A5083750609- earthquake and tectonic studies
- Geophysics and Gravity Measurements
- Cryospheric studies and observations
- Climate change and permafrost
- Geology and Paleoclimatology Research
- Geomagnetism and Paleomagnetism Studies
- Methane Hydrates and Related Phenomena
- Atmospheric and Environmental Gas Dynamics
- Arctic and Antarctic ice dynamics
- Climate variability and models
- Geochemistry and Geologic Mapping
- Geological Studies and Exploration
- Landslides and related hazards
- High-pressure geophysics and materials
- Geological Modeling and Analysis
Delft University of Technology
2019-2023
Royal Netherlands Meteorological Institute
2019-2020
Wageningen University & Research
2019
University of Groningen
2019
The Arctic region is projected to experience amplified warming as well strongly increasing precipitation rates. Equally important trends in the mean climate are changes interannual variability, but fluctuations highly uncertain and associated processes unknown. Here, we use various state-of-the-art global model simulations show that variability of will likely increase markedly (up 40% over 21st century), especially summer. This can be attributed increased poleward atmospheric moisture...
ABSTRACT Long-term climate variations have the potential to amplify or dampen (human-induced) trends in temperature. Understanding natural variability is therefore of vital importance, especially since itself may change with a changing climate. Here, we quantify magnitude and other characteristics interannual decadal Arctic temperature their dependence on state. Moreover, identify processes responsible for state dependency variations, using five quasi-equilibrium simulations state-of-the-art...
Abstract The redistribution of past and present ice ocean loading on Earth's surface causes solid Earth deformation geoid changes, known as glacial isostatic adjustment. is controlled by elastic viscous material parameters, which are inhomogeneous in the Earth. We a new viscoelastic model ASPECT (Advanced Solver for Problems ConvecTion): modern, massively parallel, open‐source finite element code originally designed to simulate convection mantle. show performance compare solutions TABOO,...
Abstract The long‐wavelength negative gravity anomaly over Hudson Bay coincides with the area depressed by Laurentide Ice Sheet during Last Glacial Maximum, suggesting that it is, at least partly, caused glacial isostatic adjustment (GIA). Additional contributions to static field stem from surface dynamic topography, core‐mantle boundary (CMB) and density anomalies in subsurface. Previous estimates of contribution GIA range 25% more than 80%. However, these did not include uncertainties all...
SUMMARY Significant land uplift and horizontal motions have been recorded with Global Navigation Satellite Systems (GNSS) in areas such as Alaska, Iceland the Northern Antarctic Peninsula (NAP) a result of Glacial Isostatic Adjustment (GIA) due to ice melt after Little Ice Age. Here, analysis displacement rates can be extra importance, they are more sensitive Earth properties shallower layers than vertical rates. Proper modelling dedicated GIA models requires spherical compressible rheology....
<p>The Arctic region is projected to experience amplified warming as well strongly increasing precipitation rates. Equally important trends in the mean climate are changes interannual variability, but fluctuations highly uncertain and associated processes unknown. Here we use various state-of-the-art global model simulations show that variability of will likely increase markedly (up 40% over 21<sup>st</sup> century), especially summer. This can be...
<p>The negative anomaly present in the static gravity field near Hudson Bay bears striking resemblance to area depressed by Laurentide ice sheet during Last Glacial Maximum, suggesting that it is at least partly due Isostatic Adjustment (GIA), but mantle convection and density anomalies crust upper are also expected contribute. At moment, contribution of GIA this still disputed. Estimates, which strongly depend on viscosity mantle, range from 25 percent more than 80 percent....
Earth and Space Science Open Archive This work has been accepted for publication in Journal of Geophysical Research - Solid Earth. Version RecordESSOAr is a venue early communication or feedback before peer review. Data may be preliminary. Learn more about preprints. preprintOpen AccessYou are viewing the latest version by default [v1]Long-wavelength gravity field constraint on lower mantle viscosity North AmericaAuthors Jesse Milan Reusen Barend Cornelis Root iD Wolfgang Szwillus Javier...
<p>In geodynamic studies, most Finite-Element (FE) models in the commercial FE software Abaqus use elastic foundations at internal boundaries. This method works well for incompressible and so-called material-compressible material parameters but it is unclear if sufficiently implementing compressibility, especially a 3D spherical model. The latter of importance investigations glacial isostatic adjustment (GIA). A possible alternative based on combination explicit gravity loading...
<p>A new finite element method called FEMIBSF is presented that capable of modelling Glacial Isostatic Adjustment (GIA) on compressible earth models with three-dimensional (3D) structures. This takes advantage the classical techniques to calculate deformational and gravitational responses driving forces GIA (including body pressures Earth’s surface core-mantle boundary, namely CMB). Following Wu (2004) Wong & (2019), we implement in commercial software...