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VHF Radio Observations for Imaging Sporadic-E Layer / Plasma Bubbles - Active Data Archive

VHF-Es-EPB ProjectSite LocationsObservation SystemHow to Interpret VHF-Es dataHow to Interpret GPS-TEC ROTIPublications
Links to daughter projects:Observations of ILS Localizer SignalObservations of AIS SignalsHF Doppler Project
NICT Ionosonde foEs
NICT Ionosonde foEs
NICT Ionosonde foEs
Observations of Sporadic E - Es
If you click a part of the spectrograms below, maps of GPS-TEC ROTI during the corresponding 1 hour period will appear (every 5 min). A movie of the ROTI data is also available.   6-days Prediction of Toropospheric Duct
Sarobetsu, Hokkaido
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Sugadaira, Nagano
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Oarai, Ibaraki
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Chofu, Tokyo
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Kure, Hiroshima
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Onna-North, Okinawa
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Sendai, Miyagi
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Kyoto, Kyoto
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Kirishima, Kagoshima
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Observations of Equatorial Plasma Bubble - EPBIonospheric Observations over Thailand (KMITL)
Onna-South, Okinawa
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Tainan, Taiwan
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Bangkok, Thailand
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