Articles | Volume 27, issue 16
https://doi.org/10.5194/hess-27-3083-2023
https://doi.org/10.5194/hess-27-3083-2023
Research article
 | 
24 Aug 2023
Research article |  | 24 Aug 2023

Stable water isotopes and tritium tracers tell the same tale: no evidence for underestimation of catchment transit times inferred by stable isotopes in StorAge Selection (SAS)-function models

Siyuan Wang, Markus Hrachowitz, Gerrit Schoups, and Christine Stumpp

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Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision | EF: Editorial file upload
ED: Reconsider after major revisions (further review by editor and referees) (12 Apr 2023) by Roberto Greco
AR by Siyuan Wang on behalf of the Authors (30 May 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Referee Nomination & Report Request started (05 Jun 2023) by Roberto Greco
RR by Anonymous Referee #1 (07 Jun 2023)
RR by Stefanie Lutz (26 Jun 2023)
ED: Publish subject to minor revisions (review by editor) (30 Jun 2023) by Roberto Greco
AR by Siyuan Wang on behalf of the Authors (06 Jul 2023)  Author's response   Author's tracked changes   Manuscript 
ED: Publish as is (14 Jul 2023) by Roberto Greco
AR by Siyuan Wang on behalf of the Authors (19 Jul 2023)  Author's response   Manuscript 
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Short summary
This study shows that previously reported underestimations of water ages are most likely not due to the use of seasonally variable tracers. Rather, these underestimations can be largely attributed to the choices of model approaches which rely on assumptions not frequently met in catchment hydrology. We therefore strongly advocate avoiding the use of this model type in combination with seasonally variable tracers and instead adopting StorAge Selection (SAS)-based or comparable model formulations.