Passive Optics activities in Japan
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1 Passive Optics Workshop, NCAR, April 8, 2004 Passive Optics activities in Japan Mamoru Ishii 1, Minoru Kubota 1, Kazuyo Sakanoi 1, Kazuo Shiokawa 2, Makoto Taguchi 3, Takeshi Sakanoi 4, Yukihiro Takahashi 4, Shoichi Okano 4,Yoshitaka Kiyama 5, Takuji Nakamura 6, Akinori Saito 6 1 NICT, 2 Nagoya Univ., 3 NIPR, 4 Tohoku Univ., 5 Niigata Univ., 6 Kyoto Univ.
2 Instrument for passive optical measurements Institute FPI ASI Photometer Others Tohoku Univ. Zao(D) Campaign base (for obs. Sprite) Campaign base(multi-anode array x 2) Image-intensifies CCD Camera (2 sets), Watec CCD Camera (up to 40 sets collaborating with high schools) NIPR Syowa(D) Syowa(ASI, ASC,ATV) South Pole (ASI) Longyearbyen (Aurora Spectrograph Meridian Spectral Image) NICT Eagle(D) PFRR(S) PFRR(ASI x 2) PFRR (Aurora Web Camera) Niigata Univ. Campaign base( Scanning) Campaign Base(Filtered CCD, monochiromatic CCD) Nagoya Univ. Shigaraki (D =>S) Shigaraki Sata Rikubetu Darwin Koto Tabang Shigaraki(Tilt) Sata (Temp) Rikubetsu(Tilt x 2, Temp x 1) Koto Tabang (Temp) Shigaraki(SATI: Spectral Airglow Temperature Imager) Kyoto Univ. Indonesia Colorado Misato D: Doppler Imaging, S: Steerable Narrow Field of FPI
3 Fabry-Perot Doppler Imaging System (Tohoku Univ.) 140 E 142 E Zao Obs. 38 E 37 E
4 Research Zao FPDIS (OI 558 nm) 1996 Oct. 11 Relationship between neutral mean flow and atmospheric gravity waves in the mid-latitude E-region. Syowa FPDIS (OI 630 nm) 1996 May 13 Relationship between neutral winds and ion drifts in the auroral F-region. Neutral winds were suggested to be driven by ion drag force [Sakanoi et al., 2002, JGR].
5 NICT-FPI (National Institute of Information and Communications Technology) FOV=1.4deg FOV=140deg Etalon: =116mm d=20.49mm dichroic mirror CCD1 CCD2 filters: 557.7nm/ 630.0nm
6 NICT All-Sky Imagers at Poker Flat, Alaska : ASI FOV for 100 km altitude. : FOV for 250 km altitude. Observatory: Poker Flat Research Range (PFRR) 65.1 o N, o W, MLAT65.5 o Observation Periods: Oct., 2000 ~ Apr., 2001 Nov., 2001 ~ Mar., 2002 Sept., 2002 ~ Mar., 2003 Sept., 2003 ~ Mar., 2004 Wavelength: CRL-ASIs can observe up to ten kinds of aurora and airglow emissions.
7 Examples of Observational Results Evening Co-rotating Patch aurora False color all-sky images made by OI nm and nm images taken every 20 minutes. Patch-shaped auroras spread over the sky can be seen. Motion of the patches was very slow. In particular, they maintained their shapes and positions from 03:20 to 04:00 UT. Kubota et al., GRL., Gravity Wave Propagations
8 STE Lab. Nagoya Univ.
9 Optical Auroral Observation by NIPR Arctic Regions Aurora Spectrograph (ASG) Meridian Spectral Image FOV 180, nm Period: 2000 PI: Takehiko Aso Longyearbyen (16.3E, 78.2N) Slit Grism 730nm CCD 420nm 100 mm
10 Antarctic Regions Fabry-Perot Imager (FPI) Wide-Angle (150 ) Image OI 557.7, OI Period: 2001 PI: Makoto Taguchi (taguchi@nipr.ac.jp) Syowa (39.58E, 69.00S) All-Sky Imager (ASI) All-Sky Monochromatic Image OI 557.7, OI 630.0, N , NaD 589, H, OH(8-3) Period: 1998 PI: Makoto Taguchi (taguchi@nipr.ac.jp) South Pole ( -, 90.0S, 2835m) All-Sky Imager (ASI) All-Sky Monochromatic Image OI 557.7, OI 630.0, N , NaD 589, H, OH(8-3) Period: 1997 PI: Masaki Ejiri (ejiri@nipr.ac.jp) WWW:polaris.isc.nipr.ac.jp/~asi-dp/ OI nm OI nm All-Sky Camera (ASC) All-Sky Panchromatic Image Period: (Film) (Digital) PI: Makoto Taguchi (taguchi@nipr.ac.jp) All-Sky TV Camera (ATV) All-Sky Panchromatic Video Period: 1986 PI: Natsuo Sato (nsato@nipr.ac.jp) N nm
11 Airglow Imaging Observation by RISH, Kyoto Univ. (former RASC) RISH:Research Institute for Sustainable Humanosphere Misato, Japan (34.14N,135.41E) All-sky, OH, OI(557.7), Na Dual-site observation with Shigaraki(34.85N,136.10E) Yucca Ridge, CO, USA (40.7N, 104.9W) All-sky, OH Dual-site observation with Platteville(40.2N,104.7W) Tanjungsari, West Jawa, Indonesia(6.9S, 107.9E) Wide Field, OH Gravity waves over deep convection PI: Takuji Nakamura Univ.
12 Dual site airglow imaging observation Estimated height of airglow image structure (nighttime average) OH OI Height[km] Aug Sep Oct Nov Dec Jan Feb Mar Apr May Misato Shigaraki, (Kyoto U. Nagoya U.)
13 FRONT-3 campaign F-region Radio and Optical measurement of Nighttime TID May-June 2003 Observations of Medium-Scale Traveling Ionospheric Disturbances in the geomagnetically conjugate regions of Japan and Australia by Nagoya University, Kyoto University, NICT and IPS. Japan Imager: Rikubetsu, Shigaraki, Misato, Nishiharima, Sata Radio observation: GPS array, MU radar, Ionosondes Australia Imager: Darwin, Renner Springs Radio observation: GPS scintillation (Renner Springs)
![, 2004] 3-m scale field-aligned irregularties](/docs-images/95/123100662/images/14-3.jpg "observed by the MU radar at Shigaraki Total")
14 Rikubetsu Nishi-Harima Sata Shigaraki Misato Dip Equator Darwin Renner Springs 630nm-band airglow at Shigaraki and Renner Springs [Shiokawa et al., 2004] 3-m scale field-aligned irregularties observed by the MU radar at Shigaraki Total Electron Content observed by GEONET
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