The Radio
 Occultation
 Method

Animation of Rotation

Fixed Animation

Fixed Animation In this animation of LEO and GNSS satellites the rotation is viewed from a fixed point in space, the Earth is not rotating and the period is 12 hours.

Rotating Animation

Rotating Animation In this animation of LEO and GNSS satellites the rotation is viewed from an orbiting point in space, the Earth is not rotating and the period is 12 hours.

DMI's logo IEEC's logo Met Office's logo
ECMWF's logo