Results 11 to 20 of about 1,133,916 (282)

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
core   +3 more sources

Radio echo sounding survey along the profile of the JARE-43 seismic exploration on the Mizuho Plateau, East Antarctica

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, Shigeru Toda, Daisuke Kamiya, Takeshi Matsushima, Hiroki Miyamachi   +4 more
doaj   +2 more sources

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, Carla Bottari, Ignazio Ezio Tabacco, Achille Zirizzotti, Lili Cafarella, Stefano Urbini, Neal Young   +6 more
doaj   +2 more sources

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, J. S. Halliday, K. J. Miller   +2 more
core   +3 more sources

Radio Echo Sounding (RES) investigations at Talos Dome (East Antarctica): bedrock topography and ice thickness [PDF]

Annals of Geophysics, 2003
Radio echo sounding measurements were collected during two Antarctic expeditions to determine the ice thickness and the sub-glacial morphology of Talos Dome in the region around 72°48'S; 159°06'E (about 6400 km2) on the edge of the East ...
I. E. Tabacco, M. Frezzotti, A. Forieri, P. De Michelis, L. Cafarella, C. Bianchi, A. Zirizzotti   +6 more
doaj   +3 more sources

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
core   +3 more sources

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., Lapazaran Izargain, Javier Jesús, Machío, F., Navarro Valero, Francisco José, Vasilenko, Evgeniy   +4 more
core   +1 more source

Origin of englacial stratigraphy at three deep ice core sites of the Greenland Ice Sheet by synthetic radar modelling

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, Olaf Eisen, Steven Franke, Daniela Jansen, Daniel Steinhage, John Paden, Dorthe Dahl-Jensen, Ilka Weikusat, Jan Eichler, Frank Wilhelms   +9 more
doaj   +1 more source

Switch-off of a major enhanced ice flow unit in East Antarctica [PDF]

, 2006
The East Antarctic Ice Sheet (EAIS) is the largest reservoir of ice on the planet by an order of magnitude. Compared with the West Antarctic Ice Sheet (WAIS), it is traditionally considered to be relatively stable, with only minor adjustments to its ...
Corr, Hugh F.J., Rippin, David M., Siegert, MJ, Bamber, JL, Vaughan, DG, Bamber, Jonathan L., Corr, HFJ, Vaughan, David G., Corr, Hugh F. J., Siegert, Martin J., Rippin, DM   +10 more
core   +1 more source

NATIONAL SEISMIC, RADAR AND SEISMOLOGICAL STUDIES OF SUBGLACIAL LAKE VOSTOK

Лëд и снег, 2015
The results of the remote sensing which carried out in the LakeVostokarea are discussed in the paper. A.P. Kapitsa and O.G. Sorokhtin started the geophysical researches in this area in 1950s.
S. V. Popov, V. N. Masolov, V. V. Lukin, A. M. Popkov   +3 more
doaj   +1 more source