Prediction of solar cycle activity and investigation of its impact on climate

2017 Fiscal Year Annual Research Report

• Project Area: Solar-Terrestrial Environment Prediction as Science and Social Infrastructure
• Project/Area Number: 15H05816
• Research Institution: Kyoto University
• Principal Investigator: 余田 成男 京都大学, 理学研究科, 教授 (30167027)
• Co-Investigator(Kenkyū-buntansha): 櫻井 隆 国立天文台, 太陽観測科学プロジェクト, 名誉教授 (40114491) ; 今田 晋亮 名古屋大学, 宇宙地球環境研究所, 講師 (40547965) ; 宮原 ひろ子 武蔵野美術大学, 造形学部, 准教授 (00532681) ; 浅井 歩 京都大学, 理学研究科, 准教授 (50390620) ; 上野 悟 京都大学, 理学研究科, 助教 (70303807) ; 吉田 康平 気象庁気象研究所, 気候研究部, 研究官 (10636038)
• Project Period (FY): 2015-06-29 – 2020-03-31
• Keywords: 太陽物理学 / 地球システム科学 / 太陽活動変動 / 宇宙線変動 / 気候変動

Outline of Annual Research Achievements

太陽磁場精密観測グループは、衛星・地上の先端的観測データの高度処理を進めるとともに、ベルギー王立天文台による黒点相対数の大改訂を受けて、我が国のアーカイブデータとの比較検証を行った。また、太陽周期予測数値計算グループは、太陽極域磁場と次の太陽周期活動との非常に高い相関関係に基づいて、表面磁束輸送モデルで次期太陽極域磁場を推定し更に太陽周期活動予測をする手法を確立した。そして次期サイクルの活動が現在のサイクル24の70％程度の低さになるという予測結果を得た。この結果を論文発表するとともに、名古屋大で国際ワークショップを主催して、次期周期予測の国際相互比較を行い、予測手法の精緻化に向けて議論した。
太陽放射変動グループは、乾板太陽画像データのデジタル化・較正処理を行い、20世紀半ばの太陽活動変動のデータ解析を行って、導出したプラージュ・インデックスは電波放射変動と相関が高いことを明らかにした。また、宇宙線変動グループは、マウンダー極小期に発生した宇宙線強度異常増加イベントを高精度かつ絶対年代で決定するため、樹木年輪中の炭素14の高精度分析を行った。さらに、国際共同研究でトラバーチン堆積物中の宇宙線生成核種・ベリリウム10による宇宙線強度変動の復元を開始した。
地球システムモデル計算グループは、MRI地球システムモデルを用いて産業革命前と完新世中期の古気候再現実験を行い、ミランコビッチ周期による日射量変動に起因した気候変化を定量的に評価した。成層圏オゾン化学過程の扱いに依存して、南極域地上気温変化に最大1.7度の差が生じることを発見し、成層圏化学過程の重要性を初めて指摘した。次期大気海洋結合モデル相互比較プロジェクトCMIP6のための計算も順調に進んでいる。また、高エネルギー粒子降下による中層大気化学過程等への影響についても、素過程モデル開発と化学-気候モデルへの導入を進めた。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

次期太陽周期予測関係では、次期太陽活動極大の予測の準備段階として、国立天文台で長期継続観測している各種データの整備が進み、「ひので」衛星等の磁場データを用いた主要パラメータを求めるツールが完成した。また、太陽全球表面磁場の時間発展を解く表面磁束輸送計算コード開発が終わり、観測結果から太陽極小期の極域磁場を予測し更に次のサイクルの太陽活動度の予測する手法を確立できた。これで、次期サイクルの予測に関する基本目標はすでにほぼ達成しており、当初の計画を上回る成果を得ることができた。
太陽放射変動・宇宙線変動関係では、太陽彩層画像の乾板データを較正し、プラージュ・インデックスと呼ばれる太陽紫外線強度の指標を導出できるようになった。また、樹木年輪よび氷床コアの宇宙線生成核種の単年分解能での精密測定が進んだ。
太陽活動変動気候影響関係では、MRI地球システムモデルの性能検証のため古気候再現計算を行い、ミランコビッチ・サイクルによる日射量変動に起因した気候の変化を定量的に調べ、地表の気候変化に対して成層圏オゾン化学過程の重要性を初めて指摘することができた。また、高エネルギー粒子降下に伴う化学効果を導入し、過去事例で感度実験を行って、本格実験を開始できる段階となった。

Strategy for Future Research Activity

次期太陽周期予測関係では、太陽磁場観測データ等を用いて主要パラメータの10年スケール時間変動の解析を進め、開発してきた表面磁束輸送モデルをさらに改良し、太陽全球表面磁場の時間発展を解いて、予測した極小期の極域磁場をもとに第25太陽周期の予測を行う。
太陽放射変動・宇宙線変動関係では、較正済み太陽彩層画像乾板データアーカイブから太陽紫外線強度を推定し、地球高層大気応答との対応調査を進める。また、樹木年輪、氷床コアの宇宙線生成核種を単年分解能で精密分析して、小氷期における太陽活動周期及び宇宙線強度変動の詳細解析を進める。
太陽活動変動気候影響関係では、太陽高エネルギー粒子によるNOx, HOx生成過程を導入したMRI地球システムモデルを用いて、次期大気海洋結合モデル相互比較プロジェクトCMIP6に準拠した実験を進める。また、775年の三宅イベントを事例として、14C、10Beの移流実験を行い、地質学的試料分析研究との共同研究を推進する。
さらに、上記基本目標に加えて、マウンダーミニマムのような極端な状況を作り出す原因を、観測データ解析、試料分析、数値実験から探り、発展目標の達成をめざす。

Research Products

• [Int'l Joint Research] East China Normal University(中国)
  • Country Name: CHINA
  • Counterpart Institution: East China Normal University
• [Int'l Joint Research] Indian Institute of Astrophysics (IIAP)(インド)
  • Country Name: INDIA
  • Counterpart Institution: Indian Institute of Astrophysics (IIAP)
• [Journal Article] Super-strong Magnetic Field in Sunspots (2018)
  • Author(s): Okamoto, T.J., Sakurai, T.
