Articles | Volume 13, issue 7
https://doi.org/10.5194/tc-13-1843-2019
https://doi.org/10.5194/tc-13-1843-2019
Research article
 | 
09 Jul 2019
Research article |  | 09 Jul 2019

Thermal conductivity of firn at Lomonosovfonna, Svalbard, derived from subsurface temperature measurements

Sergey Marchenko, Gong Cheng, Per Lötstedt, Veijo Pohjola, Rickard Pettersson, Ward van Pelt, and Carleen Reijmer

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Latest update: 25 Feb 2024
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Short summary
Thermal conductivity (k) of firn at Lomonosovfonna, Svalbard, is estimated using measured temperature evolution and density. The optimized k values (0.2–1.6 W (m K)−1) increase downwards and over time and are most sensitive to systematic errors in measured temperature values and their depths, particularly in the lower part of the profile. Compared to the density-based parameterizations, derived k values are consistently larger, suggesting a faster conductive heat exchange in firn.