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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Water engineering : Numerical modelling of cyclone-induced waves using wavewatch iii™
Numerical modelling of cyclone-induced waves using wavewatch iii™
Wind waves are one of the most substantial marine hydrodynamics phenomena and its prediction is of great importance.
Nowadays, numerical models such as WAVEWATCH III™ (WWIII) are comprehensively used for modelling and predicting
deep water waves. Different methods have been included in WWIII for modelling of the wind-sea interaction and wave
dissipation in deep water. Using each of these methods in wave modelling led to partly various results. In this research, the
capability of WWIII model has been evaluated in simulation of cyclone induced waves. The Nilofar cyclone which was
generated in the Arabian Sea on October 25th, 2014 was considered and the wave fields were simulated in the
northwestern Indian Ocean using WWIII numerical model. Simulations were carried out using different parameterizations in
model including Tolman and Chalikov, BJA, Bidlot and WAM4. To do so, NCEP/GFS global model forecast wind data has
been used. Then, the simulated wave heights obtained from different parameterizations were compared in a specified
station. Results indicated that all of the parameterizations lead to similar values for wave direction; while, there are some
discrepancies in the simulated wave heights obtained from different parameterizations. Finally, the simulated significant
wave heights were compared with the altimetry data from JASON-2 satellite and performance of each parameterization for
simulation of significant wave height was determined.
File Size : 743,105 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Water engineering
Date Published : 26/08/2015
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