  • Journal Title: strophysical Journal Letters Volume: 852 Pages: id.L16 (6 pp.)
  • DOI: 10.3847/2041-8213/aaa3d8
  • Peer Reviewed
• [Journal Article] Statistical Study of Solar White-light Flares and Comparison with Superflares on Solar-type Stars (2018)
  • Author(s): Namekata, K., Sakaue, T., Watanabe, K., Asai, A., Maehara, H., Notsu, Y., Notsu, S., Honda, S., Ishii, T., Ikuta, K., Nogami, D., Shibata, K.
  • Journal Title: Long-term Datasets for the Understanding of Solar and Stellar Magnetic Cycles, Proceedings of the IAU Symposium 340 Volume: - Pages: 221-224
  • DOI: 10.1017/S1743921318001126
• [Journal Article] Downward influence of QBO-like oscillation on moist convection in a two-dimensional minimal model framework (2017)
  • Author(s): Bui H., E. Nishimoto, and S. Yoden
  • Journal Title: Journal of the Atmospheric Sciences Volume: 74 Pages: 3635-3655
  • DOI: 10.1175/JAS-D-17-0095.1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Influence of the stratospheric quasi-biennial oscillation on the Madden?Julian oscillation during austral summer (2017)
  • Author(s): Nishimoto, E., and Yoden, S.
  • Journal Title: Journal of the Atmospheric Sciences Volume: 74-4 Pages: 1105-1125
  • DOI: 10.1175/JAS-D-16-0205.1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Ms. Hisako Koyama: From Amateur Astronomer to Long-Term Solar Observer (2017)
  • Author(s): Knipp DJ, Liu H-X, Hayakawa H
  • Journal Title: Space Weather Volume: 15 Pages: 1215-1221
  • DOI: 10.1002/2017SW001704
  • Peer Reviewed
• [Journal Article] Three-dimensional Magnetohydrodynamic Simulation of the Formation of Solar Chromospheric Jets with Twisted Magnetic Field Lines (2017)
  • Author(s): H. Iijima and T. Yokoyama
  • Journal Title: The Astrophysical Journal Volume: Volume 848, Number 1 Pages: 38?53
  • DOI: 10.3847/1538-4357/aa8ad1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Improvement of solar-cycle prediction: Plateau of solar axial dipole moment (2017)
  • Author(s): Iijima, H.; Hotta, H.; Imada, S.; Kusano, K.; Shiota, D.
  • Journal Title: Astronomy & Astrophysics Volume: 607 Pages: L2
  • DOI: 10.1051/0004-6361/201731813
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Overview of experiment design and comparison of modelsparticipating in phase 1 of the SPARC Quasi-Biennial Oscillationinitiative (QBOi) (2017)
  • Author(s): Butchart Neal、Anstey James A.、Hamilton Kevin、Osprey Scott、McLandress Charles、Lott Francois、Scinocca John、Stockdale Watanabe Shingo、Yoshida Kohei、at all.
  • Journal Title: Geoscientific Model Development Discussions Volume: 11 Pages: 1～35
  • DOI: 10.5194/gmd-2017-187
  • Peer Reviewed / Open Access
• [Journal Article] The PMIP4 contribution to CMIP6 ? Part 4: Scientific objectives and experimental design of the PMIP4-CMIP6 Last Glacial Maximum experiments and PMIP4 sensitivity experiments (2017)
  • Author(s): Kageyama, M., Albani, S., Braconnot, P., Harrison, S. P., Hopcroft, P. O., Ivanovic, R. F., Lambert, F., Marti, O., Peltier, W. R., Peterschmitt, J.-Y., Roche, D. M., Tarasov, L., Zhang, X., Brady, E. C., Haywood, A. M., LeGrande, A. N., Lunt, D. J., Mahowald, N. M., Mikolajewicz, Yoshida, K., at all.
