Results 31 to 40 of about 67,581 (340)
Remote Sensing, 2022 This paper explores the potential of ground-penetrating radar (GPR) monitoring for an advanced understanding of snow cover processes and structure. For this purpose, the study uses the Hansbreen (SW Spitsbergen) records that are among the longest and the
K. Kachniarz +4 more
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Radio-Echo Sounding of Mountain Glaciers [PDF]
Journal of Glaciology, 1975 AbstractExperiments on radio-echo sounding of mountain glaciers have been done on Lednik Marukh (west Caucasus), Lednik Bezingy and Lednik Dzhankuat (central Caucasus), Lednik Gergety (east Caucasus), and Lednik IGAN (Polar Urals) in 1967-71 as a part of the I.H.D. programme.
I. A. Zotikov +3 more
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The Cryosphere, 2021 . We present repeated radio-echo sounding (RES, 5 MHz) on a profile grid over the Eastern Skaftá Cauldron (ESC) in Vatnajökull ice cap, Iceland. The ESC is ~3 km wide and 50–150 m deep ice cauldron created and maintained by subglacial geothermal activity
E. Magnússon +8 more
semanticscholar +1 more source
Simulating the Profile of a Radio Altimeter Echo Signal
Известия высших учебных заведений России: Радиоэлектроника, 2022 Introduction. Radio altimeters are used for remote monitoring of the Earth and sea surface based on the signal power profile, i.e. the dependence of echo signal power vs time, averaged over a set of sounding measurements. Calculation of the power profile
M. A. Borodin
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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
openaire +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
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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, /
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