Results 51 to 60 of about 3,925 (217)

Experiments with Model Glaciers

The Journal of Geology, 1926
A piece of apparatus was designed with which it was hoped to determine the relative rates at which glacier ice would respond by flow to the same head at varying depth pressures. The primary object of the experiments was frustrated, but measurements were secured which permitted the plotting of a curve showing the approximate relation of rate of flow and
openaire   +3 more sources

Assessing the influence of the Merzbacher Lake outburst floods on discharge using the hydrological model SWIM in the Aksu headwaters, Kyrgyzstan/NW China [PDF]

, 2013
Glacial lake outburst floods (GLOF) often have a significant impact on downstream users. Including their effects in hydrological models, identifying past occurrences and assessing their potential impacts are challenges for hydrologists working in ...
Wortmann, M., Su, B., Kundzewicz, Z.W., Krysanova, V., Li, X, Kundzewicz, ZW, Krysanova, V, Wortmann, M, Su, B, Li, X.   +9 more
core   +1 more source

Calving rate linearly dependent on sub-aerial terminus cliff height at tidewater glaciers around the Antarctic Peninsula

Annals of Glaciology
Calving is the process of ice loss through the breaking of ice from a glacier’s terminus. Ice-flow models describe calving in various ways, although no consensus exists on the optimal approach.
Richard Parsons, Sainan Sun, Gudmundur Hilmar Gudmundsson   +2 more
doaj   +1 more source

Increased mass loss of glaciers in Volcán Domuyo (Argentinian Andes) between 1962 and 2020, revealed by aerial photos and satellite stereo imagery

Journal of Glaciology, 2023
We present geodetic mass-balance estimates for ten glaciers (22.6 ± 1.1 km2) around Volcán Domuyo between 1962 and 2020 (and 46 glaciers covering 29 ± 1.5 km2 between 1984 and 2020), derived from airborne, ASTER and Pléiades imagery.
Daniel Falaschi, Etienne Berthier, Joaquín M. C. Belart, Claudio Bravo, Mariano Castro, Marcelo Durand, Ricardo Villalba   +6 more
doaj   +1 more source

A minimal model of a tidewater glacier [PDF]

Annals of Glaciology, 2005
AbstractWe propose a simple, highly parameterized model of a tidewater glacier. The mean ice thickness and the ice thickness at the glacier front are parameterized in terms of glacier length and, when the glacier is calving, water depth. We use a linear relation between calving rate and water depth.
Oerlemans, J., Nick, Faezeh Maghami
openaire   +2 more sources

Melting of the glacier base during a small-volume subglacial rhyolite eruption: evidence from Blahnukur, Iceland. [PDF]

, 2002
Although observations of recent volcanic eruptions beneath Vatnajokull, Iceland have improved the understanding of ice deformation and meltwater drainage, little is known about the processes that occur at the glacier base.
Pinkerton, H., Tuffen, H, McGarvie, DW, McGarvie, Dave, Tuffen, H., Pinkerton, H, Gilbert, J.S., Gilbert, JS   +7 more
core   +1 more source

Temporal downscaling of glaciological mass balance using seasonal observations

Journal of Glaciology, 2023
Glaciological mass-balance measurements have been the backbone of internationally coordinated glacier monitoring. The resulting annual observations have been used to understand glacier reactions to climate change, and to assess both regional and global ...
Michael Zemp, Ethan Welty
doaj   +1 more source

Modeling 2m air temperatures over mountain glaciers: Exploring the influence of katabatic cooling and external warming

, 2015
Air temperature is one of the most relevant input variables for snow and ice melt calculations. However, local meteorological conditions, complex topography, and logistical concerns in glacierized regions make the measuring and modeling of air ...
J. M. Shea, F. Pellicciotti, Ayala, Alvaro, A. Ayala, Shea, J. M., Pellicciotti, Francesca   +5 more
core   +1 more source

Glacier projections sensitivity to temperature-index model choices and calibration strategies

Annals of Glaciology, 2023
The uncertainty of glacier change projections is largely influenced by glacier models. In this study, we focus on temperature-index mass-balance (MB) models and their calibration.
Lilian Schuster, David R. Rounce, Fabien Maussion   +2 more
doaj   +1 more source

A Monte-Carlo error analysis for basal sliding velocity calculations [PDF]

, 2006
Since glacier beds are mostly inaccessible, numerical inversion of the surface velocity field provides a valuable method for calculating the basal shear stress and sliding velocity. However, previous theoretical studies (limited either to planar slabs or
Nienow, Peter, Chandler, D. M., Hubbard, B. P.   +2 more
core   +1 more source