Seabed corrugations beneath an Antarctic ice shelf revealed by autonomous underwater vehicle survey: Origin and implications for the history of Pine Island Glacier [PDF]
Ice shelves are critical features in the debate about West Antarctic ice sheet change and sea level rise, both because they limit ice discharge and because they are sensitive to change in the surrounding ocean.
Dutrieux, Pierre +7 more
core +4 more sources
Ice-shelf Response to Ice-stream Discharge Fluctuations: II. Ideal Rectangular Ice Shelf [PDF]
AbstractAbstract. Ice-shelf thickness and velocity anomalies resulting from ice-stream discharge fluctuations are calculated for an ideal ice shelf fed by a single ice stream and confined within a rectangular coastal geometry. Ice-shelf response to periodic forcing is found to be linear (thickness and velocity anomalies oscillate at the forcing ...
Douglas R. Macayeal, Manfred A. Lange
openaire +1 more source
Residence Time and Transformation of Warm Circumpolar Deep Water on the Antarctic Continental Shelf
Inflow of warm modified Circumpolar Deep Water (CDW) onto the Antarctic continental shelf and into ice shelf cavities is a key driver of Antarctic ice shelf mass loss.
V. Tamsitt +3 more
doaj +1 more source
Rapid submarine ice melting in the grounding zones of ice shelves in West Antarctica. [PDF]
Enhanced submarine ice-shelf melting strongly controls ice loss in the Amundsen Sea embayment (ASE) of West Antarctica, but its magnitude is not well known in the critical grounding zones of the ASE's major glaciers.
Khazendar, Ala +8 more
core +1 more source
Marine ice in Larsen Ice Shelf [PDF]
It is argued that Larsen Ice Shelf contains marine ice formed by oceanic freezing and other mechanisms. Missing basal returns in airborne radar soundings and observations of a smooth and healed surface coincide downstream of regions where an ocean model predicts freezing.
Holland, Paul +4 more
openaire +3 more sources
Ice‐Front Retreat Controls on Ocean Dynamics Under Larsen C Ice Shelf, Antarctica
Iceberg A‐68 separated from the Larsen C Ice Shelf in July 2017 and the impact of this event on the local ocean circulation has yet to be assessed.
M. Poinelli +4 more
doaj +1 more source
The northern sector of the last British ice sheet : maximum extent and demise [PDF]
Strongly divided opinion has led to competing, apparently contradictory, views on the timing, extent, flow configuration and decay mechanism of the last British Ice Sheet.
Bradwell, Tom +11 more
core +2 more sources
Modeling ice shelf cavities in a z coordinate ocean general circulation model [PDF]
. Processes at the ice shelf-ocean interface and in particular in ice shelf cavities around Antarctica have an observable effect on the solutions of basin scale to global coupled ice-ocean models.
Losch, Martin
core +2 more sources
Foehn warming distributions in nonlinear and linear flow regimes: a focus on the Antarctic Peninsula [PDF]
The structure of lee-side warming during foehn events is investigated as a function of cross-barrier flow regime linearity. Two contrasting cases of westerly flow over the Antarctic Peninsula (AP) are considered – one highly nonlinear, the other ...
Elvidge, Andrew +4 more
core +1 more source
The processes responsible for freshwater flux from the Antarctic Ice Sheet (AIS), ice‐shelf basal melting and iceberg calving, are generally poorly represented in current Earth System Models (ESMs).
Darin Comeau +13 more
doaj +1 more source

