I´m working on a project proposal that will develop a historical event-based model and a historical SDI (snapshot model). I´m wondering which metadata standard suits better for both. The study case is in the Iberian Peninsula.
In my opinion, you should use ISO 19139 that derived from ISO 19115. The implementation of INSPIRE dataset and service metadata was based on ISO/TS 19139:2007: https://inspire.ec.europa.eu/id/document/tg/metadata-iso19139https://inspire.ec.europa.eu/id/document/tg/metadata-iso19139