Results 31 to 40 of about 1,275 (251)

Modeling the Trooz Glacier’s movement using air temperature data and satellite SAR observations in 2015‒2022

open access: yesУкраїнський антарктичний журнал, 2023
The aim of this study is modeling the dependence of maximum velocity of the Trooz Glacier (Kyiv Peninsula, West Antarctica) on air temperature. For this purpose, we processed a time series of meteorological observations at the Akademik Vernadsky station ...
K. Tretyak, D. Kukhtar
doaj   +1 more source

Sliding Relations for Glacier Slip With Cavities Over Three‐Dimensional Beds

open access: yesGeophysical Research Letters, 2020
Results of glacier flow models and associated estimates of future sea level rise depend sensitively on the prescribed relation between shear stress and slip velocity at the glacier bed.
Christian Helanow   +3 more
doaj   +1 more source

Velocity, Stress and Temperature Solutions for Rectilinear Glacier Flows with Sliding at the Bed [PDF]

open access: yesGeophysical Journal of the Royal Astronomical Society, 2009
Summary A flexible new method for iteratively solving the equations of rectilinear glacier flow is used to compute solutions for non-isothermal flow with viscous heat generation (a polar glacier), and isothermal flow with stressdependent sliding velocity (a temperate glacier).
openaire   +1 more source

Uncertainty of Satellite-Derived Glacier Flow Velocities in a Temperate Alpine Setting (Juneau Icefield, Alaska)

open access: yesRemote Sensing, 2023
Cross-correlation of image-pairs derived from both optical and synthetic aperture radar satellite imagery is the most common technique for measuring glacier flow velocity and quantifying the dynamics and discharge of glaciers. While the technique has been shown to be effective on polar ice sheets, the accuracy of satellite-derived velocities in ...
Joshua T. Kelly   +2 more
openaire   +2 more sources

Factors controlling the accelerated expansion of Imja Lake, Mount Everest region, Nepal

open access: yesAnnals of Glaciology, 2016
This study explores the link between area increase of Imja Tsho (Lake) and changes of Imja Glacier (area ~25km2) under the influence of climate change using multitemporal satellite imagery and local climate data. Between 1962 and 2013, Imja Lake expanded
Sudeep Thakuri   +4 more
doaj   +1 more source

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Operational Processing of Big Satellite Data for Monitoring Glacier Dynamics: Case Study of Muldrow Glacier

open access: yesRemote Sensing, 2022
Frequent acquisition of Synthetic Aperture Radar (SAR) data by the European Sentinel-1 satellites provides an opportunity for monitoring the dynamics of worldwide glaciers.
Sergey V. Samsonov
doaj   +1 more source

Estimation of Glacier Thickness From Surface Mass Balance and Ice Flow Velocities: A Case Study on Argentière Glacier, France [PDF]

open access: yesFrontiers in Earth Science, 2018
Glacier thickness distribution is a prerequisite to simulate the future of glaciers. Inaccurate thicknesses may lead to significant uncertainties in the timing of future changes to glaciers and their consequences for water resources or sea level rise. Unfortunately, glacier thickness distribution is rarely measured and consequently has to be estimated.
Rabatel, Antoine   +3 more
openaire   +4 more sources

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

open access: yesJournal 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   +5 more
doaj   +1 more source

Enhanced Wide-Area Glacier Velocity Monitoring in Svalbard via Synthetic Aperture Radar Offset Tracking Noise Suppression

open access: yesApplied Sciences
Glacier movement is an important indicator of climate change, reflecting the quality and state changes in glacier migration and mass balance in the context of global warming.
Honglei Yang   +4 more
doaj   +1 more source

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