IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 8 - CLIMATE CHANGE AND HAZARD MITIGATION : Developing a Tropical Cyclone Parametric Wind Model with Landfall Effect for Real-Time Prediction of...
Developing a Tropical Cyclone Parametric Wind Model with Landfall Effect for Real-Time Prediction of Wind and Storm Surge
Author : Taide Ding, Yan Ding, Yafei Jia and Mustafa Altinakar
Landfall of tropical cyclones is a critical moment when storm surges reach to their peak heights at coasts. Most existing tropical cyclone parametric wind models neglect this landfall effect. Meanwhile, real-time prediction of storm surges in regional scale coasts and oceans heavily relies on high performance computers which are expensive. In this research, a simple but accurate nonlinear hurricane cyclonic wind model is developed by considering the decay effect of landfall and the earth surface resistance. This model is validated by simulating historical hurricanes in the northern Gulf Coast. A database for determining the parameter values for decay and surface resistance has been established. It then is integrated into a storm-surge model. This integrated model is validated by simulating wind and storm surges in Hurricane Gustav (2008). To improve accuracy of the storm-surge model, a number of formulations for estimating wind stress have been tested. Finally, real-time predictions for Hurricane Isaac advisories (2012) were carried out during the hurricane duration on a laptop computer. The predicted wind and storm surges are in good agreement with NOAA?s observations.
File Size : 2,293,850 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 20/07/2016
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