@prefix cpm: . @prefix dc: . @prefix dcat: . @prefix dce: . @prefix dct: . @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: . rdf:type skos:Concept ; dce:identifier "SDN:S06::S0600107" ; dc:date "2017-12-07 15:19:02.0" ; dc:identifier "SDN:S06::S0600107" ; pav:authoredOn "2017-12-07 15:19:02.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:versionInfo "1" ; skos:altLabel "Hm0" ; skos:broader ; skos:definition "A computationally convenient approximation (square root of the zeroth spectral moment multiplied by 4 or 4 times the wave height standard deviation) to significant wave height. Significant wave height is a statistic computed from wave measurements that correspond to the average height of the highest one third of the waves, where wave height is defined as the vertical distance from a wave trough to the following wave crest."@en ; skos:narrower , , , , , , , , , , ; skos:notation "SDN:S06::S0600107" ; skos:note "accepted"@en ; skos:prefLabel "Spectral significant wave height"@en .