document

Planetary Radio Interferometry and Doppler Experiment (PRIDE) of the JUICE Mission

Gurvits, L. (author), Cimò, Giuseppe (author), Dirkx, D. (author), Pallichadath, V. (author), Altobelli, Nicolas (author), Bocanegra Bahamon, T.M. (author), Cazaux, S.M. (author), Vermeersen, L.L.A. (author), Visser, P.N.A.M. (author)

Planetary Radio Interferometry and Doppler Experiment (PRIDE) is a multi-purpose experimental technique aimed at enhancing the science return of planetary missions. The technique exploits the science payload and spacecraft service systems without requiring a dedicated onboard instrumentation or imposing on the existing instrumentation any...

review 2023

document

Constraint of glacial isostatic adjustment in the North Sea with geological relative sea level and GNSS vertical land motion data

Simon, K.M. (author), Riva, R.E.M. (author), Vermeersen, L.L.A. (author)

In this study, we focus on improved constraint of the glacial isostatic adjustment (GIA) signal at present-day, and its role as a contributor to present-day sea level budgets. The main study area extends from the coastal regions of northwestern Europe to northern Europe. Both Holocene relative sea level (RSL) data as well as vertical land...

journal article 2021

document

Assessing Global Present-Day Surface Mass Transport and Glacial Isostatic Adjustment From Inversion of Geodetic Observations

Jiang, Yan (author), Wu, Xiaoping (author), van den Broeke, Michiel R. (author), Kuipers Munneke, Peter (author), Simonsen, Sebastian B. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

Long-term monitoring of global mass transport within the Earth system improves our ability to mitigate natural hazards and better understand their relations to climate change. Satellite gravity is widely used to monitor surface mass variations for its unprecedented spatial and temporal coverage. However, the gravity data contain signals from...

journal article 2021

document

PRIDE: Ground-based VLBI observations for Spaceborne Probes

Pallichadath, V. (author), Gurvits, L. (author), Dirkx, D. (author), Vermeersen, L.L.A. (author)

Planetary Radio Interferometry and Doppler Experiment (PRIDE) will exploit the signal recording and processing technology developed originally for Very Lonag Baseline interferometric (VLBI). The essence of PRIDE is in observing the spacecraft radio signal with a network of Earth-based radio telescopes. The PRIDE technique developed at the Joint...

abstract 2020

document

Can a Combination of Convective and Magmatic Heat Transport in the Mantle Explain Io's Volcanic Pattern?

Steinke, T. (author), van Sliedregt, D.A. (author), Vilella, K. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

Tidal dissipation makes Jupiter's moon Io the most volcanically active body in the solar system. Most of the heat generated in the interior is lost through volcanic activity. In this study, we aim to answer the questions: Can convection and melt migration in the mantle explain the spatial characteristics of Io's observed volcanic pattern? And...

journal article 2020

document

Improving sea-level projections on the Northwestern European shelf using dynamical downscaling

Hermans, T.H.J. (author), Tinker, Jonathan (author), Palmer, Matthew D. (author), Katsman, C.A. (author), Vermeersen, L.L.A. (author), Slangen, Aimée B.A. (author)

Changes in ocean properties and circulation lead to a spatially non-uniform pattern of ocean dynamic sea-level change (DSLC). The projections of ocean dynamic sea level presented in the IPCC AR5 were constructed with global climate models (GCMs) from the Coupled Model Intercomparison Project 5 (CMIP5). Since CMIP5 GCMs have a relatively...

journal article 2020

document

Do tidally-generated inertial waves heat the subsurface oceans of Europa and Enceladus?

Rovira Navarro, M. (author), Rieutord, Michel (author), Gerkema, Theo (author), Maas, Leo R.M. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

Some of the moons of the outer solar system harbour subsurface liquid oceans. Tidal dissipation plays an important role in preventing these oceans from freezing. In the past, most studies considered only tidal dissipation in the solid layers of these bodies (rock and ice). Recently, new studies considering tidal dissipation in the oceans of...

journal article 2019

document

Crevasse Propagation on Brittle Ice: Application to Cycloids on Europa

Poinelli, M. (author), Larour, Eric (author), Castillo-Rogez, Julie (author), Vermeersen, L.L.A. (author)

Existing lineaments on the surface of the Jovian moon Europa are thought to be the result of ongoing brittle crack formation in the elastic regime. Arcuate features are called cycloids and can be modeled using linear elastic fracture mechanics. Here, we build on existing terrestrial models of rift propagation and extend them to cycloids on...

journal article 2019

document

PRIDE: Near-field VLBI observations for Planetary Probes

Pallichadath, V. (author), Bocanegra Bahamon, T.M. (author), Dirkx, D. (author), Gurvits, L. (author), Vermeersen, L.L.A. (author)

Planetary Radio Interferometry and Doppler Experiment (PRIDE) is a multi-purpose experimental technique aimed at enhancing the science return of planetary missions. It is based on, the near-field phase-referencing VLBI (Very Long Baseline Interferometry) and radial Doppler measurements. It has been developed initially by the Joint Institute for...

poster 2018

document

Sea-level change in the Dutch Wadden Sea

Vermeersen, L.L.A. (author), Baart, F. (author), Cohen, Kim M. (author), Frederikse, T. (author), Kiden, Patrick (author), Kleinherenbrink, M. (author), Riva, R.E.M. (author), Slobbe, D.C. (author), van der Wegen, M. (author)

