Results 41 to 50 of about 27,505 (199)
Snow accumulation, surface height change, and firn densification at Summit, Greenland: Insights from 2 years of in situ observation [PDF]
, 2004 Weekly measurements of surface height change were made at an accumulation forest of 100 stakes at Summit, Greenland, over a 2-year period (17 August 2000 to 8 August 2002).
Dibb, Jack E., Fahnestock, Mark
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Modelling of the densification of polar firn: characterization of the snow–firn transition [PDF]
Annals of Glaciology, 1998 The transformation of dry snow to firn is described by the transition between densification by deformationless restacking and densification by power-law creep. The observed decrease with temperature of the density at the snow-firn transition seems to result from the competition between grain-boundary sliding and power-law creep. These two densification
Arnaud, Laurent +4 more
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Российский офтальмологический журналThis article presents a literature review on visual impairments in COVID-19 and post-COVID syndrome and their possible pathogenesis. The data on possible cellular targets of SARS-CoV-2 in various damaged eye structures are discussed.
E. M. Mironova, O. P. Balezina
doaj +1 more source
The Ice Core Gas Age‐Ice Age Difference as a Proxy for Surface Temperature
Geophysical Research Letters, 2021 Ice cores provide detailed records of past climate change. Water stable isotopes are the most commonly used ice core climate proxy, but their quantitative interpretation remains challenging.
Christo Buizert
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Glacier Change, Concentration, and Elevation Effects in the Karakoram Himalaya, Upper Indus Basin [PDF]
, 2011 In recent decades the consequences of climate change for Himalayan glaciers has become of great concern. Glaciers in much of High Asia appear to be declining, some at globally extreme rates (Ageta 2001;Oerlemanns 2001).
Hewitt, Kenneth
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QuaternaryAntarctica, largely free from geopolitical borders, serves as a critical site for scientific research, environmental monitoring and climate studies. The continent’s ice cap holds over 60% of the Earth’s freshwater and provides a stable climatological ...
Vuk Uskoković
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An extensive permanent snowfield and the possible occurrence of permafrost in till in the Ridnitšohkka area, Finnish Lapland [PDF]
Bulletin of the Geological Society of Finland, 2000 An area of permanent snow and frozen ground was studied at the end of summer seasons during the years 1990–1993 near the summit of Ridnitvsohkka fell, which at 1317 m a.s.l. is the second highest peak in Finland.
H. Hirvas, P. Lintinen, P. Kosloff
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Shouldn’t snowpacks be sources of monocarboxylic acids? [PDF]
, 2002 We report the first measurements of the mixing ratios of acetic (CH3COOH) and formic (HCOOH) acids in the air filling the pore spaces of the snowpacks (firn air) at Summit, Greenland and South Pole.
Arsenault, Matthew, Dibb, Jack E.
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Increasing surface runoff from Greenland’s firn areas
Nature Climate Change, 2022 <p>Most of the Greenland ice sheet (&#8764;78% to 92%) is underlain by porous snow and firn, into which meltwater can percolate and refreeze, or run off. However, the fate of meltwater in firn areas is poorly constrained. We identified the ice sheet&#8217;s annual visible runoff limits by mapping surface hydrological ...
Andrew Tedstone, Horst Machguth
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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
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