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

RE: Create bathymetry using Quickin

MS
Mathanki Sivapatham, modified 2 Years ago.

Create bathymetry using Quickin

Youngling Posts: 16 Join Date: 1/20/16 Recent Posts
Hello everyone,
I am new to delft 3D and am very much in need for help. I am unable to find the method used to create the depth file. I have the bathymetry in AutoCAD format. I would like to know how i could convert it to a depth file or how i could use the coordinates to create depth file using quick in.
I would be grateful to anyone who could help. Thanks!
RATHNASINHA JAYATHILAKA, modified 2 Years ago.

RE: Create bathymetry using Quickin

Youngling Posts: 11 Join Date: 12/14/14 Recent Posts
Hi Mathanki,

As I know there is no direct way to import bathy data into d3d quickin as Autocad. what you can do is that you can convert Autocad file into .xyz or .txt file using Autocad or another tool. The .xyz sample files will usually contain X and Y coordinates in m in some Cartesian coordinate system such as UTM (with arbitrary offset) or longitude and latitude coordinates in degrees (WGS84).
Once you have .xyz sample file you can follow Delft3d Quickin manual for your task.

Good luck
Ruchira
MS
Mathanki Sivapatham, modified 2 Years ago.

RE: Create bathymetry using Quickin

Youngling Posts: 16 Join Date: 1/20/16 Recent Posts
Thank you Ruchira!
MS
Mathanki Sivapatham, modified 2 Years ago.

RE: Create bathymetry using Quickin

Youngling Posts: 16 Join Date: 1/20/16 Recent Posts
Dear Ruchira,
I checked the user manual for the bathymetry format. But am unable to understand the contents of it. It seems like only the depth have been listed?


And on an unrelated note, to create lanboundary of my area of interest, I extracted the poly line coordinates from autoCAD and converted it to be a .ldb file and when i opened it in Delft3D RGFGRID, nothing shows up. Can you give any reasons as to what might have gone wrong?

Thank you!
Ruchira JAYATHILAKA, modified 2 Years ago.

RE: Create bathymetry using Quickin

Youngling Posts: 11 Join Date: 12/14/14 Recent Posts
Hi,
Pls check the coordinate system you used. it should be the same coordinate system for both .ldb file and .dep/.grd or bathy samples you applied. Normally I use UTM.
Also, you can just import your .ldb into RGFGRID if it is not showing anything then better check your .ldb file whether it has the correct format. (Refer quickin user manual page no 79.)

cheers
MS
Mathanki Sivapatham, modified 2 Years ago.

RE: Create bathymetry using Quickin

Youngling Posts: 16 Join Date: 1/20/16 Recent Posts
Thank you Ruchira!
HL
Hernán Larriva, modified 13 Days ago.

RE: Create bathymetry using Quickin

Youngling Posts: 7 Join Date: 10/21/19 Recent Posts
<p>Hi, do you know how put hydraulic structures?</p>