Andenes MF Radar

 Electromagnetic pulses are vertically transmitted into the ionosphere via a transmitting antenna. These pulses are partially reflected at irregularities of the refractive index and are received by three spatially separated receiving antennas. From the three received data series the mesospheric wind field is derived by a correlation method (Spaced Antenna Method, SA) after elimination of disturbances caused by foreign radio transmitters.

Technical Parameters

Frequency

1.98 MHz

Peak power

40 kW

Pulse width

27 µs

Pulse form

Gauss

Height resolution

4 km

 

 

Antenna configuration

  • Transmitting antenna: 4 circular polarized half-wave dipoles
  • Receiving antenna: 3 crossed half-wave dipoles, circular polarized
24h Wind field (top: zonal, bottom: meridional)

Observation Data

Based on half hourly wind values for each day the prevailing wind components (zonal and meridional winds, in the figure some examples are shown) and the 12h and 24h tidal components are estimated.

 

Recent signal

Signal power of last hour

Responsible staff