Articles | Volume 15, issue 1
Research article
13 Jan 2021
Research article |  | 13 Jan 2021

Spectral characterization, radiative forcing and pigment content of coastal Antarctic snow algae: approaches to spectrally discriminate red and green communities and their impact on snowmelt

Alia L. Khan, Heidi M. Dierssen, Ted A. Scambos, Juan Höfer, and Raul R. Cordero

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Cited articles

Amesbury, M. J., Roland, T. P., Royles, J., Hodgson, D. A., Convey, P., Griffiths, H. and Charman, D. J.: Widespread Biological Response to Rapid Warming on the Antarctic Peninsula, Curr. Biol., 21, 1–7,, 2017. 
Benning, L. G., Anesio, A. M., Lutz, S., and Tranter, M.: Biological impact on Greenland's albedo, Nat. Geosci., 7, 691–691,, 2014. 
Bidigare, R. R., Ondrusek, M. E., Kennicutt II, M. C., Iturriaga, R., Harvey, H. R., Hoham, R. W., and Macko, S. A.: Evidence a photoprotective for secondary carotenoids of snow algae, J. Phycol., 29, 427–434,, 1993. 
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Bryant, A. C., Painter, T. H., Deems, J. S., and Bender, S. M.: Impact of dust radiative forcing in snow on accuracy of operational runoff prediction in the Upper Colorado River Basin, Geophys. Res. Lett., 40, 3945–3949,, 2013. 

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Short summary
We present radiative forcing (RF) estimates by snow algae in the Antarctic Peninsula (AP) region from multi-year measurements of solar radiation and ground-based hyperspectral characterization of red and green snow algae collected during a brief field expedition in austral summer 2018. Mean daily RF was double for green (~26 W m−2) vs. red (~13 W m−2) snow algae during the peak growing season, which is on par with midlatitude dust attributions capable of advancing snowmelt.