Results 71 to 80 of about 522,209 (193)

Sea-Ice Mass Balance Influenced by Ice Shelves [PDF]

, 2013
Sea ice fastened to coasts, icebergs and ice shelves is of crucial importance for climateand ecosystems. At the same time, it is not represented in climate models and many processes affecting its energy- and mass balance are currently only poorly ...
Nicolaus, Marcel, Hoppmann, Mario, Willmes, Sascha, Paul, Stephan, Heinemann, Günther, Timmermann, Ralph   +5 more
core  

Change in iceberg calving behavior preceded North Sea ice shelf disintegration during the last deglaciation

Nature Communications
Understanding how regime shifts in iceberg calving behavior affect ice shelf stability remains a challenge for numerical models. This is an important question as we consider the fate of the ice shelves that currently buttress the Antarctic Ice Sheet and ...
James D. Kirkham, Kelly A. Hogan, Robert D. Larter, Neil S. Arnold, Ed Self, Ken Games, Jeremy C. Ely, Chris D. Clark, James D. Scourse, Calvin Shackleton, Jan Erik Arndt, Claus-Dieter Hillenbrand, Mads Huuse, Margaret A. Stewart, Dag Ottesen, Julian A. Dowdeswell   +15 more
doaj   +1 more source

Roughness of Ice Shelves Is Correlated With Basal Melt Rates

, 2021
Ice shelf collapse could trigger widespread retreat of marine‐based portions of the Antarctic ice sheet. However, little is known about the processes that control the stability of ice shelves.
Thouless, M. D., Watkins, Ray H., M. D. Thouless, Bassis, Jeremy N., Ray H. Watkins, Jeremy N. Bassis   +5 more
core   +1 more source

A temperate former West Antarctic ice sheet suggested by an extensive zone of bed channels [PDF]

, 2014
We present radio-echo sounding data and satellite imagery, revealing a series of ancient large sub-parallel subglacial channels preserved in the region between the Möller and Foundation Ice Streams, West Antarctica.
Martin J. Siegert, Tom A. Jordan, Rippin, David M., Jordan, Tom A., Ross, N, Siegert, MJ, Corr, HFJ, Siegert, Martin J., Rippin, DM, Le Brocq, Anne, Hugh F.J. Corr, Jordan, TA, Kathryn C. Rose, Le Brocq, Anne M., Rose, Kathryn C., Bingham, RG, Le Brocq, AM, Anne M. Le Brocq, Ross, Neil, Fausto Ferraccioli, Rose, KC, Ferraccioli, F, Ferraccioli, Fausto, Corr, Hugh F.J., Robert G. Bingham, Neil Ross, David M. Rippin, Bingham, Robert G., K.C. Rose (9005840), et al. (281964)   +29 more
core   +1 more source

Unanchoring of Antarctic ice shelves over the past 5 decades

, 2023
Mass loss of the Antarctic Ice Sheet has been primarily driven by thinning of the floating ice shelves that fringe the ice sheet, reducing their buttressing potential and causing land ice to accelerate into the ocean.
Miles, Bertie, Bingham, Rob
core   +1 more source

Landsat mosaics of Antarctic Ice Shelves from 2022

, 2023
Mass loss of the Antarctic Ice Sheet has been primarily driven by thinning of the floating ice shelves that fringe the ice sheet, reducing their buttressing potential and causing land ice to accelerate into the ocean.
School of GeoSciences, Miles, Bertie, Bingham, Robert   +2 more
core   +1 more source

Ocean-excited plate waves in the Ross and Pine Island Glacier ice shelves

Journal of Glaciology, 2018
Ice shelves play an important role in buttressing land ice from reaching the sea, thus restraining the rate of grounded ice loss. Long-period gravity-wave impacts excite vibrations in ice shelves that can expand pre-existing fractures and trigger iceberg
ZHAO CHEN, PETER D. BROMIRSKI, PETER GERSTOFT, RALPH A. STEPHEN, DOUGLAS A. WIENS, RICHARD C. ASTER, ANDREW A. NYBLADE   +6 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, Frank Pattyn, Erika G. Simon, Torsten Albrecht, Stephen Cornford, Reinhard Calov, Christophe Dumas, Fabien Gillet-Chaulet, Heiko Goelzer, Nicholas R. Golledge, Ralf Greve, Matthew J. Hoffman, Angelika Humbert, Elise Kazmierczak, Thomas Kleiner, Gunter R. Leguy, William H. Lipscomb, Daniel Martin, Mathieu Morlighem, Sophie Nowicki, David Pollard, Stephen Price, Aurélien Quiquet, Hélène Seroussi, Tanja Schlemm, Johannes Sutter, Roderik S. W. van de Wal, Ricarda Winkelmann, Tong Zhang   +28 more
doaj   +1 more source

Quantifying Antarctic‐Wide Ice‐Shelf Surface Melt Volume Using Microwave and Firn Model Data: 1980 to 2021

Geophysical Research Letters, 2023
Antarctic ice‐shelf stability is threatened by surface melt, which has been implicated in several ice‐shelf collapse events over recent decades. Here, we first analyze cumulative days of wet snow/ice status (“melt days”) for melt seasons from 1980 to ...
Alison F. Banwell, Nander Wever, Devon Dunmire, Ghislain Picard   +3 more
doaj   +1 more source

Antarctic ice shelves as ocean world analogs

, 2023
The search for life beyond Earth is a primary goal of NASA, and in our solar system ocean worlds such as Jupiter’s moon Europa are among the most promising targets.
Lawrence, Justin
core   +1 more source