Results 31 to 40 of about 256 (175)

The SUBGLACIOR drilling probe: hydraulic considerations

Annals of Glaciology, 2021
Using significant technological breakthroughs and unconventional approaches, the goal of the in situ probing of glacier ice for a better understanding of the orbital response of climate (SUBGLACIOR) project is to advance ice core research by inventing ...
O. Alemany, P. Talalay, P. Boissonneau, J. Chappellaz, J. F. Chemin, R. Duphil, E. Lefebvre, L. Piard, P. Possenti, J. Triest   +9 more
doaj   +1 more source

A self-adaptive two-parameter method for characterizing roughness of multi-scale subglacial topography

Journal of Glaciology, 2021
During the last few decades, bed-elevation profiles from radar sounders have been used to quantify bed roughness. Various methods have been employed, such as the ‘two-parameter’ technique that considers vertical and slope irregularities in topography ...
Shinan Lang, Ben Xu, Xiangbin Cui, Kun Luo, Jingxue Guo, Xueyuan Tang, Yiheng Cai, Bo Sun, Martin J. Siegert   +8 more
doaj   +1 more source

Paths forward in radioglaciology

Annals of Glaciology, 2022
Ice-penetrating radar sounding is a powerful geophysical tool for studying terrestrial and planetary ice with a rich glaciological heritage reaching back over half a century.
Dustin M. Schroeder
doaj   +1 more source

Instruments and Methods Comparison of the Snow Resistograph with the Ram Penetrometer

, 1973
Comparative tests of the snow resistograph with the ram penetrometer indicate that there is a high degree of correlation between the two instruments despite fundamental differences in operation.
Charles C. Bradley, William St. Lawrence
core   +1 more source

Report of "Workshop on the Glaicological Technology in Polar Regions"

, 1995
A workshop on Glaciological Technology in Polar Regions was organized to discuss recent progress in glaciological technology, including observation and analytical methods.
Kokichi Kamiyama
core   +1 more source

Measurement of snowpack density, grain size, and black carbon concentration using time-domain diffuse optics

Journal of Glaciology
Diffuse optical spectroscopy (DOS) techniques characterize scattering media by examining their optical response to laser illumination. Time-domain DOS methods involve illuminating the medium with a laser pulse and using a fast photodetector to measure ...
Connor Andrew Henley, Colin Richard Meyer, Jacob Ian Chalif, Joseph Lee Hollmann, Ramesh Raskar   +4 more
doaj   +1 more source

Snow and ice in the desert: reflections from a decade of connecting cryospheric science with communities in the semiarid Chilean Andes

Annals of Glaciology, 2022
Citizen science and related engagement programmes have proliferated in recent years throughout the sciences but have been reasonably limited in the cryospheric sciences.
Shelley MacDonell, Paloma Núñez Farías, Valentina Aliste, Álvaro Ayala, Camilo Guzmán, Patricio Jofré Díaz, Nicole Schaffer, Simone Schauwecker, Eric A. Sproles, Eduardo Yáñez San Francisco   +9 more
doaj   +1 more source

From Highlands to Henge: Refining the Provenance and Transport Pathways of Stonehenge's Altar Stone

Journal of Quaternary Science, EarlyView.
ABSTRACT The Altar Stone, the 6000 kg central sandstone megalith at Stonehenge in southern England, is suggested to have originated from the Orcadian Basin in northeast Scotland, some 700 km away. However, its source location within this large basin remains unresolved and its mode of transport uncertain.
Anthony J. I. Clarke, Remy L. J. Veness, Christopher L. Kirkland, Chris D. Clark, Niall Gandy, Andy Emery, Sarah L. Bradley, Jeremy C. Ely, Ignéczi Ádám   +8 more
wiley   +1 more source

Capturing the Multi‐Decadal Evolution of Glacier–Permafrost Interactions in a High‐Alpine Environment (Ritord, Western Swiss Alps)

Permafrost and Periglacial Processes, EarlyView.
ABSTRACT This study investigates the multi‐decadal evolution of a glacier forefield under permafrost conditions in the Combins Massif (western Swiss Alps). A multi‐method approach based on historical and recent datasets is used to analyze its landform components.
Julie Wee, Hanne Hendrickx, Sebastián Vivero   +2 more
wiley   +1 more source

Instruments and Methods Instrumented Probes for Deep Glacial Investigations

, 1968
Thermal probes can carry instrumentation packages into polar ice sheets for geophysical investigations and long-term observations by remote measurement methods. They are self-contained surface-controlled devices. The development work at U.S.
Haldor W. C. Aamot
core   +1 more source