Fig. 6From: Tristatic observation of polar mesosphere winter echoes with the EISCAT VHF radar on 8 January 2014: a case studySame as for Fig. 3 but for the receiver in Kiruna. The X-axis on the left panel and Y-axis on the right panel are the signal time delays in μs relative to the signal which comes to Kiruna from the central pointing altitude (75 km)Back to article page