Simulation of Three-Dimensional Hydrodynamics in Long Island Sound: Seasonal Timescale

by Eugene J. Wei, Natl Ocean Service, Rockville, United States,

Document Type: Proceeding Paper

Part of: Estuarine and Coastal Modeling


The Mellor-Blumberg three-dimensional hydrodynamic model, as modified by National Ocean Service (NOS) of National Oceanic and Atmospheric Administration (NOAA) for application to Long Island Sound, New York, is employed to investigate astronomic tide and meteorologically induced circulation over the period May to July 1990. During this period, NOAA conducted an extensive measurement program to further observe vertical current structure (4 RADS-Remote Acoustic Doupler System- locations) and conductivity and temperature (CT) time series (5 locations) at The Battery, New York and throughout Long Island Sound. Conductivity, temperature, and depth (CTD) profiles were also taken in the longitudinal direction. As reported in this proceedings, climatological terms for salinity and temperature are prescribed on the open boundaries to effect simulations over long periods during which CT time series are not available. Of interest here, is to compare the results achieved using climatological boundary conditions versus these obtained from using observed CT forcings during a seasonal period when CT are available.

Subject Headings: Federal government | Three-dimensional models | Hydrodynamics | Islands | Seasonal variations | Temperature effects | Rivers and streams | Temperature measurement | United States | Connecticut | New York

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