Results 1 to 10 of about 63,437 (194)

Complex Greenland outlet glacier flow captured. [PDF]

open access: yesNat Commun, 2016
AbstractThe Greenland Ice Sheet is losing mass at an accelerating rate due to increased surface melt and flow acceleration in outlet glaciers. Quantifying future dynamic contributions to sea level requires accurate portrayal of outlet glaciers in ice sheet simulations, but to date poor knowledge of subglacial topography and limited model resolution ...
Aschwanden A, Fahnestock MA, Truffer M.
europepmc   +5 more sources

Mountain Glacier Flow Velocity Retrieval from Ascending and Descending Sentinel-1 Data Using the Offset Tracking and MSBAS Technique: A Case Study of the Siachen Glacier in Karakoram from 2017 to 2021

open access: yesRemote Sensing, 2023
Synthetic Aperture Radar images have recently been utilized in glacier surface flow velocity research due to their continuously improving imaging technology, which increases the resolution and scope of research.
Qian Liang, Ninglian Wang
doaj   +1 more source

Interactive movements of outlet glacier tongue and landfast sea ice in Lützow-Holm Bay, East Antarctica, detected by ALOS-2/PALSAR-2 imagery

open access: yesScience of Remote Sensing, 2022
The Shirase Glacier, one of the fastest-flowing outlet glaciers in East Antarctica, flows into a bay that is usually covered by landfast sea ice. Although the presence of landfast ice is considered to stabilize glacier tongue, quantitative assessments ...
Kazuki Nakamura   +3 more
doaj   +1 more source

Spatio-temporal flow variations driving heat exchange processes at a mountain glacier [PDF]

open access: yesThe Cryosphere, 2020
Multi-scale interactions between the glacier surface, the overlying atmosphere, and the surrounding alpine terrain are highly complex and force temporally and spatially variable local glacier energy fluxes and melt rates.
R. Mott   +3 more
doaj   +1 more source

Land- to lake-terminating transition triggers dynamic thinning of a Bhutanese glacier [PDF]

open access: yesThe Cryosphere, 2022
There have been rapid increases in both the number and expansion of the proglacial lakes across High Mountain Asia. However, the relationship between proglacial lakes and glacier dynamics remains unclear in the Himalayan region.
Y. Sato   +4 more
doaj   +1 more source

Flow velocities of Alaskan glaciers [PDF]

open access: yesNature Communications, 2013
Our poor understanding of tidewater glacier dynamics remains the primary source of uncertainty in sea level rise projections. On the ice sheets, mass lost from tidewater calving exceeds the amount lost from surface melting. In Alaska, the magnitude of calving mass loss remains unconstrained, yet immense calving losses have been observed.
Evan W, Burgess   +2 more
openaire   +2 more sources

Quasi-static granular flow of ice mélange [PDF]

open access: yes, 2018
We use Landsat 8 imagery to generate ice mélange velocity fields at Greenland’s three most productive outlet glaciers: Jakobshavn Isbræ, Helheim Glacier, and Kangerdlugssuaq Glacier.
Amundson, Jason M., Burton, J. C.
core   +2 more sources

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 Ötztal 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

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