![]() ![]() Ophiolitic rocks cropping on Calabria territory, southern Italy, can hold asbestiform minerals potentially harmful for human health. Among drought indices, we used the Standardized Precipitation Index (SPI) which can be considered the most robust and effective, since it can be calculated for different time-scales and can be used to analyse different drought categoriesĪsbestiform minerals in ophiolitic rocks of Calabria ( southern Italy).Ĭampopiano, Antonella Olori, Angelo Spadafora, Alessandra Rosaria Bruno, Maria Angelosanto, Federica Iannò, Antonino Casciardi, Stefano Giardino, Renato Conte, Maurizio Oranges, Teresa Iavicoli, Sergio For each event, we used as climatic descriptors a drought index for monitoring drought phenomena. In this case, due to the spatial and temporal characteristics of drought, data are collected both at municipal and regional scale, and the temporal scale is generally monthly or annual. In addition, we recently carried out a similar historical research to identify the main drought events affecting the region. For each event, as a measure of the magnitude of rainfall, the return period of the daily rainfall recorded during the event has been evaluated. The analysis of the entire catalogue allows highlighting the regional Damaging Hydrogeological Events (DHE), defined as periods of intense rain causing damage on regional sectors conventionally selected as larger than 30% of the entire regional territory. From these sources, we selected information on damage caused by rain related phenomena at a municipal scale and chronologically sorted by year, month and day. The catalogue has been built using the typical historical data sources as chronicles, diaries, historical books, local and regional agencies, press archives, scientific papers, and documents of civil protection offices. The present paper is based on the historical database ASICal (Historically flooded areas in Calabria), a catalogue of effects of floods and rain-related landslides that occurred in the region since the XIX Century. In fact, due to its oblong shape, to its position in the middle of the Mediterranean Basin, and for its mountainous nature, Calabria shows a high spatial variability of the climatic features and of related phenomena such as floods and drought. ![]() Petrucci, OlgaĬalabria ( southern Italy) is a region exposed to the effects of contrasting climatic and hydrological phenomena. Analysis of extreme hydrological phenomena in southern Italy ( Calabria region)Ĭaloiero, Tommaso Aceto, Luigi Aurora Pasqua, A. ![]()
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