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The Cryosphere An interactive open-access journal of the European Geosciences Union
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The reflectivity of sunlight, which is also known as albedo, is often inadequately modeled in regional climate models. Therefore, we have implemented a new snow and ice albedo scheme in the regional climate model RACMO2. In this study, we evaluate a new RACMO2 version for the Greenland ice sheet by using observations and the previous model version. RACMO2 output compares well with observations, and by including new processes we improve the ability of RACMO2 to make future climate projections.
TC | Articles | Volume 14, issue 11
The Cryosphere, 14, 3645–3662, 2020
https://doi.org/10.5194/tc-14-3645-2020
The Cryosphere, 14, 3645–3662, 2020
https://doi.org/10.5194/tc-14-3645-2020

Research article 04 Nov 2020

Research article | 04 Nov 2020

Evaluation of a new snow albedo scheme for the Greenland ice sheet in the Regional Atmospheric Climate Model (RACMO2)

Christiaan T. van Dalum et al.

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Cited articles

Bader, H.: Density of ice as a function of temperature and stress, https://hdl.handle.net/11681/11579 (last access: 28 October 2020), 1964. a
Bennartz, R., Shupe, M. D., Turner, D. D., Walden, V. P., Steffen, K., Cox, C. J., Kulie, M. S., Miller, N. B., and Pettersen, C.: July 2012 Greenland melt extent enhanced by low-level liquid clouds, Nature, 496, 83–86, https://doi.org/10.1038/nature12002, 2013. a
Bøggild, C. E., Brandt, R. E., Brown, K. J., and Warren, S. G.: The ablation zone in northeast Greenland: ice types, albedos and impurities, J. Glaciol., 56, 101–113, https://doi.org/10.3189/002214310791190776, 2010. a
Bohren, C. F.: Colors of snow, frozen waterfalls, and icebergs, J. Opt. Soc. Am., 73, 1646–1652, https://doi.org/10.1364/JOSA.73.001646, 1983. a
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. a
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Short summary
The reflectivity of sunlight, which is also known as albedo, is often inadequately modeled in regional climate models. Therefore, we have implemented a new snow and ice albedo scheme in the regional climate model RACMO2. In this study, we evaluate a new RACMO2 version for the Greenland ice sheet by using observations and the previous model version. RACMO2 output compares well with observations, and by including new processes we improve the ability of RACMO2 to make future climate projections.
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