Non-stationary extreme value analysis of ground snow loads in the French Alps: a comparison with building standards

Le Roux, Erwan; Evin, Guillaume; Eckert, Nicolas; Blanchet, Juliette; Morin, Samuel

doi:https://doi.org/10.5194/nhess-20-2961-2020

Articles | Volume 20, issue 11

Nat. Hazards Earth Syst. Sci., 20, 2961–2977, 2020

https://doi.org/10.5194/nhess-20-2961-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Advances in extreme value analysis and application to natural...

Nat. Hazards Earth Syst. Sci., 20, 2961–2977, 2020

https://doi.org/10.5194/nhess-20-2961-2020

© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 20, issue 11

Research article

06 Nov 2020

Research article | 06 Nov 2020

Non-stationary extreme value analysis of ground snow loads in the French Alps: a comparison with building standards

Erwan Le Roux et al.

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Final revised paper (published on 06 Nov 2020)
Preprint (discussion started on 27 Mar 2020)

Interactive discussion

Status: closed

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

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- Supplement

RC1: 'Extreme value analysis of ground snow loads in the French Alps', Anonymous Referee #1, 25 Apr 2020
- AC1: 'Response to Interactive comment by Anonymous Referee #1', Erwan Le Roux, 25 May 2020
RC2: 'Non-stationary extreme value analysis of ground snow loads in the French Alps', Anonymous Referee #2, 25 May 2020
- AC2: 'Response to Interactive comment by Anonymous Referee #2', Erwan Le Roux, 12 Jun 2020

Peer-review completion

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

ED: Publish subject to minor revisions (review by editor) (23 Jun 2020) by Ivan Haigh

ED: Reconsider after major revisions (further review by editor and referees) (10 Jul 2020) by Ivan Haigh

AR by Erwan Le Roux on behalf of the Authors (30 Jul 2020) Author's response Manuscript

ED: Referee Nomination & Report Request started (10 Aug 2020) by Ivan Haigh

RR by Anonymous Referee #2 (11 Aug 2020)

RR by Anonymous Referee #1 (07 Sep 2020)

ED: Publish subject to minor revisions (review by editor) (08 Sep 2020) by Ivan Haigh

AR by Erwan Le Roux on behalf of the Authors (09 Sep 2020) Author's response Manuscript

ED: Publish as is (25 Sep 2020) by Ivan Haigh

Short summary

To minimize the risk of structure collapse due to extreme snow loads, structure standards rely on 50-year return levels of ground snow load (GSL), i.e. levels exceeded once every 50 years on average, that do not account for climate change. We study GSL data in the French Alps massifs from 1959 and 2019 and find that these 50-year return levels are decreasing with time between 900 and 4800 m of altitude, but they still exceed return levels of structure standards for half of the massifs at 1800 m.