Rising sea levels due to climate change can have severe consequences for coastal populations and ecosystems all around the world. Understanding and projecting sea-level rise is especially important for low-lying countries such as the Netherlands. It is of specific interest for vulnerable ecological and morphodynamic regions, such as the...

journal article 2018

document

MIS 5e relative sea-level changes in the Mediterranean Sea: Contribution of isostatic disequilibrium

Stocchi, Paolo (author), Vacchi, Matteo (author), Lorscheid, Thomas (author), de Boer, Bas (author), Simms, Alexander R. (author), van de Wal, Roderik S W (author), Vermeersen, L.L.A. (author), Pappalardo, Marta (author), Rovere, Alessio (author)

Sea-level indicators dated to the Last Interglacial, or Marine Isotope Stage (MIS) 5e, have a twofold value. First, they can be used to constrain the melting of Greenland and Antarctic Ice Sheets in response to global warming scenarios. Second, they can be used to calculate the vertical crustal rates at active margins. For both applications,...

journal article 2018

document

Laser and radio tracking for planetary science missions—a comparison

Dirkx, D. (author), Prochazka, Ivan (author), Bauer, Sven (author), Visser, P.N.A.M. (author), Noomen, R. (author), Gurvits, L. (author), Vermeersen, L.L.A. (author)

At present, tracking data for planetary missions largely consists of radio observables: range-rate (Doppler), range and angular position (VLBI/Δ DOR). Future planetary missions may use Interplanetary Laser Ranging (ILR) as a tracking observable. Two-way ILR will provide range data that are about 2 orders of magnitude more accurate than radio...

journal article 2018

document

Planetary radio interferometry and doppler experiment (PRIDE) for planetary probes

Pallichadath, V. (author), Bocanegra Bahamon, T.M. (author), Cimo, G (author), Dirkx, D. (author), Duev, D. A. (author), Gurvits, L. (author), Molera Calves, G (author), Vermeersen, L.L.A. (author)

poster 2017

document

A full-Maxwell approach for large angle polar wander of viscoelastic bodies

Hu, H. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

For large-angle long-term true polar wander (TPW) there are currently two types of nonlinear methods which give approximated solutions: those assuming that the rotational axis coincides with the axis of maximum moment of inertia (MoI), which simplifies the Liouville equation, and those based on the quasi-fluid approximation, which approximates...

journal article 2017

document

A numerical method for reorientation of rotating tidally deformed viscoelastic bodies

Hu, H. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

Existing approaches for simulating the true polar wander (TPW) of a viscoelastic body can be divided into three categories: (i) a linear dynamic approach which uses the linearized Liouville equation (e.g., Wu and Peltier (1984) and Mitrovica et al. (2005)); (ii) a nonlinear dynamic approach which is based on the quasi-fluid approximation (e.g...

journal article 2017

document

Comparing gravity-based to seismic-derived lithosphere densities: A case study of the British Isles and surrounding areas

Root, B.C. (author), Ebbing, J (author), van der Wal, W. (author), England, R.W. (author), Vermeersen, L.L.A. (author)

Lithospheric density structure can be constructed from seismic tomography, gravity modelling, or using both data sets. The different approaches have their own uncertainties and limitations. This study aims to characterize and quantify some of the uncertainties in gravity modelling of lithosphere densities. To evaluate the gravity modelling we...

journal article 2017

document

On a spectral method for forward gravity field modelling

Root, B.C. (author), Novak, P. (author), Dirkx, D. (author), Kaban, M. (author), van der Wal, W. (author), Vermeersen, L.L.A. (author)

This article reviews a spectral forward gravity field modelling method that was initially designed for topographic/isostatic mass reduction of gravity data. The method transforms 3D spherical density models into gravitational potential fields using a spherical harmonic representation. The binomial series approximation in the approach, which...

journal article 2016

document

On the in-situ detectability of Europa's water vapour plumes from a flyby mission

Huybrighs, Hans L F (author), Futaana, Yoshifumi (author), Barabash, Stanislav (author), Wieser, Martin (author), Wurz, Peter (author), Krupp, Norbert (author), Glassmeier, Karl Heinz (author), Vermeersen, L.L.A. (author)

We investigate the feasibility of detecting water molecules (H₂O) and water ions (H₂O⁺) from the Europa plumes from a flyby mission. A Monte Carlo particle tracing method is used to simulate the trajectories of neutral particles under the influence of Europa's gravity field and ionized particles under the...

journal article 2016

document

Postseismic GRACE and GPS observations indicate a rheology contrast above and below the Sumatra slab

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

document

Glacial isostatic adjustment in the static gravity field of Fennoscandia

Root, B.C. (author), Van der Wal, W. (author), Novak, P. (author), Ebbing, J. (author), Vermeersen, L.L.A. (author)

In the central part of Fennoscandia, the crust is currently rising, because of the delayed response of the viscous mantle to melting of the Late Pleistocene ice sheet. This process, called Glacial Isostatic Adjustment (GIA), causes a negative anomaly in the present-day static gravity field as isostatic equilibrium has not been reached yet....

journal article 2015