Results 11 to 20 of about 977,191 (234)
Editorial for the Special Issue “Review of Application Areas of GPR”
Remote Sensing, 2023 Ground-penetrating radar (GPR) started as a radio echo sounding technology during the second half of the last century, but it is now a well-established and widely adopted technology for producing high-resolution images of subsurface [...]
Federico Lombardi +2 more
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Radio-frequency probes of Antarctic ice at South Pole [PDF]
The Cryosphere, 2013 Using hardware developed for the ARA (Askaryan Radio Array) particle astrophysics experiment, we herein report on the amplitude and temporal characteristics of polarized surface radar echo data collected in South Polar ice using radio sounding equipment ...
D. Besson, I. Kravchenko
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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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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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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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Airborne radar evidence for tributary flow switching in Institute Ice Stream, West Antarctica: implications for ice sheet configuration and dynamics [PDF]
, 2015 Despite the importance of ice streaming to the evaluation of West Antarctic Ice Sheet (WAIS) stability we know little about mid- to long-term dynamic changes within the Institute Ice Stream (IIS) catchment.
Martin J. Siegert +23 more
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