TERMIUM Plus®
From: Translation Bureau
On social media
Consult the Government of Canada’s terminology data bank.
EQUATORIAL ANOMALY [2 records]
Record 1 - internal organization data 2011-04-18
Record 1, English
Record 1, Subject field(s)
- Atmospheric Physics
Record 1, Main entry term, English
- Appleton anomaly
1, record 1, English, Appleton%20anomaly
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- equatorial anomaly 2, record 1, English, equatorial%20anomaly
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
A feature of the equatorial ionosphere is the equatorial, or Appleton, anomaly. This anomaly consists of two maxima in electron density, located approximately 15° north and south of the magnetic equator. The daily equatorial anomaly generally begins to develop near 0900-1000 local time, and reaches its maximum development at 1400-1500 (Huang and Cheng 1991). In periods of solar maximum, however, the anomaly may peak at "2100 local time," and patches of plasma depletions (or "bubbles") form in this postsunset region. Small-scale irregularities form within these patches, becoming a source of intense scintillation effects. 2, record 1, English, - Appleton%20anomaly
Record 1, French
Record 1, Domaine(s)
- Physique de l'atmosphère
Record 1, Main entry term, French
- anomalie d'Appleton
1, record 1, French, anomalie%20d%27Appleton
feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 OBS
Une des lois de l'atmosphère. 2, record 1, French, - anomalie%20d%27Appleton
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 1997-11-11
Record 2, English
Record 2, Subject field(s)
- Chemistry
- Analytical Chemistry
- General Scientific and Technical Vocabulary
Record 2, Main entry term, English
- equatorial ionization anomaly 1, record 2, English, equatorial%20ionization%20anomaly
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 OBS
One of the features of the coupled equatorial ionosphere- thermosphere system produced by the dynamic, electrodynamic and plasma processes in the ionosphere-thermosphere system of the equatorial region. 1, record 2, English, - equatorial%20ionization%20anomaly
Record 2, French
Record 2, Domaine(s)
- Chimie
- Chimie analytique
- Vocabulaire technique et scientifique général
Record 2, Main entry term, French
- anomalie équatoriale d'ionisation
1, record 2, French, anomalie%20%C3%A9quatoriale%20d%27ionisation
feminine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Química
- Química analítica
- Vocabulario técnico y científico general
Record 2, Main entry term, Spanish
- anomalía de la ionización ecuatorial
1, record 2, Spanish, anomal%C3%ADa%20de%20la%20ionizaci%C3%B3n%20ecuatorial
feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
Record 2, Textual support, Spanish
Copyright notice for the TERMIUM Plus® data bank
© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau
Features
GCtranslate (available on the Government of Canada network only)
Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.
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:


