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



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RGFGRID Crashes When Merging Irregular Grids - MATLAB Alternative?

Robert Jenkins, modified 1 Year ago.

RGFGRID Crashes When Merging Irregular Grids - MATLAB Alternative?

Youngling Posts: 11 Join Date: 7/28/15 Recent Posts

Hello all,

I am having terrible difficulty merging 2 irregular grids in RGFGRID using the methods described in the manual and webcasts. These grids have nodes & links exactly coinciding in the area where I need them to connect. It appears that the second grid is simply too large for RGFGRID to handle. I am currently getting an error which states "Map Frontend Application has Stopped Working" (RGFGRID

 Are there any openearthtools for MATLAB which can handle the merging? I am able to read both grids fine with "dflowfm.readNET" but I have no method to combine the nodes, the links, and then to write them to an file.


"dflowfm.writeNET" writes the combined nodes but doesn't seem to handle the links as I have tried combine them.