Joint imaging riometer-incoherent scatter radar observations: a four-dimensional perspective on energetic particle input to the auroral mesosphere

Details Joint imaging riometer-incoherent scatter radar observations: a four-dimensional perspective on energetic particle input to the auroral mesosphere Joint imaging riometer-incoherent scatter radar observations: a four-dimensional perspective on energetic particle input to the auroral mesosphere

Sep 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997adspr..20.1165c&link_type=abstract

Advances in Space Research, Volume 20, Issue 6, p. 1165-1168.

Computer Science

1

Scientific paper

The application of the cosmic noise absorption technique using riometers has markedly improved in recent years with the introduction of systems with multiple narrow beams (`imaging' riometers). One such instrument, using 49 beams, has been operating at Kilpisjärvi, Finland, since September 1994. The beam pattern encompasses the location of the EISCAT incoherent scatter radar facility, offering prospects for studies using simultaneous joint observations. The radar can monitor the height and time variation of electron density in the D-region while the imaging riometer data provide the horizontal distribution of energetic charged particle precipitation. The latter is essential in order to correctly identify whether variations in the radar measurements are truly temporal, or actually spatially-confined structures moving through the radar beam. We present examples of such joint observations, and discuss the advantages of this approach compared with the capabilities of the two individual techniques alone.

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