after examanitation of the answer provided to the different comments put forward by the two referees, It appears that the authors have taken into account most of the corrections/suggestions asked/made. However, it also appears that the present form of the manuscript is not fully suitable for publication (see the attached document). Restriction refer both to the form of the manuscript but also and mainly to the structuration of the discussion (more specifically to: (1) the links between the results and the discussion, and (2) the conclusions/recommandations originating from the paper itself. Both of these points are currently not clear enough.
Based on these rationale, my decision is to accept the manuscript providing that minor corrections are provided.

Suggested changes have been properly handled and the whole discussion significantly improved. The anuscript is now suitable for publication