽  
Selection Of

Differential synthetic aperture radar Interferometry has been widely applied to monitor mining subsidence for its high spatial resolution, competent accuracy and wide coverage. In this paper, we introduce the principles of InSAR, discuss several key technical issues in mining subsidence monitoring, including selection of SAR images, advanced algorithms for phase unwrapping and Persistent Scatterer InSAR technique.

Hybrid conventional and Persistent Scatterer SAR interferometry for land subsidence monitoring in the Tehran Basin, Iran

2013 ◽  
Vol 79 ◽  
pp. 157-170 ◽  
Author(s):  
Maryam Dehghani ◽  
Mohammad Javad Valadan Zoej ◽  
Andrew Hooper ◽  
Ramon F. Hanssen ◽  
Iman Entezam ◽  
...  
Keyword(s):  
Land Subsidence ◽  
Sar Interferometry ◽  
Persistent Scatterer ◽  
Subsidence Monitoring

scholarly journals Analysis of the 1993-95 Bering Glacier (Alaska) surge using differential SAR interferometry

1998 ◽  
Vol 44 (148) ◽  
pp. 532-546 ◽  
Author(s):  
Dennis R. Fatland ◽  
Craig S. Lingle
Keyword(s):  
Vector Fields ◽  
Sar Interferometry ◽  
Surface Velocity ◽  
Moderate Degree ◽  
Sar Images ◽  
Main Trunk ◽  
Bering Glacier ◽  
Two Phases ◽  
Differential Sar Interferometry ◽  
Spaceborne Radar

AbstractDifferential spaceborne radar interferometry observations of West Bagley Icefield are used to measure surface velocity and topography. Bagley Icefield is the accumulation area fur Bering Glacier which surged in two phases from spring 1993 through summer 1905. The observations presented are based on data collected during the winter of 1992, prior to the surge, and during winter 1994 while the surge was in full progress. Both observation intervals correspond to 3 day repeat orbit phases of the ERS-I C-band SAR. This paper gives an overview of the algorithms used to derive surface-velocity vector fields and topography for valley glaciers from SAR images. The resulting high-resolution velocity data clearly show West Bagley Icefield accelerating from its quiescent pre-surge velocity by a factor of 2.7 in response to the Bering Glacier surge. Persistence of lnterfero-metric phase coherence and the relatively moderate degree of acceleration on the western arm of Bagley Icefield suggest that the velocity increase may have been caused by increased longitudinal stress gradients resulting from coupling to the surging main trunk of Bering Glacier.

scholarly journals Offset tracking procedure applied to high resolution SAR data on Viedma Glacier, Patagonian Andes, Argentina

2013 ◽  
Vol 35 ◽  
pp. 7-13 ◽  
Author(s):  
N. Riveros ◽  
L. Euillades ◽  
P. Euillades ◽  
S. Moreiras ◽  
S. Balbarani
Keyword(s):  
High Resolution ◽  
Large Study ◽  
Sar Interferometry ◽  
Santa Cruz ◽  
Sar Images ◽  
Ice Flow ◽  
Displacement Maps ◽  
Patagonian Andes ◽  
Offset Tracking ◽  
Differential Sar Interferometry

Abstract. Main aim of this work is to explore the suitability of high resolution SAR images for measuring ice flow velocity within glaciers. Available techniques for this purpose are Differential SAR Interferometry (DInSAR) and Offset Tracking. The former, although theoretically much more precise, is frequently limited by coherence loss (or lacking of coherence) in glacier environment. The latter constitutes an alternative that works well when displacements are large. Study area is the Viedma Glacier (Santa Cruz, Argentina), one of the largest uncovered ice bodies in the South Patagonian Ice (SPI). High resolution COSMO-SkyMed (CSK) acquisitions were processed by estimating range and azimuth offset fields. Useful results, consisting in displacement maps showing areas with different fast-flowing units, were obtained by Offset Tracking processing.

scholarly journals Demonstration of Time-Series InSAR Processing in Beijing Using a Small Stack of Gaofen-3 Differential Interferograms

