ENCHENTES NO RIO GRANDE DO SUL DO SÉCULO XXI (the floods in Rio Grande do Sul during 21th century)
Abstract
No Rio Grande do Sul, as enchentes constituem-se em fenômenos
naturais já conhecidos pela população, em especial, aquelas que habitam
os vales dos principais rios sul-rio-grandenses. O objetivo geral desta
pesquisa consistiu em identificar as correntes perturbadas e os tipos de
tempo responsáveis pela gênese das enchentes nas três Regiões
Hidrográficas do Estado entre os anos de 2000 e 2011. Aplicou-se
metodologia baseando-se no Ritmo Climático. Nesse sentido, observou-se
que a maior parte das enchentes ocorreu em função de ciclos climáticos
nos quais havia a participação da Frente Estacionária e Ciclogêneses,
com e tipos de tempo inerentes aos domínios destes sistemas.
Palavras-chave: Enchentes; Regiões Hidrográficas; Correntes Perturbadas; Tipos de tempo.
ABSTRACT
In
Rio Grande do Sul, the floods are natural phenomena in the known
population, in particular those that inhabit the valleys of major rivers
in the State. The objective of this research concerned to identify the
disturbed currents and weather types responsible for the genesis of
floods in three Hidrographic Basins regions in the State, between the
years 2000 and 2011. Methodology was applied based on the rhythm of
Climate. Accordingly, it was observed that most of the flooding occurred
due to climatic cycles in which there was the participation of the
stationary front and cyclogenesis with time and types of fields inherent
to such systems.
Key words: Floods; Hidrographic Basins regions; Disturbed currents; Weather types.
RESUMEN
En
Rio Grande do Sul, las inundaciones son fenómenos naturales conocidos
por la población, especialmente a los que habitan en los valles de los
principales ríos del estado. El objetivo general de esta investigación
fue identificar las corrientes alteradas y tipos climáticos responsables
de la génesis de las inundaciones en las tres demarcaciones
hidrográficas del estado entre 2000 y 2011. Metodología aplicada se basa
en el ritmo de clima. En este sentido, se observó que la mayor parte de
las inundaciones se produjeron debido a los ciclos climáticos en los
que no había participación fija delantera y la ciclogénesis con el
tiempo y tipos de áreas inherentes a estos sistemas.
Palabras-claves: Inundaciones; Regiones hidrográficas; Sistemas de producción de lluvia; Tipos de tiempo.
Keywords
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