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Geosciences 2018, 8(9), 340; https://doi.org/10.3390/geosciences8090340

Numerical Modeling of Flow Patterns Applied to Analysis of Susceptibility to Movements of the Ground

Department of Geology, Faculty of Sciences, University of Salamanca, 37008 Salamanca, Spain
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Received: 31 July 2018 / Revised: 6 September 2018 / Accepted: 7 September 2018 / Published: 9 September 2018
(This article belongs to the Special Issue Tectonics and Morphodynamics)
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Abstract

Mass movements in deformed areas of natural relief deformed by seismotectonic factors are one of the most destructive and recurrent natural hazards in the Republic of Ecuador, especially during intense rain periods, the El Niño phenomenon, or due to earthquakes such as the one that occurred on 16 April 2016 in the Ecuadorian coastline. This study proposes the application of Hydrological Model D8 and its derived morphometric parameters like slope, orientation of the slope, and curvatures, extracted from the high spatial resolution Digital Elevation Model (DEM), implemented in programs such as Rockworks 7 (gridzo), SURFER (downwards slope), ArcView (flowacc), and SAGA (curvatures) to obtain runoff flow, structural geological lineaments, and superficial deformations of the topographic relief that are the origin of erosion, superficial landslides, lateral propagation, of the rock–soil complex, mass flows, and deep gravitational deformations. This methodology has been validated in three locations with intense deformations: two in Ecuador and one in Spain. The DEM were obtained from the Ecuadorian Spatial Institute (ESI) (spatial resolution of 10 m), the Rural Technological Infrastructure and Information National System (SIGTIERRAS) (spatial resolution of 5 m), and the Council of Andalusia (spatial resolution of 5 m). View Full-Text
Keywords: runoff flow; superficial deformations; digital elevation map (DEM); hydrological model; mass flows runoff flow; superficial deformations; digital elevation map (DEM); hydrological model; mass flows
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Cando Jácome, M.; Martínez-Graña, A. Numerical Modeling of Flow Patterns Applied to Analysis of Susceptibility to Movements of the Ground. Geosciences 2018, 8, 340.

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