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A statistical-based reach scale classification for the lower Tapajós river channel, eastern Amazonia by João Paulo S De Cortes; Rafael de Fraga; Fabiano N Pupim; George L Luvizotto is a scholarly article available to read on EtoBox.

What is A statistical-based reach scale classification for the lower Tapajós river channel, eastern Amazonia about?

The Tapajós river is among the largest rivers in the world and has been credited as the main affluent of the lower Amazon River. Geomorphological studies in the Tapajós commonly deal with evolutionary, hydrological, and sedimentological issues. Recently, important advances have been made in understanding the morphology and dynamics in the Tapajós, especially in the confluence zone near Santarém, eastern Amazonian Brazil. However, the lack of an independent channel classification system makes it difficult to integrate data obtained from different sources. This work presents a classification system for the lower Tapajós based on morphometric variables extracted from transversal profiles coupled with radar and optical remote sensing data. We used discriminant analysis of principal components for the first time in fluvial geomorphology to provide a clustering-based geomorphological classification, which is statistically supported. We propose a segmentation of the channel into three distinct sections referred to as narrower channel reach, higher ria reach, and lower ria reach. The results showed that the channel has a distinct morphological pattern in each of these reaches, which can al

Author

João Paulo S De Cortes; Rafael de Fraga; Fabiano N Pupim; George L Luvizotto

Publisher

SAGE Publications

Published

2021

Language

EN