TERMIUM Plus®

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EQUATORIAL ANOMALY [2 records]

Record 1 2011-04-18

English

Subject field(s)
  • Atmospheric Physics
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.

French

Domaine(s)
  • Physique de l'atmosphère
OBS

Une des lois de l'atmosphère.

Spanish

Save record 1

Record 2 1997-11-11

English

Subject field(s)
  • Chemistry
  • Analytical Chemistry
  • General Scientific and Technical Vocabulary
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.

French

Domaine(s)
  • Chimie
  • Chimie analytique
  • Vocabulaire technique et scientifique général

Spanish

Campo(s) temático(s)
  • Química
  • Química analítica
  • Vocabulario técnico y científico general
Save record 2

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