Results 41 to 50 of about 1,021,087 (280)
AN AUTOMATIC EXTRACTION METHOD FOR ANTARCTIC SUBGLACIAL LAKE BASED ON RADIO ECHO SOUNDING DATA [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 Detection of subglacial lakes and interpretation their hydrological connectivity is of great importance to understanding the mass balance of Antarctic ice sheet.
D. Wang +7 more
doaj +1 more source
Anisotropic scattering in radio-echo sounding: insights from northeast Greenland [PDF]
The CryosphereAnisotropic scattering and birefringence-induced power extinction are two distinct mechanisms affecting the azimuthal power response in radio-echo sounding (RES) of ice sheets.
T. A. Gerber +9 more
doaj +1 more source
Лëд и снег, 2016 Thickness of the upper cold ice layer in the ablation area of the polythermal glacier Grønfjordbreen (Spitsbergen) was estimated by means of numerical modeling.
A. V. Sosnovsky +3 more
doaj +1 more source
Radio-Echo Sounding: Glaciological Interpretations and Applications [PDF]
Journal of Glaciology, 1975 Abstract After a brief review of factors relevant to the propagation of radio waves in ice, problems of profiling the upper and bedrock surfaces of ice sheets are considered. These include deconvolution of echo traces and accurate navigation.
openaire +1 more source
Accidents and opportunities: a history of the radio echo-sounding of Antarctica, 1958–79 [PDF]
The British Journal for the History of Science, 2008 AbstractThis paper explores the history of radio echo-sounding (RES), a technique of glaciological surveying that from the late 1960s has been used to examine Antarctica's sub-glacial morphology. Although the origins of RES can be traced back to two accidental findings, its development relied upon the establishment of new geopolitical conditions, which
Siegert, Martin +3 more
openaire +3 more sources
Acidity Levels in Ice Sheets from Radio Echo-Sounding
, 1982 It has been suggested (Hammer 1977, Gudmandsen and Overgaard 1978, Millar 1981) that layers of acidic ice, formed after large volcanic eruptions, are a cause of radio echo layering.
D. H. M. Millar
core +2 more sources
Deep multi-scale learning for automatic tracking of internal layers of ice in radar data
Journal of Glaciology, 2021 In this study, our goal is to track internal ice layers on the Snow Radar data collected by NASA Operation IceBridge. We examine the application of deep learning methods on radar data gathered from polar regions.
Maryam Rahnemoonfar +4 more
doaj +1 more source
Englacial architecture of Lambert Glacier, East Antarctica [PDF]
The Cryosphere, 2023 The analysis of englacial layers using radio-echo sounding data enables the characterisation and reconstruction of current and past ice-sheet flow. Despite the Lambert Glacier catchment being one of the largest in Antarctica, discharging ∼16 % of East ...
R. J. Sanderson +8 more
doaj +1 more source
, 1975 Field experimental data show the possibility of using standard radio-echo sounding equipment of relatively low power to sound through a temperate mountain glacier.
L. A. Suchanov
core +2 more sources
Radio-echo sounding isochrone depths in the East Antarctic Ice Sheet
, 2018 Radio-echo sounding isochrone depths in the East Antarctic Ice ...
Creyts, Timothy T +7 more
core +1 more source