Results 111 to 120 of about 27,656 (314)

Surface oscillations in channeled snow flows

, 2007
An experimental device has been built to measure velocity profiles and friction laws in channeled snow flows. The measurements show that the velocity depends linearly on the vertical position in the flow and that the friction coefficient is a first-order
A. Bouchet, Bonamy, Bonamy, Bouchet, Bouchet, Casassa, Dent, Dent, Douady, Ericksson, Kern, Louge, M. Rastello, Naaim, Nishimura, Norem, Perla, Savage   +17 more
core   +3 more sources

Automated X‐ray computed tomography‐based analysis of clast fabric in drill‐cores of glacial diamicts using deep learning models

Boreas, EarlyView.
Clast‐fabric analysis is a widely used method for investigating depositional and deformation processes in glacial sediments. However, traditional field‐based approaches lack standardization, are time consuming and introduce sampling bias. This study aimed to develop a novel approach to automate clast‐fabric analysis using machine learning‐based image ...
Bennet Schuster, David Mair, Timothy C. Schmid, Lukas Gegg, Marius W. Buechi, Sebastian Schaller, Flavio S. Anselmetti, Frank Preusser   +7 more
wiley   +1 more source

Remembering Jack Ives (15 October 1931–15 September 2024)

Mountain Research and Development
Obituary for Jack D. Ives.
Seth Sicroff, Alton C. Byers
doaj   +1 more source

Toward Improved Understanding of Changes in Greenland Outlet Glacier Shear Margin Dynamics in a Warming Climate

Frontiers in Earth Science, 2018
The Greenland Ice Sheet has experienced accelerated mass loss over the last couple decades, in part due to destabilization of marine-terminating outlet glaciers.
Derrick J. Lampkin, Byron Parizek, Eric Y. Larour, Hélène Seroussi, Casey Joseph, John P. Cavanagh   +5 more
doaj   +1 more source

Estimating the characteristics of runoff inflow into Lake Gojal in ungauged, highly glacierized upper Hunza River Basin, Pakistan [PDF]

, 2013
Motivated by the potential flood outburst of Lake Gojal in the ungauged highly glacierized (27%) upper Hunza River Basin (HRB) in Pakistan that was dammed by a massive landslide on 4 January 2010, we attempt to analyze the characteristics of water inflow
Hagemann, S., Xu, J., Zhang, S., Zhao, Q.   +3 more
core   +2 more sources

Shoreline and deglaciation chronology in southeast Norway

Boreas, EarlyView.
The postglacial relative sea level history is reconstructed in four areas of mid‐ and inner Oslofjorden in southeast Norway. The reconstructions are based on radiocarbon‐dated raised shoreline levels from 42 sites, mainly isolation basins, and limiting ages from four lakes above the marine limit.
Anders Romundset, Isak Roalkvam, Mikis van Boeckel, Fredrik Høgaas, Kari E.  Henningsmoen, Helge I. Høeg, Rolf Sørensen   +6 more
wiley   +1 more source

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown, Douglas I. Benn, Nicholas R.J. Hulton, Raymond, Ruth H. Mottram, Van der Veen   +5 more
core   +1 more source

Living on the edge: Pleistocene ice‐free refugia and collared lemming (Dicrostonyx sp.) in the North American High Arctic

Boreas, EarlyView.
Comparing the morphological variation of North American collared lemming with climatic and geographic features, as well as genetic insight and the ice sheet extend, indicate the strong geographic structure underlying the morphological diversity of the genus, that might be linked with a local Pleistocene survival in the High Arctic.
Louis Arbez, Aurelien Royer, Benjamin Pohl, Jean‐François Buoncristiani, Sophie Montuire   +4 more
wiley   +1 more source

Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland

Boreas, EarlyView.
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells, Þorsteinn Sæmundsson, Edwin R. C. Baynes, Timothy Beach, Sheryl Luzzadder‐Beach   +4 more
wiley   +1 more source

An introduction to the Annals of Glaciology special issue on the ‘International Glaciological Society Global Seminar Series: New Research Directions’

Annals of Glaciology, 2022
Tavi Murray, H. Jiskoot, Magnús Már Magnússon, Rebecca Schlegel, L. Vargo, Doug MacAyeal   +5 more
semanticscholar   +1 more source