Dear Authors:
Your paper has received some positive appraisals, but also a few criticisms from the reviewers deserving attention and to be addressed properly. In your preliminary responses during the discussion phase you also mentioned that a revised version is under way already. Whereas the scientific significance and the presentation of your study are fairly good, efforts should be made to improve the scientific quality of the paper. I would suggest you should discuss the results more thoroughly, so as the paper becomes more attractive to a wider readership. Please, submit a revised version of your manuscript, together with a detailed point-bypoint reply to all of the comments received so far. Also note that a second round of reviewing step might be required.

Dear Authors:
Your revised manuscript is close to be accepted for final publication in HESS. Please, give a look at the additional technical corrections suggested by one of the referees and see if they are pertinent and feasable. Provide me your response to these suggested corrections and the relevant new revision.

Dear Authors,
he last version of your manuscript can now be accepted as it is. Congratulations!
Nunzio Romano