Results 31 to 40 of about 383 (171)
, 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
core +1 more source
Report of the Wintering Party of the 12th Japanese Antarctic Research Expedition in 1971-1972
Antarctic Record, 1974 1. The 12th wintering party consisting of 29 members was in charge of research activities at Syowa Station for the period from March 1971 to February 1972.
Takasi OGUTI
doaj +1 more source
Journal of Glaciology, 2021 The density–depth relationship of the Antarctic ice sheet is important for establishing a high-precision surface mass balance model and predicting future ice-sheet contributions to global sea levels.
Wangxiao Yang +8 more
doaj +1 more source
Comparing numerical ice-sheet model output with radio-echo sounding measurements in the Weddell Sea sector of West Antarctica [PDF]
, 2019 Numerical ice-sheet models are commonly matched to surface ice velocities from InSAR measurements by modifying basal drag, allowing the flow and form of the ice sheet to be simulated. Geophysical measurements of the bed are rarely used to examine if this
Jeofry, Hafeez +2 more
core +1 more source
Tracking coarse sediment in an Alpine subglacial channel using radio-tagged particles [PDF]
, 2023 We present a method for tracking radio-tagged pebbles and cobbles through subglacial meltwater channels under shallow temperate glaciers. Natural particles tagged with active radio transmitters were injected directly into a large subglacial channel 300 m
Hubbard, Bryn +7 more
core +1 more source
Polarimetric multi-offset radio-echo sounding with a radio frequency-over-fiber ApRES system
Journal of GlaciologyPolarimetric multi-offset radio-echo sounding offers improved constraints on englacial thermal conditions, basal properties and ice crystal orientation compared to standard monostatic observations.
Daniel F. May +9 more
doaj +1 more source
Annals of Glaciology, 2020 All radar power interpretations require a correction for attenuative losses. Moreover, radar attenuation is a proxy for ice-column properties, such as temperature and chemistry. Prior studies use either paired thermodynamic and conductivity models or the
Benjamin H. Hills +2 more
doaj +1 more source
, 2022 This is the supplementary dataset for the manuscript titled Rock glacier composition and structure from radio wave speed analysis with dipping reflector correction, published in the Journal of Glaciology.
Tyler Meng (12262559) +2 more
core +1 more source
Assessing the subglacial lake coverage of Antarctica
Annals of Glaciology, 2016 Lakes beneath the Antarctic Ice Sheet are known to decrease traction at the ice base and therefore can have a great impact on ice dynamics. However, the total extent of Antarctic subglacial lakes is still unknown.
Sebastian Goeller +3 more
doaj +1 more source
Boreas, EarlyView.Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein +19 more
wiley +1 more source