Searched for: author%3A%22Broerse%252C%255C+D.B.T.%22
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Han, Shin-Chan (author), Sauber, Jeanne (author), Broerse, D.B.T. (author), Pollitz, Fred (author), Okal, Emile (author), Jeon, Taehwan (author), Seo, Ki Weon (author), Stanaway, Richard (author)
Earthquakes involve mass redistribution within the solid Earth and the ocean, and as a result, perturb the Earth's gravitational field. For most of the shallow (&lt;60 km) earthquakes with M<sub>w</sub> &gt; 8.0, the GRACE satellite gravity measurements suggest considerable volumetric disturbance of rocks. At a spatial scale of hundreds of km...
journal article 2024
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Broerse, D.B.T. (author), D'Acquisto, Mario (author), Govers, Rob (author), Marsman, C.P. (author), Amiri Simkooei, A. (author)
Before geodetically derived strain and rotation rates can be robustly compared to geological or seismological observations, we need reliable strain rate uncertainties. Various methods exist to compute strain rates from GNSS-derived interseismic velocities, but a realistic representation of interpolation uncertainties has remained a challenge....
abstract 2023
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Porkoláb, Kristóf (author), Broerse, D.B.T. (author), Kenyeres, Ambrus (author), Békési, Eszter (author), Tóth, Sándor (author), Magyar, B. (author), Wesztergom, Viktor (author)
The Pannonian basin is an extensional back-arc basin that has undergone neotectonic inversion and is currently shortening. The understanding and quantification of present-day deformation processes during this inversion are still incomplete. To this end, we investigate the active deformation of the Circum-Pannonian region via the interpolation of...
journal article 2023
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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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Simon, K.M. (author), Riva, R.E.M. (author), Broerse, D.B.T. (author)
In this study, we examine the effect of transient mantle creep on the prediction of glacial isostatic adjustment (GIA) signals. Specifically, we compare predictions of relative sea level (RSL) change from GIA from a set of Earth models in which transient creep parameters are varied in a simple Burgers model to a reference case with a Maxwell...
journal article 2022
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Broerse, D.B.T. (author), Krstekanić, Nemanja (author), Kasbergen, C. (author), Willingshofer, Ernst (author)
Particle image velocimetry (PIV), a method based on image cross-correlation, is widely used for obtaining velocity fields from time-series of images of deforming objects. Rather than instantaneous velocities, we are interested in reconstructing cumulative deformation, and use PIV-derived incremental displacements for this purpose. Our focus...
journal article 2021
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Willen, M.O. (author), Broerse, D.B.T. (author), Groh, A. (author), Wouters, B. (author), Kuipers Munneke, P. (author), Horwath, M. (author), van den Broeke, M.R. (author), Schröder, L. (author)
Satellite gravimetry and altimetry measurements record gravity and elevation changes, respectively, which are useful for determining mass and volume change of the Antarctic Ice Sheet. Common methods employ products from regional climate modeling and firn modeling to aid interpretation and to link volume changes to mass changes. Estimating...
journal article 2021
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Broerse, D.B.T. (author), Norder, B. (author), Govers, Rob (author), Sokoutis, Dimitrios (author), Willingshofer, Ernst (author), Picken, S.J. (author)
Stress-dependent nonlinear upper mantle rheology has a firm base in rock mechanical tests, where this nonlinearity results from dislocation creep of minerals. In the last few decades there has been some attention to nonlinear, power-law, materials for application in scaled analogue experiments for tectonic processes. However, studies...
journal article 2019
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Hermans, T. H.J. (author), van der Wal, W. (author), Broerse, D.B.T. (author)
In regions undergoing glacial isostatic adjustment present-day horizontal surface motion is observed to point mostly, but not always, away from the former ice load. To interpret these observations, we investigate the direction of horizontal velocities using glacial isostatic adjustment models. The direction is controlled by the opposing...
