Articles | Volume 18, issue 12
https://doi.org/10.5194/tc-18-5913-2024
https://doi.org/10.5194/tc-18-5913-2024
Brief communication
 | 
17 Dec 2024
Brief communication |  | 17 Dec 2024

Brief communication: Accurate and autonomous snow water equivalent measurements using a cosmic ray sensor on a Himalayan glacier

Navaraj Pokhrel, Patrick Wagnon, Fanny Brun, Arbindra Khadka, Tom Matthews, Audrey Goutard, Dibas Shrestha, Baker Perry, and Marion Réveillet

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Cited articles

Adhikari, N., Gao, J., Zhao, A., Xu, T., Chen, M., Niu, X., and Yao, T.: Spring tropical cyclones modulate near-surface isotopic compositions of atmospheric water vapour in Kathmandu, Nepal, Atmos. Chem. Phys., 24, 3279–3296, https://doi.org/10.5194/acp-24-3279-2024, 2024. 
Brun, F., King, O., Réveillet, M., Amory, C., Planchot, A., Berthier, E., Dehecq, A., Bolch, T., Fourteau, K., Brondex, J., Dumont, M., Mayer, C., Leinss, S., Hugonnet, R., and Wagnon, P.: Everest South Col Glacier did not thin during the period 1984–2017, The Cryosphere, 17, 3251–3268, https://doi.org/10.5194/tc-17-3251-2023, 2023. 
Desilets, D.: Intensity correction factors for a cosmic ray neutron sensor (Version 1), Hydroinnova Technical Document 21-02, https://doi.org/10.5281/zenodo.4569062, 2021. 
Flückiger, E. O. and Bütikofer, R.: Swiss neutron monitors and cosmic ray research at Jungfraujoch, Adv. Space Res., 44, 1155–1159, https://doi.org/10.1016/j.asr.2008.10.043, 2009. 
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Short summary
We studied snow processes in the accumulation area of Mera Glacier (central Himalaya, Nepal) by deploying a cosmic ray counting sensor that allows one to track the evolution of snow water equivalent. We suspect significant surface melting, water percolation, and refreezing within the snowpack, which might be missed by traditional mass balance surveys.
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