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

Space varying wind and pressure

NB
Nophi Biton, modified 7 Years ago.

Space varying wind and pressure

Padawan Posts: 38 Join Date: 8/1/13 Recent Posts
Hello everyone,

I am trying to extract a storm track data from Japan Meteorological Agency (JMA) to be used as a space varying wind and pressure for my hydrodynamic simulation. The best track data given in there website has following attributes Latitude and Longitude of the center, central pressure, max. sustained wind speed, Direction of the longest radius, radius of wind, etc. There seems no discussion in the D-Flow manual on how to extract and structure this kind of data for D-flow to read it such that the latitude and longitude is considered.

Also can anyone suggest where can I find a storm track data from other agencies (such as JMA) that can be readily used for D-flow? I understand that I should write a program to extract the required data from the meteo file. But my problem is what grid should I use (equidistant, curvi, spiderweb) and is it only the maximum sustained data that I need to define? does this depend on the computational grid I defined?

Thanks

Nophi
MV
Mercy Varghese, modified 7 Years ago.

RE: Space varying wind and pressure

Youngling Posts: 17 Join Date: 8/6/13 Recent Posts
Hi Nophi!

Try checking out JTWC best track data. Install Delft Dashboard which can be used to get spiderweb files once you can input the data from JTWC.
check Open Earth website for dashboard setup files. Best part is it is free. Also remember to have a internet connection whenever you use Dashboard.

-Mercy