http://www.cnr.it/ontology/cnr/individuo/prodotto/ID296929
Acoustic signatures of the 2011 Floods in the Ligurian Region (Contributo in atti di convegno)
- Type
- Label
- Acoustic signatures of the 2011 Floods in the Ligurian Region (Contributo in atti di convegno) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Alternative label
M.N. Anagnostou, S. Pensieri, E.N. Anagnostou, R. Bozzano, R. Bechini, J.A. Nystuen (2013)
Acoustic signatures of the 2011 Floods in the Ligurian Region
in Underwater Acoustics, Corfù, 23-28 June 2013
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M.N. Anagnostou, S. Pensieri, E.N. Anagnostou, R. Bozzano, R. Bechini, J.A. Nystuen (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#pagineTotali
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- National Observatory of Athens,National Research Council of Italy,Civil and Environmental Engineering University of Connecticut, National Research Council of Italy,Agenzia Regionale per la Protezione Ambientale Piemonte,Applied Physics Laboratory, University of Washington (literal)
- Titolo
- Acoustic signatures of the 2011 Floods in the Ligurian Region (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#isbn
- Abstract
- The Liguria Sea is a deep basin showing peculiar hydrodynamic and meteooceanographic
features and steep Alpine and Apennine orographic boundaries. The sea is
affected by a permanent basin-wide cyclonic circulation involving both the surface and
intermediate waters. In the atmosphere powerful convection phenomena tend to occur
especially in autumn when the sea has stored a large amount of heat through the summer and
strong evaporation to the air layers above occurs and interacts with the cool and wet near
surface atmospheric boundary. Underwater acoustic measurements of rainfall have been
used to detect rainfall and classify its type (convective vs. stratiform or light precipitation)
and quantify the rainfall rates. In this study we discuss application of underwater acoustic
measurements to quantify two recent heavy precipitation events (October 25 and November
4, 2011) that caused flash floods with significant damages to properties and fatalities in the
Genoa area. Although, such type of events cannot fully forecasted by atmospheric models,
monitoring over the sea can be an attractive approach to develop data assimilation systems
that would lead to improved quantitative forecasts over flood prone areas. Since 2009, an
autonomous underwater acoustic recording and processing instrument called Passive
Aquatic Listener (PAL), has been deployed on the W1-M3A off-shore observatory moored at
the centre of the Ligurian basin. The paper studies the precipitation estimation accuracy from
PAL measurements. Data from PAL are transferred in real-time to the shore, consequently if
measurements from the system are proven quantitatively accurate it can be potentially used
for early warning of coastal floods and as in situ reference to validate satellite rainfall
retrievals over ocean surface. (literal)
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