Tropical Cyclones asymmetry, parametric presentation and discussion

Olfateh, Mohammad, Callaghan, David P., Baldock, Tom E. and Nielsen, Peter (2015). Tropical Cyclones asymmetry, parametric presentation and discussion. In: Australasian Coasts & Ports Conference 2015: 22nd Australasian Coastal and Ocean Engineering Conference and the 15th Australasian Port and Harbour Conference. Australasian Coasts & Ports Conference 2015, Auckland, New Zealand, (642-646). 15-18 September 2015.

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Name Description MIMEType Size Downloads
Author Olfateh, Mohammad
Callaghan, David P.
Baldock, Tom E.
Nielsen, Peter
Title of paper Tropical Cyclones asymmetry, parametric presentation and discussion
Conference name Australasian Coasts & Ports Conference 2015
Conference location Auckland, New Zealand
Conference dates 15-18 September 2015
Convener Engineers Australia and IPENZ
Proceedings title Australasian Coasts & Ports Conference 2015: 22nd Australasian Coastal and Ocean Engineering Conference and the 15th Australasian Port and Harbour Conference
Place of Publication Auckland, New Zealand
Publisher Engineers Australia and IPENZ
Publication Year 2015
Sub-type Fully published paper
Open Access Status Not yet assessed
ISBN 9781922107794
Start page 642
End page 646
Total pages 5
Language eng
Abstract/Summary Parametric models of vortex type motions are widely used to reconstruct the TC wind and pressure fields. These models are axisymmetric and do not capture the asymmetries due to blocking action, boundary layer drag, the beta effect or landfall. Based on the azimuthal distribution of wind speed for 24 Hurricanes, a new directional function is presented to be used with the H80 [4] parametric model. This model introduces three new parameters, adjusting the degree of asymmetry of the TC and the spatial distribution of the asymmetry. The model performance is evaluated for Atlantic Hurricanes using the NOAA-HRD hurricane wind analysis system (H∗Wind) archive. The results show that besides capturing a physical property of the vortex, the new model constructs the wind field more accurately.
Subjects 2212 Ocean Engineering
Keyword Asymmetry
Parametric model
Tropical cyclones
Q-Index Code E1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Conference Paper
Collection: School of Civil Engineering Publications
 
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