  • Journal Title: Geosci. Model Dev. Volume: 10 Pages: 4035-4055
  • DOI: 10.5194/gmd-10-4035-2017
  • Peer Reviewed / Open Access
• [Journal Article] Future Changes in the Ozone Quasi-Biennial Oscillation with Increasing GHGs and Ozone Recovery in CCMI Simulations (2017)
  • Author(s): Naoe, H., M. Deushi, K. Yoshida, and K. Shibata
  • Journal Title: J. Climate Volume: 30 Pages: 6977?6997
  • DOI: 10.1175/JCLI-D-16-0464.1
  • Peer Reviewed
• [Journal Article] Relationship between the Northern Pacific Gyre Oscillation and tree-ring cellulose oxygen isotopes in northeastern Japan (2017)
  • Author(s): Wataru Sakashita, Hiroko Miyahara, Yusuke Yokoyama, Takahiro Aze, Stephen P. Obrochta, Takeshi Nakatsuka
  • Journal Title: Geoscience Letters Volume: 4 Pages: 29
  • Peer Reviewed
• [Journal Article] Searching for the 27-day solar rotational cycle in lightning events recorded in old diaries in Kyoto from the 17th to 18th century (2017)
  • Author(s): Hiroko Miyahara, Yasuyuki Aono, Ryuho Kataoka
  • Journal Title: ANGEO Communicates Volume: 35 Pages: 1195-1200
  • DOI: 10.5194/angeo-35-1195-2017
  • Peer Reviewed
• [Journal Article] Hydroclimate reconstruction in central Japan over the past four centuries from tree-ring cellulose δ18O (2017)
  • Author(s): Wataru Sakashita, Hiroko Miyahara, Yusuke Yokoyama, Takahiro Aze, Takeshi Nakatsuka, Yasuharu Hoshino, Motonari Ohyama, Hitoshi Yonenobu, Keiji Takemura
  • Journal Title: Quaternary International Volume: 455 Pages: 1-7
• [Journal Article] Solar 27-day rotational period detected in wide-area lightning activity in Japan (2017)
  • Author(s): Miyahara Hiroko、Higuchi Chika、Terasawa Toshio、Kataoka Ryuho、Sato Mitsuteru、Takahashi Yukihiro
  • Journal Title: Annales Geophysicae Volume: 35 Pages: 583～588
  • DOI: 10.5194/angeo-35-583-2017
  • Peer Reviewed
• [Journal Article] Records of Sunspots and Aurora Candidates in the Chinese Official Histories of the Yu?n and Ming Dynasties during 1261-1644 (2017)
  • Author(s): H. Hayakawa, H. Tamazawa, Y. Ebihara, H. Miyahara, A. D. Kawamura, T. Aoyama, H. Isobe
  • Journal Title: PASJ Volume: 0 Pages: 1-25
  • DOI: 10.1093/pasj/psx045
  • Peer Reviewed
• [Journal Article] Statistical Study of the Magnetic Field Orientation in Solar Filaments (2017)
  • Author(s): Hanaoka, Y., Sakurai, T.
  • Journal Title: Astrophysical Journal Volume: 851 Pages: id.130 (11 pp.)
  • DOI: 10.3847/1538-4357/aa9cf1
  • Peer Reviewed
• [Journal Article] Spatial Inhomogeneity of Kinetic and Magnetic Dissipations in Thermal Convection (2017)
  • Author(s): H. Hotta
  • Journal Title: The Astrophysical Journal Volume: 845 Pages: 164
  • DOI: 10.3847/1538-4357/aa8320
  • Peer Reviewed
• [Journal Article] Solar Overshoot Region and Small-scale Dynamo with Realistic Energy Flux (2017)
  • Author(s): H. Hotta
  • Journal Title: The Astrophysical Journal Volume: 843 Pages: 52
  • DOI: 10.3847/1538-4357/aa784b
  • Peer Reviewed
• [Journal Article] Statistical Studies of Solar White-light Flares and Comparisons with Superflares on Solar-type Stars (2017)
  • Author(s): Namekata, K., Sakaue, T., Watanabe, K., Asai, A., Maehara, H., Notsu, Y., Notsu, S., Honda, S., Ishii, T. T., Ikuta, K., Nogami, D., Shibata, K.
  • Journal Title: The Astrophysical Journal Volume: 851 Pages: id.91
  • DOI: 10.3847/1538-4357/aa9b34
  • Peer Reviewed
• [Journal Article] Observational study on the fine structure and dynamics of a solar jet. I. Energy build-up process around a satellite spot (2017)
  • Author(s): Sakaue, T., Tei, A., Asai, A., Ueno, S., Ichimoto, K., Shibata, K.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: id.80
  • DOI: 10.1093/pasj/psx071
  • Peer Reviewed
• [Journal Article] Variation of the Solar Microwave Spectrum in the Last Half Century (2017)
  • Author(s): Shimojo, M., Iwai, K., Asai, A., Nozawa, S., Minamidani, T., Saito, M.
  • Journal Title: The Astrophysical Journal Volume: 848 Pages: id.62
  • DOI: 10.3847/1538-4357/aa8c75
  • Peer Reviewed
• [Journal Article] Toward Spectroscopically Detecting the Global Latitudinal Temperature Variation on the Solar Surface (2017)
  • Author(s): Takeda, Y., UeNo, S.
  • Journal Title: Solar Physics Volume: 292 Pages: id.123
  • DOI: 10.1007/s11207-017-1144-x
  • Peer Reviewed
• [Journal Article] Temporal Evolution and Spatial Distribution of White-light Flare Kernels in a Solar Flare (2017)
  • Author(s): Kawate, T., Ishii, T., Nakatani, Y., Ichimoto, K., Asai, A., Morita, S., Masuda, S.
