Results 41 to 50 of about 32,496 (283)
ParticLS: Object-oriented software for discrete element methods and peridynamics [PDF]
Computational Particle Mechanics (2021), 2022 ParticLS (\emph{Partic}le \emph{L}evel \emph{S}ets) is a software library that implements the discrete element method (DEM) and meshfree methods. ParticLS tracks the interaction between individual particles whose geometries are defined by level sets capable of capturing complex shapes.
arxiv +1 more source
Annals of Glaciology, 1989 Calving ice walls are an important ablation mechanism for deglaciation of calving bays occupied by temperate tide-water glaciers and polar marine ice sheets. Dangers inherent in calving bays have precluded detailed field studies of these calving ice walls.
openaire +2 more sources
IceLines – A new data set of Antarctic ice shelf front positions
Scientific Data, 2023 The frontal position of an ice shelf is an important parameter for ice dynamic modelling, the computation of mass fluxes, mapping glacier area change, calculating iceberg production rates and the estimation of ice discharge to the ocean.
Celia A. Baumhoer +3 more
doaj +1 more source
Parameterization for subgrid-scale motion of ice-shelf calving fronts [PDF]
The Cryosphere, 2010 Abstract. A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model.
Marianne Haseloff +9 more
openaire +6 more sources
Tidewater glacier response to individual calving events
Journal of Glaciology, 2022 Tidewater glaciers have been observed to experience instantaneous, stepwise increases in velocity during iceberg-calving events due to a loss of resistive stresses.
Jason M. Amundson +2 more
doaj +1 more source
Finite Element Analysis of Calving From Ice Fronts [PDF]
Annals of Glaciology, 1982 The Antarctic ice sheet has almost no net annual ablation on its surface, so most mass losses are by iceberg calving along its perimeter, which may be either grounded in shallow water or floating in deep water. An ice cliff forms along the perimeter in both cases.
William F. Schmidt, James L. Fastook
openaire +2 more sources
Velocity response of Petermann Glacier, northwest Greenland, to past and future calving events [PDF]
The Cryosphere, 2018 Dynamic ice discharge from outlet glaciers across the Greenland Ice Sheet has increased since the beginning of the 21st century. Calving from floating ice tongues that buttress these outlets can accelerate ice flow and discharge of grounded ice. However,
E. A. Hill +3 more
doaj +1 more source
Automatic Extraction of the Calving Front of Pine Island Glacier Based on Neural Network
Remote Sensing, 2023 Calving front location plays a crucial role in studying ice–ocean interaction, mapping glacier area change, and constraining ice dynamic models. However, relying solely on visual interpretation to extract annual changes in the calving front of ice ...
Xiangyu Song, Yang Du, Jiang Guo
doaj +1 more source
Calving on tidewater glaciers amplified by submarine frontal melting [PDF]
O'Leary, M. and Christoffersen, P.: Calving on tidewater glaciers
amplified by submarine frontal melting, The Cryosphere Discuss., 6,
3287-3316, 2012, 2012 While it has been shown repeatedly that ocean conditions exhibit an important control on the behaviour of grounded tidewater glaciers, modelling studies have focused largely on the effects of basal and surface melting. Here, a finite-element model of stresses near the front of a tidewater glacier is used to investigate the effects of frontal melting on
arxiv +1 more source
Periodicity Intensity of the 24 h Circadian Rhythm in Newborn Calves Show Indicators of Herd Welfare [PDF]
Sensors 2022, 22(15), 5843, 2022 Circadian rhythms are a process of the sleep-wake cycle that regulates the physical, mental and behavioural changes in all living beings with a period of roughly 24 h. Wearable accelerometers are typically used in livestock applications to record animal movement from which we can estimate the activity type. Here, we use the overall movement recorded by
arxiv +1 more source