Observation and simulation of winds and hydrodynamics in St. Johns and Nassau Rivers

    Authors

    P. Bacopoulos; S. C. Hagen; A. T. Cox; W. R. Dally;S. M. Bratos

    Comments

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    Abbreviated Journal Title

    J. Hydrol.

    Keywords

    Tides; River flows; Storm event; Sea level anomaly; Manning's roughness; MODEL; ESTUARIES; EQUATION; Engineering, Civil; Geosciences, Multidisciplinary; Water Resources

    Abstract

    Water surface elevations and daily flows are measured in the St. Johns and Nassau Rivers (north Florida) and reveal a storm event in mid-May 2009 and a sea level anomaly in June and July 2009. In an effort to reproduce these events, wind and tidally driven hydrodynamics are simulated from the deep ocean into the St. Johns and Nassau Rivers using a shallow water equations model. Calibration adjusts spatially distributed Manning's roughness based on modeled-observed discharge. For validation, the model captures the regular tidal fluctuation as well as the hydrodynamic responses of the storm event in mid-May at the six water level gaging stations. At the flow gaging station, the model captures the ebb tendency of the tide as well as a strong perturbation (flood pulse) that occurs because of the storm event in mid-May. (C) 2011 Elsevier B.V. All rights reserved.

    Journal Title

    Journal of Hydrology

    Volume

    420

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    391

    Last Page

    402

    WOS Identifier

    WOS:000301082000033

    ISSN

    0022-1694

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