@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<https://gcmd.earthdata.nasa.gov/kms/concept/954c2f25-3ec8-4774-ba34-fa4289f33f0e>
  skos:definition """Depth at which a Secchi disk, when lowered into the water from the
surface, disappears from view due to turbidity of the water. Used as a
quick assessment of water clarity."""@en ;
  skos:prefLabel "SECCHI DEPTH"@en ;
  skos:inScheme <https://gcmd.earthdata.nasa.gov/kms/concepts/concept_scheme/sciencekeywords> ;
  skos:broader <https://gcmd.earthdata.nasa.gov/kms/concept/457883c4-b30c-4d26-bed8-6c2887ebbc90> ;
  a skos:Concept .

<https://gcmd.earthdata.nasa.gov/kms/concept/457883c4-b30c-4d26-bed8-6c2887ebbc90>
  skos:prefLabel "OCEAN OPTICS"@en ;
  a skos:Concept ;
  skos:narrower <https://gcmd.earthdata.nasa.gov/kms/concept/954c2f25-3ec8-4774-ba34-fa4289f33f0e> .