journal article 2018
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Frederikse, T. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), Broerse, D.B.T. (author), Verlaan, M. (author)
One of the primary observational data sets of sea level is represented by the tide gauge record. We propose a new method to estimate variability on decadal time scales from tide gauge data by using a state space formulation, which couples the direct observations to a predefined state space model by using a Kalman filter. The model consists of...
journal article 2016
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Fuchs, Martin Johann (author), Hooper, Andrew (author), Broerse, D.B.T. (author), Bouman, Johannes (author)
The Gravity Recovery and Climate Experiment (GRACE) mission (launched 2002) and the Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) mission (March 2009 to November 2013) collected spaceborne gravity data for the preseismic and postseismic periods of the 2011 Tohoku-Oki earthquake. In addition, the dense Japan GeoNet Global...
journal article 2016
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Broerse, D.B.T. (author), Riva, R.E.M. (author), Simons, W.J.F. (author), Govers, R. (author), Vermeersen, L.L.A. (author)
More than 7 years of observations of postseismic relaxation after the 2004 Sumatra-Andaman earthquake provide an improving view on the deformation in the wide vicinity of the 2004 rupture. We include both Gravity Recovery and Climate Experiment (GRACE) gravity field data that show a large postseismic signal over the rupture area and GPS...
journal article 2015
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Frederikse, T. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), Broerse, D.B.T. (author)
journal article 2015
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Broerse, D.B.T. (author)
During earthquakes large scale mass displacements take place when slip on a fault deforms the earth’s crust. Besides, in the days to decades after the main shock ongoing deformation is usually observed that is related to relaxation of stresses caused by the earthquake. In this thesis I relate gravity changes as observed by the GRACE satellite...
doctoral thesis 2014
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Broerse, D.B.T. (author), Riva, R.E.M. (author), Vermeersen, B. (author)
During megathrust earthquakes, great ruptures are accompanied by large scale mass redistribution inside the solid Earth and by ocean mass redistribution due to bathymetry changes. These large scale mass displacements can be detected using the monthly gravity maps of the GRACE satellite mission. In recent years it has become increasingly common...
journal article 2014
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Fuchs, M.J. (author), Bouman, J. (author), Broerse, D.B.T. (author), Visser, P.N.A.M. (author), Vermeersen, L.L.A. (author)
The Japan Tohoku-Oki earthquake (9.0 Mw) of 11 March 2011 has left signatures in the Earth's gravity field that are detectable by data of the Gravity field Recovery and Climate Experiment (GRACE) mission. Because the European Space Agency's (ESA) satellite gravity mission Gravity field and steady-state Ocean Circulation Explorer (GOCE)—launched...
journal article 2013
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Broerse, D.B.T. (author), Vermeersen, L.L.A. (author), Riva, R.E.M. (author), Van der Wal, W. (author)
Large earthquakes do not only heavily deform the crust in the vicinity of the fault, they also change the gravity field of the area affected by the earthquake due to mass redistribution in the upper layers of the Earth. Besides that, for sub-oceanic earthquakes deformation of the ocean floor causes relative sea level changes and mass...
journal article 2011
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Broerse, D.B.T. (author), Visser, P.N.A.M. (author), Bouman, J. (author), Fuchs, M. (author), Vermeersen, L.L.A. (author), Schmidt, M. (author)
Large earthquakes do not only heavily deform the crust in the vicinity of the fault, they also change the gravity field of the area affected by the earthquake due to mass redistribution in the upper layers of the Earth. Besides that, for sub-oceanic earthquakes deformation of the ocean floor causes relative sea-level changes and mass...
conference paper 2011
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Broerse, D.B.T. (author)
The Mekelprize 2007 was won by Taco Broerse, who wrote an essay titled Google in China. Is it morally justified for a Western company to go along with self-censorship, especially in a country like China, where freedom of expression is under pressure? The jury found this essay to provide a strong analysis. The central question is explored from...
report 2006
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