Articles | Volume 14, issue 6
https://doi.org/10.5194/tc-14-2087-2020
https://doi.org/10.5194/tc-14-2087-2020
Research article
 | 
29 Jun 2020
Research article |  | 29 Jun 2020

Physically based model of the contribution of red snow algal cells to temporal changes in albedo in northwest Greenland

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

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Cited articles

Andreae, M. O. and Gelencsér, A.: Black carbon or brown carbon? The nature of light-absorbing carbonaceous aerosols, Atmos. Chem. Phys., 6, 3131–3148, https://doi.org/10.5194/acp-6-3131-2006, 2006. 
Aoki, Te., Aoki, Ta., Fukabori, M., Hachikubo, A., Tachibana, Y., and Nishio, F.: Effects of snow physical parameters on spectral albedo and bidirectional reflectance of snow surface, J. Geophys. Res., 105, 10219–10236, https://doi.org/10.1029/1999JD901122, 2000. 
Aoki, T., Hori, M., Motoyoshi, H., Tanikawa, T., Hachikubo, A., Sugiura, K., Yasunari, T. J., Storvold, R., Eide, H. A., Stamnes, K., Li, W., Nieke, J., Nakajima, Y., and Takahashi, F.: ADEOS-II/GLI snow/ice products – Part II: Validation results using GLI and MODIS data, Remote Sens. Environ., 111, 274–290, https://doi.org/10.1016/j.rse.2007b.02.035, 2007. 
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, Radiation Processes In The Atmosphere And Ocean (IRS2012), edited by: Cahalan, R. and Fischer, ALP Conf. Proc., 1531, 176, https://doi.org/10.1063/1.4804735, 2013. 
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Short summary
Surface snow albedo is substantially reduced by organic impurities, such as microbes that live in the snow. We present the temporal changes of surface albedo, snow grain size, and inorganic and organic impurities observed on a snowpack in northwest Greenland during summer and our attempt to reproduce the changes in albedo with a physically based snow albedo model coupled with a snow algae model. To our knowledge, this is the first report proposing such a coupled albedo model in Greenland.