TERMIUM Plus®

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SPREAD F [1 record]

Record 1 2004-06-23

English

Subject field(s)
  • Atmospheric Physics
  • Radio Waves
  • Remote Sensing
DEF

Multiple echoes which are at times obtained during a radio sounding of the F region of the ionosphere, especially in equatorial and high latitudes; thus the radio waves appear to be reflected from a range of altitudes.

PHR

Equatorial spread F.

Key term(s)
  • spread-F

French

Domaine(s)
  • Physique de l'atmosphère
  • Ondes radioélectriques
  • Télédétection
DEF

Échos multiples que l'on obtient par moments dans les sondages radio de la région F de l'ionosphère, spécialement aux latitudes équatoriales et aux hautes latitudes; les ondes radio paraissent ainsi être réfléchies à diverses altitudes.

Spanish

Campo(s) temático(s)
  • Física de la atmósfera
  • Ondas radioeléctricas
  • Teledetección
DEF

Multiplicidad de ecos que aparecen a veces en sondeos de la región F de la ionosfera, particularmente en latitudes altas y ecuatoriales; la reflexión de las ondas de radio parece, pues, provenir de una gama de alturas.

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