Results 31 to 40 of about 38,554 (275)

Radiofrequency ice dielectric measurements at Summit Station, Greenland

Journal of Glaciology, 2023
We recently reported on the radio-frequency attenuation length of cold polar ice at Summit Station, Greenland, based on bi-static radar measurements of radio-frequency bedrock echo strengths taken during the summer of 2021.
Juan Antonio Aguilar, Patrick Allison, Dave Besson, Abby Bishop, Olga Botner, Sjoerd Bouma, Stijn Buitink, Maddalena Cataldo, Brian A. Clark, Kenny Couberly, Zach Curtis-Ginsberg, Paramita Dasgupta, Simon de Kockere, Krijn D. de Vries, Cosmin Deaconu, Michael A. DuVernois, Anna Eimer, Christian Glaser, Allan Hallgren, Steffen Hallmann, Jordan Christian Hanson, Bryan Hendricks, Jakob Henrichs, Nils Heyer, Christian Hornhuber, Kaeli Hughes, Timo Karg, Albrecht Karle, John L. Kelley, Michael Korntheuer, Marek Kowalski, Ilya Kravchenko, Ryan Krebs, Robert Lahmann, Uzair Latif, Joseph Mammo, Matthew J. Marsee, Zachary S. Meyers, Kelli Michaels, Katharine Mulrey, Marco Muzio, Anna Nelles, Alexander Novikov, Alisa Nozdrina, Eric Oberla, Bob Oeyen, Ilse Plaisier, Noppadol Punsuebsay, Lilly Pyras, Dirk Ryckbosch, Olaf Scholten, David Seckel, Mohammad Ful Hossain Seikh, Daniel Smith, Jethro Stoffels, Daniel Southall, Karen Terveer, Simona Toscano, Delia Tosi, Dieder J. Van Den Broeck, Nick van Eijndhoven, Abigail G. Vieregg, Janna Z. Vischer, Christoph Welling, Dawn R. Williams, Stephanie Wissel, Robert Young, Adrian Zink   +67 more
doaj   +1 more source

Detecting and Searching for subglacial lakes through airborne radio-echo sounding in Princess Elizabeth Land (PEL), Antarctica

E3S Web of Conferences, 2020
Over 400 subglacial lakes were discovered in Antarctica through radio-echo sounding (RES) method and remote sensing. Subglacial lakes have significance in lubricating ice-bedrock interface and enhancing ice flow.
X. Cui, S. Lang, Jingxue Guo, Bo Sun
semanticscholar   +1 more source

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

Annals 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, M. Frezzotti, A. Forieri, P. De Michelis, L. Cafarella, C. Bianchi, A. Zirizzotti   +6 more
doaj   +1 more source

Interpreting englacial layer deformation in the presence of complex ice flow history with synthetic radargrams

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, Dustin M. Schroeder, Matthew R. Siegfried   +2 more
doaj   +1 more source

Radio echo sounding data analysis of the Shackleton Ice Shelf

Annals of Geophysics, 2010
In this study, our initial results are presented for the interpretation of the radio echo sounding data collected over the Shackleton Ice Shelf and adjacent ice sheet (East Antarctica) during the 2003/2004 Australian-Italian expedition.
James A. Baskaradas, Carla Bottari, Ignazio Ezio Tabacco, Achille Zirizzotti, Lili Cafarella, Stefano Urbini, Neal Young   +6 more
doaj   +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, A. Zirizzotti, A. Passerini, I. E. Tabacco, M. Chiappini, C. Bianchi   +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, Tron Laumann, Cecilie Lund   +2 more
openaire   +1 more source

Hydrothermal structure of a polythermal glacier in Spitsbergen by measurements and numerical modeling

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, Yu. Ya. Macheret, A. F. Glazovsky, I. I. Lavrentiev   +3 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, K. Winter, S. L. Callard, F. Napoleoni, F. Napoleoni, F. Napoleoni, N. Ross, T. A. Jordan, R. G. Bingham   +8 more
doaj   +1 more source