The WIS2 topic hierarchy is currently in development. wis2box implementation of the topic hierarchies will change, based on ratifications/updates of the topic hierarchies in WMO technical regulations and publications.
wis2box implements the WIS2 topic hierarchies, which are designed to efficiently categorize and classify data.
To publish data and metadata to WIS2, the topic hierarchy requires a valid centre
centre-id), which is specified by the member endorsed by the
permananent representative (PR) of the country.