TIDs in ionospheric F-region at Cusp latitude: Observations and numerical simulation

Travelling Ionospheric Disturbances (TIDs) at Cusp latitude observed by EISCAT-Svalbard radar (ESR) were presented in this paper. Several representative cases were reported in detail, including a case of TIDs appearing at a broad altitude range (up to the topside of ionospheric F-region). Height profiles of wave number k were obtained in F-region using Maximum Entropy spectral Estimation (MESE) method when TIDs were monitored by various radar beams simultaneously. Simulation results indicated that TIDs observed at cusp latitude could be reasonable reproduced by carefully selecting AGW inputs.