Articles | Volume 13, issue 7
The Cryosphere, 13, 1843–1859, 2019
https://doi.org/10.5194/tc-13-1843-2019
The Cryosphere, 13, 1843–1859, 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 et al.

Data sets

Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 S. Marchenko, V. Pohjola, R. Pettersson, W. van Pelt, C. Vega, and E. Isaksson https://doi.org/10.6084/m9.figshare.8168048

Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 S. Marchenko,V. Pohjola, and R. Pettersson https://doi.org/10.6084/m9.figshare.8202098.v1

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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.