Tecca, P.R., Galgaro, A., Genevois, R., Deganutti, A.M., 2003, Development of a remotely controlled debris flow monitoring system in the Dolomites (Acquabona, Italy)., Hydrological processes (Print) 17 (2003): 1771–1784. doi_10.1002/hyp.1212,
URL: http://www.cnr.it/prodotto/i/41462

Direct measurements of the hydrological conditions for debris flow occurrence and of flow behaviour are of the outmost importance for developing effective flow prevention techniques. An automated and remotely controlled monitoring system was installed in Acquabona Creek in the Dolomites, Italian Eastern Alps, where debris flows occur every year. Its present configuration consists of three on-site stations, located in the debris-flow initiation area, in the lower channel and in the retention basin. The monitoring system is equipped with sensors for measuring rainfall, pore-waterwater pressure in the mobile channel bottom, ground vibrations, debris flow depth, total normal stress and fluid pore-pressure at the base of the flow. Three video cameras take motion picture of the events at the initiation zone, in the lower channel and in the deposition area. Data from the on-site stations are radio-transmitted to an off-site station and stored in a host PC, from where they are telemetrically downloaded and used by the Padova University for study of debris flows. The efficiency of the sensors and of the whole monitoring system has been tested by the analysis of data collected so far. Examples of these data are presented and briefly discussed. New applications of the used technology, derived by the development of this system, if implemented to the numerous debris flows existing in the Dolomitic Region, will provide civil defence and residents of warning of impending debris flows.

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