The Cryosphere
The Cryosphere
TC
Articles | Volume 18, issue 4
Articles | Volume 18, issue 4
https://doi.org/10.5194/tc-18-1925-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-18-1925-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 18, issue 4
Research article
 | 
26 Apr 2024
Research article |  | 26 Apr 2024

A cold laboratory hyperspectral imaging system to map grain size and ice layer distributions in firn cores

Ian E. McDowell, Kaitlin M. Keegan, S. McKenzie Skiles, Christopher P. Donahue, Erich C. Osterberg, Robert L. Hawley, and Hans-Peter Marshall

Data sets

Effective grain size and ice layer data from the top 10 meters of the 2016 - 2017 Greenland Traverse for Accumulation and Climate Studies (GreenTrACS) firn cores, western Greenland Ice Sheet Ian McDowell https://doi.org/10.18739/A2J38KK2T

Grain size and ice layer stratigraphy from the upper 10 meters of Cores 1-7 collected during the 2016 Greenland Traverse for Accumulation and Climate Studies (GreenTrACS), western Greenland Ian McDowell et al. https://doi.org/10.18739/A24B2X61Z

In-situ snow accumulation, melt, and firn density records using ground penetrating radar and firn cores, western Greenland, 1955–2017 G. Lewis https://doi.org/10.18739/A25M62781

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Short summary
Accurate knowledge of firn grain size is crucial for many ice sheet research applications. Unfortunately, collecting detailed measurements of firn grain size is difficult. We demonstrate that scanning firn cores with a near-infrared imager can quickly produce high-resolution maps of both grain size and ice layer distributions. We map grain size and ice layer stratigraphy in 14 firn cores from Greenland and document changes to grain size and ice layer content from the extreme melt summer of 2012.
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