Results 21 to 30 of about 100,423 (273)

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

Coupling the U.K. Earth System Model to Dynamic Models of the Greenland and Antarctic Ice Sheets

Journal of Advances in Modeling Earth Systems, 2021
The physical interactions between ice sheets and the atmosphere and ocean around them are major factors in determining the state of the climate system, yet many current Earth System models omit them entirely or treat them very simply.
Robin S. Smith, Pierre Mathiot, Antony Siahaan, Victoria Lee, Stephen L. Cornford, Jonathan M. Gregory, Antony J. Payne, Adrian Jenkins, Paul R. Holland, Jeff K. Ridley, Colin G. Jones   +10 more
doaj   +1 more source

A benchmark dataset of in situ Antarctic surface melt rates and energy balance

Journal of Glaciology, 2020
Surface melt on the coastal Antarctic ice sheet (AIS) determines the viability of its ice shelves and the stability of the grounded ice sheet, but very few in situ melt rate estimates exist to date.
C. L. Jakobs, C. Reijmer, C. Smeets, L. Trusel, W. J. van de Berg, M. R. van den Broeke, J. M. van Wessem   +6 more
semanticscholar   +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

Radio-Echo Sounding Over Polar Ice Masses [PDF]

, 2007
Peer reviewedPublisher ...
Bingham, Robert G., Siegert, Martin J.
core   +1 more source

Deep ice core drilling to a depth of 3035.22 m at Dome Fuji, Antarctica in 2001–07

Annals of Glaciology, 2021
The Japanese second deep ice coring project was carried out at Dome Fuji, Antarctica. Following the drilling of the pilot hole in 2001, deep ice core drilling led by the Japanese Antarctic Research Expedition (JARE) was conducted over four austral summer
Hideaki Motoyama, Akiyoshi Takahashi, Yoichi Tanaka, Kunio Shinbori, Morihiro Miyahara, Takayasu Yoshimoto, Yoshiyuki Fujii, Atsushi Furusaki, Nobuhiko Azuma, Yukio Ozawa, Akio Kobayashi, Yasushi Yoshise   +11 more
doaj   +1 more source

Englacial Pore Water Localizes Shear in Temperate Ice Stream Margins [PDF]

, 2019
The margins of fast‐moving ice streams are characterized by steep velocity gradients. Some of these gradients cannot be explained by a temperature‐dependent viscosity alone.
Haseloff, Marianne, Hewitt, I. J., Katz, R. F.   +2 more
core   +2 more sources

Inland thinning of the Amundsen Sea sector, West Antarctica [PDF]

, 2002
[1] Together with the Pine Island glacier (PIG), the Thwaites (TG) and Smith (SG) glaciers are the principal drainage systems of the Amundsen Sea (AS) sector of Western Antarctica.
Mansley, JAD, Shepherd, A, Wingham, DJ
core   +1 more source

Basal freeze-on generates complex ice-sheet stratigraphy

Nature Communications, 2018
Subsurface ice-sheet radar images reveal large plume-shaped bodies rising from the base, with their origin not yet understood. Here, the authors show that freeze-on of water at the ice-sheet base combined with ice-flux explains the vertical extent, shape
G. J.-M. C. Leysinger Vieli, C. Martín, R. C. A. Hindmarsh, M. P. Lüthi   +3 more
doaj   +1 more source

Changes in area, flow speed and structure of southwest Antarctic Peninsula ice shelves in the 21st century

Journal of Glaciology, 2022
Since the mid-20th century, ice shelves around the Antarctic Peninsula have declined in extent and thickness, and some have shown signs of structural instability.
Tom Holt, Neil F Glasser
doaj   +1 more source