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. 2017 Jan 12;7:40527. doi: 10.1038/srep40527

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Copyright © 2017, The Author(s)

This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/

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Flood concentration (Fl_a) for 1970–1990 (a) and 1990–2010 (b) as related to the landscape topography (elevation m a.s.l.), climatic concentration -Cl_a -, and changes in imperviousness -Imp_ch -. The percentage changes in imperviousness are shown as multiples of 10². Elevation was computed considering a Digital Elevation Model with a 50 m cell size. Thus they are an approximation of the actual elevation.