Results 41 to 50 of about 630,227 (329)

Ocean-driven thinning enhances iceberg calving and retreat of Antarctic ice shelves. [PDF]

Proc Natl Acad Sci U S A, 2015
Liu Y, Moore JC, Cheng X, Gladstone RM, Bassis JN, Liu H, Wen J, Hui F.   +7 more
europepmc   +2 more sources

Characteristics of surface “melt potential” over Antarctic ice shelves based on regional atmospheric model simulations of summer air temperature extremes from 1979/80 to 2018/19

Journal of Climate, 2022
We calculate a regional surface “melt potential” index (MPI) over Antarctic ice shelves that describes the frequency (MPI-freq, %) and intensity (MPI-int, K) of daily maximum summer temperatures exceeding a melt threshold of 273.15 K.
A. Orr, Pranab Deb, K. Clem, E. Gilbert, D. Bromwich, F. Boberg, S. Colwell, N. Hansen, M. Lazzara, P. Mooney, R. Mottram, M. Niwano, T. Phillips, D. Pishniak, C. Reijmer, W. J. van de Berg, S. Webster, Xun Zou   +17 more
semanticscholar   +1 more source

The circum-Antarctic ice-shelves respond to a more positive Southern Annular Mode with regionally varied melting

Communications Earth & Environment, 2022
The Southern Hemisphere cryosphere has recently shown regionally-contrasted responses to climate change, in particular to the positive phases of the Southern Annular Mode.
D. Verfaillie, C. Pelletier, H. Goosse, N. Jourdain, C. Bull, Q. Dalaiden, V. Favier, T. Fichefet, J. Wille   +8 more
semanticscholar   +1 more source

Volume loss from Antarctic ice shelves is accelerating

Science, 2015
F. Paolo, H. Fricker, L. Padman
semanticscholar   +3 more sources

Alternative ice-shelf equilibria determined by ocean environment [PDF]

, 2013
Dynamic and thermodynamic regimes of ice shelves experiencing weak (inline image1 m year−1) to strong (~10 m year−1) basal melting in cold (bottom temperature close to the in situ freezing point) and warm oceans (bottom temperature more than half of a ...
Goldberg, Daniel, Little, Chris, Sergienko, O V   +2 more
core   +1 more source

The origin of green icebergs in Antarctica [PDF]

, 1992
A comparison of samples from a translucent green iceberg with a core from the Ronne Ice Shelf revealed an excellent agreement in isotopic composition, crystal structure, and incorporated sediment particles.
Amos, Betts, Budd, Determann, Determann, Dieckmann, Dieckmann, Engelhardt, G. Dieckmann, Garrison, H. Hellmer, H. Oerter, Hellmer, J. Kipfstuhl, Jacobs, Jeffries, Jenkins, Kempema, Kipfstuhl, Kottmeier, Lee, Lewis, Morgan, Moulton, Oerter, Robin, Robin, Souchez, Swithinbank, Thomas, Thyssen, Vinje, W. Graf, Weeks, Zotikov   +34 more
core   +1 more source

Calving Fronts of Antarctica: Mapping and Classification

Remote Sensing, 2013
Antarctica is surrounded by a variety of large, medium and small sized ice shelves, glacier tongues and coastal areas without offshore floating ice masses. We used the mosaic of the Radarsat-1 Antarctica Mapping Project (RAMP) Antarctic Mapping Mission 1
Christine Wesche, Daniela Jansen, Wolfgang Dierking   +2 more
doaj   +1 more source

Predicting the steady-state isochronal stratigraphy of ice shelves using observations and modeling [PDF]

The Cryosphere, 2022
Ice shelves surrounding the Antarctic perimeter moderate ice discharge towards the ocean through buttressing. Ice-shelf evolution and integrity depend on the local surface accumulation, basal melting and on the spatially variable ice-shelf viscosity ...
V. Višnjević, R. Drews, C. Schannwell, I. Koch, S. Franke, D. Jansen, O. Eisen, O. Eisen   +7 more
doaj   +1 more source

'Calving laws', 'sliding laws' and the stability of tidewater glaciers [PDF]

, 2007
A new calving criterion is introduced, which predicts calving where the depth of surface crevasses equals ice height above sea level. Crevasse depth is calculated from strain rates, and terminus position and calving rate are therefore functions of ice ...
Brown, Douglas I. Benn, Nicholas R.J. Hulton, Raymond, Ruth H. Mottram, Van der Veen   +5 more
core   +1 more source

Clouds drive differences in future surface melt over the Antarctic ice shelves

The Cryosphere, 2021
. Recent warm atmospheric conditions have damaged the ice shelves of the Antarctic Peninsula through surface melt and hydrofracturing, and could potentially initiate future collapse of other Antarctic ice shelves.
C. Kittel, C. Amory, Stefan Hofer, Cécile Agosta, N. Jourdain, E. Gilbert, Louis Le Toumelin, H. Gallee, X. Fettweis   +8 more
semanticscholar   +1 more source