The Cryosphere
The Cryosphere
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Articles | Volume 15, issue 12
Articles | Volume 15, issue 12
https://doi.org/10.5194/tc-15-5513-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/tc-15-5513-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 12
Research article
 | 
09 Dec 2021
Research article |  | 09 Dec 2021

Aerodynamic roughness length of crevassed tidewater glaciers from UAV mapping

Armin Dachauer, Richard Hann, and Andrew J. Hodson

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Latest update: 03 Jul 2025
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Short summary
This study investigated the aerodynamic roughness length (z0) – an important parameter to determine the surface roughness – of crevassed tidewater glaciers on Svalbard using drone data. The results point out that the range of z0 values across a crevassed glacier is large but in general significantly higher compared to non-crevassed glacier surfaces. The UAV approach proved to be an ideal tool to provide distributed z0 estimates of crevassed glaciers which can be used to model turbulent fluxes.
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