On the nonlinear viscosity of the orthotropic bulk rheology
Journal of Glaciology, 2022 We compare different ways the bulk flow nonlinearity of glacier ice can be captured in an orthotropic rheology. Specifically, we compare the unapproximated orthotropic rheology, derived from plastic potential theory, to existing approximations that ...
Nicholas M. Rathmann, David A. Lilien
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Microstructure evolution of young sea ice from a Svalbard fjord using micro-CT analysis
Journal of Glaciology, 2022 We analysed the three-dimensional microstructure of sea ice by means of X-ray-micro computed tomography. Microscopic (brine- and air- pore sizes, numbers and connectivity) and macroscopic (salinity, density, porosity) properties of young Arctic sea ice ...
Martina Lan Salomon +2 more
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A multi-ice-core, annual-layer-counted Greenland ice-core chronology for the last 3800 years: GICC21 [PDF]
Climate of the Past, 2022 Ice-core timescales are vital for the understanding of past climate; hence they should be updated whenever significant amounts of new data become available.
G. Sinnl +9 more
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Reconstruction of past atmospheric CO2 concentrations by ice core analyses [PDF]
, 2000 Physikalisches Institut25Paper published in: Physics of Ice Core Records / ed. by Takeo Hondoh. Sapporo : Hokkaido University Press, 2000.
Stauffer, Bernhard, Tschumi, J.
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Using Icepack to reproduce ice mass balance buoy observations in landfast ice: improvements from the mushy-layer thermodynamics [PDF]
The CryosphereIcepack (v1.1.0) – the column thermodynamics model of the Community Ice CodE (CICE) version 6 – is used to assess how changing the thermodynamics from the Bitz and Lipscomb (1999) physics (hereafter BL99) to the mushy-layer physics impacts the model ...
M. Plante +8 more
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Pore Accessibility in Amorphous Solid Water
The Astrophysical Journal, 2022 The porous nature of amorphous solid water (ASW) can significantly effect the chemical evolution of any planetary or astrophysical surface it forms on due to its ability to trap and retain volatiles. The amount of volatiles that can enter an ASW grain or
Rebecca A. Carmack +2 more
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Density matters: ice compressibility and glacier mass estimation
Journal of Glaciology, 2022 Ice flow models typically assume that ice is incompressible, a reasonable assumption because ice density changes are indeed small and have a correspondingly small effect on the overall mass balance of glaciers and ice sheets.
Bradley Paul Lipovsky
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Upstream flow effects revealed in the EastGRIP ice core using Monte Carlo inversion of a two-dimensional ice-flow model [PDF]
The Cryosphere, 2021 The Northeast Greenland Ice Stream (NEGIS) is the largest active ice stream on the Greenland Ice Sheet (GrIS) and a crucial contributor to the ice-sheet mass balance.
T. A. Gerber +8 more
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An assessment of key model parametric uncertainties in projections of Greenland Ice Sheet behavior [PDF]
, 2012 Lack of knowledge about the values of ice sheet model input parameters introduces substantial uncertainty into projections of Greenland Ice Sheet contributions to future sea level rise.
Stone, Emma J. +17 more
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Seasonal Arctic sea ice forecasting with probabilistic deep learning
Nature Communications, 2021 Accurate seasonal forecasts of sea ice are highly valuable, particularly in the context of sea ice loss due to global warming. A new machine learning tool for sea ice forecasting offers a substantial increase in accuracy over current physics-based ...
Tom R. Andersson +16 more
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