ANTHROPIC EXPANSION IN THE BARIGUI RIVER WATERSHED BETWEEN 1999 AND 2019 AND ITS IMPACT ON SURFACE FLOW ASSESSED BY THE CHANGE OF ITS CURVE-NUMBER (CN)
Keywords:
CN-SCS, Landsat, land cover, remote sensingAbstract
The monitoring of anthropic expansion in river basins from the assessment of land cover is very useful for water resources management, as in the case of the CN-SCS rainfall-runoff model, which uses the concept of curve number (CN) to estimate which the rainfall potential to become runoff based on the watershed’s soil and land cover. This research evaluated the evolution of land cover in the Barigüi River basin between 1999 and 2019 and its impact on hydrological characteristics based on the variation of their CN. Therefore, Landsat images were classified for the study years and the hydrological types of soil in the basin were defined. The results indicated that there was a significant anthropic advance in the region, with an increase in urbanization (~21 km2) and a reduction in forested areas (~22 km2). However, this advance did not affect significantly the total CN value of the basin, due to the predominant, more impermeable type of soil, and how the changes in land cover occurred, with flooding of wetlands and the consequent increase in permeability in some regions.
Downloads
Published
Issue
Section
License
Copyright (c) 2021 Revista de Gestão de Água da América Latina (Water Management Journal in Latin America)
This work is licensed under a Creative Commons Attribution 4.0 International License.
When sending the manuscript, notice that:
To be responsible for the other authors, when applicable, as co-responsible for the technical and scientific content of the article according to Article 5 of Brazilian Law N. 9610, regarding Copyright.
All statements published in the manuscript are the sole responsibility of the authors. However, all published material becomes the property of REGA, which reserves the copyright. Therefore, no material published in REGA may be reproduced without the written permission of REGA. All authors of articles submitted to REGA must sign a Copyright Transfer Agreement, which will take effect from the date of acceptance of the article. This term will be requested by REGA prior to the publication of the article. The author responsible for the article will receive, free of charge, the electronic record of the publication (in PDF format).
All articles published open access will be immediately and permanently free for everyone to read, download, copy and distribute. Permitted reuse is defined by your choice of one of the following user licenses:
Creative Commons Attribution (CC BY): lets others distribute and copy the article, to create extracts, abstracts, and other revised versions, adaptations or derivative works of or from an article (such as a translation), to include in a collective work (such as an anthology), to text or data mine the article, even for commercial purposes, as long as they credit the author(s), do not represent the author as endorsing their adaptation of the article, and do not modify the article in such a way as to damage the author’s honor or reputation.
Author Rights
For open access publishing this journal uses an exclusive licensing agreement. Authors will retain copyright alongside scholarly usage rights and REGA will be granted publishing and distribution rights.
Author Self-Archiving Policy
This journal permits and encourages authors to post items submitted to the journal on personal websites and institutional or funder repositories after publication. The final published PDF version should be used and bibliographic details that credit the publication in this journal should be included.
