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Rip current evidence by hydrodynamic simulations, bathymetric surveys and UAV observation
- Source :
- Natural Hazards and Earth System Sciences, Vol 17, Pp 1493-1503 (2017)
- Publication Year :
- 2017
- Publisher :
- Copernicus Publications, 2017.
-
Abstract
- The prediction of the formation, spacing and location of rip currents is a scientific challenge that can be achieved by means of different complementary methods. In this paper the analysis of numerical and experimental data, including UAV observation, allowed to detect the presence of rip currents and rip channels at the mouth of Sele river, in the Gulf of Salerno, southern Italy. The dataset used to analyze these phenomena consisted of two different bathymetric surveys, a detailed sediment 5 analysis and a set of high-resolution wave numerical simulations, completed with satellite and UAV observation. The grain size trend analysis and the numerical simulations allowed to identify the rip current system, forced by topographically constrained channels incised on the seabed, which were detected by high resolution bathymetric surveys. The study evidenced that on the coastal area of the Sele mouth grain-size trends are controlled by the contribution of fine sediments, which exhibit suspended transport pathways due to rip currents and longshore currents. The results obtained were confirmed by satellite and UAV 10 observations in different years.
- Subjects :
- lcsh:GE1-350
021110 strategic, defence & security studies
010504 meteorology & atmospheric sciences
Sediment Analysis
Remotely piloted aircraft
lcsh:QE1-996.5
0211 other engineering and technologies
lcsh:Geography. Anthropology. Recreation
coastal geomorphology, rip currents, wave and hydrodynamic model, coastal hazard, Sele river, Italy, RPAS observation
02 engineering and technology
01 natural sciences
lcsh:TD1-1066
lcsh:Geology
lcsh:G
General Earth and Planetary Sciences
Bathymetry
lcsh:Environmental technology. Sanitary engineering
Earth and Planetary Sciences (all)
Geology
Seabed
Rip current
lcsh:Environmental sciences
0105 earth and related environmental sciences
Remote sensing
Subjects
Details
- Language :
- English
- ISSN :
- 16849981 and 15618633
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Natural Hazards and Earth System Sciences
- Accession number :
- edsair.doi.dedup.....1302dbff47f0fe3b1d704c0711e89961