Simultaneous Observations of Aurora with a Doppler-Radar and Sounding Rockets

• Main Authors: Igarashi, Kiyoshi, Ogawa, Tadahiko, Tsuzurahara, Shigehiko, Shiro, Isao, Ose, Masami, Yamagishi, Hisao
• Language: English
• Published: 1981
• Subjects: Syowa Station; Antarc*; Antarctica; Memoirs of National Institute of Polar Research; Polar Research
• Online Access: https://nipr.repo.nii.ac.jp/record/1147/files/KJ00000011673.pdf

P(論文) A 50MHz auroral doppler-radar was operated at Syowa Station, Antarctica, in 1978 in cooperation with sounding rocket experiments during the International Magnetospheric Study. E-region irregularity-drift was measured by the radar while electric field, electron density fluctuation and other parameters were measured by the rockets. Electric field components perpendicular to the radar wave-vector, which were derived from the doppler shifts of echoes, are compared with in situ electric field measurement to find a qualitative agreement between both results. Sharp peaks due to the two-stream instability were found in echo spectra. The radar echo intensity seems to be dependent on the drift velocity of irregularities. departmental bulletin paper