Articles | Volume 21, issue 12
https://doi.org/10.5194/hess-21-6461-2017
https://doi.org/10.5194/hess-21-6461-2017
Research article
 | 
18 Dec 2017
Research article |  | 18 Dec 2017

Does nonstationarity in rainfall require nonstationary intensity–duration–frequency curves?

Poulomi Ganguli and Paulin Coulibaly

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by Editor and Referees) (17 Aug 2017) by Thomas Kjeldsen
AR by Poulomi Ganguli on behalf of the Authors (09 Sep 2017)  Author's response    Manuscript
ED: Reconsider after major revisions (further review by Editor and Referees) (14 Sep 2017) by Thomas Kjeldsen
AR by Poulomi Ganguli on behalf of the Authors (15 Sep 2017)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (15 Sep 2017) by Thomas Kjeldsen
RR by Anonymous Referee #2 (03 Oct 2017)
RR by Anonymous Referee #1 (08 Oct 2017)
ED: Publish subject to minor revisions (review by editor) (23 Oct 2017) by Thomas Kjeldsen
AR by Poulomi Ganguli on behalf of the Authors (31 Oct 2017)  Author's response    Manuscript
ED: Publish as is (10 Nov 2017) by Thomas Kjeldsen
AR by Poulomi Ganguli on behalf of the Authors (11 Nov 2017)  Author's response    Manuscript
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Short summary
Using statistical models, we test whether nonstationary versus stationary models show any significant differences in terms of design storm intensity at different durations across Southern Ontario. We find that detectable nonstationarity in rainfall extremes does not necessarily lead to significant differences in design storm intensity, especially for shorter return periods. An update of 2–44 % is required in current design standards to mitigate the risk of storm-induced urban flooding.