Results 91 to 100 of about 131,619 (292)
Locating a complex subglacial drainage network using seismic arrays on Glacier d’Otemma, Switzerland
Journal of GlaciologyGlaciers actively store and release meltwater with significant impacts on glacier flow velocity and downstream environments. The evolution of this drainage system is a key component in understanding glacier dynamics.
Eva Wolf +7 more
doaj +1 more source
A Geophysical Investigation of a Rock Glacier in the Canadian Rockies
, 2016 In this project a geophysical survey was conducted on the rock glacier in the Helen Lake watershed (Ban National Park, Alberta, Canada) to investigate its internal structure. Geophysical methods involved electrical resistivity tomography, seismic refraction and ground penetrating radar.
openaire +2 more sources
Subglacial drainage processes at a High Arctic polythermal valley glacier [PDF]
, 2005 Dye-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,
Nienow, Peter W. +5 more
core +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT In this study, we report the first documented occurrence of the Icelandic Vedde Ash (VA) in the Bohemian Forest, identified within palaeolake sediments from Stará Jímka, Czechia, representing the first Icelandic tephra layer identified in Czechia.
Verena Meier +3 more
wiley +1 more source
Brine, englacial structure and basal properties near the terminus of McMurdo Ice Shelf, Antarctica
Annals of Glaciology, 2017 We collected ~1300 km of ground-penetrating radar profiles over McMurdo Ice Shelf, Antarctica, using frequencies between 40 and 400 MHz to determine extent, continuity and depth to the brine.
S. Campbell +3 more
doaj +1 more source
Air temperature distribution and energy balance modelling of a debris-covered glacier [PDF]
, 2016 Near-surface air temperature is an important determinant of the surface energy balance of glaciers that is often represented by constant linear temperature gradients in models.
Brock, B.W. +13 more
core +1 more source
New constraints on the postglacial evolution of Lago Maggiore, Northern Italy
Journal of Quaternary Science, EarlyView.ABSTRACT Lago Maggiore is situated in an overdeepened valley reach at the southern margin of the European Alps, and its thick sediment infill allows the reconstruction of the postglacial valley and lake evolution. We study here the sedimentary succession in the lower Ossola Valley, which is infilled by ~500 m of deposits. In a marginal position, a core
Lukas Gegg +9 more
wiley +1 more source
Review of the Salpausselkä ice‐marginal formations in Finland
Journal of Quaternary Science, EarlyView.ABSTRACT Extensive Salpausselkä ice‐marginal formations were deposited in southern and eastern Finland during the Weichselian deglaciation. These comprise three major ridges (I, II, and III Salpausselkäs) and their eastern counterparts (Tuupovaara, Koitere, and Pielisjärvi), together forming laterally continuous ice‐marginal formations extending ...
Jukka‐Pekka Palmu +3 more
wiley +1 more source
Hydraulic impacts of glacier advance over a sediment bed [PDF]
, 2006 A sedimentary sequence of till overlying a gravel aquifer was instrumented with water-pressure transducers prior to a small, anticipated surge of the margin of the glacier Breiðamerkurjökull in Iceland.
Zatsepin, Sergei, Boulton, Geoffrey
core +1 more source