Subglacial drainage processes at a High Arctic polythermal valley glacier [PDF]
Journal of Glaciology, 2005 AbstractDye-tracer experiments undertaken over two summer melt seasons at polythermal John Evans Glacier, Ellesmere Island, Canada, were designed to investigate the character of the subglacial drainage system and its evolution over a melt season. In both summers, dye injections were conducted at several moulins and traced to a single subglacial outflow.
Bingham, Robert George +3 more
openaire +5 more sources
Will subglacial rhyolite eruptions be explosive or intrusive? Some insights from analytical models. [PDF]
, 2007 Simple analytical models of subglacial eruptions are presented, which simulate evolving subglacial cavities and volcanic edifices during rhyolitic eruptions beneath temperate glaciers.
Gilbert, Jennie S. +2 more
core +6 more sources
Chemical and isotopic switching within the subglacial environment of a high Arctic glacier. [PDF]
, 2006 Natural environmental isotopes of nitrate, sulphate and inorganic carbon are discussed in conjunction with major ion chemistry of subglacial runoff from a High Arctic glacier, Midre Lovénbreen, Svalbard. The chemical composition of meltwaters is observed
Hodson, Andrew +2 more
core +5 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.
Tuffen, H +3 more
core +5 more sources
Subglacial Processes and Subglacial Hydrology
, 2016 The hydrology of glaciers is known to have a significant influence on glacier dynamics. Rapid variations in dynamics can occur due to changes in the glacial and subglacial hydrology. However, our understanding of the subglacial drainage system is based on few direct and usually short-term observations.
Lefeuvre, Pierre-Marie Benoit Émile
openaire +2 more sources
Products of an effusive subglacial rhyolite eruption: Blahnukur, Torfajokull, Iceland. [PDF]
, 2001 . We present field observations from Blahnukur, a small volume (400 m thick. Lithofacies associations attest to complex patterns of volcano-ice interaction.
Dave McGarvie +8 more
core +5 more sources
Tracking coarse sediment in an Alpine subglacial channel using radio-tagged particles
Journal of Glaciology, 2023 We present a method for tracking radio-tagged pebbles and cobbles through subglacial meltwater channels under shallow temperate glaciers. Natural particles tagged with active radio transmitters were injected directly into a large subglacial channel 300 m
Matt Jenkin +6 more
doaj +1 more source
Drainage and refill of an Antarctic Peninsula subglacial lake reveal an active subglacial hydrological network [PDF]
The Cryosphere, 2022 The presence of subglacial lakes and subglacial hydrological networks under the East and West Antarctic ice sheets is now relatively well understood, whilst their influence on ice dynamics is the subject of ongoing research.
D. A. Hodgson +4 more
doaj +1 more source
Constraints on subglacial melt fluxes from observations of active subglacial lake recharge
Journal of Glaciology, 2023 Active subglacial lakes provide a rare glimpse of the subglacial environment and hydrological processes at play. Several studies contributed to establishing active subglacial lake inventories and document lake drainage and connection, but few focused on ...
George Malczyk +4 more
doaj +1 more source
Models of ice melting and edifice growth during subglacial basaltic eruptions. [PDF]
, 2007 Models of the early stages of basaltic eruptions beneath temperate glaciers are presented that consider the evolving sizes of volcanic edifices emplaced within subglacial cavities.
Tuffen, Hugh
core +4 more sources