Results 71 to 80 of about 1,024,948 (200)

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

open access: yesNature 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   +4 more
doaj   +1 more source

Spatio-Temporal Distribution of Supra-Glacial Ponds and Ice Cliffs on Verde Glacier, Chile

open access: yesFrontiers in Earth Science, 2021
Known for their important role in locally enhancing surface melt, supraglacial ponds and ice cliffs are common features on debris-covered glaciers. We use high resolution satellite imagery to describe pond-cliff systems and surface velocity on Verde ...
Thomas Loriaux, Lucas Ruiz
doaj   +1 more source

Recovery of Petermann Glacier Velocity from SAR Imagery Using a Spatiotemporal Hybrid Neural Network

open access: yesApplied Sciences
Numerous studies have demonstrated the potential of Synthetic Aperture Radar (SAR) in monitoring glacier velocity. However, owing to the complex dynamics of glaciers and the variability of their surface features, velocity fields derived from even short ...
Zongze Li   +3 more
doaj   +1 more source

Response of a marine-terminating Greenland outlet glacier to abrupt cooling 8200 and 9300 years ago [PDF]

open access: yes, 2011
Long-term records of Greenland outlet-glacier change extending beyond the satellite era can inform future predictions of Greenland Ice Sheet behavior. Of particular relevance is elucidating the Greenland Ice Sheet's response to decadal- and centennial ...
Greg S. Babonis   +13 more
core   +1 more source

Debris Emergence Elevations and Glacier Change

open access: yesFrontiers in Earth Science, 2021
Debris-covered glaciers represent potentially significant stores of freshwater in river basins throughout High Mountain Asia (HMA). Direct glacier mass balance measurements are extremely difficult to maintain on debris-covered glaciers, and optical ...
Joseph M. Shea   +3 more
doaj   +1 more source

Variations in the surface velocity of an alpine cirque glacier [PDF]

open access: yesJournal of Glaciology, 2018
ABSTRACTFollowing pioneering work in Norway, cirque glaciers have widely been viewed as rigidly rotating bodies. This model is incorrect for basin-filling cirque glaciers, as we have demonstrated at West Washmawapta Glacier, a small glacier in the Canadian Rocky Mountains.
J. W. SANDERS   +4 more
openaire   +2 more sources

Temporal fluctuations of siachen glacier velocity: a repeat pass sar interferometry based approach

open access: yes, 2021
Glacier velocity, the glacier's health indicator, is an emerging research interest in global warming among the scientific community over the current decade. As per scientific reports, due to their stable and advanced nature, the glaciers of Karakoram are
Sivaranjani Sivalingam   +4 more
core   +1 more source

Sediment motion and velocity in a glacier-fed stream [PDF]

open access: yesGeomorphology, 2017
Current understanding of coarse sediment transport (e.g. threshold for motion, travel length and virtual velocity) in mountain rivers is still quite limited, and even less is known about glacial streams. However, the hydrological characteristics of these systems (strong daily discharge fluctuations, high water turbidity) pose challenges to the use of ...
L. Mao, A. Dell'Agnese, F. Comiti
openaire   +3 more sources

Calving rates at tidewater glaciers vary strongly with ocean temperature [PDF]

open access: yes, 2015
TerraSAR-X data were provided by DLR (project OCE1503), and funded by the Conoco Phillips-Lundin Northern Area Program through the CRIOS project (Calving Rates and Impact on Sea level). A.L. and S.B.
Luckman, Adrian   +14 more
core   +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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