Results 11 to 20 of about 977,403 (284)
Radio Echo Sounding: Brine Percolation Layer [PDF]
Journal of Glaciology, 1973 Abstract An abrupt change in radio echo sounding travel time was observed on the ice shelf near McMurdo station, Antarctica, and was mapped by a zig-zag traverse. This boundary corresponds to the horizontal extent of brine penetration into the edge of the ice shelf.
John W. Clough
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Radio Echo Sounding on a Valley Glacier in East Greenland [PDF]
Journal of Glaciology, 1973 Abstract Although radio echo sounding equipment has been used with success for measuring the thickness of ice sheets in the Arctic and Antarctic, a valley glacier poses the additional problems of echoes from the valley walls, which may obscure the bottom echoes, and a high attenuation of radio waves in the ice.
J. L. Davis +2 more
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Radio echo sounding data analysis of the Shackleton Ice Shelf
Annals of Geophysics, 2010 In this study, our initial results are presented for the interpretation of the radio echo sounding data collected over the Shackleton Ice Shelf and adjacent ice sheet (East Antarctica) during the 2003/2004 Australian-Italian expedition.
James A. Baskaradas +6 more
doaj +2 more sources
Antarctic Record, 2003 A seismic exploration was conducted in the austral summer of 2001-2002 by the 43rd Japanese Antarctic Research Expedition (JARE-43) on the Mizuho Plateau, East Antarctica.
Masamitsu Takada +4 more
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Radio Echo Sounding of Horizontal Layers in Ice [PDF]
Journal of Glaciology, 1973 Radio echo-sounding surveys of Antarctica and Greenland have revealed extensive layering within the ice. Formulae for the effective reflection coefficient, when viewed by a pulsed radar, are derived for isolated or multiple randomly spaced layers.
C. H. Harrison
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A compact lightweight multipurpose ground-penetrating radar for glaciological applications [PDF]
, 2011 We describe a compact lightweight impulse radar for radio-echo sounding of subsurface structures designed specifically for glaciological applications. The radar operates at frequencies between 10 and 75 MHz.
Frolovskiy, K. +4 more
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Journal of Glaciology, 2022 During the past 20 years, multi-channel radar emerged as a key tool for deciphering an ice sheet's internal architecture. To assign ages to radar reflections and connect them over large areas in the ice sheet, the layer genesis has to be understood on a ...
Seyedhamidreza Mojtabavi +9 more
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Penetration of Antarctic subglacial lakes by VHF electromagnetic pulses: Information on the depth and electrical conductivity of basal water bodies [PDF]
, 1999 Owing to the high level of absorption of very high frequency radio waves in water, previous investigators of airborne radio echo sounding (RES) data from Antarctica have assumed that the depth of subglacial lakes cannot be measured directly by this ...
Martin J. Siegert +3 more
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Лëд и снег, 2021 Over the last decades, glaciers on Svalbard were shrinking in response to the current climate change. Most of them decreased in size, area, and surface height with a stable negative or even accelerated changes in the mass balance.
A. L. Borisik +4 more
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Airborne radar evidence for tributary flow switching in Institute Ice Stream, West Antarctica: implications for ice sheet configuration and dynamics [PDF]
, 2015 Despite the importance of ice streaming to the evaluation of West Antarctic Ice Sheet (WAIS) stability we know little about mid- to long-term dynamic changes within the Institute Ice Stream (IIS) catchment.
Martin J. Siegert +23 more
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