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Jili Wang ◽  
Weidong Yu ◽  
Yunkai Deng ◽  
Robert Wang ◽  
Yingjie Wang ◽  
...  
Keyword(s):  
Time Series ◽  
Land Subsidence ◽  
Deformation Rate ◽  
Sar Interferometry ◽  
Persistent Scatterer Interferometry ◽  
Sar Images ◽  
Sensing Applications ◽  
Persistent Scatterer ◽  
Value Decomposition ◽  
Orbit Errors

More and more synthetic aperture radar (SAR) satellites in orbit provide abundant data for remote sensing applications. In August 2016, China launched a new Earth observation SAR satellite, Gaofen-3 (GF-3). In this paper, we utilize a small stack of GF-3 differential interferograms to map land subsidence in Beijing (China) using the time-series SAR interferometry (InSAR) technique. The small stack of differential interferograms is generated with 5 GF-3 SAR images from March 2017 to January 2018. Orbit errors are carefully addressed and removed during differential InSAR (DInSAR) processing. Truncated singular-value decomposition (TSVD) is applied to strengthen the robustness of deformation rate estimation. To validate the results of GF-3 data, an additional deformation measurement using 26 Sentinel-1B images from March 2017 to February 2018 is carried out using the persistent scatterer interferometry (PSI) technique. By implementing a cross-comparison, we find that the retrieved results from GF-3 images and Sentinel-1 images are spatially consistent. The standard deviation of vertical deformation rate differences between two data stacks is 11.24 mm/y in the study area. The results shown in this paper demonstrate the reasonable potential of GF-3 SAR images to monitor land subsidence.

scholarly journals Ground subsidence geo-hazards induced by rapid urbanization: implications from InSAR observation and geological analysis

2012 ◽  
Vol 12 (4) ◽  
pp. 935-942 ◽  
Author(s):  
F. Chen ◽  
H. Lin ◽  
Y. Zhang ◽  
Z. Lu
Keyword(s):  
City Planning ◽  
Anthropogenic Activities ◽  
River System ◽  
Ground Subsidence ◽  
Pearl River Delta Region ◽  
Rapid Urbanization ◽  
Synthetic Aperture Radar Interferometry ◽  
Surface Displacements ◽  
Persistent Scatterer ◽  
Subsidence Monitoring

Abstract. Due to the convenient transportation and construction, cities are prone to be situated in areas with flat terrain and unstable sediments, resulting in the concurrence of ground subsidence and urbanization. Here the interaction between geology, anthropogenic processes and ground subsidence geo-hazards were investigated in the Greater Pearl River Delta region of China. Geological evidences and 2006–2010 persistent scatterer data indicate that anthropogenic activities are dominant, although the distribution of river system and Quaternary sediments are also highly related to significant displacements (primarily at a rate of −15 to 15 mm a−1). The surface displacements derived by synthetic aperture radar interferometry suggest that the urbanization rhythm has to be routinely monitored. Considering analogous urbanization modes, particularly in developing countries, ground subsidence monitoring together with the analysis of its driving force are critical for geo-hazards early-warning, city planning as well as sustainable urbanization.

scholarly journals Exploitation of the full potential of PSI data for subsidence monitoring

2015 ◽  
Vol 372 ◽  
pp. 311-314 ◽  
Author(s):  
M. Crosetto ◽  
N. Devanthéry ◽  
M. Cuevas-González ◽  
O. Monserrat ◽  
B. Crippa
Keyword(s):  
Remote Sensing ◽  
Time Series ◽  
Full Potential ◽  
Persistent Scatterer Interferometry ◽  
Sar Images ◽  
Remote Sensing Technique ◽  
Persistent Scatterer ◽  
Land Deformation ◽  
Interferometric Sar ◽  
Subsidence Monitoring

Abstract. Persistent Scatterer Interferometry (PSI) is a remote sensing technique used to measure and monitor land deformation from a stack of interferometric SAR images. The main products that can be derived using the PSI technique are the deformation maps and the time series of deformation. In this paper, an approach to apply the PSI technique to a stack of Sentinel-1 images is described. Moreover, the problems encountered during the processing are detailed and an explanation of how they were dealt with is provided. Finally, Sentinel-1 deformation maps and time series obtained over the metropolitan area of Mexico DF are shown.

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