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- Determine which datasets are used and within which limit (zmin and zmax). This feature is especially handy when a different data set is used for the sea part and the land part. An offset can be used in order to shift the bathmetry. Diffusion is used for defining depth values for missing data (NaNs).
- If in quick mode ‘make bathymetry’ is used the active bathymetry in Dashboard (default GEBCO ’08) is applied
- Other bathymetry sets can be important via the Toolbox ‘Bathmetry’. More about this toolbox can be found in @.
- The function will now loop over the different dataset
- The bathymetry is first loaded.
- This can be downloaded from the OpenDAP server
- Or from your local directory file if the data needed is used in a previous set-up.
- Bathymetries are applied in the order defined.
- Interpolation from the original grid to the model grid is carried out with a linear interpolation. Only values (that are not NaN) are taken into account
- The bathymetry is first loaded.
- If an internal diffusion is applied the remaining non existing bed levels are filled in based on the mean bed level and after that a smoothing function is applied
- If a model offset is applied the whole bathymetry is shifted. An offset of 1 meter means the bed level will be 1 meter lower than originally.
- The bathymetry created is directly visible in Delft Dashboard.
Figure: The bathymetry created for New Zealand. The colors in Delft Dashboard are updated based on the value defined to the specific grid cell.
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