  • Journal Title: American Astronomical Society, SPD meeting Volume: 48 Pages: id.100.02
• [Journal Article] Does the radial-tangential macroturbulence model adequately describe the spectral line broadening of solar-type stars? (2017)
  • Author(s): Takeda, Y., UeNo, S.
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: id.46
  • DOI: 10.1093/pasj/psx022
  • Peer Reviewed
• [Journal Article] A New Solar Imaging System for Observing High-Speed Eruptions: Solar Dynamics Doppler Imager (SDDI) (2017)
  • Author(s): Ichimoto, K., Ishii, T. T., Otsuji, K., Kimura, G., Nakatani, Y., Kaneda, N., Nagata, S., UeNo, S., Hirose, K., Cabezas, D., Morita, S.
  • Journal Title: Solar Physics Volume: 292 Pages: id.63
  • DOI: 10.1007/s11207-017-1082-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Long-lasting Extreme Magnetic Storm Activities in 1770 Found in Historical Documents (2017)
  • Author(s): Hayakawa Hisashi、Iwahashi Kiyomi、Ebihara Yusuke、Tamazawa Harufumi、Shibata Kazunari、Knipp Delores J.、Kawamura Akito D.、Hattori Kentaro、Mase Kumiko、Nakanishi Ichiro、Isobe Hiroaki
  • Journal Title: The Astrophysical Journal Volume: 850 Pages: L31～L31
  • DOI: 10.3847/2041-8213/aa9661
  • Peer Reviewed / Open Access
• [Journal Article] Possible Cause of Extremely Bright Aurora Witnessed in East Asia on 17 September 1770 (2017)
  • Author(s): Ebihara Yusuke、Hayakawa Hisashi、Iwahashi Kiyomi、Tamazawa Harufumi、Kawamura Akito Davis、Isobe Hiroaki
  • Journal Title: Space Weather Volume: 15 Pages: 1373～1382
  • DOI: 10.1002/2017SW001693
  • Peer Reviewed
• [Journal Article] Records of auroral candidates and sunspots in Rikkokushi, chronicles of ancient Japan from early 7th century to 887 (2017)
  • Author(s): Hayakawa Hisashi、Iwahashi Kiyomi、Tamazawa Harufumi、Ebihara Yusuke、Kawamura Akito Davis、Isobe Hiroaki、Namiki Katsuko、Shibata Kazunari
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 1-25
  • DOI: 10.1093/pasj/psx087
• [Journal Article] Records of sunspots and aurora candidates in the Chinese official histories of the Yu?n and M?ng dynasties during 1261?1644 (2017)
  • Author(s): Hayakawa Hisashi、Tamazawa Harufumi、Ebihara Yusuke、Miyahara Hiroko、Kawamura Akito Davis、Aoyama Tadanobu、Isobe Hiroaki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: 1-26
  • DOI: 10.1093/pasj/psx045
  • Peer Reviewed / Open Access
• [Journal Article] The earliest drawings of datable auroras and a two-tail comet from the Syriac Chronicle of Z?qn?n (2017)
  • Author(s): Hayakawa Hisashi、Mitsuma Yasuyuki、Fujiwara Yasunori、Kawamura Akito Davis、Kataoka Ryuho、Ebihara Yusuke、Kosaka Shunsuke、Iwahashi Kiyomi、Tamazawa Harufumi、Isobe Hiroaki
  • Journal Title: Publications of the Astronomical Society of Japan Volume: 69 Pages: psw128～psw128
  • DOI: 10.1093/pasj/psw128
  • Peer Reviewed / Open Access
• [Journal Article] A grid refinement study of trade wind cumuli simulated by a Lagrangian cloud microphysical model: the super-droplet method (2017)
  • Author(s): Sato, Y., Shima, S.-i. and Tomita, H.
  • Journal Title: Atmos. Sci. Lett. Volume: 18 Pages: 359-365
  • DOI: 10.1002/asl.764
  • Peer Reviewed / Open Access
• [Journal Article] Non-Gaussian data assimilation of satellite-based leaf area index observations with an individual-based dynamic global vegetation model (2017)
  • Author(s): Arakida, H., Miyoshi, T., Ise, T., Shima, S.-I., and Kotsuki, S.
  • Journal Title: Nonlin. Processes Geophys. Volume: 24 Pages: 553-567
  • DOI: 10.5194/npg-24-553-2017
  • Peer Reviewed / Open Access
• [Journal Article] On the CCN (de)activation nonlinearities (2017)
  • Author(s): Arabas, S. and Shima, S.-I.
