Results 61 to 70 of about 120,471 (247)

Buoyant calving and ice-contact lake evolution at Pasterze Glacier (Austria) in the period 1998–2019 [PDF]

The Cryosphere, 2021
Rapid growth of proglacial lakes in the current warming climate can pose significant outburst flood hazards, increase rates of ice mass loss, and alter the dynamic state of glaciers. We studied the nature and rate of proglacial lake evolution at Pasterze
A. Kellerer-Pirklbauer, M. Avian, D. I. Benn, F. Bernsteiner, P. Krisch, C. Ziesler   +5 more
doaj   +1 more source

Regional passive seismic monitoring reveals dynamic glacier activity on Spitsbergen, Svalbard [PDF]

Polar Research, 2015
Dynamic glacier activity is increasingly observed through passive seismic monitoring. We analysed near-regional-scale seismicity on the Arctic archipelago of Svalbard to identify seismic icequake signals and to study their spatial–temporal distribution ...
Andreas Köhler, Christopher Nuth, Johannes Schweitzer, Christian Weidle, Steven J. Gibbons   +4 more
doaj   +1 more source

Meltwater Intrusions Reveal Mechanisms for Rapid Submarine Melt at a Tidewater Glacier [PDF]

, 2019
Submarine melting has been implicated as a driver of glacier retreat and sea level rise, but to date melting has been difficult to observe and quantify. As a result, melt rates have been estimated from parameterizations that are largely unconstrained by ...
Amundson, Jason M., Jackson, R. H., Kienholtz, C., Motyka, R. J., Nash, J. D., Pettit, E. C., Skyllingstad, E., Sutherland, D. A., Winters, D.   +8 more
core   +1 more source

Calving controlled by melt-under-cutting: detailed calving styles revealed through time-lapse observations

Annals of Glaciology, 2019
We present a highly detailed study of calving dynamics at Tunabreen, a tidewater glacier in Svalbard. A time-lapse camera was trained on the terminus and programmed to capture images every 3 seconds over a 28-hour period in August 2015, producing a ...
Penelope How, Kristin M. Schild, Douglas I. Benn, Riko Noormets, Nina Kirchner, Adrian Luckman, Dorothée Vallot, Nicholas R. J. Hulton, Chris Borstad   +8 more
doaj   +1 more source

The slow advance of a calving glacier: Hubbard Glacier, Alaska, U.S.A. [PDF]

Annals of Glaciology, 2003
AbstractHubbard Glacier is the largest tidewater glacier in North America. In contrast to most glaciers in Alaska and northwestern Canada, Hubbard Glacier thickened and advanced during the 20th century. This a typical behavior is an important example of how insensitive to climate a glacier can become during parts of the calving glacier cycle.
Dennis C. Trabant, Robert M. Krimmel, Keith A. Echelmeyer, Sandra L. Zirnheld, Daniel H. Elsberg   +4 more
openaire   +1 more source

Underwater noise from glacier calving: Field observations and pool experiment.

Journal of the Acoustical Society of America, 2020
The underwater noise emission from glacier calving is investigated by integrating acoustic and photographic observations made in a glacial bay and model pool. Similarities in the impact noise in these two settings are identified.
O. Głowacki
semanticscholar   +1 more source

CALVING DYNAMICS DERIVED FROM SATELLITE SAR DATA IN SUPPORT OF MASS BALANCE ESTIMATIONS IN LANGE GLACIER, ANTARCTICA [PDF]

ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
We present calving flux, calving rate, frontal retreat and volume change rate results in Lange Glacier from 2015 to 2017, including also velocity calculations in 2015, 2017 and 2018.
E. Johnson, E. Johnson, D. Floricioiu, E. Schwalbe, R. Koschitzki, H.-G. Maas, C. Cardenas, G. Casassa   +7 more
doaj   +1 more source

Inferring time-dependent calving dynamics at Helheim Glacier

Journal of Glaciology, 2022
We perform Bayesian inference of the parameters of a time-dependent model of ice flow and calving at Helheim Glacier, East Greenland. We find that, while a time-independent calving parameterization can recover the mean observed terminus position, such a ...
Jacob Downs, D. Brinkerhoff, Mathieu Morlighem   +2 more
semanticscholar   +1 more source

Effect of topography on subglacial discharge and submarine melting during tidewater glacier retreat. [PDF]

, 2017
-We explored secular variations in subglacial discharge and submarine melting with an idealized model -Subglacial discharge increases as tidewater glaciers retreat along retrograde beds -Submarine melting depends on subglacial discharge and ...
Amundson, Arendt, Arimitsu, Arneborg, Aðalgeirsdóttir, Benn, Carroll, Carroll, Cowan, Cowton, Cuffey, Echelmeyer, Enderlin, Fried, Harrison, Hock, Holland, Howat, Huss, Jackson, Jansson, Jenkins, Kamb, Luckman, Lydersen, McNabb, Meier, Meire, Mortensen, Motyka, Motyka, Motyka, Motyka, Nick, Nick, O'Leary, O'Neel, Pfeffer, Podrasky, Post, Rignot, Rignot, Roe, Schoof, Slater, Slater, Straneo, Truffer, Urbanski, Veen, Veen, Veen   +51 more
core   +1 more source

Assessment of glacial-earthquake source parameters

Journal of Glaciology, 2017
Glacial earthquakes are slow earthquakes of magnitude M~5 associated with major calving events at near-grounded marine-terminating glaciers. These globally detectable earthquakes provide information on the grounding state of outlet glaciers and the ...
STEPHEN A. VEITCH, MEREDITH NETTLES
doaj   +1 more source