@prefix envthes: .
@prefix skos: .
@prefix dc: .
@prefix xsd: .
@prefix owl: .
envthes:22226
skos:prefLabel "secchi depth"@en ;
dc:modified "2018-12-18"^^xsd:date ;
skos:note "[controlled by ] Alessandro Oggioni 23.05.2013 , \"[controlled by ] Alessandro Oggioni 23.05.2013"@en ;
a skos:Concept ;
skos:altLabel "secchi"@en ;
skos:exactMatch ;
skos:inScheme envthes: ;
skos:broader envthes:20935 ;
dc:creator "herbert.schentz@umweltbundesamt.at"@en ;
dc:created "2016-03-31"^^xsd:date ;
skos:definition "n. is a measure of water trasparency in oceans and lakes. N. is measured by Secchi disk created in 1865 by Pietro Angelo Secchi. Secchi disk is a circular disk mounted on a pole or line, and the depth at which the pattern on the disk is no longer visible is taken as a measure of the transparency of the water."@en ;
skos:scopeNote "US LTER controlled vocabulary"@en .
envthes:
skos:prefLabel "EnvThes"@en ;
a owl:Ontology, skos:ConceptScheme .
envthes:20935
skos:prefLabel "variable"@en ;
a skos:Concept ;
skos:narrower envthes:22226 .