Results 31 to 40 of about 3,437 (252)

Quantification of seasonal and diurnal dynamics of subglacial channels using seismic observations on an Alpine glacier [PDF]

open access: yesThe Cryosphere, 2020
Water flowing below glaciers exerts a major control on glacier basal sliding. However, our knowledge of the physics of subglacial hydrology and its link with sliding is limited because of lacking observations. Here we use a 2-year-long dataset made of on-
U. Nanni   +6 more
doaj   +1 more source

Debris cover and surface melt at a temperate maritime alpine glacier: Franz Josef Glacier, New Zealand [PDF]

open access: yes, 2012
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

Near-margin ice thickness and subglacial water routing, Leverett Glacier, Greenland

open access: yesArctic, Antarctic, and Alpine Research, 2018
Ice thickness measurements near the margin of the Greenland Ice Sheet (GrIS) are relatively sparse, presenting issues for modeling ice-flow dynamics, ice-sheet change, and subglacial hydrology.
Neil Ross   +4 more
doaj   +1 more source

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

open access: yes, 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   +5 more
core   +1 more source

Some knowledge on and parameters of China's alpine hydrology

open access: yesShui kexue jinzhan, 2014
Based on field data from the Hulu Watershed in the Qilian Mountains of China,five types of experiential parameters of alpine hydrology are calibrated: ① wind-induced factors of gauge-measured precipitation; ② threshold air temperature (day and half ...
CHEN Rensheng, KANG Ersi, DING Yongjian
doaj   +1 more source

Subsurface hydrology of an overdeepened cirque glacier [PDF]

open access: yesJournal of Glaciology, 2011
AbstractTo investigate the subsurface hydrological characteristics of an overdeepened cirque glacier, nine boreholes were drilled to the bed of West Washmawapta Glacier, British Columbia, Canada, in summer 2007. All holes were surveyed with a video camera, and four were subsequently instrumented with a combination of pressure transducers, thermistors ...
Christine F. Dow   +4 more
openaire   +1 more source

Worldwide version-controlled database of glacier thickness observations [PDF]

open access: yesEarth System Science Data, 2020
Although worldwide inventories of glacier area have been coordinated internationally for several decades, a similar effort for glacier ice thicknesses was only initiated in 2013.
E. Welty   +19 more
doaj   +1 more source

An energy-balance model for debris-covered glaciers including heat conduction through the debris layer [PDF]

open access: yes, 2010
Extensive covers of supraglacial debris are often present in glacier ablation areas, and it is essential to assess exactly how the debris affects glacier melt rates.
Brock, B.W.   +5 more
core   +1 more source

The Importance of Solving Subglaciar Hydrology in Modeling Glacier Retreat: A Case Study of Hansbreen, Svalbard

open access: yesHydrology
Arctic tidewater glaciers are retreating, serving as key indicators of global warming. This study aims to assess how subglacial hydrology affects glacier front retreat by comparing two glacier–fjord models of the Hansbreen glacier: one incorporating a ...
Eva De Andrés   +3 more
doaj   +1 more source

Brief communication: Heterogenous thinning and subglacial lake activity on Thwaites Glacier, West Antarctica [PDF]

open access: yesThe Cryosphere, 2020
A system of subglacial lakes drained on Thwaites Glacier from 2012–2014. To improve coverage for subsequent drainage events, we extended the elevation and ice-velocity time series on Thwaites Glacier through austral winter 2019.
A. O. Hoffman   +4 more
doaj   +1 more source

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