# Copernicus Data Space Ecosystem STAC — water-quality archive
# Path-as-id: registry/sources/stac/copernicus-dse.yaml resolves stac://copernicus-dse/<collection>

title: "Copernicus DataSpace Ecosystem (Water Quality Archive)"
endpoint: https://stac.dataspace.copernicus.eu/v1
homepage: https://dataspace.copernicus.eu/
operator: ESA / EU Copernicus Programme

aliases:
  - copernicus-dse
  - copernicus-cdse
  - cdse

auth:
  mode: anonymous
  notes: |
    MERIS and Sentinel-3 OLCI water-quality data available via open STAC API.
    No authentication required for catalog queries and most dataset access.

cors_enabled: true
egress_cost: free-eu
region: eu-central

# Collections (verified 2026-06-09):
#   MERIS_FR (2002-2012), SENTINEL-3/OLCI (2016-present)
notes: |
  Copernicus STAC API provides open access to MERIS Full Resolution (2002-2012)
  and Sentinel-3 OLCI Level 2 (2016-present) water-quality data. Both support
  Cyanobacteria Index (Wynne & Stumpf 2015) and multi-decadal trend analysis.
  MERIS at 300m resolution, OLCI at 300m (operational continuation with higher
  temporal cadence from 2018-present via Sentinel-3A/B dual constellation).