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van Natijne, A.L. (author)Landslides are a major geohazard in hilly and mountainous environments. We focus on slow-moving, deep-seated landslides that are characterized by gradual, non-catastrophic deformations of millimeters to decimeters per year and cause extensive economic damage. To assess their potential impact and for the design of mitigation solutions, a detailed...doctoral thesis 2023
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van Zwieten, G.J. (author)A vital component in the management of seismic hazard is the study of past seismic events. Classically, this has been the domain of seismology, which studies the dynamic manifestations of the event to infer properties such as epicenter and moment magnitude. More recently it has become possible to perform similar analyses on the basis of the...doctoral thesis 2023
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Hartman, Illona (author)In the field of structural and geotechnical engineering, a uniform approach to predict and model foundation settlements during the design phase of a high-rise building appears to be missing. In the Netherlands, pile foundations of tower structures underlain by compressible soil layers are challenging to model due to different stiffness and load...master thesis 2023
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Haji-Aghajany, Saeid (author), Amerian, Yazdan (author), Amiri Simkooei, A. (author)This study aims to investigate how changes in meteorological indicators affect groundwater resources, and hence to predict groundwater levels using these indicators, particularly in regions experiencing drought and subsidence. Precipitation, temperature, evapotranspiration and precipitable water vapor (PWV) are important meteorological...journal article 2023
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Brouwers, Raymond (author)Structural health monitoring of buildings is useful for a few reasons. It provides information on the usage and cause of damage to a building. This can result in targeted maintenance or allow for potential improvements.<br/><br/>Traditionally, a building can be monitored by installing sensors during construction or maintenance work. These can be...master thesis 2022
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Reinders, K.J. (author), Giardina, Giorgia (author), Zurfluh, Florian (author), Ryser, Jurg (author), Hanssen, R.F. (author)In the planning stage of new infrastructure or when designing renovation of existing infrastructure, information about existing slope movements or settlements is essential to make informed design decisions. Interferometric<br/>Synthetic Aperture Radar (InSAR) techniques can be of value to identify these risks in an early stage of a project....journal article 2022
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Hu, F. (author), van Leijen, F.J. (author), Chang, L. (author), Wu, Jicang (author), Hanssen, R.F. (author)Synthetic aperture radar (SAR) missions with short repeat times enable opportunities for near real-time deformation monitoring. Traditional multitemporal interferometric SAR (MT-InSAR) is able to monitor long-term and periodic deformation with high precision by time-series analysis. However, as time series lengthen, it is time-consuming to...journal article 2022
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Czikhardt, Richard (author), van der Marel, H. (author), Papco, Juraj (author), Hanssen, R.F. (author)Compact and low-cost radar transponders are an attractive alternative to corner reflectors (CRs) for interferometric synthetic aperture radar (InSAR) deformation monitoring, datum connection, and geodetic data integration. Recently, such transponders have become commercially available for C-band sensors, which poses relevant questions on...journal article 2022
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Macchiarulo, V. (author), Milillo, Pietro (author), Blenkinsopp, Chris E. (author), Giardina, Giorgia (author)Ageing stock and extreme weather events pose a threat to the safety of infrastructure networks. In most countries, funding allocated to infrastructure management is insufficient to perform systematic inspections over large transport networks. As a result, early signs of distress can develop unnoticed, potentially leading to catastrophic...journal article 2022
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Whitworth, Michael R. Z. (author), Giardina, Giorgia (author), Penney, Camilla (author), Di Sarno, Luigi (author), Adams, Keith (author), Kijewski-Correa, Tracy (author), Black, Jacob (author), Foroughnia, Fatemeh (author), Macchiarulo, V. (author)On 14th August 2021, a magnitude 7.2 earthquake struck the Tiburon Peninsula in the Caribbean nation of Haiti, approximately 150 km west of the capital Port-au-Prince. Aftershocks up to moment magnitude 5.7 followed and over 1,000 landslides were triggered. These events led to over 2,000 fatalities, 15,000 injuries and more than 137,000...journal article 2022
