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. 
 

** PLEASE TAG YOUR POST! **

 

 

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

 

 

Message Boards

Delft DashBoard Tide Database

YS
Yabin Sun, modified 3 Years ago.

Delft DashBoard Tide Database

Youngling Posts: 3 Join Date: 10/27/16 Recent Posts
Hi all,

I am getting some errors when initializing tide database:
Initializing Tide Database ...
opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
opendap.dap.DAP2Exception: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
at opendap.dap.DConnect2.openConnection(DConnect2.java:317)
at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
Caused by: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
... 4 more
An error occured while initializing Tide Database toolbox. Toolbox will be made inactive!

Then when I try to generate boundary conditions, Matlab gives me below error message:
Error using nc_varget_java (line 31)
Could not open 'http://opendap.deltares.nl/thredds/dodsC/opendap/deltares/delftdashboard/tidemodels/catalog.html?dataset=varopendap/deltares/delftdashboard/tidemodels/tpxo72.nc' with java backend.
Although I can access the file with an internet explorer through the same link:
http://opendap.deltares.nl/thredds/dodsC/opendap/deltares/delftdashboard/tidemodels/catalog.html?dataset=varopendap/deltares/delftdashboard/tidemodels/tpxo72.nc

Anyone knows how this happens and how to sort it out?
Please enlighten me. Thanks.

Cheers,
Yabin
KN
Kees Nederhoff, modified 3 Years ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 12 Join Date: 3/3/14 Recent Posts
Hi Yabin,

It seems that you have two problems: 1) tide database toolbox and 2) reading netcdf files

First of all, you are using an older version of Delft Dashboard. After you updated the OpenEarthTools you should be able to initialze the 'Tide Database toolbox'.

The second problem seems to be related to the nc toolbox you use (should be OpenEarth toolbox) or the proxy settings. Could you check if the following link works in your Matlab? nc_dump('http://opendap.deltares.nl/thredds/dodsC/opendap/deltares/delftdashboard/tidemodels/tpxo72.nc')

Cheers, Kees
YS
Yabin Sun, modified 3 Years ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 3 Join Date: 10/27/16 Recent Posts
Hi Kees,

Thanks for your help.

I recently updated to the latest OET, and the tide database works perfectly.
I guess my problem was due to the weird internet connection we have here.
Glad that it's solved finally.

Cheers,
Yabin
SB
Sandeep Bomminayuni, modified 3 Months ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 1 Join Date: 7/30/20 Recent Posts
Hi,I've downloaded the Dashboard standalone executable and when I try to run it the below error comes up. Same thing happens when I run 'ddb' through matlab. As per suggestions above I've downloaded latest OET but still no use. Can you please help? Thanks. Initializing Tide Database ...
opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
opendap.dap.DAP2Exception: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:317)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
Caused by: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
    ... 4 more
An error occured while initializing Tide Database toolbox. Toolbox will be made inactive!

RegardsSandeep
YS
Yuvaraj singh, modified 3 Months ago.

RE: Delft DashBoard Tide Database

Jedi Knight Posts: 100 Join Date: 8/3/20 Recent Posts
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AS
Andrew Symonds, modified 3 Months ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 1 Join Date: 8/4/20 Recent Posts
I've also had the same problem as Sandeep. It would be really appreciated if someone could advise how to get it to work again. Many thanks, Andy
JM
John McDowell, modified 3 Months ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 15 Join Date: 9/6/17 Recent Posts
Having the same problem as Andrew & Sandeep. Did anyone discover how to initilise the Tide Database?
ST
SUPRIYA THADI, modified 1 Month ago.

RE: Delft DashBoard Tide Database

Youngling Posts: 3 Join Date: 3/26/20 Recent Posts
I also facing the same problem. Please help.I am not able to input boundary conditions in Delft Dashboard. I am getting the following message.
Error: 
opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
opendap.dap.DAP2Exception: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:317)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:517)
    at opendap.dap.DConnect2.getDDS(DConnect2.java:491)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:212)
    at ucar.nc2.dods.DODSNetcdfFile.<init>(DODSNetcdfFile.java:177)
Caused by: opendap.dap.DAP2Exception: HTTP/1.1 404 Not Found
    at opendap.dap.DConnect2.openConnection(DConnect2.java:272)
    ... 4 more
Error using nc_varget_java (line 31)
Could not open 'http://opendap.deltares.nl/thredds/dodsC/opendap/deltares/delftdashboard/tidemodels/tpxo62.nc' with java backend.

Please let me know how to solve the problem. Thanks in advance.