Results 21 to 30 of about 5,177,233 (350)

Longitudinal surface structures (flowstripes) on Antarctic glaciers [PDF]

open access: yesThe Cryosphere, 2012
Longitudinal surface structures ("flowstripes") are common on many glaciers but their origin and significance are poorly understood. In this paper we present observations of the development of these longitudinal structures from four different Antarctic ...
N. F. Glasser, G. H. Gudmundsson
doaj   +1 more source

The Spatio-Temporal Patterns of Glacier Activities in the Eastern Pamir Plateau Investigated by Time Series Sub-Pixel Offsets From Sentinel-2 Optical Images

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
The eastern Pamir Plateau, with a mean altitude of 5000 m, forms a large-scale glacier region with a size of 2054 km2 that serves as an important environmental climate condition for central Asia. In this article, we estimated the spatio-temporal patterns
Jue Zhang   +3 more
doaj   +1 more source

Long-term records of glacier surface velocities in the Ă–tztal Alps (Austria) [PDF]

open access: yesEarth System Science Data, 2019
Climatic forcing affects glacier mass balance, which causes changes in ice flow dynamics and glacier length changes on different timescales. Mass balance and length changes are operationally used for glacier monitoring, whereas only a few time series of ...
M. Stocker-Waldhuber   +4 more
doaj   +1 more source

Investigating the Intra-Annual Dynamics of Kunlun Glacier in the West Kunlun Mountains, China, From Ascending and Descending Sentinel-1 SAR Observations

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Monitoring glacier dynamics is an effective approach for quantifying the response of the glaciers in cold arid mountainous areas to climate change. However, the quantification of short-term flow dynamics of the mountain glaciers in cold-dry climates has ...
Yueling Shi   +6 more
doaj   +1 more source

SAR-derived flow velocity and its link to glacier surface elevation change and mass balance

open access: yes, 2021
Modern remote sensing techniques, such as Synthetic Aperture Radar (SAR), can measure the direction and intensity of glacier flow. Yet the question remains as to what these measurements reveal about glaciers' adjustment to the warming climate.
S. Samsonov, K. Tiampo, R. Cassotto
semanticscholar   +1 more source

A note on the snout

open access: yesJournal of Glaciology, 2023
The shallow ice approximation for glaciers and ice sheets is a degenerate model in which the ice surface slope at the margin may be infinite. This result is due to the neglect of the otherwise small longitudinal stress terms.
A.C. Fowler
doaj   +1 more source

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

open access: yes, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Ian Willis   +9 more
core   +1 more source

Inferring time-dependent calving dynamics at Helheim Glacier

open access: yesJournal of Glaciology, 2023
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   +2 more
doaj   +1 more source

Intra-annual and intra-seasonal flow dynamics of a High Arctic polythermal valley glacier [PDF]

open access: yes, 2002
Measurements of surface dynamics on polythermal John Evans Glacier, Nunavut, Canada, over two winter periods and every 7-10 days throughout two melt seasons (June-July 2000, 2001) provide new insight into spatio-temporal patterns of High Arctic glacier ...
Bingham, R.G.   +9 more
core   +1 more source

Future high-mountain hydrology: a new parameterization of glacier retreat [PDF]

open access: yesHydrology and Earth System Sciences, 2010
Global warming is expected to significantly affect the runoff regime of mountainous catchments. Simple methods for calculating future glacier change in hydrological models are required in order to reliably assess economic impacts of changes in the water ...
M. Huss   +3 more
doaj   +1 more source

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