In the Caldera coastal district of Northern Chile, the marine terraces of Quaternary age are characterized by steep cliffs dissected by deep gullies, from which torrential streams are formed. The gullies are controlled by the scarps of the terraces. Climate conditions, such as the presence of Ocean waters upwelling and El Niño, cause sporadic rainfall events. Hence, the micro-watersheds and streams become active and function as torrential channels producing debris flows. Moreover, torrential systems drain into the urban area of ??Caldera, causing flooding in the lower parts of the city. The city is growing into the area influenced by floodingand debris flows hazard and thus making vulnerable the resident population and infrastructure.

Dinámica actual de microcuencas del desierto costero de Atacama (Caldera, Chile) y su influencia en la generación de amenaza / Maria Victoria Soto Baurle; Carmen Paz Castro Correa; Michael Maerker; Giuliano Rodolfi. - In: GEOGRAFIA FISICA E DINAMICA QUATERNARIA. - ISSN 0391-9838. - STAMPA. - 35-1:(2012), pp. 79-89. [10.4461/GFDQ.2012.35.8]

Dinámica actual de microcuencas del desierto costero de Atacama (Caldera, Chile) y su influencia en la generación de amenaza

MAERKER, MICHAEL;RODOLFI, GIULIANO
2012

Abstract

In the Caldera coastal district of Northern Chile, the marine terraces of Quaternary age are characterized by steep cliffs dissected by deep gullies, from which torrential streams are formed. The gullies are controlled by the scarps of the terraces. Climate conditions, such as the presence of Ocean waters upwelling and El Niño, cause sporadic rainfall events. Hence, the micro-watersheds and streams become active and function as torrential channels producing debris flows. Moreover, torrential systems drain into the urban area of ??Caldera, causing flooding in the lower parts of the city. The city is growing into the area influenced by floodingand debris flows hazard and thus making vulnerable the resident population and infrastructure.
35-1
79
89
Maria Victoria Soto Baurle; Carmen Paz Castro Correa; Michael Maerker; Giuliano Rodolfi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2158/826134
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