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Antarctic Firn Characterization via Wideband Microwave Radiometry
Remote Sensing, 2022 Recent studies have demonstrated that wideband microwave radiometers provide significant potential for profiling important subsurface polar firn characteristics necessary to understand the dynamics of the cryosphere and predict future changes in ice and ...
Rahul Kar +4 more
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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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Review of Fourteau et al.: Historical porosity data in polar firn
, 2020 Christo Buizert
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Bidirectional permeability measurements of polar firn [PDF]
Annals of Glaciology, 2002 AbstractIce cores provide a valuable archive of climate history. for a complete understanding of this archive, it is important to understand air–snow exchange processes through the snow and firn in order to fully decode the ice-core record. Transport processes through the snow and firn are dependent upon their physical properties.
Gina L. Luciano, Mary R. Albert
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Review of "Gas enclosure in polar firn follows universal law"
, 2017 Christo Buizert
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Impact of physical properties and accumulation rate on pore close-off in layered firn [PDF]
The Cryosphere, 2014 Investigations into the physical characteristics of deep firn near the lock-in zone through pore close-off are needed to improve understanding of ice core records of past atmospheric composition. Specifically, the permeability and microstructure profiles
S. A. Gregory, M. R. Albert, I. Baker
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Crystal growth rates in polar firn [PDF]
Annals of Glaciology, 1993 Continuous crystal-size measurements made on the G6 Antarctic ice core (100m deep) show enhanced growth rates above a depth of 30 m (Zone 1) and in the interval between 70 and 80 m (Zone 2). Crystal growth in Zone 1 most probably takes place by a process of sublimation and condensation.
Hitoshi Shoji +3 more
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Polar Firn Densification and Grain Growth [PDF]
Annals of Glaciology, 1982 A 50 m firn core from Dome C, East Antarctica, was found to consist of coarse firn, which comprised 90 to 95% of the core, and fine firn. Coarse firn was characterized by large crystals with a vertical shape orientation near the surface, connected to nearest neighbors by relatively large necks in a structure different from closest packing.
Richard B. Alley +2 more
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Atmosphere, 2020 Understanding how physical characteristics of polar firn vary with depth assists in interpreting paleoclimate records and predicting meltwater infiltration and storage in the firn column.
Ian E. McDowell +3 more
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Porosity dependence of elastic moduli of snow and firn
Journal of Glaciology, 2021 Measurements of elastic wave velocities enable non-destructive estimation of the mechanical properties, elastic moduli and density of snow and firn.
Colin M. Sayers
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