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

• Published in: The cryosphere Vol. 18; no. 4; pp. 1925 - 1946
• Main Authors: McDowell, Ian E, Keegan, Kaitlin M, Skiles, S. McKenzie, Donahue, Christopher P, Osterberg, Erich C, Hawley, Robert L, Marshall, Hans-Peter
• Format: Journal Article
• Language: English
• Published: Katlenburg-Lindau Copernicus GmbH 26.04.2024; Copernicus Publications
• Subjects: Age differences; Antarctic ice sheet; Core analysis; Cores; Datasets; Electromagnetic absorption; Equipment and supplies; Estimates; Firn; Firn density; Glacial epoch; Glaciation; Grain size; Hydrology; Hyperspectral imaging; Ice ages; Ice cores; Ice cover; Ice sheets; Image processing; Imaging systems; Infiltration; Laboratories; Light absorption; Mass balance; Mass balance of ice sheets; Measurement techniques; Meltwater; Near infrared radiation; Paleoclimate; Particle size; Percolation; Permeability; Reflectance; Remote sensing; Sea level; Stratigraphy; Greenland

The Greenland and Antarctic ice sheets are covered in a layer of porous firn. Knowledge of firn structure improves our understanding of ice sheet mass balance, supra- and englacial hydrology, and ice core paleoclimate records. While macroscale firn properties, such as firn density, are relatively ea...