The Seventh Symposium on Polar Science (29 November - 2 December, 2016)

Interdisciplinary Session
[IM] Middle atmosphere and thermosphere
横断セッション [IM] 中層大気・熱圏

Scopes
The middle atmosphere and thermosphere at altitudes of 10 - 100 and 100 - 500 km, respectively, are partially overlapped by the ionosphere, in which plasma dynamics plays an important role. They are also transition regions where various types of interactions and vertical coupling processes are caused by wave propagation from the troposphere and the precipitation of energetic particles from the sun and magnetosphere. Viewpoints of both aeronomy and meteorology, and related interdisciplinary studies, are essential to understanding these altitude regions. This session provides an opportunity to present and discuss observational, theoretical, and modeling studies focusing on a variety of phenomena in the middle atmosphere and thermosphere.

セッションの概要
高度約10-100kmの中層大気、および約100-500kmの熱圏は、プラズマの振る舞いが重要な電離圏とも一部空間的に重なっており、各種気象現象が卓越する対流圏からの波動伝播や太陽・磁気圏起源の粒子降り込みなどに起因する様々な相互作用と大気上下結合過程が引き起こされる遷移領域でもある。この高度領域では、気象学的視点と超高層大気物理学的視点の双方が重要であり、両分野の協力・融合が不可欠である。そこで、中層大気・熱圏における諸現象を対象とする観測、理論、モデル等を用いた全ての研究の発表・議論の場として本セッションを開催する。

Convener: Yoshihiro Tomikawa (NIPR)

Oral presentations (13:00 - 16:30)

Date : Wed. 30 Nov.
Place : 3F Seminar room D305, Institute of Statistics and Mathematics
口頭発表会場:統計数理研究所 3階 セミナー室D305

Chair: Toru Takahashi (NIPR)
座長:高橋 透(極地研)
13:00 - 13:15 Anomalous ambipolar diffusion observed using meteor radars in polar regions *Masaki Tsutsumi (NIPR), Yasunobu Ogawa (NIPR), Satonori Nozawa (ISEE), Chris Hall (The Arctic University of Norway)
極域の流星レーダーで観測される両極性拡散係数の異常増大について *堤 雅基(NIPR)、小川泰信(NIPR)、野澤悟徳(ISEE)、Chris Hall(ノルウェー北極大学)
13:15 - 13:30 Thermospheric Wind in the lower F-region *Huixin Liu (Kyushu U)
13:30 - 13:45 El Niño-Southern Oscillation in ionospheric and thermospheric tides *Yang-Yi Sun (Kyushu U), Huixin Liu (Kyushu U), Yasunobu Miyoshi (Kyushu U)
13:45 - 14:00 Effects of energetic particle precipitation on the SH middle atmosphere in the latest reanalysis data *Yoshihiro Tomikawa (NIPR, SOKENDAI)
14:00 - 14:15 The momentum budget and generation of Rossby waves and gravity waves in the MLT region *Ryosuke Yasui (U. Tokyo), Kaoru Sato (U. Tokyo), Yasunobu Miyoshi (Kyusyu U)
中間圏および下部熱圏の運動量収支とロスビー波と重力波の発生 *安井良輔(東京大学)、佐藤 薫(東京大学)、三好勉信(九州大学)
14:15 - 14:30 Data assimilation by EnKF and analysis under the lower thermosphere during ICSOM *Dai Koshin (U.Tokyo), Kaoru Sato (U. Tokyo), Kazuyuki Miyazaki (JAMSTEC)
アンサンブルカルマンフィルターを用いた下部熱圏までのICSOM期間中のデータ同化解析 *小新 大(東大院理)、佐藤 薫(東大院理)、宮崎和幸(JAMSTEC)
Coffee Break
Chair: Yoshihiro Tomikawa (NIPR)
座長:冨川喜弘(極地研)
14:45 - 15:15 Linking mesospheric coolings and stratospheric warmings *Christoph Zűlicke (IAP) and Vivien Matthias (IAP)
15:15 - 15:30 A characteristic response of the northern middle atmosphere to elevated stratopause *Shun Nakajima (U. Tokyo), Kaoru Sato (U. Tokyo)
北半球中層大気の圏界面ジャンプに対する応答 *中島 駿(東京大学)、佐藤 薫(東京大学)
15:30 - 15:45 Study of gravity wave in middle atmosphere over Syowa using Rayleigh/Raman lidar from 2011 to 2015 *Masaru Kogure (SOKENDAI, NIPR), Takuji Nakamura (NIPR, SOKENDAI), Mitsumu K. Ejiri (NIPR, SOKENDAI), Takanori Nishiyama (NIPR, SOKENDAI), Yoshihiro Tomikawa (NIPR, SOKENDAI), Masaki Tsutsumi (NIPR, SOKENDAI), Hidehiko Suzuki (Meiji U), Takuya D. Kawahara (Shinshu U), Makoto Abo (Tokyo Metropolitan U), Takuo T. Tsuda (U. Electro-Communications)
15:45 - 16:00 Formation of two dimensional and three dimensional circulation responding to unsteady wave forcing in the middle atmosphere *Yuki Hayashi (U. Tokyo) and Kaoru Sato (U. Tokyo)
非定常な波強制に対する中層大気2次元及び3次元循環の形成 *林 佑樹(東大院理)、佐藤 薫(東大院理)
16:00 - 16:15 A study on zonally asymmetric structures of material circulation in the stratosphere *Soichio Hirano, Kaoru Sato (U. Tokyo)
16:15 - 16:30 An Analysis of Gravity Waves in the Troposphere and Lower Stratosphere Observed by the PANSY Radar at Syowa Station in the Antarctic *Yuichi Minamihara (U. Tokyo), Kaoru Sato (U. Tokyo), Masaki Tsutsumi (NIPR) and Toru Sato (Kyoto U)
PANSYレーダーで観測された昭和基地上空の対流圏・下部成層圏重力波の解析 *南原優一(東大院理)、佐藤 薫(東大院理)、堤 雅基(極地研)、佐藤 亨(京大情報)
16:30 - 18:00 Poster presentations (Core time)
Place: Entrance Hall (1st floor) at National Institute of Polar Research (NIPR)
ポスター発表会場:国立極地研究所1階交流アトリウム

