Flow dynamics of an accumulation basin: a case study of upper Kahiltna Glacier, Mount McKinley, Alaska [PDF]
, 2012 We interpreted flow dynamics of the Kahiltna Pass Basin accumulation zone on Mount McKinley, Alaska, USA, using 40, 100 and 900 MHz ground-penetrating radar profiles and GPS surface velocity measurements.
Arcone, Steven +6 more
core +2 more sources
Expansion of firn aquifers in southeast Greenland
Journal of Geophysical Research: Earth Surface, 2022 AbstractSurface melt produces more mass loss than any other process on the Greenland Ice Sheet. In some regions of Greenland with high summer surface melt and high winter snow accumulation, the warm porous firn of the percolation zone can retain liquid meltwater through the winter.
Annika N. Horlings +2 more
openaire +1 more source
iScienceSummary: Accurate firn density estimation is essential for assessing glacier mass balance. However, the accuracy of existing firn densification models (FDMs) is limited by an incomplete understanding of firn compaction dynamics, particularly as firn ...
Xueyu Zhang +3 more
doaj +1 more source
A 200-year 210Pb record from Greenland [PDF]
, 1997 A continuous profile of 210Pb activity extending back to 1766 has been developed for a firn/ice core collected at Site D in central Greenland in 1984. Unexpectedly high activities of 210Pb were found at the base of this core (0.032 pCi kg−1 in samples ...
Clausen +22 more
core +2 more sources
Hydroxyl concentration estimates in the sunlit snowpack at Summit, Greenland [PDF]
, 2007 Experiments were performed at Summit, Greenland (72°34′ N, 38°29′ W) to investigate hydroxyl mixing ratios in the sunlit surface snowpack (or firn). We added a carefully selected mixture of hydrocarbon gases (with a wide range of hydroxyl reactivities ...
Beyersdorf, AJ +9 more
core
Air-snow exchange investigations at Summit, Greenland: An overview [PDF]
, 1997 The Greenland Ice Sheet Project 2 (GISP2) and Greenland Ice Core Project (GRIP) deep drilling programs at Summit, Greenland included support (both logistical and scientific) of extensive investigation of atmospheric transport and air-snow exchange ...
Dibb, Jack E., Jaffrezo, J L
core +2 more sources
Snow accumulation, firn temperature and solar radiation in the area of the Colle Gnifetti core drilling site (Monte Rosa, Swiss Alps): Distribution patterns and interrelationships [PDF]
, 1983 Distributional patterns of glaciological parameters at the Colle Gnifetti core drilling site are described and their interrelationships are brietly discussed.
Alean, Jürg +2 more
core
Development of physically based liquid water schemes for Greenland firn-densification models [PDF]
The Cryosphere, 2019 As surface melt is increasing on the Greenland Ice Sheet (GrIS), quantifying the retention capacity of the firn layer is critical to linking meltwater production to meltwater runoff. Firn-densification models have so far relied on empirical approaches to
V. Verjans +5 more
doaj +1 more source
Recent Results from the RICE Experiment at the South Pole
, 2003 We present a compilation of recent results, submitted to the 2003 International Cosmic Ray Conference (Tsukuba, Japan). These include: a) Revised Monte Carlo estimates of the radiofrequency signals produced by electromagnetic showers in ice, b) an ...
Askaryan +8 more
core +1 more source
Bromide and other ions in the snow, firn air, and atmospheric boundary layer at Summit during GSHOX [PDF]
, 2010 Measurements of gas phase soluble bromide in the boundary layer and in firn air, and Br− in aerosol and snow, were made at Summit, Greenland (72.5° N, 38.4° W, 3200 m a.s.l.) as part of a larger investigation into the influence of Br chemistry on HOx ...
Beckman, P +3 more
core +1 more source