Japan Geoscience Union Meeting 2022

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[E] Oral

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

[P-EM12] Study of coupling processes in solar-terrestrial system

Thu. May 26, 2022 10:45 AM - 12:15 PM 302 (International Conference Hall, Makuhari Messe)

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

12:00 PM - 12:15 PM

[PEM12-11] Validation of FORMOSAT-7/COSMIC-2 radio occultation by NICT-SEALION observations

*Shih-Ping Chen1, Charles Lin1 (1.National Cheng-Kung University, Taiwan)

Keywords:FORMOSAT-7/COSMIC-2, Ionosonde, Scintillation

This study presents a cross-comparison between the radio occultation (RO) profiles probed by FORMOSAT-7/COSMIC-2 (F7C2) and the ionospheric peak parameters observed by SEALION (SouthEast Asia Low-latitude Ionospheric Network) of NICT, Japan. By comparing F7C2 ion profiles to the collocated ionosonde observations, the result shows that the NmF2 of the F7C2 performs better than hmF2 in the southeast Asia and Japan sector. The discrepancies in hmF2 have obvious local time and latitude dependent. On the other hand, the SEALION ROTI and S4-index observations in low-latitudes are also compared to the F7C2 RO amplitude and phase fluctuations and collocated all-sky-imagers. The conjunction observations of the equatorial plasma bubbles by L-band scintillations and airglow emission in the Asia sector will be further discussed.