NDLI: Numerical modeling of space-time wave extremes using WAVEWATCH III

Content Provider	Springer Nature Link
Author	Barbariol, Francesco Alves, Jose Henrique G. M. Benetazzo, Alvise Bergamasco, Filippo Bertotti, Luciana Carniel, Sandro Cavaleri, Luigi Y. Chao, Yung Chawla, Arun Ricchi, Antonio Sclavo, Mauro Tolman, Hendrik
Copyright Year	2017
Abstract	A novel implementation of parameters estimating the space-time wave extremes within the spectral wave model WAVEWATCH III (WW3) is presented. The new output parameters, available in WW3 version 5.16, rely on the theoretical model of Fedele (J Phys Oceanogr 42(9):1601-1615, 2012) extended by Benetazzo et al. (J Phys Oceanogr 45(9):2261–2275, 2015) to estimate the maximum second-order nonlinear crest height over a given space-time region. In order to assess the wave height associated to the maximum crest height and the maximum wave height (generally different in a broad-band stormy sea state), the linear quasi-determinism theory of Boccotti (2000) is considered. The new WW3 implementation is tested by simulating sea states and space-time extremes over the Mediterranean Sea (forced by the wind fields produced by the COSMO-ME atmospheric model). Model simulations are compared to space-time wave maxima observed on March 10th, 2014, in the northern Adriatic Sea (Italy), by a stereo camera system installed on-board the “Acqua Alta” oceanographic tower. Results show that modeled space-time extremes are in general agreement with observations. Differences are mostly ascribed to the accuracy of the wind forcing and, to a lesser extent, to the approximations introduced in the space-time extremes parameterizations. Model estimates are expected to be even more accurate over areas larger than the mean wavelength (for instance, the model grid size).
Starting Page	535
Ending Page	549
Page Count	15
File Format	PDF
ISSN	16167341
Journal	Deutsche Hydrografische Zeitschrift
Volume Number	67
Issue Number	3-4
e-ISSN	16167228
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2017-01-23
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Space-time wave extremes WAVEWATCH III Ocean waves Stereo vision Numerical modeling Oceanography Geophysics/Geodesy Atmospheric Sciences Fluid- and Aerodynamics Monitoring/Environmental Analysis
Content Type	Text
Resource Type	Article
Subject	Oceanography

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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