Wed. May 29, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM09] Vertical coupling in the atmosphere and Ionosphere

[PEM09-P10] Sub-ionospheric effects of volcano eruptions using VLF/LF standard radio waves

*Kei Maruyama¹, Hiroyo Ohya¹, Fuminori Tsuchiya², Kenro Nozaki⁵, Kozo Yamashita³, Yukihiro Takahashi⁴, Hiroyuki Nakata¹, Toshiaki Takano¹ (1.Chiba University, 2.Tohoku University, 3.Ashikaga University, 4.Hokkaido University, 5.National Institute of Information and Communications Technology)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM09] Vertical coupling in the atmosphere and Ionosphere

[PEM09-P10] Sub-ionospheric effects of volcano eruptions using VLF/LF standard radio waves

*Kei Maruyama¹, Hiroyo Ohya¹, Fuminori Tsuchiya², Kenro Nozaki⁵, Kozo Yamashita³, Yukihiro Takahashi⁴, Hiroyuki Nakata¹, Toshiaki Takano¹ (1.Chiba University, 2.Tohoku University, 3.Ashikaga University, 4.Hokkaido University, 5.National Institute of Information and Communications Technology)

Tue. May 28, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Space Weather and Space Climate

[PEM12-P23] Calculating propagation time of HF radio wave using ray-tracing method and simple comparison with the observation.

*Ryo Nakao¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Kornyanat Hozumi², Takuya Tsugawa², Susumu Saito³, Mamoru Ishii² (1.Graduate School of Engineering, Chiba University, 2.National Institute of imformation and Communications Technology, 3.Electronic Navigation Research Institute )

Tue. May 28, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM12] Space Weather and Space Climate

[PEM12-P23] Calculating propagation time of HF radio wave using ray-tracing method and simple comparison with the observation.

*Ryo Nakao¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Kornyanat Hozumi², Takuya Tsugawa², Susumu Saito³, Mamoru Ishii² (1.Graduate School of Engineering, Chiba University, 2.National Institute of imformation and Communications Technology, 3.Electronic Navigation Research Institute )

Wed. May 29, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] Inner magnetosphere: Recent understanding and new insights

[PEM13-P18] Modulation of the D-region ionosphere by Pc5 waves observed by VLF/LF standard radio waves

*Miyashita Takuya¹, Hiroyo Ohya¹, Fuminori Tsuchiya², Hiroyuki Nakata¹, Toshiaki Takano¹, Kazuo Shiokawa³, Yoshizumi Miyoshi³ (1.Chiba University, 2.Tohoku University, 3.Nagoya University)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM13] Inner magnetosphere: Recent understanding and new insights

[PEM13-P18] Modulation of the D-region ionosphere by Pc5 waves observed by VLF/LF standard radio waves

*Miyashita Takuya¹, Hiroyo Ohya¹, Fuminori Tsuchiya², Hiroyuki Nakata¹, Toshiaki Takano¹, Kazuo Shiokawa³, Yoshizumi Miyoshi³ (1.Chiba University, 2.Tohoku University, 3.Nagoya University)

Wed. May 29, 2019 9:00 AM - 10:30 AM A03 (TOKYO BAY MAKUHARI HALL)

[J] Oral
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM16] Physics and Chemistry in the Atmosphere and Ionosphere

10:15 AM - 10:30 AM

[PEM16-06] Solar flare effects of the D-region ionosphere using daytime tweek atmospherics

*Kodai Yamanobe¹, Hiroyo Ohya², Hiroyuki Nakata², Toshiaki Takano², Kazuo Shiokawa³ (1.Graduate School of Science and Engineering, Chiba University , 2.Graduate School of Science and Engineering, Chiba University, 3.Institute for Space-Earth Environmental Research, Nagoya University)

Wed. May 29, 2019 10:45 AM - 12:15 PM A03 (TOKYO BAY MAKUHARI HALL)

[J] Oral
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM16] Physics and Chemistry in the Atmosphere and Ionosphere

11:45 AM - 12:00 PM

[PEM16-11] Relationship between the magnitude of Sakurajima eruptions and the disturbance of GPS-TEC

*Kiyoto Shoji¹, Hiroyuki Nakata¹, Toshiaki Takano¹, Hiroyo Ohya¹, Takuya Tsugawa², Michi Nishioka² (1.Graduate School of Science and Engineering, Chiba University, 2.National Institute of Information and Communications Technology)

Thu. May 30, 2019 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM16] Physics and Chemistry in the Atmosphere and Ionosphere

[PEM16-P08] Analysis of ionospheric TEC fluctuation by rocket

*Tsuyoshi Takegawa¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Takuya Tsugawa², Michi Nishioka² (1.Graduate School of Integrated Science and Technology, Chiba University, 2.National Institute of Information and Communications Technology)

[PEM16-P09] Examinations of the ionospheric perturbation associated with H-IIA rockets launching

*Junpei Yamazaki¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Keisuke Hosokawa², Ichiro Tomizawa² (1.Graduate School of Engineering, Chiba University, 2.Department of Communication Engineering and Informatics, University of Electro-Communications)

[PEM16-P11] Detection of spread-F echoes in ionograms using machine learning

*Hiroyuki Nakata¹, Yuta Goto², Hiroyo Ohya¹, Toshiaki Takano¹ (1.Graduate School of Engineering, Chiba University, 2.Department of Electrical and Electronics Engineering)

