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ANTARCTIC REGIONS
2
CANADA
ELECTROMAGNETIC RADIATION
2
IONOSPHERIC PROPAGATION
(*IONOSPHERE
1
(*MAGNETIC STORMS
1
ABSORPTION
1
ANOMALIES
1
ATTENUATION
1
AURORAE
1
Atmospheric Physics
1
CORRELATION TECHNIQUES
1
ELECTRICAL CONDUCTIVITY
1
ELECTRON DENSITY
1
Geomagnetism
1
HIGH ALTITUDE
1
IONOSPHERE)
1
IONOSPHERIC DISTURBANCES
1
MAGNETIC FIELDS
1
MAGNETOHYDRODYNAMICS)
1
MICROPULSATIONS
1
SURFACE PROPERTIES
1
THEORY
1
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