Results 51 to 60 of about 289 (174)

The BAS ice shelf hot water drill: design, methods and tools [PDF]

, 2014
The 2011/12 Antarctic field season saw the first use of a new British Antarctic Survey (BAS) ice-shelf hot-water drill system on the Larsen C and George VI ice shelves.
Anker, Paul G.D., Paul G.D. Anker, Keith Makinson, Makinson, Keith   +3 more
core   +1 more source

Direct measurement of optical properties of glacier ice using a photon-counting diffuse LiDAR

Journal of Glaciology, 2022
The production of meltwater from glacier ice, which is exposed at the margins of land ice during the summer, is responsible for a large proportion of glacier mass loss.
Markus Allgaier, Matthew G. Cooper, Anders E. Carlson, Sarah W. Cooley, Jonathan C. Ryan, Brian J. Smith   +5 more
doaj   +1 more source

An efficient melting probe for glacial research

Annals of Glaciology, 2021
In this paper, we present an electric-thermal drill with a novel design of a melting head that was developed within the EnEx-RANGE project. The design combines a short melting head with a large surface area of parabolic shape.
Dirk Heinen, Peter Linder, Simon Zierke, Christopher Wiebusch   +3 more
doaj   +1 more source

Instruments and methods: Submersible remotely operated vehicles (ROVs) for investigations of the glacier-ocean-sediment interface

, 1996
Submersible remotely operated vehicles (ROVs) are valuable research tools for data collection in dangerous or inaccessible environments associated with glaciers terminating in the sea.
Ross D. Powell, Julian A. Dowdeswell
core   +1 more source

For whom and by whom is glaciology?

Journal of Glaciology
Glacier and ice sheet research is frequently justified on the basis of potential benefits to those communities that are most vulnerable to glacier change.
Alexander A. Robel, Lizz Ultee, Meghana Ranganathan, Meredith Nash   +3 more
doaj   +1 more source

Search and recovery of aircraft parts in ice-sheet crevasse fields using airborne and in situ geophysical sensors

Journal of Glaciology, 2020
On 30 September 2017, an Air France Airbus A380-800 suffered a failure of its fourth engine while over Greenland. This failure resulted in the loss of the engine fan hub, fan blades and surrounding structure.
Kenneth D. Mankoff, Dirk van As, Austin Lines, Thue Bording, Joshua Elliott, Rune Kraghede, Hubert Cantalloube, Hélène Oriot, Pascale Dubois-Fernandez, Olivier Ruault du Plessis, Anders Vest Christiansen, Esben Auken, Karina Hansen, William Colgan, Nanna B. Karlsson   +14 more
doaj   +1 more source

Instruments and Methods: Direct measurement of sliding at the glacier bed

, 1994
Sliding at the base of Trapridge Glacier, Yukon Territory, Canada, was measured using a “drag spool”. We describe this simple and inexpensive instrument as well as its installation and operation.
Garry K. G. Clarke, C.R. Bentley, W. Blake, Urs H. Fischer   +3 more
core   +1 more source

Connectivity Between Primary and Secondary Subglacial Drainage Subsystems Beneath a Land‐Terminating Outlet Glacier of the Greenland Ice Sheet

AGU Advances, Volume 7, Issue 5, August 2026.
Abstract The evolution and connectivity of subglacial drainage systems control basal sliding and therefore modulate ice motion, yet direct observations of these systems remain limited. Here, we investigate hydraulic connectivity and its influence on ice motion at Isunnguata Sermia, a large land‐terminating outlet glacier of the Greenland Ice Sheet.
R. Ing, E. Bagshaw, J. Hawkins, M. Peacey, S. Doyle, S. Livingstone, M. Prior‐Jones, S. Thorpe, A. Moffatt, A. Sole, G. Bianchi, A. Booth, S. Buzzard, T. Chudley, C. Clason, L. Craw, L. Edwards, F. Gimbert, A. Hepburn, A. Jones, T. Le Bris, S. Mann, A. Michel, N. Ross, R. Storrar, R. Veness, T. Young   +26 more
wiley   +1 more source

Signal characteristics of surface seismic explosive sources near the West Antarctic Ice Sheet divide

Journal of Glaciology
Seismic imaging in 3-D holds great potential for improving our understanding of ice sheet structure and dynamics. Conducting 3-D imaging in remote areas is simplified by using lightweight and logistically straightforward sources.
Marianne S. Karplus, Nori Nakata, Galen M. Kaip, Steven H. Harder, Lucia F. Gonzalez, Adam D. Booth, Emma C. Smith, Stephen A. Veitch, Jacob I. Walter, Poul Christoffersen   +9 more
doaj   +1 more source

Instruments and Methods: An Effective Pressure Room Seal in Ice

, 1965
Several methods were tried to seal a room in ice which could be pressurized to the overburden pressure of the ice. We found that a keyed bulkhead consisting of two ice walls with an in-place frozen mixture of water, clay and styrofoam pellets between ...
G. E. H. Ballard, R. O. Ramseier
core   +1 more source