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DEM-based Geomorphological Mapping and Landforms Characterization of a Tropical Karst Environment in Southeastern Brazil

DEM-based Geomorphological Mapping and Landforms Characterization of a Tropical Karst Environment in Southeastern Brazil

This is a Preprint and has not been peer reviewed. The published version of this Preprint is available: https://doi.org/10.1016/j.jsames.2019.04.013. This is version 2 of this Preprint.

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Authors

Guilherme Pereira Bento Garcia, Carlos Henrique Grohmann

Abstract

This work presents a 1:10,000 geomorphological mapping of an area in southeastern Brazil, based on morphometric analysis of Digital Elevation Models (DEMs), while classical methods focus on photo interpretation. Data derived from the DEM include elevation, slope gradient, slope aspect, vertical and horizontal curvatures, amplitude, elongation and wavelength of landforms. These parameters were used along with slope shape and drainage patterns to classify the landforms according to the Land Systems method, in which portions of the landscape that presents similar terrains attributes are grouped from regional (low detail) to local (high detail) s...  more

DOI

https://doi.org/10.31223/osf.io/t6y2e

Subjects

Earth Sciences, Geomorphology, Physical Sciences and Mathematics

Keywords

karst, geomorphology, DEM, Geomorphometry, Land Systems

Dates

Published: 2018-08-23 12:08

Last Updated: 2019-08-20 13:25

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License

CC BY Attribution 4.0 International