Articles | Volume 26, issue 19
Research article
11 Oct 2022
Research article |  | 11 Oct 2022

Transit Time index (TTi) as an adaptation of the humification index to illustrate transit time differences in karst hydrosystems: application to the karst springs of the Fontaine de Vaucluse system (southeastern France)

Leïla Serène, Christelle Batiot-Guilhe, Naomi Mazzilli, Christophe Emblanch, Milanka Babic, Julien Dupont, Roland Simler, Matthieu Blanc, and Gérard Massonnat


Interactive discussion

Status: closed

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on hess-2022-100', Weiquan Dong, 22 Apr 2022
    • AC1: 'Reply on RC1', Leïla Serène, 23 May 2022
      • RC3: 'Reply on AC1', Weiquan Dong, 23 May 2022
        • AC5: 'Reply on RC3', Leïla Serène, 28 May 2022
  • RC2: 'Comment on hess-2022-100', Anonymous Referee #2, 28 Apr 2022
    • AC2: 'Reply on RC2', Leïla Serène, 23 May 2022
  • CC1: 'Comment on hess-2022-100', Neil Terry, 30 Apr 2022
    • AC3: 'Reply on CC1', Leïla Serène, 23 May 2022
  • AC4: 'Comment on hess-2022-100', Leïla Serène, 26 May 2022
    • RC4: 'Reply on AC4', Weiquan Dong, 26 May 2022
      • AC6: 'Reply on RC4', Leïla Serène, 28 May 2022

Peer review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (further review by editor) (31 May 2022) by Zhongbo Yu
AR by Leïla Serène on behalf of the Authors (06 Jun 2022)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (19 Jun 2022) by Zhongbo Yu
Short summary
This work aims to develop the Transit Time index (TTi) as a natural tracer of karst groundwater transit time, usable in the 0–6-month range. Based on the fluorescence of organic matter, TTi shows its relevance to detect a small proportion of fast infiltration water within a mix, while other natural transit time tracers provide no or less sensitive information. Comparison of the average TTi of different karst springs also provides consistent results with the expected relative transit times.