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. 
 

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Sub groups
D-Flow Flexible Mesh
DELWAQ
Cohesive sediments & muddy systems

 

 

Message Boards

Error reading .wnd file for computational grid

CF
Chris Flanary, modified 1 Year ago.

Error reading .wnd file for computational grid

Youngling Posts: 4 Join Date: 10/10/14 Recent Posts

I'm getting an error in my tri-diag file at the initialization of my structure hydro model run that pertains to my *.wnd file and have some confusion about the proper size for the *.wnd file.

I built the *.wnd file according to the manual section A.2.8.1.  The manual states that the wind components are specified at the cell centres (water level points).  My grid has 173x301 grid points (from my .mdf file: MNKmax = 174 302 1), so my file has 301 rows of 173 values for each x_wind, y_wind, and air_pressure.

However, the example test case given by Adri in the following link has the .wnd file quantities specified at the size of M and N max, 1 over the number of grid points.

https://oss.deltares.nl/web/delft3d/general1/-/message_boards/message/783194

 

Which are the correct dimensions to supply the wind and air pressure quantities when using meteo_on_conputational_grid?

Thank you