13 Apr 2023
 | 13 Apr 2023
Status: this preprint is currently under review for the journal ESSD.

A high-frequency, long-term data set of hydrology and sediment yield: The alpine badland catchments of Draix-Bléone Observatory

Sebastien Klotz, Caroline Le Bouteiller, Nicolle Mathys, Firmin Fontaine, Xavier Ravanat, Jean-Emmanuel Olivier, Frédéric Liébault, Hugo Jantzi, Patrick Coulmeau, Didier Richard, Jean-Pierre Cambon, and Maurice Meunier

Abstract. Draix-Bléone critical zone observatory was created in 1983 to study erosion processes in a mountainous badland region of the French Southern Alps. Six catchments of varying size (0.001 to 22 km2) and vegetation cover are equipped to measure water and sediment fluxes, both as bedload and suspended load. This paper presents the core dataset of the observatory, including rainfall and meteorology, high-frequency discharge and suspended sediment concentration and event-scale bedload volumes. The longest records span almost 40 years. Measurement and data processing methods are presented, as well as data quality assessment procedures and examples of results. All the data presented in this paper is available on the open repository (Draix-Bleone Observatory, 2015) and a 5-year snapshot is available for review at (Klotz et al, 2023).

Sebastien Klotz et al.

Status: open (until 08 Jun 2023)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • RC1: 'Comment on essd-2023-34', Anonymous Referee #1, 09 May 2023 reply
  • RC2: 'Review comments on essd-2023-34', Jens Turowski, 17 May 2023 reply
  • RC3: 'Comment on essd-2023-34', Anonymous Referee #3, 26 May 2023 reply

Sebastien Klotz et al.

Data sets

2015-2019 subset of rainfall, meteorology, discharge and sediment yield data from Draix-Bleone Observatory Sebastien Klotz, Caroline Le Bouteiller, Firmin Fontaine, Xavier Ravanat, and Nicolle Mathys

Observatoire hydrosedimentaire de montagne Draix-Bleone Draix-Bleone Observatory

Sebastien Klotz et al.


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Short summary
Mountain badlands are places of intense erosion. They deliver large amounts of sediment to river systems, with consequences on hydropower sustainability, habitat quality and biodiversity, flood hazard and river management. Draix-Bleone Observatory was created in 1983 to understand and quantify sediment delivery from such badland areas. Our paper describes how water and sediment fluxes have been monitored for almost 40 years in the small mountain catchments of this observatory.