Results 81 to 90 of about 2,982 (205)

Fracture criteria and tensile strength for natural glacier ice calibrated from remote sensing observations of Antarctic ice shelves

Journal of Glaciology
The conditions under which ice fractures and calves icebergs from Antarctic ice shelves are poorly understood due largely to a lack of relevant observations. Though previous studies have estimated the stresses at which ice fractures in the laboratory and
Sarah Wells-Moran, Meghana Ranganathan, Brent Minchew   +2 more
doaj   +1 more source

Automated detection of basal icequakes and discrimination from surface crevassing

Annals of Glaciology, 2019
Icequakes at or near the bed of a glacier have the potential to allow us to investigate the interaction of ice with the underlying till or bedrock. Understanding this interaction is important for studying basal sliding of glaciers and ice streams, a ...
Thomas S. Hudson, Jonathan Smith, Alex M. Brisbourne, Robert S. White   +3 more
doaj   +1 more source

Structural characteristics of flow units in Svalbard valley glaciers and their utility for investigating ice-dynamic changes over centennial timescales

Journal of Glaciology
The aim of this paper is to characterise the internal structures and ice-flow history of representative valley glaciers in Svalbard and infer from them dynamic changes over centennial timescales.
Stephen J.A. Jennings, Michael J. Hambrey, Neil F. Glasser, Bryn Hubbard, Timothy D. James, Nicholas G. Midgley   +5 more
doaj   +1 more source

Joint geodetic and seismic analysis of surface crevassing near a seasonal glacier-dammed lake at Gornergletscher, Switzerland

Annals of Glaciology, 2019
Seasonal lake Gornersee forms at the confluence of Gornergletscher and Grenzgletscher, Switzerland, and experiences outburst floods annually in midsummer.
Louis Garcia, Karen Luttrell, Debi Kilb, Fabian Walter   +3 more
doaj   +1 more source

Fourth District Map Showing Crevasses and Area Overflow Flood of 1893

, 1893
Fourth District Map Showing Crevasses and Area Overflow Flood of 1893 Mississippi River Commission drawn by B.J. Olivera. 20.5 x 16.

core   +1 more source

Drone-Borne LiDAR and Photogrammetry Together with Historical Data for Studying a Paleo-Landslide Reactivated by Road-Cutting and Barrier Construction outside Jerusalem

Geotechnics
Assessment of landslide hazards often depends on the ability to track possible changes in natural slopes. To that end, historical air photos can be useful, particularly when slope stability is compromised by visible cracking.
Yaniv Darvasi, Ben Laugomer, Ido Shicht, John K. Hall, Eli Ram, Amotz Agnon   +5 more
doaj   +1 more source

Comprehensive assessment of stress calculations for crevasse depths and testing with crevasse penetration as damage

The Cryosphere
Abstract. Crevasse depth calculations with the zero stress approximation or linear elastic fracture mechanics are used in many applications, including calving laws, determination of stable cliff heights, shelf vulnerability to collapse via hydrofracture, and damage evolution in ice.
Benjamin Reynolds, Sophie Nowicki, Kristin Poinar   +2 more
openaire   +1 more source

Vertical Extension of the Subglacial Drainage System into Basal Crevasses

, 2010
Water plays a first-order role in basal sliding of glaciers and ice sheets and is often a key constituent of accelerated glacier motion1, 2, 3, 4. Subglacial water is known to occupy systems of cavities and conduits at the interface between ice and the ...
Joel T. Harper, Humphrey, Neil F., John H. Bradford, Harper, Joel T., Neil F. Humphrey, Toby W. Meierbachtol, Meierbachtol, Toby W., Bradford, John H.   +7 more
core   +1 more source

Crevasses on the Priestley Glacier

, 2016
This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.
University Of Melbourne. Department Of Geology
core  

Progression of the surge in the Negribreen Glacier System from two years of ICESat-2 measurements

Journal of Glaciology
The state-of-the-art measurement capabilities of ICESat-2 allow high spatiotemporal resolution of complex ice-dynamic processes that occur during a surge.
Thomas Trantow, Ute Christina Herzfeld
doaj   +1 more source