Rapidly installed temporary gauging for hurricane waves and surge,and application to Hurricane Gustav |
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| Authors: | Andrew B. Kennedy Uriah Gravois Brian Zachry Rick Luettich Tony Whipple Robert Weaver Janelle Reynolds-Fleming Qin J. Chen Roni Avissar |
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| Affiliation: | 1. Department of Civil Engineering and Geological Sciences, University of Notre Dame, Notre Dame, IN 46556, USA;2. Department of Civil and Coastal Engineering, University of Florida, 365 Weil Hall, Gainesville, FL 32611, USA;3. Wind Science and Engineering Research Center, Texas Tech University, 10th and Akron, Lubbock, TX 79409, USA;4. UNC-CH Institute of Marine Sciences, Morehead City, NC. 3431 Arendell St., Morehead City, NC 28557, USA;5. Department of Civil and Environmental Engineering, Louisiana State University, 3418 Patrick F. Taylor Hall, Baton Rouge, LA 70803, USA;6. Rosentiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway Miami, FL 33149-1098, USA |
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| Abstract: | Hurricanes can produce extreme nearshore waves and surge, but permanent gauging stations are often much sparser than is desired. This paper describes the rationale behind and outline for rapidly installed temporary coastal gauges, and presents results during Hurricane Gustav (2008). Within 48 h prior to landfall, twenty self-recording pressure gauges were deployed in depths of 1.4–23 m over more than 700 km of coastline, using helicopters to cover the large distances. Results showed a complex picture that was strongly dependent on location. East of the Mississippi Delta, open coast waves were large, and surge reached 3.8 m NAVD88 in marshes. West of the delta but near landfall, waves and surge were generally smaller as the river levees blocked flow from East to West. West of landfall, both waves and surge were very small and the most prominent feature was a water level drawdown that reached 1.5 m. Wave spectra varied strongly depending both on location and time from landfall. |
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| Keywords: | Hurricanes Storm surge Water waves Wave spectra |
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