  • Journal Title: Nonlin. Processes Geophys. Volume: 24 Pages: 535-542
  • DOI: 10.5194/npg-24-535-2017
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] シンポジウム 「エアロゾル・雲・降水の相互作用に関する研究集会」報告 (2017)
  • Author(s): 荒木健太郎, 當房豊, 山下克也, 佐藤陽佑, 鈴木健太郎, 瀬戸里枝, 川合秀明, 山内晃, 小池真, 三隅良平, 三浦和彦, 島伸一郎, 橋本明弘, 田尻拓也, Tzu-Hsien Kuo, 岩田歩, 折笠成宏, 木ノ内健人
  • Journal Title: 天気 Volume: 64(7) Pages: 483-491
  • Open Access
• [Journal Article] 超水滴法による雲の精密シミュレーションとその工学応用 (2017)
  • Author(s): 島伸一郎, 前田晃佑
  • Journal Title: 化学工学誌 Volume: 81巻5号 Pages: 254-257
• [Journal Article] Improvement of solar-cycle prediction: Plateau of solar axial dipole moment (2017)
  • Author(s): Bamba, Yumi; Lee, Kyoung-Sun; Imada, Shinsuke; Kusano, Kanya
  • Journal Title: The Astrophysical Journal Volume: 840 Pages: 116
  • DOI: 10.3847/1538-4357/aa6dfe
  • Peer Reviewed
• [Journal Article] Characterization of monthly precipitation over Indochina Region to evaluate CMIP5 Historical Runs (2017)
  • Author(s): Rattana Chhin, Hoang-Hai Bui, and Shigeo Yoden
  • Journal Title: JDPRI Annuals Volume: 60B Pages: 502-522
  • DOI: -
• [Journal Article] Impact of interactive chemistry of stratospheric ozone on Southern Hemisphere paleoclimate simulation (2017)
  • Author(s): Noda, S., Kodera, K., Adachi, Y., Deushi, M., Kitoh, A., Mizuta, R., Murakami, S., Yoshida, K., and Yoden, S.
  • Journal Title: Journal of Geophysical Research-Atmospheres Volume: 122-2 Pages: 878-895
  • DOI: 10.1002/2016JD025508
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Comparing simulated size distributions of precipitation systems at different model resolution (2017)
  • Author(s): Otsuka, S., Trilaksono,N.J., and Yoden, S.
  • Journal Title: SOLA Volume: 13 Pages: 130-134
  • DOI: 10.2151/sola.2017-024
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Presentation] EUVSTでスピキュールの何が知りたいか (2018)
  • Author(s): 飯島陽久
  • Organizer: 太陽研連シンポジウム「太陽研究の将来展望」
  • Invited
• [Presentation] How do CMIP5 models drive upwelling in the tropical tropopause layer? (2018)
  • Author(s): oshida, K., and R. Mizuta
  • Organizer: The UTLS: current status and emerging challenges
  • Int'l Joint Research
• [Presentation] 「ひので」観測10年：黒点磁場強度ランキング (2018)
  • Author(s): 岡本丈典、桜井隆
  • Organizer: 日本天文学会春季年会
• [Presentation] 対流層の底から光球までを包括した三次元熱対流計算 (2018)
  • Author(s): 堀田英之、飯島陽久
  • Organizer: 日本天文学会
• [Presentation] 極磁場の形成過程における先行後行黒点非対称性の効果 (2018)
  • Author(s): 飯島陽久、今田晋亮、堀田英之
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 保存量に対して利用出来る音速抑制法の提案 (2018)
  • Author(s): 飯島陽久
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] 太陽大気形成過程における観測・理論の現状と将来展望 (2018)
  • Author(s): 今田晋亮、勝川行雄、鳥海森、政田洋平、仲田資季
  • Organizer: 第３５回プラズマ・核融合学会 年会
  • Invited
• [Presentation] 高感度 EUV/UV 分光望遠鏡衛星 (Solar-C EUVST):サイエンスターゲット及び観測要求性能 (2018)
  • Author(s): 今田晋亮, Solar-C_EUVST小型検討チーム
  • Organizer: 日本天文学会２０１８年秋季年会
• [Presentation] Thermal Non-equilibrium Plasma Observed by Hinode (2018)
  • Author(s): Shinsuke Imada
  • Organizer: Hinode 12
  • Int'l Joint Research
• [Presentation] Thermal Non-equilibrium Plasma Observed by Hinode (2018)
  • Author(s): Shinsuke Imada
  • Organizer: AOGS 2018
  • Int'l Joint Research / Invited
• [Presentation] Science Objectives of Solar-C_EUVST (2018)
  • Author(s): Shinsuke Imada
  • Organizer: 地球惑星科学連合大会２０１8
  • Int'l Joint Research / Invited
• [Presentation] 飛騨天文台SMART/SDDI で観測された浮上磁場領域とアーチフィラメントシステム (2018)
  • Author(s): 町田亜希, 浅井歩, 大辻賢一
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] Dynamics Processes of the Moreton Wave on 2014 March 29 (2018)
  • Author(s): Denis P. Cabezas, Ayumi Asai, Kiyoshi Ichimoto, Satoru UeNo, Mutsumi Ishitsuka, Kazunari Shibata
  • Organizer: 日本天文学会2018年春季年会
• [Presentation] A grid refinement study on shallow cumuli using a large eddy simulation model (2018)
  • Author(s): Y. Sato, S. Shima, H. Tomita
  • Organizer: NITech Lectures on Turbulence and Cloud
  • Int'l Joint Research / Invited
• [Presentation] Carrington-class storms excavated from Historical Documents (2018)
  • Author(s): Hayakawa H.
  • Organizer: SAC Seminar
  • Int'l Joint Research / Invited
• [Presentation] Surveying Major Historical Space Weather Events: Beyond the Coverage of Magnetic Observations (2018)
  • Author(s): Hayakawa H.
  • Organizer: NSO Weekly Seminar
  • Int'l Joint Research / Invited
• [Presentation] Overview of Oriental Sunspot Observations: Historical Perspective to Modern View (2018)
  • Author(s): Hayakawa H.
