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

setting up wave boundary conditions

Jun Cheng, modified 7 Years ago.

setting up wave boundary conditions

Youngling Posts: 16 Join Date: 7/20/13 Recent Posts
Dear Deltares,
I am Jun Cheng, a Ph.D. student in Department of Geology, University of South Florida. Recently I am trying to set up a boundary for wave modeling in the eastern coast of Gulf of Mexico for beach profile study. The whole open boundary of wave is divided into 6 sections, each of which is considered to be space-uniform, the corresponding wave condition was downloaded from wavewatchiii, and the wavecon file have been created with a format according to the manual A.2.8.1. But when I run the model (in the attachment with the name 'mutiply_boundary.7z'), the result of significant wave height turn out to be all zeros. which means there is something wrong with my files.
Due to the .bcw file is better and new approach to set up the boundary, I also use the same data to build up the boundary trying bcw file. the file is in the attachment with the name 'for_bcw.7z' as well, but somehow, It always end up with error message when I ran this.

Can someone help look into these two cases, and do me a favor figuring out where the problem is?

Thanks so much!

Gabriel Ruiz, modified 7 Years ago.

RE: setting up wave boundary conditions

Padawan Posts: 59 Join Date: 9/30/11 Recent Posts
Hi Jun,

I think you need to establish all your time points in mdw files.
For example, I saw that in your bcw, you have around 32 time steps, these time steps must have their time point in mdw file.
In your mdw file, you have only three time points!

Are you sure of the values of your time steps are right (time column in bwc file)?


Jun Cheng, modified 7 Years ago.

RE: setting up wave boundary conditions (Answer)

Youngling Posts: 16 Join Date: 7/20/13 Recent Posts
Thanks a lot Gabriel! Since the reply message can't attach files, I start a new questions on the post regarding how to set up the wave boundary.