Results 71 to 80 of about 3,752 (268)
Boreas, EarlyView.Diamictic deposits within a presumed Early Pleistocene overdeepened basin are investigated with a combined sedimentological‐geotechnical approach including analysis via μCT scans. Sedimentary facies, geotechnical properties, and microstructures reflect a transition from glacier‐proximal deposition towards direct ice contact and subglacial deformation ...
Clare A. Bamford +5 more
wiley +1 more source
Distributed acoustic sensing of microseismic sources and wave propagation in glaciated terrain
Nature Communications, 2020 In this study, Walter and colleagues deploy a 1 km long fiber optics cable on a glacier surface. Via the use of distributed acoustic sensing, the authors are capable of monitoring glacier dynamics and Alpine mass movements.
F. Walter +6 more
doaj +1 more source
Boreas, EarlyView.De Geer moraines may act as valuable ice‐marginal indicators; however, to date, their variable mode of formation has presented challenges for this utility. Here, we present sedimentological and ground penetrating radar data of DGMs located in southwest Finland.
Gwyneth E. Rivers +5 more
wiley +1 more source
Journal of GlaciologyThe Automated Meteorology—Ice—Geophysics Observation System 3 (AMIGOS-3) is a multi-sensor on-ice ocean mooring and weather, camera and precision GPS measurement station, controlled by a Python script.
Ted A. Scambos +20 more
doaj +1 more source
An inventory of subglacial overdeepenings in southern Germany and Austria
Boreas, EarlyView.We present an inventory and morphometric characterization of >100 individual overdeepened basins in southern Germany and Austria compiled from heterogeneous sources. Arrangement and dimensions of overdeepenings are compared to those of their western Alpine counterparts, to catchment topographies and bedrock lithologies, and to modelled ice‐flow ...
Lukas Gegg +5 more
wiley +1 more source
Boreas, EarlyView.This study contains a comprehensive regional analysis of the orientations of tunnel valleys, faults and salt structures in the North German Basin, aiming to identify correlations that might indicate a structural control on tunnel‐valley formation. A structural control on tunnel‐valley formation has been repeatedly postulated and correlations have been ...
Jörg Lang +5 more
wiley +1 more source
Boreas, EarlyView.Here we report on the properties of a glacial sediment succession including various till facies and some subglacial meltwater deposits from a site in central Poland close to the outermost extent of the Scandinavian Ice Sheet during the last glaciation.
Piotr Hermanowski, Jan A. Piotrowski
wiley +1 more source
Boreas, EarlyView.Basal conditions that facilitate fast ice flow are still poorly understood and their parameterization in ice‐flow models results in high uncertainties in ice‐flow and consequent sea‐level rise projections. Direct observations of basal conditions beneath modern ice streams are limited due to the inaccessibility of the bed.
Rebecca Schlegel +5 more
wiley +1 more source
Automated delineation and morphometry of unclassified subglacial bedforms
Boreas, EarlyView.We present an automated tool for mapping and analysing subglacial bedforms using volumetric obscurance, without classification. Tested on ArcticDEM data, the method produces bedform outlines with 75% correspondence compared to manually digitized maps.
Sofyane Hesni +5 more
wiley +1 more source
Glaciology at the SCAR Open Science Conference in Auckland, New Zealand
Лëд и снег, 2015 Glaciology at the SCAR Open Science Conference in Auckland, New ...
N. I. Osokin
doaj +1 more source