Results 31 to 40 of about 1,807 (161)

Reconstruction of Petermann glacier velocity time series using multi-source remote sensing images

International Journal of Applied Earth Observations and Geoinformation
Glacier velocity is one of the crucial parameters in the research of glacier dynamics. Synthetic aperture radar (SAR), as an active microwave sensor, represents a common method to monitor glacier velocity.
Zongze Li, Jinsong Chong, Yawei Zhao, Lijie Diao   +3 more
doaj   +1 more source

Diurnal fluctuations of glacier surface velocity observed with terrestrial radar interferometry at Laohugou No. 12 Glacier, western Qilian mountains, China

Journal of Glaciology, 2019
Measurements of short-interval variations in glacier surface velocity, which contribute to our understanding of ice motion mechanisms, remain scarce on the Tibetan Plateau.
LIN LIU, LIMING JIANG, YONGLING SUN, HANSHENG WANG, YAFEI SUN, HOUZE XU   +5 more
doaj   +1 more source

Ice-marginal lake hydrology and the seasonal dynamical evolution of Kennicott Glacier, Alaska

Journal of Glaciology, 2020
Glacier basal motion is responsible for the majority of ice flux on fast-flowing glaciers, enables rapid changes in glacier motion and provides the means by which glaciers shape alpine landscapes. In an effort to enhance our understanding of basal motion,
William H. Armstrong, Robert S. Anderson
doaj   +1 more source

The Surface Velocity of The Yakataga Glacier Alaska [PDF]

Journal of Glaciology, 1957
Abstract The Yakataga Glacier occupies a steep-walled valley in the Robinson Mountains on the north coast of the Gulf of Alaska. The main trunk of the glacier descends from 1130 to 150 m. in a distance of 21 km. A rock fall at the head of the glacier formed a moraine of distinctive shape which advanced at an average rate of 114 m./yr.
openaire   +1 more source

Variations in Velocity of Athabasca Glacier with Time [PDF]

Journal of Glaciology, 1964
AbstractThe physical setting of the Athabasca Glacier is described. Ablation of ice from the glacier contributes roughly 40 per cent of the annual outflow from the lake at the terminus. Variations of ice velocity, measured over periods ranging from a week to four months, are discussed.
openaire   +1 more source

Icequakes and Large Shear Wave Velocity Drop in the Kuoqionggangri Glacier of Tibetan Plateau Observed with Fiber Optic Seismometer Array

Remote Sensing, 2023
We developed a kind of fiber optic seismometer array for a high mountain glacier and first tested it on the Kuoqionggangri Glacier in the Tibetan Plateau.
Yanan Li, Wenzhu Huang, Guohui Li, Wei Yang, Xiaolong Zhang, Jiule Li, Wentao Zhang, Baiqing Xu   +7 more
doaj   +1 more source

An iterative scheme for determining glacier velocities and stresses [PDF]

Journal of Glaciology, 2008
AbstractThere are no direct methods to measure the boundary condition at the base of a glacier. Here, we propose a method that works by iteratively changing boundary conditions until a satisfactory fit to surface observations is obtained. The method is an accelerated version of one known as Kozlov–Maz’ya iteration.
David Maxwell, Martin Truffer, Sergei Avdonin, Martin Stuefer   +3 more
openaire   +1 more source

Dynamic Monitoring of Debris-Covered Glacier Surface Velocity and Ice Thickness of Mt.Tomur, Tian Shan, China

Remote Sensing, 2022
The Mt.Tomur glaciers, in the Tian Shan mountains of Western China, are usually debris-covered, and due to climate change, glacial hazards are becoming more frequent in this region.
Changbin Bai, Feiteng Wang, Lin Wang, Chunhai Xu, Xiaoying Yue, Shujing Yang, Puyu Wang, Yanqun Bi, Haining Wei   +8 more
doaj   +1 more source

Diagnostic and prognostic modeling of glacier dynamics and the driving factors in the Qilian Mountains, China

Journal of Hydrology: Regional Studies
Study region: Qiyi Glacier in the Qilian Mountains, China. Study focus: Glacier flow is one of the important processes in the glacier development and evolution.
Sheng Wang, Xingyu Wang, Yuzhe Wang, Tandong Yao, Jianchen Pu, Jinfeng Wang   +5 more
doaj   +1 more source

Helheim Glacier ice velocity variability responds to runoff and terminus position change at different timescales

Nature Communications, 2022
Factors driving ice flow variability in Greenland vary by timescale. At seasonal scale, Helheim Glacier ice velocity responds most strongly to meltwater runoff. Glacier terminus position drives velocity variability at longer time scales.
Lizz Ultee, Denis Felikson, Brent Minchew, Leigh A. Stearns, Bryan Riel   +4 more
doaj   +1 more source