Results 21 to 30 of about 1,021,087 (280)

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

open access: yesAnnals 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   +6 more
doaj   +3 more sources

Editorial for the Special Issue “Review of Application Areas of GPR”

open access: yesRemote 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
doaj   +1 more source

Radio-frequency probes of Antarctic ice at South Pole [PDF]

open access: yesThe 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
doaj   +1 more source

Simulating the Profile of a Radio Altimeter Echo Signal

open access: yesИзвестия 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
doaj   +1 more source

Multiangle, Frequency, and Polarization Radar Measurement of Ice Sheets

open access: yesIEEE 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

open access: yesJournal 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

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

open access: yesJournal 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

A compact lightweight multipurpose ground-penetrating radar for glaciological applications [PDF]

open access: yes, 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
core   +1 more source

Structure and dynamics of Aldegondabreen, Spitsbergen, according to repeated GPR surveys in 1999, 2018 and 2019

open access: yesЛëд 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

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

open access: yes, 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.   +10 more
core   +1 more source

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