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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Abstract
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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