GEOMORPHOLOGY OF THE MUNICIPALITY OF ARROIO DO PADRE (RIO GRANDE DO SUL STATE) AND ITS RELATIONS WITH THE GEOMORPHOLOGICAL CHANGES DUE TO NOVEMBER 15TH 2010 FLASH-FLOOD

Authors

  • Mauricio Meurer Universidade Federal de Pelotas
  • Cláudia Werner Flach Universidade Federal de Pelotas

DOI:

https://doi.org/10.5902/2179460X15001

Keywords:

Arroio do Padre, enxurrada, cartografia geomorfológica.

Abstract

Brazil is one of the ten countries most touched by natural disasters in the world, being mainly affected by events of hydrological origin. In the state of Rio Grande do Sul, the municipality of Arroio do Padre was hit by three episodes of high intensity rainfall between the years of 2009 to 2011 This paper aims to develop a geomorphological mapping for the municipality of Arroio do Padre, identifying the geomorphological changes resulting from the flash-flood of November 15th 2010, and identifying with some residents of the hardest hit areas their perception about this event. This research showed that the flash-flood which occurred in Arroio do Padre was caused by a large rainfall volume in a short time, but the steepest slopes and soils with limitations to infiltration played an important role in the triggering of the mass movements . Both geomorphological map as the mapping of the consequences of the flash-flood showed that there are preferential areas of greatest risk to the occurrence of erosion, mass movements, flooding and depositional processes, paving the way for future studies of vulnerability.

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Author Biographies

Mauricio Meurer, Universidade Federal de Pelotas

Cláudia Werner Flach, Universidade Federal de Pelotas

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Published

2015-09-11

How to Cite

Meurer, M., & Flach, C. W. (2015). GEOMORPHOLOGY OF THE MUNICIPALITY OF ARROIO DO PADRE (RIO GRANDE DO SUL STATE) AND ITS RELATIONS WITH THE GEOMORPHOLOGICAL CHANGES DUE TO NOVEMBER 15TH 2010 FLASH-FLOOD. Ciência E Natura, 37(3), 311–328. https://doi.org/10.5902/2179460X15001

Issue

Vol. 37 No. 3 (2015)

Section

Geography

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