- Ionosphere--Observations--Congresses (3)
- Atmosphere, Upper--Polar regions--Observations--Congresses (2)
- Magnetosphere--Observations--Congresses (2)
- Atmosphere, Upper Congresses Periodicals (1)
- Atmosphere, Upper--Polar regions Congresses Periodicals (1)
- Atmospheric physics Congresses Periodicals (1)
- Magnetosphere--Congresses (1)
- Magnetospheric substorms--Congresses (1)
- Polar ionosphere--Congresses (1)
- 海浜生物 (1)