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 WAQ(1) respect to the horizontal surface area of the segment

Helena de Azevedo, modified 6 Days ago.

ERROR in WAQ(1) respect to the horizontal surface area of the segment

Youngling Posts: 3 Join Date: 7/22/19 Recent Posts
Hello everybody, 
I am modelling a 3D hydrodynamic and water quality model to an stratified lake. In this way, I am having some issues when executing WAQ(1) with the following statements: 

"Input parameter  nr:    1 is parameter  nr:    1 with ID  : SURF                
 Input parameter  nr:    2 is parameter  nr:    2 with ID  : bottomdept           Input will be given for all    2611224 segments.
 ERROR: Array of character strings too small.
        Use command-line option -cmax to increase the size!
        Minimum size required:    2611247
 ERROR encountered in processing this block ! Total number of constants        :   22 Total number of parameters       :    2 Total number of functions        :    0 Total number of segment functions:    0 ERROR.
Too many and/or invalid data in block   7 !! Check input file !!"

I already know that the input parameter with extention '.srf' is about the horizontal surface area of the segment, wich refers to the computational volumes. Besides that, '.srf' refers to sigma layer as well. In additional, is important to say that my interest is only about the dissolved oxygen.
 I hope that someone can help me to solve this problem.