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Geophysics. Cosmic physics
4
QC801-809
4
ionosphere
4
Meteorology. Climatology
3
QC851-999
3
ionogram
2
Antarctica
1
Astronomy
1
QB1-991
1
critical frequency
1
deep learning
1
doppler sounding
1
electron density
1
height-time diagram
1
median height-time diagram
1
median value
1
pattern recognition
1
stratosphere
1
sudden stratospheric warming
1
tides
1
travelling ionospheric disturbances
1
weddell sea anomaly
1
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