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PILOT BALLOON SLIDE-RULE [1 record]
Record 1 - internal organization data 2010-03-11
Record 1, English
Record 1, Subject field(s)
- Weather Stations and Meteorological Instruments and Equipment
Record 1, Main entry term, English
- pilot-balloon slide rule
1, record 1, English, pilot%2Dballoon%20slide%20rule
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- pilot balloon slide rule 2, record 1, English, pilot%20balloon%20slide%20rule
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Special slide-rule used for calculating upper-air winds from pilot-balloon observations. 3, record 1, English, - pilot%2Dballoon%20slide%20rule
Record number: 1, Textual support number: 1 CONT
Pilot Balloon slide rules ... were used by meteorologists in the weather services and military units of the United Kingdom to determine the upper wind velocities from an ascending hydrogen or helium filled Pilot Balloon ... The position of the Pilot Balloon is tracked by means of one or two theodolites at one minute intervals. The Pilot Balloon slide rule is used to convert the observed azimuth and elevation readings into wind velocity and direction records. The use of slide rules and plotting boards was abandoned with the wide spread adoption of computers and programs to do the calculations, as well as the decline in the use of optical pilot balloon theodolites. 2, record 1, English, - pilot%2Dballoon%20slide%20rule
Record 1, Key term(s)
- pilot-balloon slide-rule
- pilot balloon slide-rule
- pibal slide-rule
- pibal slide rule
Record 1, French
Record 1, Domaine(s)
- Stations, instruments et équipements météorologiques
Record 1, Main entry term, French
- règle à calcul pour ballon-pilote
1, record 1, French, r%C3%A8gle%20%C3%A0%20calcul%20pour%20ballon%2Dpilote
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Règle à calcul spéciale utilisée pour le calcul des vents en altitude à partir d'observations de ballon-pilote. 1, record 1, French, - r%C3%A8gle%20%C3%A0%20calcul%20pour%20ballon%2Dpilote
Record 1, Spanish
Record 1, Textual support, Spanish
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