Contribution of the Optical Mesosphere Thermosphere Imagers (OMTIs) to VarSITI

Yuichi OTSUKA; Kazuo SHIOKAWA

Presentation information

International Session (Oral)

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

[P-EM09_29PM2] VarSITI - Variability of the Sun and Its Terrestrial Impact

Tue. Apr 29, 2014 4:15 PM - 4:45 PM 501 (5F)

Convener:*Kazuo Shiokawa(Solar-Terrestrial Environment Laboratory, Nagoya University), Taro Sakao(Institute of Space and Astronautical Science Japan Aerospace Exploration Agency), Toshihiko Hirooka(Department of Earth and Planetary Scinences, Kyushu University), Chair:Shin Suzuki(Solar-Terrestrial Environment Laboratory, Nagoya University), Mitsumu K. Ejiri(National Institute of Polar Research)

4:30 PM - 4:45 PM

[PEM09-44] Contribution of the Optical Mesosphere Thermosphere Imagers (OMTIs) to VarSITI

*Yuichi OTSUKA¹, Kazuo SHIOKAWA¹ (1.Solar-Terrestrial Environment Laboratory, Nagoya University)

Keywords:airglow, ionosphere, thermosphere, mesosphere, gravity wave, traveling ionospheric disturbance

The Optical Mesosphere Thermosphere Imagers (OMTIs) consist of thirteen all-sky cooled-CCD imagers, five Fabry-Perot interferometers (FPIs), three meridian scanning photometers, and four airglow temperature photometers. They measure two-dimensional pattern, Doppler wind, and temperature through airglow emissions from oxygen (wavelength: 557.7 nm) and OH (near infrared band) in the mesopause region (80-100 km) and from oxygen (630.0 nm) in the thermosphere/ionosphere (200-300 km). They are in automatic operation at Australia, Indonesia, Thailand, far-east Russia, Japan, Canada, Hawaii, and Norway. Station information and quick look plots are available at http://stdb2.stelab.nagoya-u.ac.jp/omti/. We show recent results obtained by OMTIs particularly focusing on the penetration of short-period gravity wave from the lower atmosphere to the thermosphere and the ionosphere, which are often recognized as meridum-scale traveling ionospheric disturbances (MSTIDs) in the ionosphere. We also show some results obtained by the multi-point Fabry-Perot interferometers. These observations will contribute the next SCOSTEP program VarSITI, particularly to the ROSMIC Project.