@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix cfstdn: <https://vocab.met.no/CFSTDN/> .
@prefix dc: <http://purl.org/dc/terms/> .

<https://vocab.met.no/CFSTDN>
  skos:prefLabel "Climate and Forecast Standard Names"@en ;
  a skos:ConceptScheme ;
  skos:hasTopConcept cfstdn:depth_at_base_of_unfrozen_ground .

cfstdn:depth_at_base_of_unfrozen_ground
  skos:topConceptOf <https://vocab.met.no/CFSTDN> ;
  skos:note "Mapping to be determined"@en ;
  dc:source <http://cfconventions.org/Data/cf-standard-names/78/build/cf-standard-name-table.html> ;
  skos:exactMatch <http://vocab.nerc.ac.uk/collection/P07/current/TG5KHI3E/> ;
  skos:prefLabel "depth_at_base_of_unfrozen_ground"@en ;
  skos:inScheme <https://vocab.met.no/CFSTDN> ;
  skos:definition "The phrase depth_at_base_of_unfrozen_ground is the instantaneous depth of the downward penetration of thaw from the ground surface at a given time. Permafrost is soil or rock that has remained at a temperature at or below zero degrees Celsius throughout the seasonal cycle for two or more consecutive years. The maximum measurable depth_at_base_of_unfrozen_ground value as recorded at the end of a thawing season corresponds to the permafrost_active_layer_thickness."@en ;
  a skos:Concept .