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

Modelling the oxygen production with photosynthesis

Yuanyi Li, modified 2 Years ago.

Modelling the oxygen production with photosynthesis

I am modelling the algae bloom and dissolved oxygen in a lake. I searched though the PLCT but failed to find the way to link the algae growth and the oxygen production.  Could any one told me how to achieve this and point the substance and related processes should be ticked on?

Arjen Markus, modified 2 Years ago.

RE: Modelling the oxygen production with photosynthesis

Jedi Knight Posts: 223 Join Date: 1/26/11 Recent Posts

If you use the BLOOM approach, then selecting dissolved oxygen as a model substance and selecting the process "BLOOM II alglae module" is essentially enough to turn on primary production by algae and the production of dissolved oxygen as a result. Several other processes are required to really turn it on, but if you inspect the list of fluxes (the way a process influences a substance), you should see "uptake of carbon by algae growth (dPrProdOxy)". This flux is used to calculate how much organic carbon is formed but also how much dissolved oxygen is produced, as these two go hand in hand.