Ice fabric in an Antarctic ice stream interpreted from seismic anisotropy [PDF]
Geophysical Research Letters, 2017 Here we present new measurements of an anisotropic ice fabric in a fast moving (377 ma−1) ice stream in West Antarctica. We use ∼6000 measurements of shear wave splitting observed in microseismic signals from the bed of Rutford Ice Stream, to show that ...
Alan F. Baird +40 more
core +6 more sources
Extensive inland thinning and speed-up of Northeast Greenland Ice Stream. [PDF]
Nature, 2022 Khan SA +9 more
europepmc +2 more sources
Basal mechanics of Ice Stream B, west Antarctica: 2. Undrained plastic bed model [PDF]
, 2000 Based on the results of our studies of the physical conditions beneath Ice Stream B, we formulate a new analytical ice stream model, the undrained plastic bed model (henceforth the UPB model).
Engelhardt, Hermann F. +2 more
core +1 more source
Thermomechanical modelling of the Scandinavian ice sheet: implications for ice-stream formation [PDF]
, 1999 This work attempts to explain the fan-like landform assemblages observed in satellite images of the area covered by the former Scandinavian ice sheet (SIS). These assemblages have been interpreted as evidence of large ice streams within the SIS.
Baldwin, DJ, Payne, AJ
core +2 more sources
Multianalytical provenance analysis of Eastern Ross Sea LGM till sediments (Antarctica): Petrography, geochronology, and thermochronology detrital data [PDF]
, 2017 In order to reveal provenance of detrital sediments supplied by West Antarctic Ice Sheet (WAIS), 19 glaciomarine cores of Last Glacial Maximum age were analyzed from Eastern Ross Sea and Sulzberger Bay.
Andreucci, Benedetta +4 more
core +2 more sources
Frequency response of ice streams [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012 Changes at the grounding line of ice streams have consequences for inland ice dynamics and hence sea level. Despite substantial evidence documenting upstream propagation of frontal change, the mechanisms by which these changes are transmitted inland are not well understood.
Williams +3 more
openaire +3 more sources
Emergence of the Shackleton Range from beneath the Antarctic Ice Sheet due to glacial erosion [PDF]
, 2014 This paper explores the long-term evolution of a subglacial fjord landscape in the Shackleton Range, Antarctica. We propose that prolonged ice-sheet erosion across a passive continental margin caused troughs to deepen and lower the surrounding ice-sheet ...
Fogwill, C. J. +5 more
core +1 more source
Characteristics of the sticky spot of Kamb Ice Stream, West Antarctica [PDF]
, 2017 Amplitude analysis of reflection seismic data reveals the presence of highly variable bed conditions under the main sticky spot and adjacent regions of the Kamb Ice Stream (KIS—formerly ice stream C).
Alley, Richard B. +5 more
core +2 more sources
Spatiotemporal Dynamics of Ice Streams Due to a Triple-Valued Sliding Law [PDF]
, 2010 We show that a triple-valued sliding law can be heuristically motivated by the transverse spatial structure of an ice-stream velocity field using a simple one-dimensional model.
Sayag, Roiy, Tziperman, Eli
core +1 more source
High basal melting forming a channel at the grounding line of Ross Ice Shelf, Antarctica [PDF]
, 2016 Antarctica's ice shelves are thinning at an increasing rate, affecting their buttressing ability. Channels in the ice shelf base unevenly distribute melting, and their evolution provides insight into changing subglacial and oceanic conditions.
Catania, Ginny +6 more
core +1 more source