Geoscientific Model Development
Geoscientific Model Development
GMD
Articles | Volume 16, issue 1
Articles | Volume 16, issue 1
https://doi.org/10.5194/gmd-16-75-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-16-75-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 16, issue 1
Development and technical paper
 | Highlight paper
 | 
04 Jan 2023
Development and technical paper | Highlight paper |  | 04 Jan 2023

Improving snow albedo modeling in the E3SM land model (version 2.0) and assessing its impacts on snow and surface fluxes over the Tibetan Plateau

Dalei Hao, Gautam Bisht, Karl Rittger, Edward Bair, Cenlin He, Huilin Huang, Cheng Dang, Timbo Stillinger, Yu Gu, Hailong Wang, Yun Qian, and L. Ruby Leung

Supplement

https://doi.org/10.5194/gmd-16-75-2023-supplement

Data sets

daleihao/Snow_Albedo\_Parameterization\_in\_ELM D. Hao https://doi.org/10.5281/zenodo.6321317

Model code and software

ELM code with improved snow albedo modeling J. Edwards, J. Foucar, M. Petersen, M. Hoffman, D. Jacobsen, M. Duda, A. Mametjanov, R. Jacob, J. Wolfe, M. Taylor, mvertens, B. Sacks, singhbalwinder, X. Asay-Davis, A. K. Turner, onguba, W. Hannah, jayeshkrishna, L. Van Roekel, fischer-ncar, noel, K. Paul, T. Ringler, L. Bertagna, M. Turner, B. R. Hillman, M. Deakin, ldfowler58, E. Hartnett and P. J. Wolfram https://doi.org/10.5281/zenodo.6324131

DOE. Energy Exascale Earth System Model v2.0 E3SM Project https://doi.org/10.11578/E3SM/dc.20210927.1

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Executive editor
Surface albedo is critical to understanding the Earth's energy balance. It emerges that snow grain shape and internal mixing of impurities are both important to getting this right, but until now these have not been incorporated into Earth System Models. This paper appears to be the first time that these effects have been included in an Earth System Model.
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Short summary
Snow with the highest albedo of land surface plays a vital role in Earth’s surface energy budget and water cycle. This study accounts for the impacts of snow grain shape and mixing state of light-absorbing particles with snow on snow albedo in the E3SM land model. The findings advance our understanding of the role of snow grain shape and mixing state of LAP–snow in land surface processes and offer guidance for improving snow simulations and radiative forcing estimates in Earth system models.
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