Results 51 to 60 of about 67,581 (340)
Annals of Glaciology, 2020 Fast ice flow on the Antarctic continent constitutes much of the mass loss from the ice sheet. However, geophysical methods struggle to constrain ice flow history at depth, or separate the signatures of topography, ice dynamics and basal conditions on ...
Cooper W. Elsworth +2 more
doaj +1 more source
Feasibility study and design concept for an orbiting ice-penetrating radar sounder to characterize in three-dimensions the Europan ice mantle down to (and including) any ice/ocean interface [PDF]
, 1999 This report presents a radar sounding model based on the range of current working hypotheses for the nature of Europa's icy shell.Institute for ...
Blankenship, D.D. +15 more
core +1 more source
Radio-Echo Sounding: Glaciological Interpretations and Applications [PDF]
Journal of Glaciology, 1975 AbstractAfter 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. Results already available not only provide knowledge of sub-ice geomorphology, but also confirm our general ...
openaire +1 more source
Morphology of bottom surfaces of glacier ice tongues in the East Antarctic region
Annals of Geophysics, 2001 During three Antarctic summer campaigns (1995/97/99) Radio Echo Sounding (RES) system data from some glacier ice tongues in the East Antarctic regions between Victoria Land and George V Land were collected.
E. Zuccheretti +5 more
doaj +1 more source
Helicopter-borne radio-echo sounding of Svartisen, Norway [PDF]
Annals of Glaciology, 1993 A helicopter-mounted low frequency ice-radar has been developed for the depth sounding of temperate glaciers. The radar consists of standard transmitter and digital receiver equipment. The long antennae are supported on a special aluminium and fibreglass construction which hangs 20 m below the helicopter. The radar has been used on Engabreen, an outlet
Michael Kennett +2 more
openaire +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
Past rates of accumulation in central West Antarctica [PDF]
, 2004 The spatial variation in ice accumulation is critical to the form and stability of ice sheets. In West Antarctica, knowledge of present ice accumulation rates is restricted to sparse measurements and interpolations across data free regions, while ...
Ackert +20 more
core +1 more source
Annals of Glaciology, 2020 Radar surveys across ice sheets typically measure numerous englacial layers that can often be regarded as isochrones. Such layers are valuable for extrapolating age–depth relationships away from ice-core locations, reconstructing palaeoaccumulation ...
Richard Delf +4 more
doaj +1 more source
Removal of ‘strip noise’ in radio-echo sounding data using combined wavelet and 2-D DFT filtering
Annals of Glaciology, 2019 Radio-echo sounding (RES) can be used to understand ice-sheet processes, englacial flow structures and bed properties, making it one of the most popular tools in glaciological exploration.
Bangbing Wang +9 more
semanticscholar +1 more source
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