HR: 12:05h
AN: OS52A-08    [Abstracts]
TI: Influence of Deep Navigational Channels on the Hydrodynamics and Water Quality of Shallow Coastal Basins
AU: * Hearn, C J
EM: clifford_hearn@yahoo.com
AF: ETI professionals at USGS, 600 fourth Street South, St Petersburg, FL 33701, United States
AU: Petersen, O S
EM: osp@dhigroup.com
AF: DHI Water & Environment, Agern Alle 5, Hoersholm, DK 2970, Denmark
AB: Shallow coastal basins throughout the world are increasingly subject to the influences of human population expansions which often bring commercial ocean-going shipping into the basins requiring the dredging of deep navigation channels. There is usually environmental concern as to the effects of such channels on the parameters of the basin which are important to its water quality and ecology. In this paper we review some of the fundamental processes that may be affected by deep navigational channels including tidal or wind driven flow, and density forced currents from salinity gradients. Our approach includes a set of scaling analyses and detailed numerical simulations based on the DHI three dimensional flexible mesh model MIKE-FM. We conclude with a set of tables that review the modeled influence on various types of bays and estuaries of a variety of navigation- channel geometries.
DE: 4235 Estuarine processes (0442)
DE: 4532 General circulation (1218, 1222)
DE: 4534 Hydrodynamic modeling
DE: 4568 Turbulence, diffusion, and mixing processes (4490)
SC: Ocean Sciences [OS]
MN: 2007 Fall Meeting