Brown, C. A. Dept. of Oceanography, Texas A&M University, cbrown@ocean.tamu.edu
Jackson, G. A. Dept. of Oceanography, Texas A&M University, jackson@ocean.tamu.edu
Brooks, D. A. Dept. of Oceanography, Texas A&M University, dbrooks@ocean.tamu.edu

 
ROLE OF TIDAL FORCING ON LARVAL TRANSPORT THROUGH A MICROTIDAL INLET ON THE TEXAS COAST
 
For estuarine-dependent species, especially those that spawn offshore and have estuarine nursery areas, advective transport through inlets may be a major factor determining recruitment variability. Shelf-estuarine exchange is complex and dependent upon the interaction of astronomical tides, local wind forcing, freshwater inflow, evaporation, non-tidal forcing in the adjacent coastal ocean, and topographically-induced circulation patterns. For this study, the dynamics were simplified to examine the role of the dominant tidal constituents on larval transport. A three-dimensional finite-element model of hydrodynamics was applied to the Aransas Pass inlet and adjacent Corpus Christi/Aransas Bay system. The influence of bay geometry on the spatial distribution of the amplitude and phase of the dominant tidal constituents within the bay were investigated and compared with harmonic analysis of water elevation data at 8 locations within the bay system. Tidal mixing between different compartments of the bay was examined using Lagrangian particle tracking. The importance of the time and location of particle release on particle transport was investigated.
 
Day: Friday, Feb. 5
Time: 10:45 - 11:00am
Location: Eldorado Hotel
 
Code: CS57FR1045E