Fig. 7
From: Planetary-scale MLT waves diagnosed through multi-station methods: a review
Configurations used for multi-station analyses. Dots (#1–5) in the same color denote meteor radars that were paired for implementing the PDT; crosses (#6–8) in the same color denote meteor radars that were combined for implementing the WT &LS method; and pentagrams (#9) denote surface magnetometers used in implementing the HR &WT method. Configuration #1 is also used for implementing SPT