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.
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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Guidicini, G., Iwasa, O.Y. Tentative correlation between rainfall and landslides in a humid tropical environment. Bulletin of the International Association of Engineering Geology 16, 13–20 (1977). https://doi.org/10.1007/BF02591434
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DOI: https://doi.org/10.1007/BF02591434