Hamdi et al. (2026) A long-term dataset on hydrology and suspended sediments in the Kamech catchment from the OMERE Observatory

Identification

• Journal: Earth system science data
• Year: 2026
• Date: 2026-07-14
• Authors: Radhouane Hamdi, Damien Raclot, Insaf Mekki, Jean Albergel
• DOI: 10.5194/essd-18-4871-2026

Research Groups

• LISAH, Univ Montpellier, AgroParisTech, INRAE, Institut Agro, IRD, Montpellier, France
• INRGREF, National Research Institute for Rural Engineering, Water and Forestry, Carthage University, Tunis, Tunisia
• FSB, Faculty of Sciences, Bizerte, Carthage University, Tunis, Tunisia

Short Summary

This paper presents a long-term dataset on hydrology and suspended sediments in the Kamech catchment from the OMERE Observatory. The dataset covers almost 30 years and includes precipitation, evaporation, water discharge, and suspended sediment concentration measurements.

Objective

• Investigate the dynamics of water and sediment fluxes in the Mediterranean region.
• Understand the impact of climate change on hydrological response and anticipate future conditions.

Study Configuration

• Spatial Scale: The study focuses on a 2.63 km^2 catchment area in Cape Bon, Tunisia.
• Temporal Scale: The dataset covers almost 30 years (1994-2023).

Methodology and Data

• Models used: None mentioned.
• Data sources: Satellite, observation, reanalysis data from various sensors and instruments.

Main Results

• The dataset shows a strong correlation between runoff depth at the four nested stations.
• Interannual variability of rainfall regime ranges from 395 mm yr^-1 to 1036 mm yr^-1.
• Annual runoff rates range from 2.2 to 275.5 mm, with a standard deviation of 84.5 mm around a mean close to 108 mm yr^-1 at the LAKE Station.

Contributions

• The dataset provides valuable information for comparative studies, model calibration, and designing management strategies.
• It highlights the importance of understanding the hydro-sedimentary regime in Mediterranean catchments.

Funding

• This research was funded by various projects and programs, including:
  • OMERE Observatory
  • French network of critical zone observatories OZCAR
  • European eLTER (European Long-Term Ecosystem, critical zone and socio-ecological Research) network

Citation

@article{Hamdi2026longterm,
  author = {Hamdi, Radhouane and Raclot, Damien and Mekki, Insaf and Gasmi, Mohamed and Albergel, Jean},
  title = {A long-term dataset on hydrology and suspended sediments in the Kamech catchment from the OMERE Observatory},
  journal = {Earth system science data},
  year = {2026},
  doi = {10.5194/essd-18-4871-2026},
  url = {https://doi.org/10.5194/essd-18-4871-2026}
}