Results 31 to 40 of about 11,270 (214)

Joint geodetic and seismic analysis of surface crevassing near a seasonal glacier-dammed lake at Gornergletscher, Switzerland

Annals of Glaciology, 2019
Seasonal lake Gornersee forms at the confluence of Gornergletscher and Grenzgletscher, Switzerland, and experiences outburst floods annually in midsummer.
Louis Garcia, Karen Luttrell, Debi Kilb, Fabian Walter   +3 more
doaj   +1 more source

Radio-echo sounding and waveform modeling reveal abundant marine ice in former rifts and basal crevasses within Crary Ice Rise, Antarctica

Journal of Glaciology, 2021
Crary Ice Rise formed after the Ross Ice Shelf re-grounded ~1 kyr BP. We present new ice-penetrating radar data from two systems operating at center frequencies of 7 and 750 MHz that confirm the ice rise is composed of a former ice shelf buried by ...
Trevor R. Hillebrand, Howard Conway, Michelle Koutnik, Carlos Martín, John Paden, J. Paul Winberry   +5 more
doaj   +1 more source

Direct Observation of Mono-, Bi-, and Tri-layer Charge Density Waves in 1T-TaS_2 by Transmission Electron Microscopy without a Substrate [PDF]

, 2017
Charge-density-waves (CDW) which occur mainly in low-dimensional systems have a macroscopic wave function similar to superfluids and superconductors. Kosterlitz-Thouless (KT) transition is observed in superfluids and superconductors, but the presence of ...
Liu, Zheng, Nakatsugawa, Keiji, Sakabe, Daiki, Suenaga, Kazumoto, Tanda, Satoshi   +4 more
core   +2 more sources

Three-dimensional dynamic monitoring of crevasses based on deep learning and surface elevation reconstruction methods

International Journal of Applied Earth Observations and Geoinformation
The evolution of crevasses on ice shelves plays a pivotal role in maintaining their stability. Investigating the developmental pattern of crevasses on ice shelf surfaces necessitates long-term dynamic monitoring, high-precision automatic extraction ...
Qian Li, Jiachun An, Zhe Xing, Zemin Wang, Pei Jiang, Boya Yan, Yunsi Wu, Baojun Zhang   +7 more
doaj   +1 more source

Amazonian-aged fluvial system and associated ice-related features in Terra Cimmeria, Mars [PDF]

, 2016
The Martian climate throughout the Amazonian is widely believed to have been cold and hyper-arid, very similar to the current conditions. However, ubiquitous evidence of aqueous and glacial activity has been recently reported, including channels that can
Adeli, Solmaz, Fawdon, Peter, Hauber, Ernst, Jaumann, Ralf, Kleinhans, Maarten, Le Deit, Laetitia, Platz, Thomas   +6 more
core   +3 more sources

Crevasse initiation and history within the McMurdo Shear Zone, Antarctica

Journal of Glaciology, 2019
While large-scale observations of intensified fracture and rifting can be observed through remote-sensing observations, understanding crevasse initiation may best be achieved with small-scale observations in which crevasses can be directly observed. Here
Lynn Kaluzienski, Peter Koons, Ellyn Enderlin, Gordon Hamilton, Zoe Courville, Steven Arcone   +5 more
doaj   +1 more source

Tides modulate crevasse opening prior to a major calving event at Bowdoin Glacier, Northwest Greenland

Journal of Glaciology, 2020
Retreat of calving glaciers worldwide has contributed substantially to sea-level rise in recent decades. Mass loss by calving contributes significantly to the uncertainty of sea-level rise projections.
Eef van Dongen, Guillaume Jouvet, Andrea Walter, Joe Todd, Thomas Zwinger, Izumi Asaji, Shin Sugiyama, Fabian Walter, Martin Funk   +8 more
doaj   +1 more source

Tributary Glacier Surges: An Exceptional Concentration at Panmah Glacier, Karakoram Himalaya [PDF]

, 2007
Four tributaries of Panmah Glacier have surged in less than a decade, three in quick succession between 2001 and 2005. Since 1985, 13 surges have been recorded in the Karakoram Himalaya, more than in any comparable period since the 1850s.
Hewitt, Kenneth
core   +2 more sources

Aoraki Mount Cook: Environmental Change on an Iconic Mountaineering Route

Mountain Research and Development, 2018
Aoraki Mount Cook is New Zealand's highest mountain and a popular destination for climbers. This study combined historical accounts, photos, and geophysical surveys with modern-day spatial analysis, popular narratives, and interviews to explore how ...
Heather Purdie, Tim Kerr
doaj   +1 more source

Fifty-five years of Russian radio-echo sounding investigations in Antarctica

Annals of Glaciology, 2020
Russian (former Soviet) systematic studies of Antarctica by radio-echo sounding (RES) and ground-penetrating radar technique (GPR) were commenced in 1964.
Sergey Popov
doaj   +1 more source