Results 11 to 20 of about 1,275 (251)
Flow velocities of Alaskan glaciers [PDF]
Nature 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
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Ice flow velocity as a sensitive indicator of glacier state [PDF]
, 2018 Abstract. 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 series of glacier dynamics exist with the potential to serve as long-term indicators of glacier ...
Martin Stocker-Waldhuber +3 more
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Science 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
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Monitoring ice flow velocity of Petermann glacier combined with Sentinel-1 and −2 imagery
International 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
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Long‐term impact of the proglacial lake Jökulsárlón on the flow velocity and stability of Breiðamerkurjökull glacier, Iceland [PDF]
Earth Surface Processes and Landforms, 2020 AbstractProglacial lakes are becoming ubiquitous at the termini of many glaciers worldwide due to continued climate warming and glacier retreat, and such lakes have important consequences for the dynamics and future stability of these glaciers. In light of this, we quantified decadal changes in glacier velocity since 1991 using satellite remote sensing
Nathaniel R. Baurley +2 more
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Nature 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
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EXTRACTION OF ICE FLOW VELOCITY BY COMBINATION OF DINSAR AND OFFSET TRACKING METHODS FOR PINE GLACIER, WEST ANTARCTICA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2022 West Antarctica is the main contributor to global sea level rise at present and in the coming decades, since it occupies 80% of mass loss in Antarctica.
K. Lin +7 more
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Remote Sensing, 2020 Monitoring glacier flow is vital to understand the response of mountain glaciers to environmental forcing in the context of global climate change. Seasonal and interannual variability of surface velocity in the temperate glaciers of the Parlung Zangbo ...
Jing Zhang +3 more
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Long-term records of glacier surface velocities in the Ötztal Alps (Austria) [PDF]
Earth 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
Temporal variations in flow velocity at Finsterwalderbreen, a Svalbard surge-type glacier [PDF]
Annals of Glaciology, 2005 AbstractInter- and intra-annual velocity variations are well known on alpine glaciers, but their importance for Arctic glaciers has only been recognized more recently. This paper presents flow velocity data from Finsterwalderbreen, a 35 km2 polythermal surge-type glacier in southern Svalbard that is presently ∼100 years into its quiescent phase.
Anne-Marie Nuttall, Richard Hodgkins
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