Glaciers and the Shallow Ice Approximation
A Bayesian hierarchical model for glacial dynamics based on the shallow ice approximation and its evaluation using analytical solutions
... for glaciers are derived from the following considerations. First, glaciers are modeled as very slowly moving and viscous ...net ice flux moving in or out of an infinitesimal column of the glacier ...
20
Accuracy of the zeroth- and second-order shallow-ice approximation – numerical and theoretical results
... In ice sheet modelling, the shallow-ice approxi- mation (SIA) and second-order shallow-ice approximation (SOSIA) schemes are approaches to approximate the solu- tion of the full ...
18
The microbiome of glaciers and ice sheets
... ON GLACIERS AND ICE SHEETS — LINKS WITH THE LOCAL AND GLOBAL EARTH SYSTEM Many recent studies have attempted to measure microbial activities in situ on glacier surfaces and have often found signi fi cant ...
Calving glaciers and ice shelves
... the ice geometry and the depth of the adjacent water ...the ice is computed using a discrete version of Newton’s equations of motion, using inelastic potentials to calculate the interactions of individual ...
30
Mountain glaciers: on thinning ice
... mountain glaciers concerns regional and global water ...precipitation. Glaciers’ importance to water supplies is minor in monsoonal climates, moderate in most mid-latitude basins and major in seasonally or ...
14
Dynamically coupling full Stokes and shallow shelf approximation for marine ice sheet flow using Elmer/Ice (v8.3)
... of ice dynamics over long time spans without in- troducing artifacts caused by the application of approxima- tions in parts of the domain where they are not ...the Ice Sheet System Model (ISSM; Larour et ...
14
Models for polythermal ice sheets and glaciers
... Polythermal ice sheets and glaciers contain both cold ice and temperate ...such ice masses, accounting for the possibility of gravity- and pressure-driven water drainage according to Darcy’s ...
11
Microbial diversity on Icelandic glaciers and ice caps
... relative abundance in cryoconite holes (Edwards et al., 2013, 2014). Archaeal Communities We were also able to confirm the presence of archaea in our samples. Currently, only very few studies have documented the presence ...
17
Analytical solutions for the surface response to small amplitude perturbations in boundary data in the shallow-ice-stream approximation
... The shallow-ice-stream approximation is commonly used to describe large-scale ice stream flow over a weak bed, while the shallow-ice-sheet approximation forms the basis of ...
17
Surge glaciers during the Little Ice Age in the Pyrenees
... the ice masses were ...the glaciers during the LIA within the glacier landsystem, as it has been defined in Evans (2003), context and morphosequence ...
32
A statistical fracture model for Antarctic ice shelves and glaciers
... enough ice to raise sea level by more than 65 m if both ice sheets were to melt ...future ice sheet mass balance depends on our ability to model these ice sheets, which is limited by our ...
27
KARTHAUS-2011 ICE SHEETS AND GLACIERS IN THE CLIMATE SYSTEM
... The course will be held in Karthaus , which is a charming old village in the Schnalstal, about 20 km northwest of Merano, northern Italy.The logistic centre, where all meals will be se[r] ...
5
Origins of foliations and related phenomena in valley glaciers and ice sheets
... surge-type glaciers in Svalbard are receiving increasing amounts of structural attention ...Brøggerhalvøya glaciers included in this study, there is structural evidence to suggest that Pedersenbreen has ...
289
The first complete inventory of the local glaciers and ice caps on Greenland
... Arendt, A., Bolch, T., J.G. Cogley, J.G, Gardner, A., Hagen, J.- O., Hock, R., Kaser, G., Pfeffer, W.T., Moholdt, G., Paul, F., Radi´c, V., Andreassen, L., Bajracharya, S., Beedle, M., Berthier, E., Bhambri, R., Bliss, ...
13
Aspect controls the survival of ice cliffs on debris-covered glaciers
... Supraglacial ice cliffs exist on debris-covered glaciers worldwide, but despite their importance as melt hot spots their life cycle is lit- tle ...debris-covered glaciers in High Mountain Asia (HMA) ...
7
Little Ice Age glaciers and climate in the Mediterranean mountains: a new analysis
... lower-gradient glaciers that occupy larger dolines are more prone to decay, such as the Maja e Kolacit glacier in Albania (see ...avalanche-fed glaciers in karstic terrain appears to suggest that despite ...
31
The future sea-level rise contribution of Greenland's glaciers and ice caps
... the ice sheet, close to the regions where this study finds the largest ...the ice sheet while the mass balance model in the present study is mainly forced with RCM output from grid cells that are ...
15
The future sea-level rise contribution of Greenland’s glaciers and ice caps
... Greenland’s glaciers and ice caps Machguth, H ; Rastner, P ; Bolch, T ; Mölg, N ; Sørensen, L Sandberg ; Aðalgeirsdottir, G ; van Angelen, J H ; van den Broeke, M R ; Fettweis, X Abstract: We calculate the ...
15
Impact of frontal ablation on the ice thickness estimation of marine-terminating glaciers in Alaska
... of ice thickness are needed as initial conditions for glacier models, for attempting to understand how glaciers respond to climate change and for quantifying their contribution to sea-level ...importance, ...
16
Mass changes in Arctic ice caps and glaciers: implications of regionalizing elevation changes
... and Ice Data Center (NSIDC) for providing the ICESat data; the National Spatial-Intelligence Agency (NGA) for the Svalbard and Iceland DEM; the Ministry of Economy, Trade, and Industry (METI) of Japan and the ...
12