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Tentative correlation between rainfall and landslides in a humid tropical environment

  • Guidicini G. 
  • Iwasa O. Y. 
Theme 1 Systematic Reconnaissance Mapping and Registration of Slope Movements. Estimation of Risks Dueto Landslides. Influence of Geological and Climatic Conditions on Slope Instability Methods and Economic Importance of the Registration of Slope Movements General Report Contributions

Summary

This paper contains an analysis of the precipitation records of nine regions in Brazil which were, in the last years, the stage of catastrophes at the time of intense rainfall events. A tentative correlation between rainfall and landslides was then established. The final result of this correlation is the drawing of nine “danger charts”, one for each region. These charts define four zones of increasing risk of generation of landslides and, if conveniently utilized by Government agencies, might constitute a warning element, making possible a minimization of the consequences of these natural phenomena.

Keywords

Hydraulic Conductivity Rainfall Event Rainfall Record Precipitation Record Intense Rainfall Event 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Essai de correlation entre la pluviosite et les glissements de terrain sous climat tropical humide

Résumé

Ce travail contient une analyse des rélèves pluviométriques de neuf régions du Brésil qui ont été affectées par des glissements de terrain catastrophiques, au cours d’épisodes de pluies intenses, durant ces dernières années. La corrélation entre la pluviosité et les glissements a donc pu être établie. Le résultat final de ces corrélations consiste à établir une “carte de prévision de danger”, pour chaque région étudiée. Ces carte définissent quatre zones de risques croissants suivant la fréquence des glissements et, utilisées par les entités statales, peuvent constituer une forme d’alerte, tout en essayant d’atténuer les effects de ces phénomènes naturels.

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References

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Copyright information

© International Association of Engineering Geology 1977

Authors and Affiliations

  • Guidicini G. 
    • 1
  • Iwasa O. Y. 
    • 1
  1. 1.Instituto de Pesquisas Tecnológicas do Estado de São Paulo S/A C.P. 7141São Paulo

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