@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix esado: <https://data.esa.int/esado/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .

<https://earth.esa.int/concept/ccf4c4fa-e698-5c16-a074-f958ccabce5e>
  skos:notation "ER2"@en ;
  skos:prefLabel "ERS-2"@en ;
  a skos:Concept ;
  skos:broader <https://earth.esa.int/concept/6caeef70-6328-53c7-a13f-b0da23076e9f> .

<https://earth.esa.int/concept/41660a0e-b024-5f96-bac7-03d20444800b>
  skos:notation "ER1"@en ;
  skos:prefLabel "ERS-1"@en ;
  a skos:Concept ;
  skos:broader <https://earth.esa.int/concept/6caeef70-6328-53c7-a13f-b0da23076e9f> .

esado:
  rdfs:label "ESA Data Ontology"@en ;
  skos:prefLabel "ESA Data Ontology"@en ;
  a skos:ConceptScheme, owl:Ontology .

<https://earth.esa.int/concept/c55d6941-023c-514c-a9c4-1693c053f861>
  rdfs:label "Earth Observation Satellite"@en ;
  skos:prefLabel "Earth Observation Satellite"@en ;
  a skos:Concept ;
  skos:narrower <https://earth.esa.int/concept/6caeef70-6328-53c7-a13f-b0da23076e9f> .

<https://gcmd.earthdata.nasa.gov/kms/concept/3b6b4870-ae80-4488-b9fb-f9152037ec59>
  skos:prefLabel "European Remote Sensing Satellite (ERS)"@en ;
  a skos:Concept .

<https://earth.esa.int/concept/6caeef70-6328-53c7-a13f-b0da23076e9f>
  skos:inScheme esado: ;
  skos:exactMatch <https://gcmd.earthdata.nasa.gov/kms/concept/3b6b4870-ae80-4488-b9fb-f9152037ec59> ;
  skos:note "1.2"@en ;
  skos:prefLabel "ERS"@en ;
  skos:narrower <https://earth.esa.int/concept/41660a0e-b024-5f96-bac7-03d20444800b>, <https://earth.esa.int/concept/ccf4c4fa-e698-5c16-a074-f958ccabce5e> ;
  skos:notation "ER1,ER2"@en ;
  a skos:Concept ;
  rdfs:seeAlso <https://earth.esa.int/web/guest/missions/esa-operational-eo-missions/ers> ;
  skos:broader <https://earth.esa.int/concept/c55d6941-023c-514c-a9c4-1693c053f861> ;
  skos:definition "ESA's two European Remote Sensing (ERS) satellites, ERS-1 and ERS-2, were launched into the same orbit in 1991 and 1995 respectively. Their payloads included a synthetic aperture imaging radar, radar altimeter and instruments to measure ocean surface temperature and wind fields. ERS-2 added an additional sensor for atmospheric ozone monitoring. The two satellites acquired a combined data set extending over two decades."@en ;
  skos:altLabel "ERS Earth Resource Satellite"@en ;
  rdfs:label "ERS missions"@en .