Accession Number : ADA134071

Title :   Prototype Tidal Data Analysis for Mississippi Sound and Adjacent Areas.

Descriptive Note : Final rept.,


Personal Author(s) : Outlaw,Douglas G

PDF Url : ADA134071

Report Date : Sep 1983

Pagination or Media Count : 189

Abstract : Prototype tidal elevation and current data acquired in Mississippi sound during the spring, summer, and fall 1980 were analyzed as a part of a study to establish existing hydrodynamic conditions and to estimate changes in tidal and wind-driven circulation patterns for proposed dredged material disposal practices. The results of the prototype tidal data analysis will be used for numerical tidal circulation model calibration and verification. The results also provide a characterization of the tidal regime in the study area. Data were included in the analysis from 22 surface elevation stations, three bottom pressure stations in the Gulf, and 21 velocity stations. Conductivity/temperature transect data were collected for 40 stations at intervals of approximately 3 weeks during the data acquisition period. Tidal analysis results show that the diurnal 01 and K1 surface elevation constituents have the largest amplitude in the Mississippi Sound study area, with an amplitude of approximately 0.5 ft. Principal semidiurnal surface elevation tidal constituents were M2 and S2, with amplitudes of 0.13 ft or less. Minimum salinity levels were observed near Lake Borgne in the western part of the Sound.

Descriptors :   *Ocean tides, *Ocean currents, Mexico Gulf, Sounds(Waterways), Louisiana, Mississippi, Alabama, Circulation, Sea level, Elevation, Variations, Harmonic analysis

Subject Categories : Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE