Representation of sharp rifts and faults mechanics in modeling ice shelf flow dynamics: Application to Brunt/Stancomb-Wills Ice Shelf, Antarctica [PDF]
, 2014 Ice shelves play a major role in buttressing ice sheet flow into the ocean, hence the importance of accurate numerical modeling of their stress regime. Commonly used ice flow models assume a continuous medium and are therefore complicated by the presence
Borstad, C. P. +5 more
core +1 more source
Tuning parameters of a sea ice model using machine learning [PDF]
Geoscientific Model DevelopmentWe developed a new method for tuning sea ice rheology parameters, which consists of two components: a new metric for characterising sea ice deformation patterns and a machine learning (ML)-based approach for tuning rheology parameters. We applied the new
A. Korosov, Y. Ying, E. Ólason
doaj +1 more source
Landfast sea ice material properties derived from ice bridge simulations using the Maxwell elasto-brittle rheology [PDF]
The Cryosphere, 2020 The Maxwell elasto-brittle (MEB) rheology is implemented in the Eulerian finite-difference (FD) modeling framework commonly used in classical viscous-plastic (VP) models.
M. Plante +3 more
doaj +1 more source
Arctic sea ice mass balance in a new coupled ice–ocean model using a brittle rheology framework [PDF]
The Cryosphere, 2023 Sea ice is a key component of the Earth's climate system as it modulates the energy exchanges and associated feedback processes at the air–sea interface in polar regions.
G. Boutin +7 more
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Stress and deformation characteristics of sea ice in a high-resolution, anisotropic sea ice model [PDF]
, 2018 The drift and deformation of sea ice floating on the polar oceans is caused by the applied wind and ocean currents. Over ocean basin length scales the internal stresses and boundary conditions of the sea ice pack result in observable deformation patterns.
Feltham, Danny L. +2 more
core +2 more sources
A unified framework for large-scale fabric evolution models and anisotropic rheologies [PDF]
The CryosphereIce is anisotropic, with its viscosity varying by an order of magnitude in different directions when ice crystals align. However, how this variation affects ice flow is not well understood.
D. H. Richards +5 more
doaj +1 more source
A hybrid ice-mélange model based on particle and continuum methods [PDF]
The CryosphereIce mélange, a composite of sea ice and icebergs, can have a major influence on sea-ice–ocean interactions. However, ice mélange has not been represented in climate models because numerically efficient realizations do not exist.
S. Kahl, C. Mehlmann, D. Notz
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Modelling the influence of marine ice on the dynamics of an idealised ice shelf
Journal of Glaciology, 2023 Understanding the dynamic behaviour of ice shelves, specifically the controls on their ability to buttress the flow of ice into the ocean, is critical for predicting future ice-sheet contributions to sea level rise.
Lisa Craw +4 more
doaj +1 more source
Implementation of a brittle sea ice rheology in an Eulerian, finite-difference, C-grid modeling framework: impact on the simulated deformation of sea ice in the Arctic [PDF]
Geoscientific Model DevelopmentWe have implemented the brittle Bingham–Maxwell sea ice rheology (BBM) into SI3, the sea ice component of NEMO. After discussing the numerical aspects and requirements that are specific to the implementation of a brittle rheology in the Eulerian, finite-
L. Brodeau +3 more
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On the influence of model physics on simulations of Arctic and Antarctic sea ice [PDF]
The Cryosphere, 2011 Two hindcast (1983–2007) simulations are performed with the global, ocean-sea ice models NEMO-LIM2 and NEMO-LIM3 driven by atmospheric reanalyses and climatologies.
F. Massonnet +5 more
doaj +1 more source