Results 91 to 100 of about 84,412 (233)

Glaciers and why they surge

open access: yesEos, Transactions American Geophysical Union, 1984
Researchers studying southern Alaska's Variegated Glacier believe they have found an explanation for why the 24‐km‐long ice mass, like other "surging" glaciers, periodically speeds up in its movement down valley. The surges, they propose, have to do with increases in water pressure beneath the glacier— the result of inhibited drainage at the base of ...
openaire   +1 more source

Assessing the catastrophic break-up of Briksdalsbreen, Norway, associated with rapid climate change

open access: yes, 2011
Recent research has raised concerns about the potential influence of rapid climate change on the stability of major ice sheets. The behaviour of glaciers is determined largely by the processes and conditions operating at their base.
Kathryn C. Rose   +12 more
core   +1 more source

Transient subglacial water routing efficiency modulates ice velocities prior to surge termination on Sít’ Kusá, Alaska

open access: yesJournal of Glaciology
Glacier surges are opportunities to study large amplitude changes in ice velocities and accompanying links to subglacial hydrology. Although the surge phase is generally explained as a disruption in the glacier's ability to drain water from the bed, the ...
Yoram Terleth   +5 more
doaj   +1 more source

Distinguishing Glaciers between Surging and Advancing by Remote Sensing: A Case Study in the Eastern Karakoram

open access: yesRemote Sensing, 2020
The Karakoram has had an overall slight positive glacier mass balance since the end of 20th century, which is anomalous given that most other regions in High Mountain Asia have had negative changes.
Mingyang Lv   +7 more
doaj   +1 more source

Medvezhiy Glacier surge in 2011

open access: yesIce and Snow, 2015
The paper presents results of monitoring of the Medvezhiy Glacier state for the period from its surge of 2001 to the last pulsation of 2011. This monitoring is performed based on the photographing made from the Russian section of the International Space Station. Features, used for prediction of the glacier last movement, are pointed out.
V. M. Kotlyakov, L. V. Desinov
openaire   +2 more sources

Representing moisture fluxes and phase changes in glacier debris cover using a reservoir approach [PDF]

open access: yes, 2014
Due to the complexity of treating moisture in supraglacial debris, surface energy balance models to date have neglected moisture infiltration and phase changes in the debris layer.
Essery, Richard   +17 more
core   +2 more sources

125 years of exploration and research at Gough's Cave (Somerset, UK) 125 ans d'exploration et de recherches à Gough's Cave (Somerset, Royaume‐Uni)

open access: yesJournal of the Royal Anthropological Institute, EarlyView.
Our understanding of the recolonization of northwest Europe in the period leading up to the Lateglacial Interstadial relies heavily on discoveries from Gough's Cave (Somerset, UK). Gough's Cave is the richest Late Upper Palaeolithic site in the British Isles, yielding an exceptional array of human remains, stone and organic artefacts, and butchered ...
Silvia M. Bello   +2 more
wiley   +1 more source

Glacier variations at Aru Co in western Tibet from 1971 to 2016 derived from remote-sensing data

open access: yesJournal of Glaciology, 2018
Twin glaciers collapsed in 2016 near Aru Co, western Tibet and caused extreme loss to human beings. In this study, we attempted to track the dynamics of glaciers in the region, for example the glacier area and mass changes in Aru Co for the period 1971 ...
ZHEN ZHANG   +5 more
doaj   +1 more source

Hydraulic impacts of glacier advance over a sediment bed [PDF]

open access: yes, 2006
A sedimentary sequence of till overlying a gravel aquifer was instrumented with water-pressure transducers prior to a small, anticipated surge of the margin of the glacier Breiðamerkurjökull in Iceland.
Zatsepin, Sergei, Boulton, Geoffrey
core   +1 more source

Amplification of Surface Topography during Surges of Tweedsmuir Glacier

open access: yes, 2021
The recent development and improvement of remote sensing sensor technology and processing techniques has expanded the spatiotemporal basis of glacier monitoring, where in situ measurements are limited.
Sharp, Meghan
core   +1 more source

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