Searched for: subject:"InSAR"
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Bekési, Eszter (author), Fokker, Peter A. (author), Martins, Joana E. (author), Limberger, Jon (author), Bonté, Damien (author), van Wees, Jan-Diederik (author)
Surface deformation due to fluid extraction can be detected by satellite-based geodetic sensors, providing important insights on subsurface geomechanical properties. In this study, we use Differential Interferometric Synthetic Aperture Radar (DInSAR) observations to measure ground deformation due to fluid extraction at the Los Humeros Geothermal...
journal article 2019
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Daout, Simon (author), Sudhaus, Henriette (author), Kausch, T. (author), Steinberg, Andreas (author), Dini, Benedetta (author)
Understanding the mechanisms by which earthquake cycles produce folding and accommodate shortening is essential to quantify the seismic potential of active faults and integrate aseismic slip within our understanding of the physical mechanisms of the long-term deformation. However, measuring such small deformation signals in mountainous areas...
journal article 2019
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Ozer, I.E. (author), van Leijen, F.J. (author), Jonkman, Sebastiaan N. (author), Hanssen, R.F. (author)
Levees are critical systems in safeguarding an area against catastrophic flooding events with potential fatalities and economic losses. Current monitoring methods of levees highly rely on expert judgement, resulting in infrequent and subjective assessments of their status. Satellite radar imaging, in particular using interferometry (InSAR),...
journal article 2018
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van der Horst, T. (author), Rutten, M.M. (author), van de Giesen, N.C. (author), Hanssen, R.F. (author)
Inhabitants and ecosystems in delta areas are becoming increasingly vulnerable to the effects of subsidence, caused by anthropogenic activities. Yangon is a city on the periphery of the Irrawaddy delta in Myanmar where little is known about the true extent of this hazard, while its effects can potentially harm millions of its inhabitants. This...
journal article 2018
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Van Natijne, A. L. (author), Lindenbergh, R.C. (author), Hanssen, R.F. (author)
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. Unfortunately the InSAR deformation trends suffer from poor geolocation estimates, limiting the...
journal article 2018
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Chang, L. (author), Dollevoet, R.P.B.J. (author), Hanssen, R.F. (author)
Satellite radar interferometry (InSAR) is an emerging technique to monitor the stability and health of line-infrastructure assets, such as railways, dams, and pipelines. However, InSAR is an opportunistic approach as the location and occurrence of its measurements (coherent scatterers) cannot be guaranteed, and the quality of the InSAR...
journal article 2018
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Yang, M. (author), Yang, Tianliang (author), Zhang, L. (author), Lin, Jinxin (author), Qin, Xiaoqiong (author), Liao, Mingsheng (author)
Large-scale reclamation projects during the past decades have been recognized as one of the driving factors behind land subsidence in coastal areas. However, the pattern of temporal evolution in reclamation settlements has rarely been analyzed. In this work, we study the spatio-temporal evolution pattern of Linggang New City (LNC) in Shanghai...
journal article 2018
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Wang, Haoyu (author), Chang, L. (author), Markine, V.L. (author)
Transition zones in railway tracks are locationswith considerable changes in the rail-supporting structure. Typically, they are located near engineering structures, such as bridges, culverts and tunnels. In such locations, severe differential settlements often occur due to the different material properties and structure behavior. Without...
journal article 2018
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van der Marel, H. (author), van Leijen, F.J. (author), Hanssen, R.F. (author)
Well-identifiable reference benchmarks are important in SAR interferometry to enable linking between different measurement techniques, or to enable datum connection between the local InSAR datum and Terrestrial Reference Systems. As corner reflectors for C-band are rather large, weather sensitive, and difficult to maintain over time frames of...
conference paper 2018
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Bekési, Eszter (author), Esteves Martins, Joana E. (author), Fokker, Peter A. (author), Bonté, Damien (author), Limberger, Jon (author), van Wees, Jan Diederik (author)
We present first results of PS-InSAR (Persistent Scatterer by Synthetic Aperture Radar Interferometry) time-series over the eastern sector of the Trans-Mexican Volcanic Belt including several volcanic systems. The study area covers the Los Humeros and Acoculco geothermal fields. Los Humeros is one of the largest geothermal fields in Mexico...
abstract 2018
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Qin, Xiaoqiong (author), Yang, M. (author), Zhang, L. (author), Yang, Tianliang (author), Liao, Mingsheng (author)
Since the Persistent Scatterer Synthetic Aperture Radar (SAR) Interferometry (PSI) technology allows the detection of ground subsidence with millimeter accuracy, it is becoming one of the most powerful and economical means for health diagnosis of major transportation infrastructures. However, structures of different types may suffer from...
