A Systematic, Automated Approach for River Segmentation Tested on the Magdalena River (Colombia) and the Baker River (Chile)

Nardini, Andrea and Yépez, Santiago and Mazzorana, Bruno and Ulloa, Héctor and Bejarano Carrión, María Dolores and Laraque, Alain (2020). A Systematic, Automated Approach for River Segmentation Tested on the Magdalena River (Colombia) and the Baker River (Chile). "Water", v. 12 (n. 10); pp. 2827-2852. ISSN 2073-4441. https://doi.org/10.3390/w12102827.

Description

Title: A Systematic, Automated Approach for River Segmentation Tested on the Magdalena River (Colombia) and the Baker River (Chile)
Author/s:
  • Nardini, Andrea
  • Yépez, Santiago
  • Mazzorana, Bruno
  • Ulloa, Héctor
  • Bejarano Carrión, María Dolores
  • Laraque, Alain
Item Type: Article
Título de Revista/Publicación: Water
Date: 12 October 2020
ISSN: 2073-4441
Volume: 12
Subjects:
Freetext Keywords: river reaches; segmentation; automated approach; fluvial geomorphology; River Styles
Faculty: E.T.S.I. Montes, Forestal y del Medio Natural (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

Full text

[img]
Preview
PDF - Requires a PDF viewer, such as GSview, Xpdf or Adobe Acrobat Reader
Download (1MB) | Preview

Abstract

This paper proposes a systematic procedure to identify river reaches from a geomorphic point of view. Their identification traditionally relies on a subjective synthesis of multi-dimensional information (e.g., changes of slope, changes of width of valley bottom). We point out that some of the attributes adopted to describe geomorphic characters of a river (in particular sinuosity and confinement) depend on the length of reaches, while these latter are not yet identified; this is a source of ambiguity and introduces, at least conceptually, an unpleasant, implicit, iterative procedure. We introduce a new method which avoids this difficulty. Furthermore, it is simple, objective, and explicitly defined, and as such, it is automatable. The method requires to define and determine a set of intensive attributes, i.e., attributes that are independent of the segment length. The reaches are then identified by the intersection of the segmentations induced by such attributes. We applied the proposed procedure in two case studies, the Magdalena River (Colombia) and the Baker River (Chile), and investigated whether the adoption of the traditional approach for the definition of reaches would lead to a different result. We conclude that there would be no detectable differences. As such, the method can be considered an improvement in geomorphic river characterization.

More information

Item ID: 66876
DC Identifier: http://oa.upm.es/66876/
OAI Identifier: oai:oa.upm.es:66876
DOI: 10.3390/w12102827
Official URL: https://www.mdpi.com/2073-4441/12/10/2827/htm
Deposited by: Memoria Investigacion
Deposited on: 29 Apr 2021 08:43
Last Modified: 29 Apr 2021 08:43
  • Logo InvestigaM (UPM)
  • Logo GEOUP4
  • Logo Open Access
  • Open Access
  • Logo Sherpa/Romeo
    Check whether the anglo-saxon journal in which you have published an article allows you to also publish it under open access.
  • Logo Dulcinea
    Check whether the spanish journal in which you have published an article allows you to also publish it under open access.
  • Logo de Recolecta
  • Logo del Observatorio I+D+i UPM
  • Logo de OpenCourseWare UPM