Articles | Volume 12, issue 6
https://doi.org/10.5194/tc-12-2147-2018
https://doi.org/10.5194/tc-12-2147-2018
Research article
 | 
27 Jun 2018
Research article |  | 27 Jun 2018

Observations and modelling of algal growth on a snowpack in north-western Greenland

Yukihiko Onuma, Nozomu Takeuchi, Sota Tanaka, Naoko Nagatsuka, Masashi Niwano, and Teruo Aoki

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Cited articles

Aoki, T., Kuchiki, K., Niwano, M., Kodama, Y., Hosaka, M., and Tanaka, T.: Physically based snow albedo model for calculating broadband albedos and the solar heating profile in snowpack for general circulation models, J. Geophys. Res., 116, D11114, https://doi.org/10.1029/2010JD015507, 2011. 
Aoki, T., Kuchiki, K., Niwano, M., Matoba, S., Uetake, J., Masuda K., and Ishimoto, H.: Numerical Simulation of Spectral Albedos of Glacier Surfaces Covered with Glacial Microbes in Northwestern Greenland, in: Radiation processes in the atmosphere and ocean (IRS2012), edited by: Cahalan, R. and Fischer, J., ALP Conf. Proc., 1531, 176, https://doi.org/10.1063/1.4804735, 2013. 
Aoki, T., Matoba, S., Uetake, J., Takeuchi, N., and Motoyama, H.: Field activities of the “Snow Impurity and Glacial Microbe effects on abrupt warming in the Arctic” (SIGMA) project in Greenland in 2011–2013, B. Glaciol. Res., 32, 3–20, https://doi.org/10.5331/bgr.32.3, 2014. 
Armstrong, R. L. and Brun, E. (Eds.): Snow and Climate: Physical Processes, Surface Energy Exchange and Modeling, Cambridge Univ. Press, Cambridge, UK, 2008. 
Box, J. E., Fettweis, X., Stroeve, J. C., Tedesco, M., Hall, D. K., and Steffen, K.: Greenland ice sheet albedo feedback: thermodynamics and atmospheric drivers, The Cryosphere, 6, 821–839, https://doi.org/10.5194/tc-6-821-2012, 2012. 
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Short summary
Snow algal bloom can substantially increase melt rates of the snow due to the effect of albedo reduction on the snow surface. In this study, the temporal changes in algal abundance on the snowpacks of Greenland Glacier were studied in order to reproduce snow algal growth using a numerical model. Our study demonstrates that a simple numerical model could simulate the temporal variation in snow algal abundance on the glacier throughout the summer season.