First draft of resource information types (protocols, vocabularies, metadata schemes) in use in NFDI4Earth (NFDI4Earth Deliverable D3.2.1)

This deliverable contains a detailed description of protocols and metadata schemes which are relevant for the NFDI4Earth. Protocols provide technological interoperability between Earth System Science (ESS) research data infrastructures, and common metadata schemes and vocabularies add semantic interoperability on top. The goal of this deliverable is on the one hand to provide a compact overview of these resource information types; compact information which afterwards shall be represented in the NFDI4Earth Knowledge Hub (KH). On the other hand, the deliverable describes how interoperability between the KH itself and ESS infrastructures can be reached by using established protocols for metadata harvesting and ensuring that the metadata schema of the KH is compatible with widely used vocabularies and schemas.