@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:P07::L4VM90DM" ; dc:date "2021-09-20 14:41:46.0" ; dc:identifier "SDN:P07::L4VM90DM" ; pav:authoredOn "2021-09-20 14:41:46.0" ; pav:hasCurrentVersion ; pav:version "1" ; void:inDataset ; owl:deprecated "false" ; owl:sameAs , ; owl:versionInfo "1" ; skos:altLabel "" ; skos:definition "A velocity is a vector quantity. \"Eastward\" indicates a vector component which is positive when directed eastward (negative westward). Friction velocity is a reference wind velocity derived from the relationship between air density and downward stress and is usually applied at a level close to the surface where stress is assumed to independent of height and approximately proportional to the square of mean velocity."@en ; skos:notation "SDN:P07::L4VM90DM" ; skos:note "accepted"@en ; skos:prefLabel "eastward_friction_velocity_in_air"@en ; skos:related .