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Title: Eastcoast 2001, a tidal constituent database for the Western North Atlantic, Gulf of Mexico, and Caribbean Sea
Authors: University of Notre Dame. Department of Civil Engineering and Geological Sciences
University of North Carolina at Chapel Hill. Institute of Marine Sciences
Mukai, A. Y.
Westerink, Joannes J.
Luettich, Richard A. (Richard Albert), 1957-
Mark, David J.
Keywords: ADCIRC
Atlantic Ocean
Caribbean Sea
Eastcoast 1991
Eastcoast 1995
Eastcoast 2001
Gulf of Mexico
Hydrodynamic circulation model
Tidal constituent
Tidal elevation
Publisher: Coastal and Hydraulics Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: ERDC/CHL TR ; 02-24.
Description: Technical report
The Eastcoast 2001 tidal constituent database described in this report was developed by the University of Notre Dame. The work was performed as an activity of the Inlet Modeling System (IMS) Work Unit, Coastal Inlets Research Program (CIRP), of Headquarters, U.S. Army Corps of Engineers (HQUSACE). This IMS research and development product was conducted under contract DACW 42-00-C-0006 with the U.S. Army Research and Development Center (ERDC), Coastal and Hydraulics Laboratory (CHL), Vicksburg, MS. This report describes the development of the Eastcoast 2001 database of computed tidal elevation and velocity constituents within the Western North Atlantic Tidal (WNAT) domain. The WNAT domain encompasses the Western North Atlantic Ocean, Gulf of Mexico, and Caribbean Sea. The computations are based on a strategically designed finite element grid and the coastal hydrodynamic circulation model, ADCIRC. The resulting Eastcoast 2001 database defines the computed elevation and velocity amplitude and phase for the O1, K1, Q1, M2, S2, N2, and K2 tidal constituents. The Eastcoast 2001 database is significantly more accurate than the previous Eastcoast 1995 and Eastcoast 1991 databases based on the following feature improvements: a) a new grid generation technique with better node placement and distribution, b) a significantly greater number of total nodes, c) a more accurate coastal boundary, and d) inclusion of more reliable bathymetric databases. The new grid generation technique is the combination of two a priori mesh criteria a) the wavelength to grid size ratio and b) the topographic length scale criteria. This combination optimally and more accurately places grid nodes in areas where high resolution is needed. Error analysis of computed versus measured elevation amplitude and phase at 101 stations in addition to an assessment of measured data errors globally and locally quantifies the level of reliability of the computed constituents.
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Technical Report

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