  • Organizer: Symposium on Historical Astronomical Records and Moden Science
  • Int'l Joint Research
• [Presentation] Three-dimensional simulation of chromospheric jets with twisted magnetic field lines in the chromosphere (2017)
  • Author(s): Harihisa Iijima
  • Organizer: Solarnet IV Meeting
  • Int'l Joint Research / Invited
• [Presentation] Numerical Simulations on the Regional Dependence of Chromospheric Jets (2017)
  • Author(s): Harihisa Iijima
  • Organizer: HINODE-11/IRIS-8 SCIENCE MEETING
  • Int'l Joint Research / Invited
• [Presentation] 太陽表面磁場を用いた次期太陽周期活動度予測 (2017)
  • Author(s): 飯島陽久
  • Organizer: 第142回 地球電磁気・地球惑星圏学会(SGEPSS) 2017年秋学会
  • Invited
• [Presentation] Improved climate simulation using a new earth system model MRI-ESM2 focusing on middle atmosphere (2017)
  • Author(s): Yoshida, K., S. Yukimoto, M. Deushi, H. Kawai, N. Oshima, T. Koshiro, E. Shindo, M. Hosaka, H. Tsujino, S. Urakawa, H. Yoshimura, T. Y. Tanaka, and Y. Adachi
  • Organizer: Fourth International Conference on Earth System Modelling
  • Int'l Joint Research
• [Presentation] CMIP6における太陽活動変動と地球システムモデルの対応 (2017)
  • Author(s): 吉田康平, 出牛真, 行本誠史
  • Organizer: SMILES-2サイエンスワークショップ
• [Presentation] Reconstruction of the flux of galactic cosmic rays using travertine deposits: A pilot study (2017)
  • Author(s): Hongyang Xu, Hiroko Miyahara, Kazuho Horiuchi, Limin Zhou
  • Organizer: 地球電磁気・地球惑星圏学会
• [Presentation] 27-day solar rotational cycle in lightning activity in Kyoto from the 17th to 18th century (2017)
  • Author(s): H. Miyahara, Y. Aono, R. Kataoka
  • Organizer: 地球電磁気・地球惑星圏学会
• [Presentation] Solar 27-day rotational period detected in a wide-area lightning activity in Japan (2017)
  • Author(s): H. Miyahara, T. Terasawa, R. Kataoka, M. Sato, Y. Takahashi
  • Organizer: 日本地球惑星科学連合
  • Invited
• [Presentation] Precise dating of cosmic ray events in the 17th century found by the analysis of beryllium-10 content in Antarctic ice core (2017)
  • Author(s): H. Miyahara, K. Horiuchi, F. Tokanai, T. Moriya, Y. Yokoyama, H. Matsuzaki, H. Motoyama
  • Organizer: 日本地球惑星科学連合
• [Presentation] プロミネンスの緯度分布と太陽の周期活動 (2017)
  • Author(s): 萩野正興、櫻井 隆、篠田一也、入江 誠、浜屋ひかり、石塚千彰、藤森賢一
  • Organizer: 日本天文学会秋季年会
• [Presentation] 太陽内部熱対流・ダイナモの最新理論 (2017)
  • Author(s): 堀田英之
  • Organizer: 理論懇シンポジウム
  • Invited
• [Presentation] 太陽時期乱流シミュレーションの新展開 (2017)
  • Author(s): 堀田英之
  • Organizer: Plasma conference 2017
  • Invited
• [Presentation] Recent development of solar dynamo model (2017)
  • Author(s): Hideyuki Hotta
  • Organizer: Asia Pacific Solar Physics Meeting
  • Int'l Joint Research / Invited
• [Presentation] High resolution calculations of solar dynamo (2017)
  • Author(s): Hideyuki Hotta
  • Organizer: MPPC meeting
  • Int'l Joint Research / Invited
• [Presentation] Role of near-surface layer in global dynamo (2017)
  • Author(s): Hideyuki Hotta
  • Organizer: Flux emergence workshop
  • Int'l Joint Research
• [Presentation] テイラープラウドマン状態を破る磁場の役割 (2017)
  • Author(s): 堀田英之
  • Organizer: 日本天文学会
• [Presentation] 太陽のオーバーシュート総出の小スケールダイナモについて (2017)
  • Author(s): 堀田英之
  • Organizer: 日本流体力学会
• [Presentation] 太陽表面磁場を用いた次期太陽周期活動度予測 (2017)
  • Author(s): 飯島陽久、今田晋亮、堀田英之、草野完也、塩田大幸
  • Organizer: 地球電磁気・地球惑星圏学会 第142回総会・講演会
  • Invited
• [Presentation] 太陽彩層ジェットの領域依存性における磁束管膨張率の効果 (2017)
  • Author(s): 飯島陽久、横山央明
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Numerical Simulations on the Regional Dependence of Chromospheric Jets (2017)
  • Author(s): H.iijima
  • Organizer: Joint Hinode-11/IRIS-8 Science Meeting
  • Int'l Joint Research / Invited
• [Presentation] 高速成分を持つ小プラズマ塊の太陽面での発生分布解析 (2017)
  • Author(s): 廣瀬公美，一本潔，大辻賢一，石井貴子，浅井歩，京都大学SMARTチーム
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Hα、Hβ、Ca II 8542Aの同時観測によるプロミネンスの温度測定 (2017)
  • Author(s): 岡田翔陽，町田亜希，徳田怜実, 一本潔, 浅井歩，上野悟，柴田一成
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 温度と視線速度の位相差から探る、プロミネンスの中の波動の性質 (2017)
  • Author(s): 町田亜希, 岡田翔陽, 徳田怜実, 一本潔, 浅井歩, 上野悟, 柴田一成
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] 噴出するプロミネンスに見られた波動現象 (2017)
  • Author(s): 花岡庸一郎, 浅井歩
  • Organizer: 日本天文学会2017年秋季年会
• [Presentation] Progress of the application of the super-droplet method to mixed-phase clouds (2017)
  • Author(s): S. Shima, Y. Sato, A. Hashimoto
  • Organizer: Workshop on particle-based modeling of cloud microphysics
  • Int'l Joint Research
• [Presentation] Numerical study on marine stratocumulus and their turbulence structure using the super-droplet method (2017)
  • Author(s): K. Takeda, S. Shima
  • Organizer: Workshop on particle-based modeling of cloud microphysics
  • Int'l Joint Research
• [Presentation] Numerical experiments of aerosol impacts on warm clouds using a cloud-resolving model with the super droplet method (2017)
  • Author(s): K. Moriki, S. Shima, K. Tsuboki
  • Organizer: JpGU-AGU joint meeting 2017
  • Int'l Joint Research
• [Presentation] Current status of the IUGONET project (2017)
  • Author(s): Shinbori, A., Tanaka, Y., Umemura, N., Abe, S., Nose, M., UeNo, S.
