Diffuse optics for glaciology [PDF]
Optics Express, 2021 Optical probing of glaciers has the potential for tremendous impact on environmental science. However, glacier ice is turbid, which prohibits the use of most established optical measurements for determining a glacier's interior structure. Here, we propose a method for determining the depth, scattering and absorption length based upon diffuse ...
M. Allgaier, Brian J. Smith
arxiv +3 more sources
On the finite element approximation of a semicoercive Stokes variational inequality arising in glaciology [PDF]
arXiv, 2021 Stokes variational inequalities arise in the formulation of glaciological problems involving contact. We consider the problem of a two-dimensional marine ice sheet with a grounding line, although the analysis presented here is extendable to other contact problems in glaciology, such as that of subglacial cavitation. The analysis of this problem and its
G. D. Diego, P. Farrell, I. Hewitt
arxiv +3 more sources
A Hierarchical Spatio-Temporal Statistical Model Motivated by Glaciology [PDF]
Journal of Agricultural Biological and Environmental Statistics, 2019 In this paper, we extend and analyze a Bayesian hierarchical spatio-temporal model for physical systems. A novelty is to model the discrepancy between the output of a computer simulator for a physical process and the actual process values with a ...
Aðalgeirsdóttir, Guðfinna +6 more
core +3 more sources
XX century: Brief historical outline of Soviet/Russian glaciology
Лëд и снег, 2019 The article describes the formation and development of Soviet glaciology during the second half of the XX century and the role of the Glaciological Department of the Institute of Geography of the USSR Academy of Sciences in this process.
V. M. Kotlyakov
doaj +2 more sources
Formation of Structure in Snowfields: Penitentes, Suncups, and Dirt Cones [PDF]
Physical Review E, vol 63, 056129 2001, 2000 Penitentes and suncups are structures formed as snow melts, typically high in the mountains. When the snow is dirty, dirt cones and other structures can form instead. Building on previous field observations and experiments, this work presents a theory of ablation morphologies, and the role of surface dirt in determining the structures formed.
A. Jahn +22 more
arxiv +4 more sources
Reflections On the Anomalous ANITA Events: The Antarctic Subsurface as a Possible Explanation [PDF]
Annals of Glaciology 1--7, 2020, 2019 The ANITA balloon experiment was designed to detect radio signals initiated by neutrinos and cosmic ray air showers. These signals are typically discriminated by the polarization and phase inversions of the radio signal. The reflected signal from cosmic rays suffer phase inversion compared to a direct tau neutrino event.
Kusenko, Alexander +5 more
arxiv +3 more sources
Dynamically coupling the non-linear Stokes equations with the Shallow Ice Approximation in glaciology: Description and first applications of the ISCAL method [PDF]
Journal of Computational Physics, 2015 We propose and implement a new method, called the Ice Sheet Coupled Approximation Levels (ISCAL) method, for simulation of ice sheet flow in large domains under long time-intervals. The method couples the exact, full Stokes (FS) equations with the Shallow Ice Approximation (SIA).
J. Ahlkrona +3 more
arxiv +3 more sources
Introduction to the Annals of Glaciology ‘Ice in a Sustainable Society’ issue [PDF]
Annals of Glaciology, 2023 Sérgio H. Faria
openalex +2 more sources
Solving the Vialov equation of glaciology in terms of elementary functions [PDF]
arXiv, 2017 Very few exact solutions are known for the non-linear Vialov ordinary differential equation describing the longitudinal profiles of alpine glaciers and ice caps under the assumption that the ice deforms according to Glen's constitutive relationship. Using a simple, yet wide, class of models for the accumulation rate of ice and Chebysev's theorem on the
V. Faraoni
arxiv +2 more sources
Vertical glaciology: The second discovery of the third dimension in climate research [PDF]
Centaurus, 2020 The history of climate research in the 20th century has been characterised by a crucial shift from a geography-oriented, two-dimensional approach towards a physics-based, three-dimensional concept of climate.
Dania Achermann
openalex +2 more sources