Radar and optical leonids

[摘要] We present joint optical-radar observations of meteors collected near thepeak of the Leonid activity in 2002. We show four examples of jointdetections with a large, phased array L-band radar and with intensifiedvideo cameras. The general characteristic of the radar-detected opticalmeteors is that they show the radar detection below thetermination of the optical meteor. Therefore, at least some radar eventsassociated with meteor activity are neither head echoes nor trail echoes,but probably indicate the formation of "charged clouds" after the visualmeteor is extinguished.

[学科分类] 大气科学