Results 1 to 10 of about 136,204 (182)

Hard rocks and deep wetlands beneath Thwaites Glacier in Antarctica [PDF]

Communications Earth & Environment
Thwaites Glacier in West Antarctica is losing ice rapidly and is considered especially vulnerable to retreat, but predictions of its future remain limited by uncertainties about its subglacial properties.
Ole Zeising, Olaf Eisen, Coen Hofstede, Ronan Agnew, Alex Brisbourne, Andrew O. Hoffman, Sridhar Anandakrishnan, On behalf of the GHOST Team   +7 more
doaj   +2 more sources

An updated seabed bathymetry beneath Larsen C Ice Shelf, Antarctic Peninsula [PDF]

Earth System Science Data, 2020
In recent decades, rapid ice shelf disintegration along the Antarctic Peninsula has had a global impact through enhancing outlet glacier flow and hence sea level rise and the freshening of Antarctic Bottom Water.
A. Brisbourne, B. Kulessa, T. Hudson, L. Harrison, P. Holland, A. Luckman, S. Bevan, D. Ashmore, B. Hubbard, E. Pearce, J. White, A. Booth, K. Nicholls, A. Smith   +13 more
doaj   +1 more source

Weathering alteration in the Antarctic environment as seen in the Miller Range (MIL) 090030 Martian meteorite

Annals of Glaciology, 2023
The analysis of Martian meteorites is a key research to understand the mineralogical composition of Mars. However, they suffer different types of alteration due to the environment where they fall on Earth.
Leire Coloma, Julene Aramendia, Jennifer Huidobro, Iratxe Población, Cristina García-Florentino, Kepa Castro, Gorka Arana, Juan Manuel Madariaga   +7 more
doaj   +1 more source

Steep ice – progress and future challenges in research on ice cliffs

Annals of Glaciology, 2022
Ice cliffs are features along ice sheet margins, along tropical mountain glaciers, at termini of mountain glaciers and on debris-covered glacier tongues, that have received scattered attention in literature.
Jakob F. Steiner, Pascal Buri, Jakob Abermann, Rainer Prinz, Lindsey Nicholson   +4 more
doaj   +1 more source

Polarimetric radar reveals the spatial distribution of ice fabric at domes and divides in East Antarctica [PDF]

The Cryosphere, 2022
Ice crystals are mechanically and dielectrically anisotropic. They progressively align under cumulative deformation, forming an ice-crystal-orientation fabric that, in turn, impacts ice deformation.
M. R. Ershadi, R. Drews, C. Martín, O. Eisen, O. Eisen, C. Ritz, H. Corr, J. Christmann, J. Christmann, O. Zeising, O. Zeising, A. Humbert, A. Humbert, R. Mulvaney   +13 more
doaj   +1 more source

Ambient high-frequency seismic surface waves in the firn column of central west Antarctica

Journal of Glaciology, 2022
Firn is the pervasive surface material across Antarctica, and its structures reflect its formation and history in response to environmental perturbations.
Julien Chaput, Rick Aster, Marianne Karplus, Nori Nakata   +3 more
doaj   +1 more source

Historical occurrence of Antarctic icebergs within mercantile shipping routes and the exceptional events of the 1890s

Journal of Glaciology, 2023
A major consideration for maritime activity in the Southern Hemisphere is the northern limit of icebergs, or the Southern Ocean Limit Of Known Ice (SOLOKI).
Robert Keith Headland, Nicholas Edward Hughes, Jeremy Paul Wilkinson   +2 more
doaj   +1 more source

The 1789 Christmas Eve collision of the HMS Guardian with an iceberg in the southwest Indian Ocean

Annals of Glaciology, 2022
In the evening of 24 December 1789, 2100 km southeast of Cape Town and after encountering three icebergs, the HMS Guardian under Captain Edward Riou collided with the submerged foot of a large iceberg.
Seelye Martin
doaj   +1 more source

The influence of environmental microseismicity on detection and interpretation of small-magnitude events in a polar glacier setting

Journal of Glaciology, 2020
Glacial environments exhibit temporally variable microseismicity. To investigate how microseismicity influences event detection, we implement two noise-adaptive digital power detectors to process seismic data from Taylor Glacier, Antarctica.
Chris G. Carr, Joshua D. Carmichael, Erin C. Pettit, Martin Truffer   +3 more
doaj   +1 more source

Progress toward globally complete frontal ablation estimates of marine-terminating glaciers

Annals of Glaciology, 2022
Knowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss ...
William Kochtitzky, Luke Copland, Wesley Van Wychen, Regine Hock, David R. Rounce, Hester Jiskoot, Ted A. Scambos, Mathieu Morlighem, Michalea King, Leo Cha, Luke Gould, Paige-Marie Merrill, Andrey Glazovsky, Romain Hugonnet, Tazio Strozzi, Brice Noël, Francisco Navarro, Romain Millan, Julian A. Dowdeswell, Alison Cook, Abigail Dalton, Shfaqat Khan, Jacek Jania   +22 more
doaj   +1 more source