This manuscript describes a comprehensive benchmark dataset related to the study of flash flood events in the Mediterranean region of France. Specifically, the dataset comprises the input and output data used for the hydraulic simulations of three events, as well as a range of  data for model validation. I believe that the dataset that might be of interest of other research groups working on flash flood hazard and risk in the Mediterranean Region, and therefore I recommend its publication, after having addressed a few minor remarks: 

Page 6 L7: can you please provide a reference or a link for the BD TOPAGE hydrographic network database?

Page 7 L26-36: this paragraphs refers to parts of the dataset that are only describer later on in the manuscript. you might want to move it to Section 3.3, or to incorporate the information in Figure 1

Page 16, L322-324: other possible reasons for the observed differences between rating curves and simulations could be:

- the use of steady state simulations

- the approximation given by the inertia-only version of SWE, which might not  reproduce well water depths where there are large changes in flow section

Page 7 L45:"The rating curves are also subject to uncertainty, as they are derived from measured discharge data". You might want to refer her to the work by Di Baldassarre and Montanari (2009), who provided a quantification of the overall uncertainty of discharge estimates from rating curves

Section 4.2: Could you please elaborate on the potential influence of solid transport and related erosion/deposition processes on flood extent and water depths? Do you think that these processes could have played a role in the three case studies?

Page 19 L383 "...that roughness coefficients should be much lower than the commonly recommended values.."  perhaps did you mean higher? (Manning's coefficient increases with increasing roughness)

Page 20 L388, typo: using the Floodos 2D hydraulic model

References

Di Baldassarre, G. and Montanari, A.: Uncertainty in river discharge observations: a quantitative analysis, Hydrol. Earth Syst. Sci.,he 13, 913–921, https://doi.org/10.5194/hess-13-913-2009, 2009.

This  is a very useful and complete dataset of test cases for hydraulic simulation models.