journal article 2017
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Samiei Esfahany, S. (author)
During the last decades, time-series interferometric synthetic aperture radar (InSAR) has emerged as a powerful technique to measure various surface deformation phenomena of the earth. Early generations of time-series InSAR methodologies, i.e. Persistent Scatterer Interferometry (PSI), focused on point targets, which are mainly man-made features...
doctoral thesis 2017
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Mahapatra, P.S. (author), van der Marel, H. (author), van Leijen, F.J. (author), Samiei Esfahany, S. (author), Klees, R. (author), Hanssen, R.F. (author)
Deformation estimates from Interferometric Synthetic<br/>Aperture Radar (InSAR) are relative: they form a ‘free’<br/>network referred to an arbitrary datum, e.g. by assuming a reference<br/>point in the image to be stable. However, some applications<br/>require ‘absolute’ InSAR estimates, i.e. expressed in<br/>a well-defined terrestrial...
journal article 2017
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Samiei Esfahany, S. (author), Esteves Martins, Joana E. (author), van Leijen, F.J. (author), Hanssen, R.F. (author)
In recent years, new algorithms have been proposed to retrieve maximum available information in synthetic aperture radar (SAR) interferometric stacks with focus on distributed scatterers. The key step in these algorithms is to optimally estimate single-master (SM) wrapped phases for each pixel from all possible interferometric combinations,...
journal article 2016
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Mahapatra, P.S. (author)
For the past two decades, interferometric synthetic aperture radar (InSAR) has been used to monitor ground deformation with subcentimetric precision from space. But the applicability of this technique is limited in regions with a low density of naturally-occurring phase-coherent radar targets, e.g. vegetated nonurbanized areas. Third-party end...
doctoral thesis 2015
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Bekaert, D.P.S. (author), Hooper, A. (author), Wright, T.J. (author)
In Guerrero, Mexico, slow-slip events have been observed in a seismic gap, where no earthquakes have occurred since 1911. A rupture of the entire gap today could result in a Mw 8.2–8.4 earthquake. However, it remains unclear how slow-slip events change the stress field in the Guerrero seismic region and what their implications are for...
journal article 2015
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Sousa, J.J. (author), Ruiz, A.M. (author), Hooper, A.J. (author), Hanssen, R.F. (author), Perski, Z. (author), Bastos, L.C. (author), Gil, A.J. (author), Galindo-Zaldivar, J. (author), Sanz de Galdeano, C. (author), Alfaro, P. (author), Garrido, M.S. (author), Armenteros, J.A. (author), Gimenez, E. (author), Aviles, M. (author)
The quantification of low rate active tectonic structures is a major target of geodetic and geological studies to improve the knowledge of seismic hazards. The central Betic Cordillera (southern Spain) is affected by moderately active tectonic structures and seismicity. Part of this seismic activity is produced by several NW-SE normal faults...
journal article 2014
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Kiseleva, E. (author), Mikhailov, V. (author), Smolyaninova, E. (author), Dmitriev, P. (author), Golubev, V. (author), Timoshkina, E. (author), Hooper, A. (author), Samiei-Esfahany, S. (author), Hanssen, R.F. (author)
The landslide activity in the area of Bolshoy Sochi (Big Sochi) situated at the Black Sea coast of the Great Caucasus has been studied using the StaMPS PS-InSAR method. We incorporated three sets of radar images from the satellites with different wavelengths ALOS, Envisat and Terra-SAR-X from both ascending and descending tracks which cover the...
journal article 2014
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Martins, Joana E. (author), Hooper, Andy (author), Ruigrok, E.N. (author), Draganov, D.S. (author), Hanssen, R.F. (author), White, Robert (author), Soosalu, Heidi (author)
Torfajökull is the largest silicic volcanic centre in Iceland lying at the intersection of the rift zone (MidAtlantic Ridge) and the transform zone that connects to Reykjanes peninsula. It erupts infrequently,with only two eruptions in the last 1200 years, the latest of which was over 5 centuries ago. Yet, itsactive tectonic setting, persistent...
abstract 2014
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Auriac, A. (author), Spaans, K.H. (author), Sigmundsson, F. (author), Hooper, A. (author), Schmidt, P. (author), Lund, B. (author)
A broad uplift occurs in Iceland in response to the retreat of ice caps, which began circa 1890. Until now, this deformation signal has been measured primarily using GPS at points some distance away from the ice caps. Here, for the first time we use satellite radar interferometry (interferometric synthetic aperture radar) to constrain uplift of...
journal article 2013
Searched for: subject:"InSAR"
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