Glacier Flexure and the Position of Grounding Lines: Measurements By Tiltmeter on Rutford Ice Stream, Antarctica
نویسندگان
چکیده
منابع مشابه
Radar surveys of the Rutford Ice Stream onset zone, West Antarctica: indications of flow (in)stability?
We present 1 and 100MHz ground-based radar data from the onset region of Rutford Ice Stream, West Antarctica, which indicate the form and internal structure of isochrones. In the flowparallel lines, modelled isochrone patterns reproduce the gross pattern of the imaged near-surface layers, assuming steady-state flow velocity from GPS records and the current accumulation rate for the last 200 yea...
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In many ice streams, basal resistance varies in space and time due to the dynamically evolving properties of subglacial till. These variations can cause internally generated oscillations in ice-stream flow. However, the potential for such variations in basal properties is not considered by conventional theories of grounding-line stability on retrograde bed slopes, which assume that bed properti...
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We d escribe the calibration and interpretation of interferograms generated from ERS-I synthetic ape rture rad a r Single Loo k Complex (SAR .SLC) images of the Rutford Ice Stream a rea. Ground surveys provide over 100 tie-points with which to optimise the interferometric baselines that sepa rate nominall y repeated satellite orbits. Covariant tie-point errors are dealt with by constructi ng an...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 1984
ISSN: 0260-3055,1727-5644
DOI: 10.1017/s0260305500003682