Numerical experiments on vapor diffusion in polar snow and firn and its impact on isotopes using the multi-layer energy balance model Crocus in SURFEX v8.0

Touzeau, Alexandra; Landais, Amaëlle; Morin, Samuel; Arnaud, Laurent; Picard, Ghislain

doi:https://doi.org/10.5194/gmd-11-2393-2018

Articles | Volume 11, issue 6

https://doi.org/10.5194/gmd-11-2393-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/gmd-11-2393-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 11, issue 6

Model description paper

|

20 Jun 2018

Model description paper |

| 20 Jun 2018

Numerical experiments on vapor diffusion in polar snow and firn and its impact on isotopes using the multi-layer energy balance model Crocus in SURFEX v8.0

Alexandra Touzeau, Amaëlle Landais, Samuel Morin, Laurent Arnaud, and Ghislain Picard

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Final revised paper (published on 20 Jun 2018)
Supplement to the final revised paper
Preprint (discussion started on 26 Oct 2017)
Supplement to the preprint

Interactive discussion

Status: closed

AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment

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- Supplement

SC1: 'Executive Editor comment on "Numerical experiments on isotopic diffusion in polar snow and firn using a multi-layer energy balance model"', Astrid Kerkweg, 07 Nov 2017
- AC3: 'Update on the Answer to the Editor', Alexandra Touzeau, 02 Feb 2018
RC1: 'Review of Numerical experiments on isotopic diffusion in polar snow and firn using a multi-layer energy balance model by Touzeau et al.', Anonymous Referee #1, 30 Nov 2017
- AC1: 'Answer to Anonymous Referee 1', Alexandra Touzeau, 30 Jan 2018
RC2: 'A review of the manuscript "Numerical experiments on isotopic diffusion in polar snow and firn using a multi-layer energy balance model" by Alexandra Touzeau and others', Anonymous Referee #2, 01 Dec 2017
- AC2: 'Answer to reviewers (1, 2 and 3) and to the Editor', Alexandra Touzeau, 30 Jan 2018
RC3: 'Review Touzeau et al: Numerical experiments on isotopic diffusion in polar snow and firn using a multi-layer energy balance model', Anonymous Referee #3, 04 Dec 2017

Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision

AR by Alexandra Touzeau on behalf of the Authors (06 Mar 2018) Author's response Manuscript

ED: Publish as is (16 Mar 2018) by Dan Goldberg

AR by Alexandra Touzeau on behalf of the Authors (09 Apr 2018) Author's response Manuscript

Short summary

We introduced a new module of water vapor diffusion into the snowpack model Crocus. Vapor transport locally modifies the density of snow layers, possibly influencing compaction. It also affects the original isotopic signature of snow layers. We also introduced water isotopes (𝛿¹⁸O) in the model. Over 10 years, the modeled attenuation of isotopic variations due to vapor diffusion is 7–18 % lower than the observations. Thus, other processes are required to explain the total attenuation.