@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 sdo: . @prefix semapv: . @prefix skos: . @prefix sssom: . @prefix void: . @prefix xsd: . rdf:type sdo:DefinedTerm ; sdo:description "An instrument package in common use in the 1970s and 1980s comprising a rod thermistor (for air temperature measurements), a carbon hygristor (for humidity measurements) and an aneroid pressure sensor with a radio data transmitter. The package was attached to a balloon filled with hydrogen or helium and released to measure an atmospheric profile on the ascent and, if fitted with a parachute, the descent. The radio retransmitted LORAN-C signals allowing the balloon to be tracked giving measurements of winds."@en ; sdo:inDefinedTermSet ; sdo:name "VIZ 1223 Radiosonde"@en ; sdo:termCode "SDN:L22::TOOL0619" .