Articles | Volume 15, issue 12
https://doi.org/10.5194/tc-15-5513-2021
https://doi.org/10.5194/tc-15-5513-2021
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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Cited articles

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Agisoft LLC: Agisoft Metashape, available at: https://www.agisoft.com/, last access: 27 July 2020. a
Bhardwaj, A., Sam, L., Akanksha, Martín-Torres, F. J., and Kumar, R.: UAVs as remote sensing platform in glaciology: Present applications and future prospects, Remote Sen. Environ., 175, 196–204, https://doi.org/10.1016/j.rse.2015.12.029, 2016. a, b
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Brock, B. W., Willis, I. C., Sharp, M. J., and Arnold, N. S.: Modelling seasonal and spatial variations in the surface energy balance of Haut Glacier d'Arolla, Switzerland, Ann. Glaciol., 31, 53–62, https://doi.org/10.3189/172756400781820183, 2000. a
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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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