Results 11 to 20 of about 3,955,846 (280)

Creep-Velocity Bounds and Glacier-Flow Problems [PDF]

open access: yesJournal of Glaciology, 1967
A general result due to Martin can be used to find upper and lower bounds on velocities in steady-creep problems. This method can be applied to glacier flow if ice can be assumed to satisfy a powerlaw stress–strain-rate relation.
Andrew C. Palmer
core   +3 more sources

The Application of GPS in Glacier Flow Velocity: A Case Study of Qiyi Glacier

open access: yesApplied Mechanics and Materials, 2011
Surface flow velocity is a key parameter of glacier kinetic theories study. With the help of GPS, glacier surface flow velocity research improved convenient and accurate.
Zhe Fan Jing, Li Liu, Xiu Juan Zhang
core   +2 more sources

On the Secular Variation of Ice Flow Velocity at Lewis Glacier, Mount Kenya, Kenya [PDF]

open access: yesJournal of Glaciology, 1982
Measurements at various epochs in the course of the twentieth century indicate a slowing down of surface ice flow velocity. This is consistent with the numerical modeling of the secular glacier recession, which furthermore shows a gradual upward shift of
Phillip Kruss, Stefan Hastenrath
core   +3 more sources

Continued Decrease of Ice-Flow Velocity at Lewis Glacier, Mount Kenya, East Africa [PDF]

open access: yesJournal of Glaciology, 1987
Our earlier monitoring program on Lewis Glacier, Mount Kenya, indicated a slow-down of the ice flow to January 1982, while based on the numerical modeling of the ice dynamics a further drastic decrease of the ice flow was predicted from the 1978 to the ...
Stefan Hastenrath
core   +3 more sources

Ice flow velocity as a sensitive indicator of glacier state [PDF]

open access: yes, 2018
. Climatic forcing affects glacier length changes, mass balance and ice flow dynamics on different time scales and also dependent on topography. The first two of these parameters are operationally used for glacier monitoring, whereas only a few time ...
Michael Kuhn   +3 more
core   +4 more sources

Satellite-Derived Annual Glacier Surface Flow Velocity Products for the European Alps, 2015–2021

open access: yesData, 2023
Documenting glacier surface flow velocity from a longer-term perspective is highly relevant to evaluate the past and current state of glaciers worldwide.
Antoine Rabatel   +3 more
doaj   +5 more sources

Flow and structure in a dendritic glacier with bedrock steps [PDF]

open access: yesJournal of Glaciology, 2017
We analyse ice flow and structural glaciology of Shackleton Glacier, a dendritic glacier with multiple icefalls in the Canadian Rockies. A major tributary-trunk junction allows us to investigate the potential of tributaries to alter trunk flow and ...
HESTER JISKOOT   +2 more
doaj   +2 more sources

The use of terrestrial monoscopic time-lapse cameras for surveying glacier flow velocity

open access: yesCold Regions Science and Technology
Glacier flow velocity is crucial information to assess the impact of global warming on glaciers since it is related to the ice thickness, its variations provide information on mass balance and, in general, on the current state of glacier “health ...
Troilo F.   +5 more
core   +2 more sources

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

Monitoring ice flow velocity of Petermann glacier combined with Sentinel-1 and −2 imagery

open access: yesInternational Journal of Applied Earth Observation and Geoinformation, 2023
Synthetic Aperture Radar (SAR) images are commonly used to monitor glacier flow velocity at Greenland Ice Sheet (GrIS). However, offset-tracking with SAR imagery in summer usually show poor quality because the rapid ice surface freezing-melting cycles contaminating the surface backscattering characteristic, while optical images are less sensitive to ...
Gang Li   +5 more
openaire   +2 more sources

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