Long-term statistical analysis of the ionospheric observation with the MU radar

Tatsuhiro Yokoyama; Masanori Ueno; Mamoru Yamamoto

Presentation information

[E] Poster

P (Space and Planetary Sciences ) » P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM18] Study of coupling processes in solar-terrestrial system

convener:Mamoru Yamamoto(Research Institute for Sustainable Humanosphere, Kyoto University), Yasunobu Ogawa(National Institute of Polar Research), Satonori Nozawa(Institute for Space-Earth Environmental Research, Nagoya University), Akimasa Yoshikawa(Department of Earth and Planetary Sciences, Kyushu University)

[PEM18-P07] Long-term statistical analysis of the ionospheric observation with the MU radar

*Tatsuhiro Yokoyama¹, Masanori Ueno¹, Mamoru Yamamoto¹ (1.Research Institute for Sustainable Humanosphere, Kyoto University)

Keywords:MU radar, Ionosphere, Incoherent scatter observation

An incoherent scatter radar (ISR) is a powerful tool to observe various ionospheric parameters. The ISR enables us to estimate various physical quantities in the ionosphere from the spectrum of the radar backscatters. The MU radar located in Shigaraki, Japan has regularly been operated as the ISR since the beginning of the MU radar operation in 1986. Electron and ion temperatures, ion drift, and echo power are observed and released in a public database. We have conducted a long-term statistical analysis of the IS observation with the MU radar from 1986 to 2019. The results are mostly consistent with the past results and IRI model outputs. The results during the deep solar minimum in the previous solar cycle show a large discrepancy between the observation and IRI model.