@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @prefix dcterms: . @prefix grg: . @prefix iop: . @prefix ns0: . @prefix ns1: . @prefix owl: . @prefix pav: . @prefix prov: . @prefix puv: . @prefix qudt: . @prefix rdf: . @prefix rdfs: . @prefix reg: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . sssom:subject_id . sssom:object_id . skos:member . sssom:object_id . rdf:type skos:Concept ; dce:identifier "SDN:L22::TOOL0012" ; dc:date "2009-11-30 11:27:51.0" ; dc:identifier "SDN:L22::TOOL0012" ; pav:authoredOn "2009-11-30 11:27:51.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "Mid-tide bubbler" , "Mid-tide bubbler"@en ; skos:broader , ; skos:definition "The operation of the mid tide bubbler is similar to that of the full tide system, except that the measuring point is mounted at the mid tide height. This means that the pressure point is only immersed for half of the tidal cycle. The reason for this is that when the measuring point is exposed it can be accurately levelled into the geodetic network. Once this is accomplished the full tide pressure points can be fitted to match the tidal curve produced by the mid tide pressure point, thereby connecting them to the geodetic network."@en ; skos:inScheme ; skos:notation "SDN:L22::TOOL0012" ; skos:note "accepted"@en ; skos:prefLabel "Mid-tide bubbler tide gauge"@en ; skos:related . sssom:subject_id . skos:narrower . skos:related . skos:narrower . sssom:subject_id . sssom:object_id . dc:isVersionOf . skos:narrower . skos:narrower . skos:related .