Two referees have carefully reviewed this manuscript. They both appreciated the research work and suggested a minor revision of the paper. Useful comments were provided. Thus, I invite the authors to revise their manuscript by addressing all referees's comments and include a systematic response letter in the next submission to HESS.
Also, I would like to add a review comment. In my opinion, this global dataset might open interesting opportunities for socio-hydrological research about the dynamics of coupled human-water systems, which is one of the focuses of the current IAHS's scientific decade, Panta Rhei. Hence, I think that would be worth considering to briefly discuss in the revised paper possible links (if any) to socio-hydrology.

All Referees' comments were properly addressed in this new version of the manuscript. I am glad to accept this paper to be published on Hydrology and Earth System Sciences.