Results 31 to 40 of about 291 (173)

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

Instruments and Methods: A Digital Low-Frequency, Surface-Profiling Ice-Radar System

, 1990
A new short-pulse digital profiling radar system that operates at lower frequencies than most ice radars used in polar regions to date has been designed and built by the U.S. Geological Survey.
David L. Wright, Thomas P. Grover, Jerry A. Bradley, Steven M. Hodge, Robert W. Jacobel   +4 more
core   +1 more source

Instruments and Methods: Portable Thermal Core Drill for Temperate Glaciers [PDF]

, 1964
In the summer of 1962 a completely portable and relatively simple electrically heated thermal core drill of new design was constructed and used to obtain 16 oriented samples of ice 2.5 cm. in diameter by 120 cm.
W. B. Kamb, R. L. Shreve
core   +2 more sources

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

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

AlpIce‐1: a database of geochronological and geomorphological constraints on Alps‐wide palaeoglacier fluctuations between the Last Glacial Maximum and the Holocene

Boreas, EarlyView.
The AlpIce‐1 database is the first compilation of published geomorphological and geochronological markers constraining build‐up, culmination and decay of glaciers from the Last Glacial Maximum through the Holocene across the entire European Alps. AlpIce‐1 integrates more than 4200 surface‐exposure and radiocarbon ages, homogenized, quality controlled ...
Sarah Kamleitner, Susan Ivy‐Ochs, Tancrède P. M. Leger, Andreas Henz, Samuel U. Nussbaumer, Andreas Vieli, Guillaume Jouvet   +6 more
wiley   +1 more source

Q‐GlaRe+: An Open‐Source Framework for Palaeoglacier Reconstruction and Equilibrium‐Line Altitude Calculation

Earth Surface Processes and Landforms, Volume 51, Issue 9, September 2026.
Q‐GlaRe+ is an open‐source QGIS plugin for palaeoglacier reconstruction and equilibrium‐line altitude estimation. Validation against Swiss Alpine glaciers demonstrates accuracy comparable to proprietary tools. By removing software barriers and supporting FAIR principles, Q‐GlaRe+ enables broader access to glacier reconstruction capabilities and ...
Brian S. Burnham, Matteo Spagnolo, Ramon Pellitero, Yingkui Li, Iestyn Barr, Brice R. Rea, Alexios Kaselouris   +6 more
wiley   +1 more source