STUDY OF THE LANDFORMS OF THE IBICUÍ RIVER BASIN WITH USE OF TOPOGRAPHIC POSITION INDEX

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DOI:

https://doi.org/10.20502/rbg.v19i2.1383

Palabras clave:

Basin, Landforms, Topographic Position Index, Geomorphometry

Resumen

The Topographic Position Index (TPI) is an algorithm which calculates the difference of the elevation between a central pixel ( and the mean of the elevation of its surroundings () surroundings defined by of a radius determined by the user. The study was developed in the Ibicuí Basin, located in the west of Rio Grande do Sul, with a surface area of 46,602.58 km², with a perimeter of 1,268.76 km and an 8th order hierarchy. The TPI analysis associated with inclination determined 08 landforms elements in the BHRI: flat area elements, top elements identified as flat and wavy, springs, slopes and the footslopes and channel elements that can be closed or opened.

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Biografía del autor/a

Romario Trentin, Universidade Federal de Santa Maria

Possui graduação em Geografia, mestrado em Geografia e doutorado em Geografia (2011). Atualmente é Professor Adjunto da Universidade Federal de Santa Maria. Tem experiência na área de Geociências, com ênfase em Geotecnologias. Atuando principalmente nos seguintes temas:Bacia Hidrográfica, Arenização, Geomorfologia, Uso e Ocupação da Terra, Caracterização Geoambiental.

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Publicado

2018-04-01

Cómo citar

Trentin, R., & Robaina, L. E. de S. (2018). STUDY OF THE LANDFORMS OF THE IBICUÍ RIVER BASIN WITH USE OF TOPOGRAPHIC POSITION INDEX. Revista Brasileira De Geomorfologia, 19(2). https://doi.org/10.20502/rbg.v19i2.1383

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