Results 11 to 20 of about 1,525 (283)
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 data analysis of the Shackleton Ice Shelf [PDF]
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
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Radio echo sounding survey along the profile of the JARE-43 seismic exploration on the Mizuho Plateau, East Antarctica [PDF]
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 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 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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Airborne radio echo sounding on the Shirase Glacier and its drainage basin, East Antarctica [PDF]
Antarctic Record, 1981 Airborne radio echo sounding carried out on the Shirase Glacier and its drainage basin in January 1980 is described. The new sounder (NIPR-A) was operated at 179 MHz on board a Pilatus Porter PC-6.
Makoto Wada, Shinji Mae
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A Digital Radio Echo-Sounding and Navigation Recording System [PDF]
Annals of Glaciology, 1987 The Scott Polar Research Institute (SPRI) Mk IV 60 MHz radio echo-sounding (RES) system has proven itself to be a most effective and versatile tool in glaciology. During the last 15 years, it has been used from a variety of platforms, both surface and airborne, and over a range of ice thicknesses from 4000 m to 100 m.
M.R. Gorman, A.P.R. Cooper
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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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