Results 71 to 80 of about 2,982 (205)
Transition Between Mechanical and Geometric Controls in Glacier Crevassing Processes
Geophysical Research LettersHerein, fast fracture initiation in glacier ice is modeled using a Material Point Method and a simplified constitutive law describing tensile strain softening.
Hugo Rousseau +3 more
doaj +1 more source
Annals of Glaciology, 2019 Glacial seismicity provides important insights into glacier dynamic processes. We study the temporal distribution of cryogenic seismic signals (icequakes) at Holtedahlfonna, Svalbard, between April and August 2016 using a single three-component sensor ...
Andreas Köhler +3 more
doaj +1 more source
Structural glaciology of Isunguata Sermia, West Greenland
Journal of Maps, 2018 We present a 1:42,000 scale map of Isunguata Sermia, a land-terminating outlet glacier draining the western-sector of the Greenland Ice Sheet. Structure-from-Motion software applied to ∼3,600 aerial images collected by a fixed-wing unmanned aerial ...
Christine Jones +3 more
doaj +1 more source
Basal crevasses in Larsen C Ice Shelf and implications for their global abundance
, 2011 . Basal crevasses extend upwards from the base of ice bodies and can penetrate more than halfway through the ice column under conditions found commonly on ice shelves. As a result, they may locally modify the exchange of mass and energy between ice shelf
E. C. King +5 more
core +1 more source
Primary Transverse Crevasses [PDF]
Journal of Glaciology, 1969 Measurements of strain-rates on a temperate glacier in a region of initial transverse fracturing indicate a critical strain-rate of 3.5±0.5 × 10−5 d−1, associated with a regional strain-rate gradient of 5 × 10−8 d−1 m−1. At only one section of the glacier is the theoretical longitudinal strain-rate (Nye, 1959[c]) in approximate agreement with the value
openaire +1 more source
Glacial crevasses in the Olympic Mountains, Olympic National Park, date unknown
, 1881 Crevasses.
Unknown
core
Assessing future ice shelf hydrofracture vulnerability in the ISMIP6 ensemble
Journal of GlaciologyUnderstanding the possibility of future ice shelf collapses similar to that of the Larsen B is critical for improving sea-level-rise projections due to the restraint on upstream flow that ice shelves provide.
Benjamin Reynolds, Sophie Nowicki
doaj +1 more source
Horizontal force-balance calving laws: Ice shelves, marine- and land-terminating glaciers
Journal of GlaciologyPredicting calving in glacier models is challenging, as observations of diverse calving styles appear to contradict a universal calving law. Here, we generalize and apply the analytical Horizontal Force-Balance fracture model from ice shelves to land ...
Niall Bennet Coffey, Ching-Yao Lai
doaj +1 more source
AUTOMATYCZNA DETEKCJA I LOKALIZACJA WSTRZĄSÓW MIKROSEJSMICZNYCH NA LODOWCU HANSA NA SPITSBERGENIE [PDF]
Przegląd GeofizycznyThe article presents preliminary results of seismicity studies of Hans Glacier in Spitsbergen. Data from the period 26.07-02.08.2021 were recorded using a network of 8 single-component, short-period geophones located on the surface of the glacier.
Mateusz Olszewski, Wojciech Gajek
doaj +1 more source
Glacier processes from seismic recordings on Sørsdal Glacier, East Antarctica
Journal of GlaciologyA catalogue of seismic events is produced and analysed for Sørsdal Glacier, East Antarctica. Recordings were made using an irregular array of three broadband and eight short-period seismometers, with approximately 3 km aperture, deployed slightly ...
Jared C Magyar +7 more
doaj +1 more source