Streamflow monitoring at high temporal resolution based on non-contact instruments in the Galabre river (Southern pre-Alps, France)

We provide a dataset for calculating streamflow in a river of the Southern pre-Alps in France over the period October 2018 to May 2021. The river is called the Galabre and is a tributary of the Bès, which in turn is a tributary of the Bléone. The hydrometric station, so-called RIPLE, which incorporates non-contact instruments, was described in detail by Nord et al (2020). It was installed at a site subject to frequent bathymetric changes, 2.5 km downstream of a historic hydrometric station called « La Robine », at the "Galabre" site of the Draix-Bléone observatory (https://draixbleone.osug.fr/). The dataset combines high-frequency monitoring (every 10 minutes) of water level and surface water velocity using radar, ground-based bathymetric surveys, video sequences recorded by fixed camera with velocity fields obtained using the Fudaa-LSPIV software (https://forge.irstea.fr/projects/fudaa-lspiv), and the results of theoretical models of velocity field distribution in the river section.

Nord, G., Michielin, Y., Biron, R., Esteves, M., Freche, G., Geay, T., et al. (2020). An autonomous low-power instrument platform for monitoring water and solid discharges in mesoscale rivers. Geoscientific Instrumentation, Methods and Data Systems, 9(1), 41–67. https://doi.org/10.5194/gi-9-41-2020