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

Calculating Number of active grid cells

Bilal Ahmed, modified 2 Years ago.

Calculating Number of active grid cells

Youngling Posts: 7 Join Date: 2/27/15 Recent Posts
Hi All

I want to calculate the number of active grid cells in my model. For grids formed on simple rectangular areas, it is simple as just have to have the number of m and n points and the get number of grid cells by multiplying (m-1) and (n-1). However, for slightly complicated shaped areas like L or T Shaped (like when you have a river with a tributary, and both are included in the model) geometries, it is not the case. Also, if we have dry cells (i.e., not included in the calculation), how or where can we get the number of active (non-dry) grid cells of a model.

I am sure nobody will come up with the opening of ‘Visualization area’ or ‘RFGRID’ and counting the cells using mouse cursor.emoticon

Good Day