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Six-year project in the period of 2001-2006 headed by Prof. S. Fukao (RISH*, Kyoto Univ.).

Six-year project in the period of 2001-2006 headed by Prof. S. Fukao (RISH*, Kyoto Univ.). CPEA studies dynamical coupling processes in the equatorial atmosphere from the troposphere to the ionosphere. CPEA conducts various observations in Indonesian equatorial region centered around the EAR.

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Six-year project in the period of 2001-2006 headed by Prof. S. Fukao (RISH*, Kyoto Univ.).

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  1. Six-year project in the period of 2001-2006 headed by Prof. S. Fukao (RISH*, Kyoto Univ.). CPEA studies dynamical coupling processes in the equatorial atmosphere from the troposphere to the ionosphere. CPEA conducts various observations in Indonesian equatorial region centered around the EAR. Priority Areas Research of the Grant-in-Aid for Scientific Research funded by Ministry of Education, Culture, Sports, Science and Technology (MEXT) Coupling Processes in the Equatorial Atmosphere (CPEA) *RISH: Research Institute for Sustainable Humanosphere

  2. Temperature profile Meridional Atmospheric Motions Thermosphere/ Ionosphere Mesosphere Stratosphere Troposphere

  3. Development phase Individual study phase Synthetic study phase 2001 2002 2003 2004 2005 2006 Obs. Campaign I Obs. CampaignII Study of Atmospheric waves (A01, A02, A04) Development of EAR bistatic receiver (A02), and lidar (A05) Study of wave generation mechanism (A03) Study of Thermosphere & Ionosphere disturbance (A06) Study of atmospheric structure/wave and minor constituents (A05) Quantitative understanding of dynamic coupling processes (ALL) Schedule of the CPEA NOW March-May 2004

  4. Equatorial Atmosphere Radar (EAR) (Inaugurated in June 2001) Antenna field (110m in diameter) Location: Koto Tabang, West Sumatra, Indonesia (0.20°S, 100.32°E) 100 kW, 560 Yagi antennas

  5. MU Gadanki dip equator Piura Trivandrum EAR ALTAIR Jicamarca ※EAR: Equatorial Atmosphere Radar (located right at the geographic equator and in the geomagnetic southern hemisphere) VHF Radars in the Low-LatitudeRegion

  6. F-region Field Aligned Irregularity (FAI) Echoes from the EARAltitude-Time Intensity (ATI) plot Intense FAI echoes associated with plasma bubbles were observed from the EAR southward beam soon after the F-region sunset. Maximum altitude of the echoes reached 800 km. S. Fukao, Y. Ozawa, T. Yokoyama, M. Yamamoto, and R. T. Tsunoda, J. Geophys. Res., 109, A02304, 2004.

  7. EAST Eastward propagation of FAI echoing region is clearly seen. SOUTH WEST Terminator Growing FAI EAR Multiple Beam Observation of F-region FAI Growing FAIs were detected in the observation region with 11 beam directions.

  8. Animation of F-region FAI

  9. A06 A04 November 12, 2001 Sata Darwin Plasma Bubbles Observed with Airglow Imagersat Conjugate Points Sata Imager Magnetic Equator Long. EAR site Imager Photometer GPS receiver Count Count Darwin Imager Plasma Bubble Long. Observation by Prof. Ogawa STE Laboratory, Nagoya Univ. Otsuka, Y., K. Shiokawa, T. Ogawa, and P. Wilkinson, Geophys. Res. Lett., in press, 2004 . Magnetic Equator Darwin Sata

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