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Variability in Spatial Patterns of Long Nonlinear Waves from Fast Ferries in Tallinn Bay : Volume 16, Issue 2 (29/04/2009)

By Torsvik, T.

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Book Id: WPLBN0003978903
Format Type: PDF Article :
File Size: Pages 13
Reproduction Date: 2015

Title: Variability in Spatial Patterns of Long Nonlinear Waves from Fast Ferries in Tallinn Bay : Volume 16, Issue 2 (29/04/2009)  
Author: Torsvik, T.
Volume: Vol. 16, Issue 2
Language: English
Subject: Science, Nonlinear, Processes
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2009
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Soomere, T., Parnell, K. E., Didenkulova, I., & Torsvik, T. (2009). Variability in Spatial Patterns of Long Nonlinear Waves from Fast Ferries in Tallinn Bay : Volume 16, Issue 2 (29/04/2009). Retrieved from http://hawaiilibrary.net/


Description
Description: Bergen Center for Computational Science, UNIFOB, University of Bergen, Thormøhlensgate 55, 5008 Bergen, Norway. High-speed ferries are known to generate wakes with unusually long periods, and occasionally large amplitudes which may serve as a qualitatively new forcing factor in coastal regions that are not exposed to a sea swell. An intrinsic feature of such wakes is their large spatial variation. We analyze the variability of wake conditions for the coasts of Tallinn Bay, the Baltic Sea, a sea area with very intense fast ferry traffic. The modelled ship wave properties for several GPS-recorded ship tracks reasonably match the measured waves in terms of both wave heights and periods. It is shown that the spatial extent of the wake patterns is very sensitive to small variations in sailing conditions. This feature leads to large variations of ship wave loads at different coastal sections with several locations regularly receiving high ship wave energy. The runup of the largest ship wakes on the beach increases significantly with an increase in wave height whereas shorter (period <2–5 s) waves merge into longer waves in the shoaling and runup process.

Summary
Variability in spatial patterns of long nonlinear waves from fast ferries in Tallinn Bay

Excerpt
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