Thu. May 30, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| P (Space and Planetary Sciences )
| P-EM Solar-Terrestrial Sciences, Space Electromagnetism & Space Environment

[P-EM16] Physics and Chemistry in the Atmosphere and Ionosphere

[PEM16-P08] Analysis of ionospheric TEC fluctuation by rocket

*Tsuyoshi Takegawa¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Takuya Tsugawa², Michi Nishioka² (1.Graduate School of Integrated Science and Technology, Chiba University, 2.National Institute of Information and Communications Technology)

[PEM16-P09] Examinations of the ionospheric perturbation associated with H-IIA rockets launching

*Junpei Yamazaki¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Keisuke Hosokawa², Ichiro Tomizawa² (1.Graduate School of Engineering, Chiba University, 2.Department of Communication Engineering and Informatics, University of Electro-Communications)

[PEM16-P11] Detection of spread-F echoes in ionograms using machine learning

*Hiroyuki Nakata¹, Yuta Goto², Hiroyo Ohya¹, Toshiaki Takano¹ (1.Graduate School of Engineering, Chiba University, 2.Department of Electrical and Electronics Engineering)

Tue. May 28, 2019 10:45 AM - 12:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS05] New technologies to monitor thunderstorm and severe weather activities

[MIS05-P03] A method for locating lightning discharges using tweek atmospherics

*Masafumi Kanno¹, Hiroyo Ohya², Kazuo Shiokawa³, Hiroyuki Nakata², Toshiaki Takano² (1.Graduate School of Science and Engineering, Chiba University, 2.Graduate School of Engineering, Chiba University, 3.Institute for Space-Earth Environmental Research, Nagoya University)

Tue. May 28, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[E] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS05] New technologies to monitor thunderstorm and severe weather activities

[MIS05-P03] A method for locating lightning discharges using tweek atmospherics

*Masafumi Kanno¹, Hiroyo Ohya², Kazuo Shiokawa³, Hiroyuki Nakata², Toshiaki Takano² (1.Graduate School of Science and Engineering, Chiba University, 2.Graduate School of Engineering, Chiba University, 3.Institute for Space-Earth Environmental Research, Nagoya University)

Tue. May 28, 2019 3:30 PM - 5:00 PM 101 (1F)

[E] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS05] New technologies to monitor thunderstorm and severe weather activities

4:15 PM - 4:30 PM

[MIS05-10] Study of cloud effects on atmospheric electric field during lightning activities and snowfall using the 95-GHz cloud radar FALCON-I

★Invited Papers

*Hiroyo Ohya¹, Kota Nakamori¹, Masashi Kamogawa², Tomoyuki Suzuki², Toshiaki Takano¹, Kazuomi Morotomi³, Hiroyuki Nakata¹, Kazuo Shiokawa⁴ (1.Graduate School of Engineering, Chiba University, 2.Tokyo Gakugei University, 3.Japan Radio Co. Ltd., 4.Nagoya University)

Wed. May 29, 2019 1:45 PM - 3:15 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS22] Electromagnetic phenomena associated with seismic and volcanic activities

[MIS22-P02] Examination of ionospheric disturbances at different altitudes associated with Tohoku earthquake using HF Doppler sounding

*Natsuki Ono¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Ichiro Tomizawa², Keisuke Hosokawa², Takuya Tsugawa³, Michi Nishioka³ (1.Department of Electrical and Electronic Engineering, Graduate School of Science and Engineering, Chiba University, 2.The University of Electro-Communications, 3.NICT)

Wed. May 29, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

[J] Poster
| M (Multidisciplinary and Interdisciplinary)
| M-IS Intersection

[M-IS22] Electromagnetic phenomena associated with seismic and volcanic activities

[MIS22-P02] Examination of ionospheric disturbances at different altitudes associated with Tohoku earthquake using HF Doppler sounding

*Natsuki Ono¹, Hiroyuki Nakata¹, Hiroyo Ohya¹, Toshiaki Takano¹, Ichiro Tomizawa², Keisuke Hosokawa², Takuya Tsugawa³, Michi Nishioka³ (1.Department of Electrical and Electronic Engineering, Graduate School of Science and Engineering, Chiba University, 2.The University of Electro-Communications, 3.NICT)

Thu. May 30, 2019 10:45 AM - 12:15 PM 202 (2F)

[J] Oral
| M (Multidisciplinary and Interdisciplinary)
| M-TT Technology & Techniques

[M-TT49] Brand-new scope of coupling geophysics being established by infrasound and associated waves

11:45 AM - 12:00 PM

[MTT49-05] Ionospheric disturbances associated with typhoons and a tornado observed by HF doppler sounding

★Invited Papers

*Hiroyuki Nakata¹, Ryuichi Mashiko¹, Hiroyo Ohya¹, Toshiaki Takano¹, Keisuke Hosokawa², Ichiro Tomizawa³, Hiromichi Nagao⁴ (1.Graduate School of Science and Engineering, Chiba University, 2.Graduate School of Communication Engineering and Informatics, the University of Electro-Communications, 3.Center for Space Science and Radio Engineering, the University of Electro-Communications, 4.Earthquake Research Institute, the University of Tokyo. )

Hiroyo Ohya

Speaker, Author, Co-Author

★Invited Papers

★Invited Papers