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



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S1 and S2 outputs

Fabricio Fiengo, modified 5 Years ago.

S1 and S2 outputs

Youngling Posts: 8 Join Date: 10/14/14 Recent Posts

Currently, I have some problems interpreting the outputs of the his output file for the layer S1 and S2. I did a trial with Cd using the low-sorption and slow-desorption options. What I see is:
For example the outputs of total mass Cd in layer S1 (g/m2) describe a nice curve (maximum value ~1600 g/m2), while for Cd in S1 (g) the results are negative. I assume that the last one is:

Cd in S1 is afunction of total mass Cd in layer S1 (g/m2) (grid size 10000m2)

Similarly for the total mass Cd in layer S2 (g/m2) is equal to 0, while for Cd in layer S2, I got positive values (maximum value ~12000 g).
If I understand well Cd in S1 and total mass Cd in layer S1 are related values (the same for S2), then, why do I have these inconsistencies?

Thank you very much in advanced

Best regards


PS. You can find attached the .his file