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A Tsunami Ball Approach to Storm Surge and Inundation : Application to Hurricane Katrina, 2005
Author
Source
International Journal of Geophysics
Issue
Vol. 2009, Issue 2009 (31 Dec. 2009), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2009-05-17
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Abstract EN
Most analyses of storm surge and inundation solve equations of continuity and momentum on fixed finite-difference/finite-element meshes.
I develop a completely new approach that uses a momentum equation to accelerate bits or balls of water over variable depth topography.
The thickness of the water column at any point equals the volume density of balls there.
In addition to being more intuitive than traditional methods, the tsunami ball approach has several advantages.
(a) By tracking water balls of fixed volume, the continuity equation is satisfied automatically and the advection term in the momentum equation becomes unnecessary.
(b) The procedure is meshless in the finite-difference/finite-element sense.
(c) Tsunami balls care little if they find themselves in the ocean or inundating land.
(d) Tsunami ball calculations of storm surge can be done on a laptop computer.
I demonstrate and calibrate the method by simulating storm surge and inundation around New Orleans, Louisiana caused by Hurricane Katrina in 2005 and by comparing model predictions with field observations.
To illustrate the flexibility of the tsunami ball technique, I run two “What If” hurricane scenarios—Katrina over Savannah, Georgia and Katrina over Cape Cod, Massachusetts.
American Psychological Association (APA)
Ward, Steven N.. 2009. A Tsunami Ball Approach to Storm Surge and Inundation : Application to Hurricane Katrina, 2005. International Journal of Geophysics،Vol. 2009, no. 2009, pp.1-13.
https://search.emarefa.net/detail/BIM-463565
Modern Language Association (MLA)
Ward, Steven N.. A Tsunami Ball Approach to Storm Surge and Inundation : Application to Hurricane Katrina, 2005. International Journal of Geophysics No. 2009 (2009), pp.1-13.
https://search.emarefa.net/detail/BIM-463565
American Medical Association (AMA)
Ward, Steven N.. A Tsunami Ball Approach to Storm Surge and Inundation : Application to Hurricane Katrina, 2005. International Journal of Geophysics. 2009. Vol. 2009, no. 2009, pp.1-13.
https://search.emarefa.net/detail/BIM-463565
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-463565