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

error in output of some substances

veli yumruktepe, modified 5 Years ago.

error in output of some substances

Padawan Posts: 42 Join Date: 2/7/12 Recent Posts
Hi all,

I am having problems in retrieving some fluxes in bloom simulations. Basically what I am after is the "production of algae type" and "uptake of carbon"
but in the .lsp file i get these warnings:

"dProdAlg" and "dCUpt" are the active processes.

the warnings i get are

output [dProdAlg ] not located
output [dCUpt ] not located

in the manuals these terms appear in BLOOM
but the rest appear in BLOOM_P

What is the deal here? Any ideas?

Ultimately I am after gc/m3/d production rates, not gc/m2/d "fpptot" output

Anonymous Anonymous, modified 5 Years ago.

RE: error in output of some substances

Jedi Master Posts: 333 Join Date: 7/30/20 Recent Posts
Hi Veli,

It seems you requested dProdAlg and dCUpt as output items. This does not work because those are fluxes. Fluxes are only used internally and not available as output. Some fluxes, however, get copied to an output item to make them available. fPPTot is such an example, summing all the various dProdAlg fluxes.

Having individual dProdAlg fluxes available as output involves some modifications in the code. Fortunately, fluxes are listed in the balance output, so you could generate a balance file (*.prn) to inspect the contribution of those fluxes. Don't forget to uncheck the "Lump processes" option.