A bathystrophic storm surge numerical model was verified, using data of historical hurricanes at selected traverses on the Gulf of Mexico and the east coast, by calibrating "coupled" values of wind and bottom stress coefficients in hydrodynamic equations for the numerical computation. These coefficients represented model calibration constants that included more than the physical effects of wind and seabed friction. Surge hydrographs were calculated and compared with observed or recorded surge hydrographs of: (a) Hurricane of 1949 at Galveston and Freeport, Texas; (b) Hurricane Carla at Galveston and Freeport, Texas; (c) Hurricane Audrey at Eugene Island, Louisiana; (d) 'Hurricane Camille at Biloxi, Mississippi; and (e) Hurricane Carol at Narragansett Pier, Rhode Island. Comparisons were made with theoretical results for several hypothetical storm surge problems for which analytical solutions could be obtained. Although reasonable empirical solutions were obtained by combining values of initial rise and of coefficients of bottom friction and wind stress, the significance, variation and interdependence of these parameters could not be determined adequately because of limited historical data. Extrapolation of empirically derived wind stress and bottom friction relationships, as determined from lower windspeeds, to extreme probable maximum conditions associated with the synthetic hurricanes, could not be conclusively verified. Because of the complexity of the problem, data limitations, and the variability of different factors entering the calibration process, correlation for all historical hurricanes at all traverses was difficult to obtain. However, overall evaluation indicates that when the assumptions used in developing the bathystrophic storm surge model are satisfied, the model reproduces theoretical solutions with an acceptable degree of accuracy.


    Access

    Download


    Export, share and cite



    Title :

    Verification Study of a Bathystrophic Storm Surge Model


    Contributors:

    Published in:

    Publication date :

    1975


    Size :

    23243176


    Type of media :

    Report


    Type of material :

    Electronic Resource


    Language :

    English



    Classification :


    Hurricane Gilbert Storm Surge DATA

    Garcia, Andrew W. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 1990

    Free access

    Storm surge events in the Maritimes

    Parks, G. S. / Ketch, L. A. / O'Reilly, C. T. | British Library Conference Proceedings | 1998


    Effect of Afforestation on Storm Surge Propagation - A Mathematical Model Study

    Mahboob-ul-Kabir, M. / Ahmed, M. M. Z. / Azam, M. H. et al. | British Library Conference Proceedings | 2001


    Advanced Estimation of Coastal Storm Surge: Application of Swan+Adcirc in Northeast Florida/Georgia Storm Surge

    Miller, William / Naimaster, Ashley / Bender Christopher et al. | HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2012

    Free access

    Storm surge barrier and marine environment

    Rigo, P. / Rodriguez, S. / Marchal, J. L. J. et al. | British Library Conference Proceedings | 1996