Results 41 to 50 of about 953 (168)
Estimating the elastic modulus of landfast ice from wave observations
Journal of Glaciology, 2023 Progress in our understanding of wave–ice interactions is currently hindered by the lack of in situ observations and information of sea-ice properties, including the elastic modulus.
Joey J. Voermans +5 more
doaj +1 more source
Boreas, EarlyView.The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats have been the object of dating efforts to reconstruct local climatic events and compare them to global trends.
Bruno Belotti +5 more
wiley +1 more source
Acquisition of a 3 min, two-dimensional glacier velocity field with terrestrial radar interferometry
Journal of Glaciology, 2017 Outlet glaciers undergo rapid spatial and temporal changes in flow velocity during calving events. Observing such changes requires both high temporal and high spatial resolution methods, something now possible with terrestrial radar interferometry. While
DENIS VOYTENKO +7 more
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Boreas, EarlyView.We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher +9 more
wiley +1 more source
Direct measurement of optical properties of glacier ice using a photon-counting diffuse LiDAR
Journal of Glaciology, 2022 The production of meltwater from glacier ice, which is exposed at the margins of land ice during the summer, is responsible for a large proportion of glacier mass loss.
Markus Allgaier +5 more
doaj +1 more source
Near Surface Geophysics, Volume 24, Issue 2, Page 170-186, April 2026.Abstract This study presents a methodological framework for estimating electromagnetic wave velocities in ground‐penetrating radar (GPR) data based exclusively on the analysis of diffractions. The approach integrates diffraction separation using the plane wave destruction algorithm and subsequent velocity refinement through the residual diffraction ...
Ian E. Vogado +3 more
wiley +1 more source
An efficient melting probe for glacial research
Annals of Glaciology, 2021 In this paper, we present an electric-thermal drill with a novel design of a melting head that was developed within the EnEx-RANGE project. The design combines a short melting head with a large surface area of parabolic shape.
Dirk Heinen +3 more
doaj +1 more source
AGU Advances, Volume 7, Issue 2, April 2026.Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley +1 more source
Anisotropic Melt Inclusions as a Confounding Signal for Ice‐Penetrating Radar Observations
Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.Abstract Ice‐penetrating radar is a powerful geophysical tool for understanding the subsurfaces of Earth, Mars, and icy moons. Radar reflectivity, attenuation, and birefringence are used to infer subsurface hydrology, englacial temperature, water content, and crystal orientation fabric.
A. H. Cheng +5 more
wiley +1 more source
Journal of Glaciology, 2020 On 30 September 2017, an Air France Airbus A380-800 suffered a failure of its fourth engine while over Greenland. This failure resulted in the loss of the engine fan hub, fan blades and surrounding structure.
Kenneth D. Mankoff +14 more
doaj +1 more source