Results 11 to 20 of about 31,420 (299)
Radio-echo Sounding at the Mittivakkat Gletscher, Southeast Greenland [PDF]
Arctic, Antarctic, and Alpine Research, 1999 Profiles along sounding lines and maps are presented of the glacier surface, bottom topography, and ice thickness of Mittivakkat Gletscher. The maps are the result of the use of monopulse radio-echo sounding of ice thickness in about 450 points along profiles across the glacier.
Hasholt, Bent, Knudsen, Niels Aage Tvis
openaire +3 more sources
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
openaire +1 more source
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
doaj +1 more source
Oceanographic and underwater acoustics research : conducted during the period 1 November 1960 - 30 April 1961 [PDF]
, 1961 Digital computing techniques have been used in special computing applications in underwater acoustics at WHOI for many years, but recently we have commenced intensive application of digital data handling and computing facilities to a variety of computing,
Woods Hole Oceanographic Institution, /
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 +3 more
doaj +1 more source
Radioglaciological studies on Hurd Peninsula glaciers, Livingston Island, Antarctica [PDF]
, 2009 We present the results of several radio-echo sounding surveys carried out on Johnsons and Hurd Glaciers, Livingston Island, Antarctica, between the 1999/2000 and 2004/05 austral summer campaigns, which included both radar profiling and common-midpoint ...
Ahlstrom, L.P. +6 more
core +2 more sources
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
doaj +1 more source