Poster presentations (Core time: 16:30 - 18:00)

Place : Entrance Hall (1st floor) at National Institute of Polar Research (NIPR)
ポスター発表会場:国立極地研究所1階交流アトリウム

IMp1 Gravity Waves in the Thermosphere Simulated by a whole atmosphere-ionosphere model (GAIA) *Yasunobu Miyoshi (Kyushu U), Hitoshi Fujiwara (Seikei U), Hidekatsu Jin (NICT), Hiroyuki Shinagawa (NICT)
全大気結合モデルGAIAで得られた熱圏重力波のふるまいについて *三好勉信(九大)、藤原 均(成蹊大)、陣 英克(NICT)、品川裕之(NICT)
IMp2 Variations of the meteor echo heights at middle latitudes *Libo Liu (IGGCAS, Kyushu U), Huixin Liu (Kyushu U), Yang-Yi Sun (Kyushu U)
IMp3 Antarctic Gravity Wave Imaging/Instrument Network (ANGWIN) *Takuji Nakamura (NIPR), Mitsumu K. Ejiri (NIPR), Mike Taylor (USU),Tracy Moffat-Griffin (BAS), Damian Murphy (AAD), JoséValentin Bageston (INPE), and ANGWIN members
IMp4 Na layer response to geomagnetic activities: statistical analysis based on Odin/OSIRIS data *T. T. Tsuda (UEC), T. Nakamura (NIPR), M. K. Ejiri (NIPR), T. Nishiyama (NIPR), K. Hosokawa (UEC), T. Takahashi (NIPR), J. Gumbel (Stockholm U), and J. Hedin (Stockholm U)
IMp5 Statistical study of sporadic sodium layer (SSL) in the polar lower thermosphere and upper mesosphere by using the Tromsø sodium LIDAR *Yohei Ogawa (Nagoya U),Satonori Nozawa (Nagoya U),Takuo Tsuda (U.Electro-Communications),Takuya Kawasaki (Shinshu U),Yasunobu Ogawa (NIPR),Hitoshi Fujiwara (Seikei U),Norihito Saito (RIKEN),Satoshi Wada (RIKEN), Toru Takahashi (NIPR), Masaki Tsutsumi (NIPR), Tetusya Kawabata (Nagoya U),Chris Hall(The Arctic U. Norway), Asgeir Brekke(The Arctic U. Norway)
トロムソナトリウムライダーを用いた北極域SSLの統計解析 *小川洋平(名古屋大学)、野澤悟徳(名古屋大学)、津田卓雄(電気通信大学)、川原琢也(信州大学)、小川泰信(極地研)、藤原 均(成蹊大学)、斎藤徳人(理化学研究所)、和田智之(理化学研究所)、高橋 透(極地研)、堤 雅基(極地研)、川端哲也(名古屋大学)、Hall Chris(ノルウェー北極大学)、Brekke Asgeir(ノルウェー北極大学)
IMp6 New applications of horizontal phase velocity spectrum derived from airglow imager at Syowa *Takashi S. Matsuda (SOKENDAI/NIPR)
IMp7 Measurements of stratospheric ozone and nitrogen dioxide with spectrometer type balloon-borne optical ozone sensor *Isao Murata (Tohoku U), Katsuyuki Noguchi (Nara Women's U)
スペクトル取得型光学オゾンゾンデによる成層圏オゾン・二酸化窒素高度分布観測 *村田 功(東北大)、野口克行(奈良女子大)