Data Catalog

Data sources are provided to HydroMT in one or more user-definfed data catalog (yaml) files or from pre-defined data catalogs. These data catalogs contain required information on the different data sources so that HydroMT can process them for the different models. There are three ways for the user to select which data catalog to use:

• There are several pre-defined data catalog Amongst other, these include the deltares_data data catalog for Deltares users which requires access to the Deltares P-drive. More pre-defined data catalogs will be added in the future.

• Furthermore, the user can prepare its own yaml libary (or libraries) (see HydroMT documentation to check the guidelines). These user libraries can be added either in the command line using the -d option and path/to/yaml or in the yml file with the data_libs option in the global section (see example above).

• Finally, if no catalog is provided, HydroMT will use the data stored in the hydromt-artifacts which contains an extract of global data for a small region around the Piave river in Northern Italy.

The HydroMT core documentation provides comprehensive information on how to manage and extend data catalogs. You can explore the guides below for detailed instructions and examples.