Results 31 to 40 of about 3,281,426 (206)
A Bayesian ice thickness estimation model for large-scale applications
Accurate estimations of ice thickness and volume are indispensable for ice flow modelling, hydrological forecasts and sea-level rise projections. We present a new ice thickness estimation model based on a mass-conserving forward model and a Bayesian ...
Mauro A. Werder +4 more
doaj +1 more source
The Mechanics of Glacier Flow [PDF]
AbstractThe flow of valley glaciers is examined in the light of recent laboratory experiments on the behaviour of ice under load. Simple expressions are given for the velocity distributions in some cases of laminar flow, and the modification of a pure laminar flow theory necessary to explain the formation of transverse crevasses and thrust planes is ...
openaire +1 more source
The flow of a polythermal glacier: McCall Glacier, Alaska, U.S.A. [PDF]
AbstractWe have analyzed the flow of polythermal McCall Glacier in Arctic Alaska. Using measurements of surface velocity from the 1970s and 1990s, together with measurements of ice thickness and surface slope, we have investigated both the present flow and seasonal and long-term flow variations.
B.T. Rabus, K. A. Echelmeyer
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Debris cover and surface melt at a temperate maritime alpine glacier: Franz Josef Glacier, New Zealand [PDF]
Melt rates on glaciers are strongly influenced by the presence of supraglacial debris, which can either enhance or reduce ablation relative to bare ice.
Brook, Martin S. +5 more
core +1 more source
Flow and structure in a dendritic glacier with bedrock steps
We analyse ice flow and structural glaciology of Shackleton Glacier, a dendritic glacier with multiple icefalls in the Canadian Rockies. A major tributary-trunk junction allows us to investigate the potential of tributaries to alter trunk flow and ...
HESTER JISKOOT +2 more
doaj +1 more source
A crystallographic investigation of glacier structure and the mechanism of glacier flow [PDF]
Abstract 1. Introduction (a) The transition of firn into glacier ice; glacier structure Glaciers are divided into two main parts: the accumulation area, firn region or névé where the annual accumulation in the form of snow exceeds the loss by melting, evaporation and wind erosion, and the ablation area or glacier tongue.
Max Ferdinand Perutz, Gerald Seligman
openaire +1 more source
Increased rate of acceleration on Pine Island Glacier strongly coupled to changes in gravitational driving stress [PDF]
Pine Island Glacier, Antarctica, has been undergoing several related changes for at least two decades; these include acceleration, thinning and grounding line retreat.
Scott, J. B. T. +27 more
core +2 more sources
The cause of debris-covered glacier thinning remains controversial. One hypothesis asserts that melt hotspots (ice cliffs, ponds, or thin debris) increase thinning, while the other posits that declining ice flow leads to dynamic thinning under thick ...
Leif S. Anderson +8 more
doaj +1 more source
Downwasting and supraglacial lake evolution on the debris-covered Ngozumpa Glacier, Khumbu Himal, Nepal [PDF]
In recent decades, the downwasting of several debris-covered glaciers in the Himalaya has led to the formation of large and potentially hazardous moraine- dammed lakes.
Hands, Kathryn Ann
core +2 more sources

