Results 31 to 40 of about 125,497 (294)

Air-temperature control on diurnal variations in microseismicity at Laohugou Glacier No. 12, Qilian Mountains

Annals of Glaciology, 2019
We conducted a 9-d seismic experiment in October 2015 at Laohugou Glacier No. 12. We identified microseismic signals using the short-term/long-term average trigger algorithm at four stations and classified them as long and short-duration events based on ...
Tao Zhang, Yuqiao Chen, Min Ding, Zhongyan Shen, Yuande Yang, Qingsheng Guan   +5 more
doaj   +1 more source

Ground penetrating radar in temperate ice: englacial water inclusions as limiting factor for data interpretation

Journal of Glaciology, 2023
Ground penetrating radar (GPR) has been extensively used in glaciology to infer glacier's ice thickness, liquid water content, water drainage pathways, and other properties.
Christophe Ogier, Dirk-Jan van Manen, Hansruedi Maurer, Ludovic Räss, Marian Hertrich, Andreas Bauder, Daniel Farinotti   +6 more
doaj   +1 more source

Geophysics, Colorado School of Mines, Spring 2001

, 2022
Newsletter of the Geophysics Department at Colorado School of ...

core  

Geophysics, Colorado School of Mines, Spring 2015

, 2022
Newsletter of the Geophysics Department at Colorado School of ...

core  

Increasing contribution of grain boundary compliance to polycrystalline ice elasticity as temperature increases

Journal of Glaciology, 2018
Measured elastic stiffnesses of ice polycrystals decrease with increasing temperature due to a decrease in grain boundary stiffness with increasing temperature.
COLIN M. SAYERS
doaj   +1 more source

Geophysics, Colorado School of Mines, Spring 2006

, 2022
Newsletter of the Geophysics Department at Colorado School of ...

core  

Debris cover and surface melt at a temperate maritime alpine glacier: Franz Josef Glacier, New Zealand [PDF]

, 2012
Melt rates on glaciers are strongly influenced by the presence of supraglacial debris, which can either enhance or reduce ablation relative to bare ice.
Brook, Martin S., Winkler, S, Hagg, W, Hagg, Wilfried, Winkler, Stefan, Brook, M. S.   +5 more
core   +1 more source

Imaging englacial and subglacial drainage networks with UAV-based 3D GPR

Journal of Glaciology
Meltwater drainage through glaciers strongly influences ice dynamics and related hazards, yet detailed observations of active englacial and subglacial networks remain scarce due to challenges in direct observation.
Johanna Klahold, Gabriela Clara Racz, Bastien Ruols, James Irving   +3 more
doaj   +1 more source

Seismic observations of crevasse growth following rain-induced glacier acceleration, Haupapa/Tasman Glacier, New Zealand

Annals of Glaciology, 2019
Changing rates of water input can affect both the flow of glaciers and ice sheets and their propensity to crevasse. Here we examine geodetic and seismic observations during two substantial (10–18-times background velocity) rain-induced glacier ...
Samuel Taylor-Offord, Huw Horgan, John Townend, J. Paul Winberry   +3 more
doaj   +1 more source

The precision of radar-derived subglacial bed topography: a case study from Pine Island Glacier, Antarctica

Annals of Glaciology, 2020
Recent advances in the measurement of bedforms beneath active ice streams have been made using ground-based grid profiling using impulse radar systems operating with centre frequencies in the 3–5 MHz range.
Edward C. King
doaj   +1 more source