Trends and Climate Elasticity of Streamflow in South-Eastern Brazil Basins
, Luz Adriana Cuartas 3, Marcelo E. Seluchi 3, Jose A. Marengo 3, Rong Zhang 4, Elisangela Broedel 3, Diogo de Jesus Amore 3, Regina C. S. Alvalá 3, Ana Paula M. A. Cunha 3 and José A. C. Gonçalves 1Round 1
Reviewer 1 Report
Please see attachment
Comments for author File: 
Comments.pdf
Author Response
The manuscript was strengthened by a discussion of circulation anomalies that could be associated with the reduced streamflow of our study area. Prolonged droughts in Southeast Brazil are mostly originated in the Indian Ocean (eastern Africa, western Australia and southern Asia). The formation of intense precipitation over the Indian Ocean generates disturbances in the atmosphere that propagate eastward and reach South America, contributing to the formation of a large mass of dry and hot air, which prevents the formation of rain over Southeast Brazil (L: 93-101). The methods section was clarified by the mathematical formulations used in our developments in order to make it familiar to all readers. Specific comments were also considered (Please see the attachment, answers are in green) and language corrections were implemented throughout the manuscript.
Author Response File: 
Author Response.docx
Reviewer 2 Report
The impact of climate change on streamflow is a hot issue. Trends and climate elasticity of streamflow in Southeastern Brazil basins were analysed by this study，and the introduction provide good information regarding of the research methodology and results discussion, it is qualified to published. Therefore, my suggestion is that accept after minor revision. I also would like to suggest author to highlight the new findings have been investigated in this study, including of what’s the improvement of methodology?
Several specific comments and suggestions as follows:
1. Daily potential evapotranspiration (PET) was estimated by the Hargreaves method, this method should be validated to test the accuracy and applicability.
2. In this study, 5 river basins are studying area, should give more information about the basins to describe the reasons for choosing these five basins to study, such as what’s the differences scientific problems among these five basins ?
3. to illustrated the hydrological stations in Fig. 1. to view their location and distribution.
4. to compare the results of this study to previous studies to enhance the improvement of study.
5. about the uncertainty of data used in this study, how does the uncertainty of data impact the conclusion of climate elasticity of streamflow.
Author Response
The methods section was improved to clarify the innovative method of multi-annual sub-periods to calculate elasticity as well as the discussion of the results obtained. Specific comments were also considered (Please see the attachment, answers are in green).
Author Response File: Author Response.docx
