Ship-induced solitary Riemann waves of depression in Venice Lagoon

Parnell, Kevin E., Soomere, Tarmo, Zaggia, Luca, Rodin, Artem, Lorenzetti, Giuliano, Rapaglia, John, and Scarpa, Gian Marco (2015) Ship-induced solitary Riemann waves of depression in Venice Lagoon. Physics Letters A, 379. pp. 555-559.

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We demonstrate that ships of moderate size, sailing at low depth Froude numbers (0.37–0.5) in a navigation channel surrounded by shallow banks, produce depressions with depths up to 2.5 m. These depressions (Bernoulli wakes) propagate as long-living strongly nonlinear solitary Riemann waves of depression substantial distances into Venice Lagoon. They gradually become strongly asymmetric with the rear of the depression becoming extremely steep, similar to a bore. As they are dynamically similar, air pressure fluctuations moving over variable-depth coastal areas could generate meteorological tsunamis with a leading depression wave followed by a devastating bore-like feature.

Item ID: 37206
Item Type: Article (Research - C1)
ISSN: 1873-2429
Keywords: ship wakes; Bernoulli wake; nonlinear waves; shallow-water waves; Riemann wave; bore formation
Funders: CNR-ISMAR, Estonian Science Foundation (ESF), Estonian Ministry of Education and Research (EMER), European Regional Development Fund, Centre of Excellence in Non Linear Studies (CENS)
Projects and Grants: CNR-ISMAR Ritmare SP3-WP3-A1, ESF Grant No. 9125, EMER grant SF0140007s11, CENS Project TERIKVANT grant 3.2.0802.11-0043
Date Deposited: 25 Mar 2015 00:02
FoR Codes: 04 EARTH SCIENCES > 0406 Physical Geography and Environmental Geoscience > 040699 Physical Geography and Environmental Geoscience not elsewhere classified @ 80%
05 ENVIRONMENTAL SCIENCES > 0502 Environmental Science and Management > 050205 Environmental Management @ 10%
02 PHYSICAL SCIENCES > 0203 Classical Physics > 020303 Fluid Physics @ 10%
SEO Codes: 88 TRANSPORT > 8802 Water Transport > 880299 Water Transport not elsewhere classified @ 50%
96 ENVIRONMENT > 9609 Land and Water Management > 960903 Coastal and Estuarine Water Management @ 50%
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