WIS2 Global Discovery Catalogue API

The WIS2 Global Discovery Catalogue (GDC) implements the OGC API - Records standard to provide discovery metadata for datasets published across the WMO Information System 2.0 network. The primary hosted instance is operated by the Meteorological Service of Canada (MSC). The API supports free-text search, spatial bounding-box filtering (bbox), temporal filtering (ISO 8601 datetime), and pagination via limit and offset parameters. Records conform to the WMO Core Metadata Profile 2 (WCMP2) standard and are returned in GeoJSON or HTML. WIS2 officially entered operational phase on January 1, 2025.