FEniCS on windows
FEniCS is a really nice tool for finite element modelling in python. It is difficult to install FEniCS on windows. The official instructions use a docker image. which I think is a bit heavy handed. I …
Mar 25, 2022Home
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Modeling enhanced firn densification due to strain softening
Ice becomes more less viscous when it is being strained. It is a power law fluid. Therefore firn densifies faster in shear margins. In this paper we show how existing firn densification models can be …
Sep 2, 2021 -
On the limitations of using polarimetric radar sounding to infer the crystal-orientation fabric of ice masses
The orientation of ice-crystal grains in glacier ice locally co-evolve with and can enhance the flow of ice. Inferring the grain orientation structure inside glaciers and ice-sheets is therefore …
Sep 2, 2021 -
Estimating the ice thickness of the Müller Ice Cap to support selection of a drill site
Feb 2, 2021 -
Upstream flow effects revealed in the EastGRIP ice-core using a Monte Carlo inversion of a two-dimensional ice-flow model
The EastGRIP ice core is located in an ice-stream on the eastern flank of the Greenland ice-sheet. Deeper and older ice in the ice core will have originated upstream from the drill site. In this …
Feb 2, 2021 -
Ice thickness and volume of Renland Ice Cap, East Greenland
Dec 1, 2020 -
The anatomy of past abrupt warmings recorded in Greenland ice
It is not often that negative results gets published in a high impact journal. Here, we highlight the absence of a systematic pattern in the anatomy of abrupt changes as recorded in different ice …
Dec 1, 2020 -
Effect of an orientation-dependent nonlinear grain fluidity on bulk directional enhancement-factors
Ice with a strong fabric deforms more readily in some directions. Nicholas Rathmann levels up the theory with a better treatment of how grains influence bulk properties. The impact can be an order of …
Nov 30, 2020 -
Surface velocity of the Northeast Greenland Ice Stream (NEGIS)
The Northeast Greenland Ice Stream (NEGIS) extends around 600 km from its onset in the interior of Greenland to the coast. Several maps of surface velocity and topography in Greenland exist, but …
Jul 1, 2020 -
Hagen Bræ, A Surging Glacier in North Greenland — 35 Years of Observations
Improved ice velocity measurements with Sentinel-1 TOPS interferometry.
Jan 1, 2020 -
Improved ice velocity measurements with Sentinel-1 TOPS interferometry
Improved ice velocity measurements with Sentinel-1 TOPS interferometry.
Jan 1, 2020 -
East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat
Grains of dust in an ice core illustrate how fast a landscape is covered with ice after an ice age sets in.
Jul 1, 2018