  • Organizer: 日本地球惑星科学連合大会
  • Int'l Joint Research
• [Presentation] IUGONET Tools for Solar-Terrestrial Physics Research (2017)
  • Author(s): Tanaka, Y., Umemura, N., Abe, S., Shinbori, A., UeNo, S., Nose, M., and IUGONET project team
  • Organizer: Second VarSITI General Symposium
  • Int'l Joint Research
• [Presentation] 太陽SLODARによる大気ゆらぎ層の高さ分布の測定 (2017)
  • Author(s): 三浦則明, 菊池駿, 鈴木貴博, 山本大二郎, 野澤恵, 萩野正興, 上野悟, 一本潔
  • Organizer: 日本天文学会秋季年会
• [Presentation] 飛騨天文台におけるAO/GLAOの開発 (2017)
  • Author(s): 高橋進也, 三浦則明, 鈴木貴博, 菊池駿, 桑村進, 馬場直志, 花岡庸一郎, 上野悟, 仲谷善一, 一本潔
  • Organizer: 日本天文学会秋季年会
• [Presentation] IUGONET Activities for Data Sharing of Upper Atmospheric Data and Capacity Building (2017)
  • Author(s): Tanaka, Y., Umemura, N., Shinbori, A., Abe, S., UeNo, S., Nose, M., and IUGONET project team
  • Organizer: WDS Asia Oceania Conference 2017
  • Int'l Joint Research
• [Presentation] Arch Filament System の大気構造とその時間発展 (2017)
  • Author(s): 石川遼太郎、上野悟、一本潔、三澤浩昭、土屋史紀、小原隆博
  • Organizer: 日本天文学会春季年会
• [Presentation] ケーデンス1秒以下を目指した太陽彩層の高速2次元分光観測 (2017)
  • Author(s): 當村一朗、川上新吾、廣瀬公美，上野悟，一本潔
  • Organizer: 日本天文学会春季年会
• [Presentation] 高感度紫外線撮像分光装置 EUVST が目指すサイエンス検討 (2017)
  • Author(s): 今田晋亮, Solar-C_EUVST小型検討チーム
  • Organizer: 日本天文学会２０１７年秋季年会
• [Presentation] Predicting Solar Cycle 25 using Surface Flux Transport Model (2017)
  • Author(s): Imada, S., H. Iijima, H. Hotta, D. Shiota, O. Kanou, M. Fujiyama, and K. Kusano
  • Organizer: SPD meeting 2017
  • Int'l Joint Research
• [Presentation] Predicting Solar Cycle 25 using Surface Flux Transport Model (2017)
  • Author(s): Imada, S., H. Iijima, H. Hotta, D. Shiota, O. Kanou, M. Fujiyama, and K. Kusano
  • Organizer: AOGS 2017
  • Int'l Joint Research
• [Presentation] Project for Solar-Terrestrial Environment Prediction (2017)
  • Author(s): Imada, S., H. Iijima, H. Hotta, D. Shiota, O. Kanou, M. Fujiyama, and K. Kusano
  • Organizer: 地球惑星科学連合大会２０１７
  • Int'l Joint Research
• [Presentation] Scaling Space Weather Events Before Carrington Event (2017)
  • Author(s): Hayakawa H.
  • Organizer: SPOD Seminar of Rutherford Appleton Laboratory
  • Int'l Joint Research / Invited
• [Presentation] 歴史文献で遡る太陽活動 (2017)
  • Author(s): 早川尚志
  • Organizer: 天文教育普及研究会
  • Int'l Joint Research / Invited
• [Presentation] The days when aurorae were seen in Japan: Tracing back Japanese historical documents beyond the Carrington event (2017)
  • Author(s): Hayakawa H.
