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Totten Glacier subglacial hydrology determined from geophysics and modeling
Earth and Planetary Science Letters, 2020Aurora Subglacial Basin (ASB), which feeds Totten Glacier, is a marine basin lying below sea level and contains up to 3.5m of global sea level equivalent. Rates of future sea level rise from this area are primarily dependent on the stability of Totten Ice Shelf and the controls on ice flow dynamics upstream of the grounding line, both of which may be ...
C.F. Dow +5 more
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Multidisciplinary geophysical investigations over an alpine rock glacier
GEOPHYSICS, 2016We have performed a multidisciplinary geophysical survey combined with geotechnical investigations over a degrading alpine rock glacier. A dense grid of helicopter-borne ground-penetrating radar data allowed the 3D shape of the bedrock topography and the gross transition from ice-rich to ice-poor parts of the rock glacier to be delineated. The bedrock
Kaspar Merz +5 more
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Integrated geophysical measurement on the Hallstatter glacier (Austria)
54th EAEG Meeting, 1992Study of glaciers may contribute to the solution of some scientific problems which have become important recently. More accurate determination of the size and geometry of glaciers may result in a more accurate estimation of the potential fresh water reserves and of impacts of climatic changes.
G. Detzky +9 more
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Geophysical Characterization of the Furggwanghorn Rock Glacier, Switzerland
Proceedings, 2012Degradation of alpine permafrost due to changing mean annual air temperatures can act as trigger for landslides and other ground instabilities. For a better understanding of the underlying thermo-hydromechanical processes an interdisciplinary research project has been set up.
Kaspar Merz +3 more
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Measurement of glacier geophysical properties from insar wrapped phase
IEEE Transactions on Geoscience and Remote Sensing, 2003A method is presented for calculating longitudinal glacier strain rates directly from the wrapped phase of an interferometric synthetic aperture radar (InSAR) interferogram assuming the ice flow path is known. This technique enables strain rates to be calculated for scenes lacking any velocity control points or areas within a scene where the phase is ...
R.R. Forster +3 more
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Eos, Transactions American Geophysical Union, 1933
To consider the relation of glaciation to other branches of geophysics we must first develop the cause of glaciation; and this will require us to recall some ideas which, though elementary, are fundamental, and it is by keeping fundamental principles in mind that we can build most securely the superstructure.The first requisite for glaciation is the ...
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To consider the relation of glaciation to other branches of geophysics we must first develop the cause of glaciation; and this will require us to recall some ideas which, though elementary, are fundamental, and it is by keeping fundamental principles in mind that we can build most securely the superstructure.The first requisite for glaciation is the ...
openaire +1 more source
Geophysical survey of Johnsons Glacier (Antarctica): Comparing seismic and RES data
SEG Technical Program Expanded Abstracts 2000, 2000Seismic and radio-echo sounding data have been acquired along coincident profiles at the temperate Johnsons Glacier (Livingston Island, South Shetland Islands, Antarctica). Seismic data have been processed and the results provide information about ice-thickness and bedrock topography.
Beatriz Benjumea +5 more
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Science, 1964
From physical measurements on glaciers and experimental studies of ice properties a framework of concept and theory is being built which bids fair to place glaciers among the more quantitatively understandable phenomena in the earth sciences. Measurements of flow velocity, deformation and stress, ice thickness and channel configuration, temperature ...
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From physical measurements on glaciers and experimental studies of ice properties a framework of concept and theory is being built which bids fair to place glaciers among the more quantitatively understandable phenomena in the earth sciences. Measurements of flow velocity, deformation and stress, ice thickness and channel configuration, temperature ...
openaire +2 more sources
Internal structure and trend of glacier change assessed by geophysical investigations
Environmental Earth Sciences, 2012Ground-penetrating radar (GPR) is a useful tool for mapping the thickness, morphology and structure of alpine glaciers. Englacial information obtained during a field survey of the Koxkar Glacier in Tian Shan, China, in June 2008 was retrieved from GPR profile data.
Wu Zhen +3 more
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Geophysical parameters estimation with TerraSAR-X of outlet glaciers in the Transantarctic Mountains
2012 IEEE International Geoscience and Remote Sensing Symposium, 2012We discuss TerraSAR-X observations of three Transantarctic Mountain (TAM) outlet glaciers: Byrd, Nimrod and Beardmore. High resolution TerraSAR-X data acquired over the area in late 2009 and late 2010 using left looking mode were processed to generate detailed 2D ice velocity maps by means of speckle tracking.
Floricioiu, Dana +3 more
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