TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
RIOMETRE [1 record]
Record 1 - internal organization data 2011-06-07
Record 1, English
Record 1, Subject field(s)
- Scientific Instruments
- Geophysics
- Weather Stations and Meteorological Instruments and Equipment
Record 1, Main entry term, English
- riometer
1, record 1, English, riometer
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- relative ionospheric opacity meter 2, record 1, English, relative%20ionospheric%20opacity%20meter
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Instrument for measuring the opacity of the ionosphere during the absence of ionospheric disturbances by determining the absorption of electromagnetic energy emitted by an extraterrestrial cosmic radio noise. 3, record 1, English, - riometer
Record number: 1, Textual support number: 1 CONT
Riometers measure the absorption of radio-noise from the stars ('cosmic-noise') in the ionosphere. They usually operate at frequencies between 25Mhz and 50 Mhz where radio-waves are absorbed when there are significant numbers of free electrons in the height region from about 60-110 km. They make continuous observations of the noise-level and observe deceases in noise relative to the quiet-day level, when high-energy electrons and protons precipitate and cause increased ionisation. 4, record 1, English, - riometer
Record number: 1, Textual support number: 1 OBS
From RIO (relative ionospheric opacity) and meter (measuring device). 5, record 1, English, - riometer
Record 1, French
Record 1, Domaine(s)
- Instruments scientifiques
- Géophysique
- Stations, instruments et équipements météorologiques
Record 1, Main entry term, French
- riomètre
1, record 1, French, riom%C3%A8tre
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Instrument de mesure de l'opacité ionosphérique en l'absence de perturbations ionosphériques en déterminant l'absorption de l'énergie électromagnétique émise par les sources radioélectriques cosmiques. 2, record 1, French, - riom%C3%A8tre
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Instrumentos científicos
- Geofísica
- Estaciones, instrumentos y equipos meteorológicos
Record 1, Main entry term, Spanish
- riómetro
1, record 1, Spanish, ri%C3%B3metro
masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- medidor de la opacidad ionosférica relativa 1, record 1, Spanish, medidor%20de%20la%20opacidad%20ionosf%C3%A9rica%20relativa
masculine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Equipo para determinar la opacidad ionosférica en ausencia de perturbaciones ionosféricas, determinando la absorción de la energía electromagnética emitida por el ruido radioeléctrico cósmico extraterrestre. 1, record 1, Spanish, - ri%C3%B3metro
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2025
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
Language Portal of Canada
Access a collection of Canadian resources on all aspects of English and French, including quizzes.
Writing tools
The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.
Glossaries and vocabularies
Access Translation Bureau glossaries and vocabularies.
- Date Modified: