Results 21 to 30 of about 38,554 (275)
Multiangle, Frequency, and Polarization Radar Measurement of Ice Sheets
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 Radio echo sounding of polar ice sheets provides important information on the ice bed topography and internal layers. These data have been used by scientists to create 3-D maps of polar ice sheets for climate modeling as well as to reconstruct the ...
Jie-Bang Yan +11 more
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A site for deep ice coring at West Hercules Dome: results from ground-based geophysics and modeling
Journal of Glaciology, 2023 Hercules Dome, Antarctica, has long been identified as a prospective deep ice core site due to the undisturbed internal layering, climatic setting and potential to obtain proxy records from the Last Interglacial (LIG) period when the West Antarctic ice ...
T. J. Fudge +9 more
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Radio Echo Sounding On Temperate Glaciers [PDF]
Journal of Glaciology, 1975 A high-resolution radio echo sounder operating at a frequency of 620 MHz has been developed for studies of temperate glaciers. Excellent spatial resolution is obtained through the use of a short pulse length (70 ns) and an antenna beam width of 5.2°. Large amounts of high-quality data may be rapidly collected since the sounder incorporates an automatic
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Radio-Echo Sounding Over Polar Ice Masses [PDF]
Journal of Environmental and Engineering Geophysics, 2007 Radio-echo sounding (RES) constitutes the principal means by which glaciologists investigate the subsurface properties of the polar ice sheets and ice caps. Developed in the 1960s as a method for locating and mapping the subglacial interface beneath extensive regions of ice-covered terrain, thereby to constrain ice volume and morphology, it was ...
Bingham, Robert G., Siegert, Martin J.
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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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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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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 +3 more
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Quasi-parabolic reflecting bottom surfaces of the Drygalski Antarctic floating ice tongue
Annals of Geophysics, 2001 Very high frequency deep radio sounding systems for ice thickness measurements are practically the only useful apparatuses for large scale radar flight surveys in polar regions. The morphology of the bottom surface of an Antarctic floating ice tongue, in
E. Zuccheretti +4 more
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Radio Echo Sounding: Brine Percolation Layer [PDF]
Journal of Glaciology, 1973 AbstractAn 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.
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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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