intro story Coast / Estuary

Coast / Estuary

Coastal systems are among the most dynamic physical systems on earth and are subject to a large variety of forces. The morphodynamic changes occurring to coastlines worldwide are of great interest and importance. These changes occur as a result of the erosion of sediments, its subsequent transport as bed load or suspended load, and eventual deposition. 
Estuaries are partly enclosed water bodies that have an open connection to the coast. Estuaries generally have one or more branching channels, intertidal mudflats and/or salt marshes. Intertidal areas are of high ecological importance and trap sediments (sands, silts, clays and organic matter).
Within the Delft3D modelling package a large variation of coastal and estuarine physical and chemical processes can be simulated. These include waves, tidal propagation, wind- or wave-induced water level setup, flow induced by salinity or temperature gradients, sand and mud transport, water quality and changing bathymetry (morphology). Delft3D can also be used operationally e.g. storm, surge and algal bloom forecasting. 
On this discussion page you can post questions, research discussions or just share your experience about modelling coastal and/or estuarine systems with Delft3D FM. 




Sub groups
D-Flow Flexible Mesh
Cohesive sediments & muddy systems



Message Boards

How bed shear stress affects the results and what paramters are affected?

Amaal Fathy, modified 1 Month ago.

How bed shear stress affects the results and what paramters are affected?

Youngling Posts: 11 Join Date: 3/26/16 Recent Posts
I'm modelling a lake for 1 year, I'm trying to import the bed shear stress file as a segment function (.tau) but the file is too large and takes too long and yet never imported. It seems that it'll never be imported, the question is, how that will affect the results?
The parameters I use in the model are: DO, BOD, COD, Nitrates, Ammonia, Po4, IM, some Heavy metals, phytoplankton and bacteria.