Articles | Volume 9, issue 3
The Cryosphere, 9, 1089–1103, 2015
The Cryosphere, 9, 1089–1103, 2015

Research article 22 May 2015

Research article | 22 May 2015

Constraints on the δ2H diffusion rate in firn from field measurements at Summit, Greenland

L. G. van der Wel et al.


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AR by Harro A.J. Meijer on behalf of the Authors (23 Apr 2015)  Author's response    Manuscript
ED: Publish as is (24 Apr 2015) by Jean-Louis Tison
Short summary
We performed 2H isotope diffusion measurements in the upper 3 metres of firn at Summit, Greenland, by following over a 4-year period isotope-enriched snow that we deposited. We found that the diffusion process was much less rapid than in the most commonly used model. We discuss several aspects of the diffusion process that are still poorly constrained and might lead to this discrepancy. Quantitative knowledge of diffusion is necessary for use of the diffusion process itself as a climate proxy.