Welcome to TAKEDA Masahiko's HOMEPAGE
- Geomagnetic solar quiet daily variation field (Sq)
- Ionospheric dynamo
- UT, seasonal and day-to-day variation
- Effects of the disturbance field
- Ionospheric conductivity
- Internal or induced field
TAKEDA Masahiko@Data Analysis Center
for Geomagnetism and Space Magnetism,
Graduate School of Science,
Create: Dec. 23, 1998.
Latest update: Dec. 17, 2012.