Results 11 to 20 of about 217 (141)
Journal of Glaciology, 2022 Polycrystalline ice is known to exhibit macroscopic anisotropy in relative permittivity (ɛ) depending on the crystal orientation fabric (COF). Using a new system designed to measure the tensorial components of ɛ, we investigated the dielectric anisotropy
Tomotaka Saruya, Shuji Fujita, Ryo Inoue
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A stratigraphy-based method for reconstructing ice core orientation
Annals of Glaciology, 2021 Ever since the first deep ice cores were drilled, it has been a challenge to determine their original, in-situ orientation. In general, the orientation of an ice core is lost as the drill is free to rotate during transport to the surface. For shallow ice
Julien Westhoff +8 more
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Internal structure of a Himalayan debris-covered glacier revealed by borehole optical televiewing
Journal of Glaciology, 2023 Characterising the structures within glaciers can give unique insight into ice motion processes. On debris-covered glaciers, traditional structural glaciological mapping is challenging because the lower glacier is hidden by the supraglacial debris layer.
Katie E. Miles +4 more
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The structural glaciology of Kongsvegen, Svalbard, and its role in landform genesis [PDF]
Journal of Glaciology, 1998 AbstractMapping of the structural glaciology of Kongsvegen, Svalbard, reveals evidence for four main deformational structures. These are stratification, longitudinal foliation, thrusts and crevasse traces. These structures are considered in terms of their contribution to debris entrainment, transport and subsequent landform development.
Neil F. Glasser +4 more
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Journal of Glaciology, 2021 The weakening and/or removal of floating ice shelves in Antarctica can induce inland ice flow acceleration. Numerical modelling suggests these processes will play an important role in Antarctica's future sea-level contribution, but our understanding of ...
Jennifer F. Arthur +5 more
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A structural glaciological analysis of the 2002 Larsen B ice-shelf collapse [PDF]
Journal of Glaciology, 2008 AbstractThis study provides a detailed structural glaciological analysis of changes in surface structures on the Larsen B ice shelf on the Antarctic Peninsula prior to its collapse in February–March 2002. Mapped features include the ice-shelf front, rifts, crevasses, longitudinal linear surface structures and meltwater features.
N.F. Glasser, T.A. Scambos
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A Comparison of Plasticity Regularization Approaches for Geodynamic Modeling
Geochemistry, Geophysics, Geosystems, 2023 The emergence, geometry and activation of faults are intrinsically linked to frictional rheology. The latter is thus a central element in geodynamic simulations which aim at modeling the generation and evolution of fault zones and plate boundaries ...
Thibault Duretz +3 more
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Airborne Snow Radar Data Simulation With Deep Learning and Physics-Driven Methods
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Monitoring properties of ice sheets in polar regions is one of the main challenges in glaciology. There is a large amount of heterogeneous radar data from the polar regions that have been gathered through expensive missions.
Masoud Yari +7 more
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International Journal of Applied Earth Observations and Geoinformation, 2023 Reconstruction of glacial topography is important for assessing the ice dynamics of glaciers in the past and understanding how they may respond to climate change in the future.
Gang Qiao +5 more
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Effects of microparticles on deformation and microstructural evolution of fine-grained ice
Journal of Glaciology, 2019 We investigated the effects of microparticles and grain size on the microstructural evolutions and mechanical properties of polycrystalline ice. Uniaxial compression tests were conducted using fine-grained pure ice and silica-dispersed ice under various ...
TOMOTAKA SARUYA +5 more
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