Returns controlled vocabulary options for IHO ocean regions.
Details
Provides ocean and sea names from the International Hydrographic Organisation (IHO) regions dataset, downloaded from https://www.marineregions.org/download_file.php?name=World_Seas_IHO_v3.zip. The complete list is read from an internal data file (IHO_oceans.rds) and includes options such as:
Not relevant
Not reported
Other
All IHO ocean region names (e.g., Arctic Ocean, Atlantic Ocean, Baltic Sea, Mediterranean Sea, ...)
Data source: extdata/IHO_oceans.rds