研究者
J-GLOBAL ID:200901015844081990   更新日: 2020年05月08日

川原 琢也

カワハラ タクヤ | KAWAHARA TAKUYA
所属機関・部署:
職名: 准教授
競争的資金等の研究課題 (5件):
  • 飛翔体搭載型水素/重水素吸収セルフォトメータの開発
  • オーロラによる温度の擾乱解析
  • 南極域中間圏界面温度の大気潮汐波、重力波による影響の解析
  • 中間圏界面(高度約100km)付近の温度観測のためのナトリウムライダーの開発と極域での観測、データ解析
  • 光学的手法を用いた観測器の開発と観測
論文 (42件):
  • Ejiri, Mitsumu K, Nakarnura, Takuji, Tsuda, Takuo T, Nishiyarna, Takanori, Abo, Makoto, She, Chiao-Yao, Nishioka, Michi, Saito, Akinori, Takahashi, Toru, Tsuno, Katsuhiko, Kawahara, Takuya D, Ogawa, Takayo, Wada, Satoshi. Observation of Synchronization Between Instabilities of the Sporadic E Layer and Geomagnetic Field Line Connected F Region Medium-Scale Travelling Ionospheric Disturbances. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. 2019. 124. 6. 4627-4638
  • Mondal, S, Sarkhel, S, Agarwal, Jay, Chakrabarty, D, Sekar, R, Yuan, Tao, Cai, Xuguang, Liu, Alan Z, Nozawa, Satonori, Saito, Norihito, Kawahara, Takuya D, Mlynczak, Martin G, Russell, James M, III. On the Long Lasting "C-Type" Structures in the Sodium Lidargram: The Lifetime of Kelvin-Helmholtz Billows in the Mesosphere and Lower Thermosphere Region. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS. 2019. 124. 4. 3110-3124
  • Ejiri, Mitsumu K, Nakamura, Takuji, Tsuda, Takuo T, Nishiyama, Takanori, Abo, Makoto, Takahashi, Toru, Tsuno, Katsuhiko, Kawahara, Takuya D, Ogawa, Takayo, Wada, Satoshi. Vertical fine structure and time evolution of plasma irregularities in the E-s layer observed by a high-resolution Ca+ lidar. EARTH PLANETS AND SPACE. 2019. 71. -
  • Takahashi, T, Hosokawa, K, Nozawa, S, Tsuda, T. T, Ogawa, Y, Tsutsumi, M, Hiraki, Y, Fujiwara, H, Kawahara, T. D, Saito, N, Wada, S, Kawabata, T, Hall, C. Depletion of mesospheric sodium during extended period of pulsating aurora. Journal of Geophysical Research. 2017. 122. 1. 1212-1220
  • Kawahara, T. D, Nozawa, S, Saito, N, Kawabata, T, Tsuda, T. T, Wada, S. Sodium temperature/wind lidar based on laser-diode-pumped Nd:YAG lasers deployed at Tromsø, Norway (696°N, 192°E). Optics Express. 2017. 25. 12
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講演・口頭発表等 (7件):
  • Mesospheric potassium layer observation by a frequency-tunable resonance scattering lidar system.
    (40th COSPAR Scientific Assembly 2014)
  • Vertical profiles of atmospheric temperature between upper troposphere and mesosphere obtained from Rayleigh/Raman lidar installed at Syowa station in Antarctica.
    (40th COSPAR Scientific Assembly 2014)
  • Variations of the neutral temperature inside an SSL during a night of high auroral activity above Tromsø
    (American Geophysical Union, Fall Meeting 2013 2013)
  • All solid state, high power (4 W) sodium temperature/wind lidar deployed at EISCATradar site, Norway (69.6oN, 19.2oE)
    (International CAWSES-II Symposium 2013)
  • A new tunable resonance scattering lidar for upper atmospheric measurements at Syowa Station: Preliminary observations in Japan
    (International CAWSES-II Symposium 2013)
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所属学会 (2件):
米国光学学会 ,  米国地球物理学会
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