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Urgilez Vinueza, A.R. (author), Handwerger, Alexander L. (author), Bakker, M. (author), Bogaard, T.A. (author)Slow-moving landslides move downslope at velocities that range from mm year<sup>−1</sup> to m year<sup>−1</sup>. Such deformations can be measured using satellite-based synthetic aperture radar interferometry (InSAR). We developed a new method to systematically detect and quantify accelerations and decelerations of slowly deforming areas...journal article 2022
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Hu, F. (author), Helfer, K.C. (author), Siebesma, A.P. (author), Hanssen, R.F. (author)Atmospheric delay has a profound impact on synthetic aperture radar (SAR) interferometry, inducing a spatial signal that significantly devaluates interferometric products. While the wide-scale variability of the atmosphere can be adequately modeled with global or regional weather models, it is especially the turbulent and convective part of the...journal article 2022
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Conroy, Philip (author), van Diepen, S.A.N. (author), Van Asselen, Sanneke (author), Erkens, Gilles (author), van Leijen, F.J. (author), Hanssen, R.F. (author)Phase unwrapping, also known as ambiguity resolution, is an underdetermined problem in which assumptions must be made to obtain a result in SAR interferometry (InSAR) time series analysis. This problem is particularly acute for distributed scatterer InSAR, in which noise levels can be so large that they are comparable in magnitude to the...journal article 2022
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Simons, W.J.F. (author), Broerse, D.B.T. (author), Kleptsova, O.S. (author), Nijholt, N. (author), Pietrzak, J.D. (author), Naeije, M.C. (author), Lhermitte, S.L.M. (author), Visser, P.N.A.M. (author), Riva, R.E.M. (author)A devastating tsunami struck Palu Bay in the wake of the 28 September 2018 M<sub>w</sub> = 7.5 Palu earthquake (Sulawesi, Indonesia). With a predominantly strike-slip mechanism, the question remains whether this unexpected tsunami was generated by the earthquake itself, or rather by earthquake-induced landslides. In this study we examine the...journal article 2022
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van Natijne, A.L. (author), Bogaard, T.A. (author), van Leijen, F.J. (author), Hanssen, R.F. (author), Lindenbergh, R.C. (author)Landslides are a major geohazard in hilly and mountainous environments. In-situ inspection of downslope motion is costly, sometimes dangerous and, requires prior knowledge of the existence of a landslide. Remote sensing from space is a way to detect and characterize landslides systematically at large scale. Interferometric Synthetic Aperture...journal article 2022
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ZOUROS, JOHN (author)Interferometric Synthetic Aperture Radar (InSAR) and Global Navigation Satellite Systems (GNSS) are widely used to monitor the dynamic behavior of the Earth. InSAR is a geodetic technique that estimates millimeter-level relative displacement time-series in an opportunistic network of a multitude of coherent points on the Earth’s surface, in a...master thesis 2021
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Brouwer, Wietske (author)Satellite radar interferometry (InSAR) is a powerful technique for monitoring deformation phenomena. While deformation phenomena occur in a three-dimensional (3D) world, one of the limitations of the InSAR phase observations is that they are only sensitive to the projection of the 3D displacement vector onto the radar line-of-sight (LoS)...master thesis 2021
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Felius, Max (author)Undiscovered underground cavities might exist in the subsurface. A catastrophic ground failure event follows when such a cavity starts to migrate upwards and finally intersects with the surface, resulting in a sinkhole. Catastrophic collapse events are usually preceded by precursory subsidence. An upward migrating cavity causes the development...master thesis 2021
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Kaźmierczak, Adrianna (author)A satellite remote sensing technique, Interferometric Synthetic Aperture Radar (InSAR), is able to provide surface displacement information on a millimeter level. In this study, data from the TerraSAR-X satellite collected in the years 2009-2018 over the area of Amsterdam is used. Even though radar data is a subject to multi-step processing,...master thesis 2021
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- Bach, Alicia (author) master thesis 2021