Accession Number : ADA294010

Title :   ADCIRC: An Advanced Three-Dimensional Circulation Model for Shelves, Coasts, and Estuaries. Report 6. Development of a Tidal Constituent Database for the Eastern North Pacific.

Descriptive Note : Technical rept.,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS

Personal Author(s) : Hench, J. L. ; Luettich, R. A., Jr. ; Westerink, J. J. ; Scheffner, N. W.

PDF Url : ADA294010

Report Date : DEC 1994

Pagination or Media Count : 70

Abstract : This report describes the application of ADCIRC-2DDI, a two-dimensional depth-averaged barotropic hydrodynamic model, to the eastern North Pacific in order to develop a tidal constituent database. Issues that are emphasized in the development of the Eastern North Pacific Tidal (ENPACT) model include the specification of a geometrically and hydrodynamically simple open boundary, the use of large domains, and the advantages of using a graded finite element grid to selectively resolve flow features of interest. The ENPACT model is coupled to a finite element global ocean model at the open boundary and forced with five diurnal and semidiurnal astronomical tidal constituents (K1, O1, M2, S2, and N2). Tidal potential forcing is applied to the interior of the domain for the same constituents. The structures of the various tides are examined and the results of the tidal simulations are compared with field data at 72 fixed tidal elevation stations. (AN)

Descriptors :   *OCEAN CURRENTS, *TIDAL CURRENTS, *NORTH PACIFIC OCEAN, DATA BASES, MATHEMATICAL MODELS, ALGORITHMS, COMPUTERIZED SIMULATION, COASTAL REGIONS, TWO DIMENSIONAL, FINITE ELEMENT ANALYSIS, COMPARISON, GRIDS, ACCURACY, COMPUTATIONAL FLUID DYNAMICS, DEPTH, BOUNDARIES, OCEANOGRAPHIC DATA, BATHYMETRY, HYDRODYNAMIC CODES, ELEVATION, OCEAN MODELS, DREDGED MATERIALS, DIURNAL VARIATIONS, THREE DIMENSIONAL FLOW, ESTUARIES.

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE