Author: R. R. AlleynePublisher:
ISBN:
Category : Storm surges
Languages : en
Pages : 24
Book Description
A Numerical Model for Hurricane Wave Prediction in the Caribbean
Author: R. R. AlleynePublisher:
ISBN:
Category : Storm surges
Languages : en
Pages : 24
Book Description
A Numerical Model for the Prediction of Hurricane Formation
Author: Louis BerkofskyPublisher:
ISBN:
Category : Hurricanes
Languages : en
Pages : 112
Book Description
A Numerical Model for the Prediction of Hurricane Formation
Author: Louis BerkofskyParameterization of Maximum Wave Heights Forced by Hurricanes
Author: Sym Antonne TaylorPublisher:
ISBN:
Category :
Languages : en
Pages : 109
Book Description
In recent times, communities and structures along the Gulf of Mexico have experienced the destructive and devastating impact of hurricane surges and waves. While the impacts of surges have been studied, there exists a need for (1) the understanding of open-coast and bay environment hurricane wave conditions and (2) expedient prediction, for rapid evaluation, of wave hazards as a function of hurricane parameters. This thesis presents the coupled ADCIRC-SWAN numerical model results of wave height sensitivity based on the investigation of several hurricane parameters. Also presented is the development of parameterized maximum significant wave height models. These are determined by incorporating three forms of an equivalent fetch into (1) dimensionless best-fit equations and (2) Shoreline Protection Manual (SPM) method. Computational results indicate that for a range of simulated hurricane parameters, a wide range of spatial and temporal characteristics, for the significant wave height, exists. The location of hurricane landfall results in a significant difference in the wave height at specified points. Additionally, the variation in central pressures, radius sizes and forward speeds leads to elevated surge levels that contribute to wave generation. Furthermore, the time evolution trend of the generation of the significant wave height is found to be unique to its geographic location. In the development of parameterized maximum significant wave height models, the dimensionless best-fit equation approach indicates how strongly the various forms of the equivalent fetch and the bathymetric depth ultimately determines the predicted maximum significant wave height. This approach yielded RMSE that range between 0.52m - 0.68m. Additionally, the accuracy for this approach varied greatly as the highest scatter index was 0.28 for the open-coast points and 0.37 for the bay points. The SPM approach gives an indication of how strongly the functional form of the equivalent fetch determines the predicted maximum significant wave height. When compared to the dimensionless approach, this method produced a lower RMSE of 0.37m and a greater accuracy for the scatter index of 0.23 for the open-coast points and 0.31 for the bay points. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/148279
Numerical Prediction of Hurricane Movement with the Equivalent-barotropic Model
Author: Gene E. BirchfieldPublisher:
ISBN:
Category : Hurricanes
Languages : en
Pages : 68
Book Description
Numerical Prediction of Hurricane Movement with the Use of a Fine Grid
Author: Gene E. BirchfieldPublisher:
ISBN:
Category : Hurricanes
Languages : en
Pages : 40
Book Description
Hurricane Isabel: A Numerical Model Study of Storm Surge Along the East Coast of the United States
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 14
Book Description
On the 6th of September 2003, a westward moving tropical wave in the far eastern Atlantic began to organize and evolve into tropical storm Isabel. By September 7, Isabel had become a full-fledged hurricane and began to move west-northwest. Isabel continued her northwest track through the 8th and 9th, intensifying into a major hurricane. By September 11th, Isabel had become a Category 5 hurricane on the Saffir-Simpson Scale, and maintained this high level of intensity through September 15th. During this time Isabel took a more westward track, until it began to turn northwestward on the 15th. On the 16th, Isabel began to weaken and headed in a north-northwestward direction toward the North Carolina coast. On September 18th, at approximately 17Z, Isabel made landfall near Drum Point, North Carolina as a Category 2 hurricane with sustained winds near 100 mph and a minimum central pressure of 957 mb. Hurricane forecast winds extended 115 miles from the center of its eye with tropical storm force winds extending 345 miles out from the center. By 1500Z (11 am EDT) on September 19th, Isabel was downgraded to a tropical depression located northeast of Cleveland, Ohio and was moving rapidly to the north. Numerical ocean models can be used to both forecast and hindcast storm surge events. These models use the wind and pressure forcing associated with a hurricane or tropical storm to associated storm surge.
Numerical Model for Prediction of Hurricane Formation [with List of References
Author: Further Studies of Barotropic Numerical Prediction of Hurricane Movement with the Use of a Fine Grid
Author: Gene E. BirchfieldPublisher:
ISBN:
Category : Atmospheric pressure
Languages : en
Pages : 34
Book Description
A comparison between geostrophic and nongeostrophic numerical forecasts of hurricane movement with the barotropic steering model
Author: Akira KasaharaPublisher:
ISBN:
Category : Nature
Languages : en
Pages : 38
Book Description