0000000000340143
AUTHOR
Cipolla G.
Weather circulation patterns as precursor of heavy rainfall events: an application to Sicily, Italy
Since the impacts of climate change on the environment have been constantly rising over the last decades, scientists have paid much attention to understanding the effects of this phenomenon. Climate change leads to different kinds of extremes, such as heavy rainfall events, characterized by short duration and high intensity, and drought, which can cause the problem of water scarcity over a certain area. These types of extreme events cause several damages for the affected areas since they can result in loss of human lives and economic damages. In particular, heavy rainfall events, which are often associated with convective precipitation because of their characteristics, may result in flash f…
Rainfall depth-duration-frequency curves for short-duration precipitation events in Sicily (Italy)
The design criteria of the hydraulic infrastructures, including, for instance, those for flood defense, urban drainage systems, reservoirs spillways and bridges, are based on the coupled analysis of the magnitude of rainfall events for a fixed duration and their estimated annual exceedance probability. The well-known rainfall depth-duration-frequency (DDF) curves, typically derived from the analysis of long historical annual maxima data series, synthesize the relationships between rainfall depth, duration and exceedance probability which is usually expressed as a return period. The time-resolution of rainfall data typically available for the construction of DDF curves and provided by gauges…
Precipitazione e pattern di circolazione atmosferica in Sicilia
Gli eventi di precipitazione intensa possono spesso causare perdita di vite umane e ingenti danni di tipo economico, soprattutto nei casi in cui questi colpiscano piccoli bacini caratterizzati da bassi tempi di corrivazione. Dal momento che alcuni schemi di circolazione atmosferica comportano un accumulo di umidità in certe parti dell’atmosfera, a seguito del quale possono scatenarsi eventi di particolare entità, la circolazione atmosferica può essere utilizzata come un indicatore del verificarsi di eventi di precipitazione intensa. Nel presente lavoro si è cercato di trovare una relazione tra alcuni pattern di circolazione atmosferica, sviluppati dal UK Met Office, e i massimi annuali di p…