  • Organizer: World Data System Asia-Oceania Conference 2017
  • Int'l Joint Research / Invited
• [Presentation] 歴史文献におけるオーロラ図像史料と宇宙天気研究における可能性 (2017)
  • Author(s): 早川尚志
  • Organizer: 地球電磁気・地球惑星圏学会
• [Presentation] Great Auroral Displays under Carrington Magnetic Storm (2017)
  • Author(s): Hayakawa H.
  • Organizer: International Conference on Traditional Sciences in Asia 2017
  • Int'l Joint Research
• [Presentation] Historical Auroral Drawings: Their Value for Scientific Discussion (2017)
  • Author(s): Hayakawa, H., Mitsuma, Y., Ebihara, Y., Tamazawa, H., Hattori, K., Watanabe, Y., Nakanishi, I., Kawamura, A.D., Iwahashi, K., Isobe, H.
  • Organizer: The Symposium on Polar Science
  • Int'l Joint Research
• [Presentation] Downward Influence of QBO-like Oscillation to Moist Convection in a Two-Dimensional Minimal Framework (2017)
  • Author(s): 余田 成男, Bui Hoang-Hai,西本 絵梨子
  • Organizer: JpGU-AGU Joint Meeting 2017
  • Int'l Joint Research / Invited
• [Presentation] Stratospheric Influence on Moist Convection in a Minimal Model of QBO-like Oscillation in a Stratsphere-Troposphere Coupled System (2017)
  • Author(s): 余田 成男, Bui Hoang-Hai,西本 絵梨子
  • Organizer: 21st Conference on Atmospheric and Oceanic Fluid Dynamics 19th Conference on Middle Atmosphere,
  • Int'l Joint Research / Invited
• [Presentation] General introduction to tropical atmospheric science” (2017)
  • Author(s): 余田 成男
  • Organizer: The 3rd JSPS Core-to-Core SEASTAS,
  • Int'l Joint Research
• [Presentation] Downward Influence of QBO-Like Oscillation to Convection in a Two Dimensional Minimal Framework (2017)
  • Author(s): Shigeo Yoden, Bui H.-H., and E. Nishimoto
  • Organizer: AOGS 14th Annual Meeting at Suntec Singapore Convention & Exhibition Centre
  • Int'l Joint Research
• [Presentation] Stratospheric Influence on Moist Convection in a Minimal Model of QBO-like Oscillation (2017)
  • Author(s): Shigeo Yoden, Bui H.-H., and E. Nishimoto
  • Organizer: IAPSO-IAMAS-IAGA Joint Assembly at CTICC
  • Int'l Joint Research
• [Presentation] Stratosphere-Troposphere Two-Way Dynamical Coupling in the Tropics (2017)
  • Author(s): Shigeo Yoden, Bui H.-H., and E. Nishimoto
  • Organizer: International Symposium on Earth-Science Challenges (ISEC)
  • Int'l Joint Research / Invited
• [Presentation] An emerging SPARC activity, SATIO-TCS: Stratospheric And Tropospheric Influences On Tropical Convective Systems (2017)
  • Author(s): Shigeo Yoden, Marvin A. Geller, and Peter H. Haynes,
  • Organizer: WCRP/SPARC Local Workshop , Korea Polar Research Institute
  • Int'l Joint Research / Invited
• [Presentation] Stratosphere-troposphere two-way dynamical coupling in the tropics through organization of moist convective systems" (2017)
  • Author(s): Shigeo Yoden
  • Organizer: Asian Conference on Meteorology (ACM) 2017
  • Int'l Joint Research / Invited
• [Presentation] Thorough survey of downward influence of the stratospheric QBO on the troposphere (2017)
  • Author(s): Eriko Nishimoto, and Shigeo Yoden
  • Organizer: Asian Conference on Meteorology (ACM) 2017
  • Int'l Joint Research
• [Presentation] Stratosphere-Troposphere Two-Way Dynamical Coupling in the Tropics through Organizations of Moist Convective Systems (2017)
  • Author(s): Shigeo Yoden, Bui H.-H., and E. Nishimoto
  • Organizer: Sixth WMO International Workshop on Monsoons(IWM-6）
  • Int'l Joint Research / Invited
• [Presentation] 深い湿潤対流に対する環境流れ場の鉛直構造の影響に関するパラメータ走査実験 (2017)
  • Author(s): 余田 成男, Hoang-Hai Bui,西本 絵梨子
  • Organizer: 日本気象学会ワークショップ2017第19回非静力学モデルに関するワークショップ
• [Presentation] G.S. of Science + Research Institute for Sustainable Humanosphere (2017)
  • Author(s): Shigeo Yoden
  • Organizer: nternational Symposium on Utilization of Field Sites in Research and Education (FREE2017)
  • Int'l Joint Research / Invited
• [Book] The Global Monsoon System" World Scientific Series on Asia-Pacific Weather and Climate (2017)
  • Author(s): Shigeo Yoden, Shigenori Otsuka, Nurjanna Joko Trilaksono, and Tri Wahyu Hadi
  • Total Pages: 14
  • Publisher: World Scientific Publishing Co
• [Remarks] 京都大学大学院理学研究科附属天文台
  • URL: https://www.kwasan.kyoto-u.ac.jp
• [Funded Workshop] 第2回PSTEP 国際シンポジウム（PSTEP-2）、“ Toward the Solar-Terrestrial Environment Prediction as Science and Social Infrastructure ” (2017)