Ice velocity changes in the Ross and Ronne sectors observed using satellite radar data from 1997 and 2009 [PDF]
The Cryosphere, 2012 We report changes in ice velocity of a 6.5 million km<sup>2</sup> region around South Pole encompassing the Filchner-Ronne and Ross Ice Shelves and a significant portion of the ice streams and glaciers that constitute their catchment areas ...
B. Scheuchl, J. Mouginot, E. Rignot
doaj +1 more source
Modeling Ice‐Crystal Fabric as a Proxy for Ice‐Stream Stability [PDF]
Journal of Geophysical Research: Earth Surface, 2021 AbstractThe crystal structure within an ice sheet evolves in response to deformation; hence ice‐crystal fabric records ice‐flow history. However, the complexity of crystal‐fabric evolution, and the lack of model results with which to compare data, limit the usefulness of fabric measurements, particularly in areas with complex ice dynamics. Here, we use
David A. Lilien +3 more
openaire +2 more sources
Trimlines, blockfields and the vertical extent of the last ice sheet in southern Ireland [PDF]
, 2015 The research reported here was supported by UK NERC grant NER/B/S/2001/0919Trimlines separating glacially abraded lower slopes from blockfield-covered summits on Irish mountains have traditionally been interpreted as representing the upper limit of the ...
Stone, John O. +3 more
core +1 more source
Subtemperate sliding reduces periodicity of ice stream temporal variability in a simple model
Journal of GlaciologyUnderstanding the formation and evolution of fast flowing ice streams is essential to projecting the response of ice sheets to climate forcings. Slow-flowing or stagnant ice streams can slide at low velocities over a bed that is below the bulk melting ...
Logan Elliott Mann +3 more
doaj +1 more source
Treatment of the ice-shelf backpressure and buttressing in two horizontal dimensions
Journal of GlaciologyThe ice discharge from the grounded parts of marine ice sheets into the ocean is modulated by their floating extensions – ice shelves. The ice-shelf impact on the grounded ice is typically described as ‘backpressure’ or ‘buttressing’.
Olga Sergienko
doaj +1 more source
Thermal controls on ice stream shear margins
Journal of Glaciology, 2021 Ice stream discharge responds to a balance between gravity, basal friction and lateral drag. Appreciable viscous heating occurs in shear margins between ice streams and adjacent slow-moving ice ridges, altering the temperature-dependent viscosity ...
Pierce Hunter +4 more
doaj +1 more source
Bedrock controls on subglacial landform distribution and geomorphological processes : evidence from the Late Devensian Irish Sea Ice Stream [PDF]
, 2010 Ice streams play an important role as regulators of the behaviour of modern ice sheets, taking the form of corridors of fast flowing ice. Similar zones of fast moving ice have also been recognised draining the margins of the Late Devensian British and ...
Everest, Jez +2 more
core +1 more source
Summer CO2 evasion from streams and rivers in the Kolyma River basin, north-east Siberia [PDF]
, 2013 Inland water systems are generally supersaturated in carbon dioxide (CO2) and are increasingly recognized as playing an important role in the global carbon cycle.
Holmes, Robert +15 more
core +1 more source
Reconstructing ice dynamics in the central sector of the last British-Irish Ice Sheet [PDF]
, 2010 The central sector (NW England and Scottish borders) of the last British-Irish Ice Sheet exhibits a palimpsest glacial geological and geomorphological signature characteristic of multi-phase ice flow and ice-marginal fluctuations. Despite its influential
LIVINGSTONE, STEPHEN,JOHN +1 more
core
Streamlined hard beds formed by palaeo-ice streams: a review [PDF]
, 2015 Fast-flowing ice streams occur within modern ice sheets and also operated in Pleistocene ice sheets. The reconstruction of palaeo-ice streams normally relies on the mapping of mega-scale glacial lineations (MSGLs) and drumlins composed of soft sediment ...
Putkinen, Niko +4 more
core +1 more source