Results 11 to 20 of about 100,423 (273)

Supervised classification of slush and ponded water on Antarctic ice shelves using Landsat 8 imagery

Journal of Glaciology, 2021
Surface meltwater is becoming increasingly widespread on Antarctic ice shelves. It is stored within surface ponds and streams, or within firn pore spaces, which may saturate to form slush.
R. Dell, A. Banwell, I. Willis, N. Arnold, A. Halberstadt, T. Chudley, H. Pritchard   +6 more
semanticscholar   +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

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

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

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

Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)

Journal of Glaciology, 2020
Antarctica's ice shelves modulate the grounded ice flow, and weakening of ice shelves due to climate forcing will decrease their ‘buttressing’ effect, causing a response in the grounded ice.
Sainan Sun, F. Pattyn, E. Simon, T. Albrecht, S. Cornford, R. Calov, C. Dumas, F. Gillet‐Chaulet, H. Goelzer, N. Golledge, R. Greve, M. Hoffman, A. Humbert, Elise Kazmierczak, T. Kleiner, G. Leguy, W. Lipscomb, Daniel F. Martin, Mathieu Morlighem, S. Nowicki, D. Pollard, S. Price, A. Quiquet, H. Seroussi, Tanja Schlemm, J. Sutter, R. V. D. van de Wal, R. Winkelmann, Tong Zhang   +28 more
semanticscholar   +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

A dynamical systems perspective on the Mid-Pleistocene Transition. [PDF]

J R Soc N Z
ABSTRACT Long‐term cooling of Earth's climate led to repeated glaciations that from the Pliocene (5.3–2.6 Ma) into the Pleistocene (2.6 Ma–11.7 ka) became increasingly cold and asymmetric. Whether this progressive change in global climate was forced by external drivers, or arose entirely from internal feedbacks, is debated.
Golledge NR.
europepmc   +2 more sources

Observations of exponential wave attenuation in Antarctic sea ice during the PIPERS campaign

Annals of Glaciology, 2020
Quantifying the rate of wave attenuation in sea ice is key to understanding trends in the Antarctic marginal ice zone extent. However, a paucity of observations of waves in sea ice limits progress on this front.
A. Kohout, M. Smith, L. Roach, Guy D. Williams, F. Montiel, M. Williams   +5 more
semanticscholar   +1 more source