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北方圏における地球環境変動に関する共同研究

Research Project

Project/Area Number 08045020
Research Category

Grant-in-Aid for international Scientific Research

Allocation TypeSingle-year Grants
SectionUniversity-to-University Cooperative Research
Research Field Meteorology/Physical oceanography/Hydrology
Research InstitutionTohoku University

Principal Investigator

田中 正之  東北大学, 大学院・理学研究科, 教授 (90004340)

Co-Investigator(Kenkyū-buntansha) SENTMAN D.D.  アラスカ大学, 地球物理学研究所, 助教授
大竹 政和  東北大学, 大学院・理学研究科, 教授 (60203816)
坂野井 健  東北大学, 大学院・理学研究科, 助手 (80271857)
佐藤 春夫  東北大学, 大学院・理学研究科, 教授 (80225987)
福西 浩  東北大学, 大学院・理学研究科, 教授 (90099937)
吉本 和生  東北大学, 大学院・理学研究科, 助手 (10281966)
長谷川 昭  東北大学, 理学部, 教授 (40004460)
高橋 幸弘  東北大学, 大学院・理学研究科, 助手 (50236329)
WYSS M.  アラスカ大学, 地球物理学研究所, 教授
MUCNUTT S.R.  アラスカ大学, 地球物理学研究所, 教授
STRINGER W.J  アラスカ大学, 地球物理学研究所, 助教授
BISWAS N.N.  アラスカ大学, 地球物理学研究所, 教授
HANSEN R.A.  アラスカ大学, 地球物理学研究所, 教授
SHAW G.E.  アラスカ大学, 地球物理学研究所, 教授
BENNER R.L.  アラスカ大学, 地球物理学研究所, 教授
STAMNES K.  アラスカ大学, 地球物理学研究所, 教授
田口 真  国立極地研究所, 南極圏環境モニタリング研究センター, 助教授 (70236404)
AKASOFU S.ーI  アラスカ大学, 地球物理学研究所, 所長
DEEHR C.S.  アラスカ大学, 地球物理学研究所, 教授
青木 周司  東北大学, 理学部, 助教授 (00183129)
早坂 忠裕  東北大学, 理学部, 助教授 (40202262)
川村 宏  東北大学, 理学部, 教授 (40169769)
中澤 高清  東北大学, 理学部, 教授 (30108451)
SMITH R.W.  アラスカ大学, 地球物理学研究所, 教授
渡部 重十  東北大学, 大学院・理学研究科, 助教授 (90271577)
花輪 公雄  東北大学, 大学院・理学研究科, 教授 (40142921)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥6,800,000 (Direct Cost: ¥6,800,000)
Fiscal Year 1998: ¥2,400,000 (Direct Cost: ¥2,400,000)
Fiscal Year 1997: ¥2,200,000 (Direct Cost: ¥2,200,000)
Fiscal Year 1996: ¥2,200,000 (Direct Cost: ¥2,200,000)
Keywords北極圏 / 地球環境 / オーロラ / オゾン層 / 地震観測 / アラスカ / 雷放電 / 北方圏 / 地球環境変動
Research Abstract

東北大学理学部・同理学研究科とアラスカ大学フェアバンクス校との部局間協定にもとづき、本年度の北方圏における地球環境変動に関する共同研究は、(1)オーロラと超高層大気の研究、(2)雷放電発光現象の研究、(3)成層圏オゾン層の研究、(4)地震・火山の研究を中心に行なった。まず、(1)オーロラと超高層大気の研究では、通信総合研究所が開発したプロトンオーロライメージャーを1999年2月にアラスカ大学地球物理学研究所ポーカーフラット観測所に設置し観測を行った。さらに昼側カスプ領域のオーロラのロケット・地上同時観測のために東北大学のプロトンオーロライメージャーを1月にノルウェー・スバールバルに設置し、共同観測を実施した。これらの観測から得られたデータの共同解析を現在行っている。(2)雷放電発光現象の研究では、1998年7月〜8月にコロラドでスプライト・エルブス発光現象の共同観測を実施した他、1998年5月にアラスカ大学より1名を招へいし、1997年度に得られた雷発光現象データの共同解析を行った。(3)成層圏オゾン層の研究では、1997年2月〜5月の間にポーカーフラットで東北大学のレーザーヘテロダイン分光計を用いて実施したオゾン、一酸化二窒素、メタン観測のデータとADEOS衛星データの比較を行った。(4)地震・火山の研究では、アラスカ大学地震観測ネットワークで得られたデータと東北大学地震観測ネットワークで得られたデータの共同解析を実施し、発震メカニズムや地震予知のための研究を行った。

Report

(3 results)
  • 1998 Annual Research Report
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (36 results)

All Other

All Publications (36 results)

  • [Publications] Nakamura,T.,T.Tsuda,H,Miyagawa,Y.Matsushita,H.Fukunishi,Y.Takahashi,Y.Yamada: "Propagation directions of gravity wave patterns observed in OH CCD images during the SEEK campaign" Geophys.Res.Lett.25・11. 1793-1796 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kawamura,H.,P.M.Wu: "Formation mechanism of the Japan Sea Proper Water in the flux center off Vladivostok" J.Geophys.Res.103. 21611-21622 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Matsumoto,S.,K.obara,A.Hasegawa: "Imaging P-wave scatterer distribution in the focal area of the 1995 M7.2 Hyogo-ken Nanbu(Kobe)Earthquake" Geophys.Res.Let.25. 1439-1442 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Inui,T.,K.Takeuchi,K.Hanawa: "A numerical investigation of the subductyion process in response to an abrupt intensification of the westerlies" J.Phys.Oceanogr. (In press). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Yasuda,T.,K.Hanawa: "Composite analysis of North Pacific subtropical mode water properties with respect to the strength of the wintertime East Asian monsoon" J.Oceanogr.(In Press). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hayasaka,T.,Y.Meguro,Y.Sasano,T.Takamura,: "Stratification and size distribution of aerosols retrieved from simultaneous measurements with lidar,sunphotometer and aureolemeter" Appl.Opt.37. 961-970 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Hayasaka,T.,Y.Meguro,Y.Sasano,T.Takamura: "Optical Properties of Aerosols Derived from Simultaneous Measurements with Lidar,Sunphotometer and Aureolemeter" Appl.Opt.(In Press). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Kuji,M.,T.Hayasaka,N.Kikuchi,T.Nakajima,M.Tanaka: "The retrieval of the optical thickness and effective particle radius of low-level marine clouds by NOAA/AVHRR data" J.Appl.Meteor.(In Press). (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Akasofu,S.-I.,Y.Kamide: "Toward a closer integration of magnetospheric research:magnetospheric currents inferred from ground-based magnetic data" J.Geophys.Res.103・A7. 14939-14958 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Shaw,G.E.,R.L.Benner,W.Cantrell,A.D.Clarke: "On the regulation of climate:a sulfate particle feedback loop involving deep convection" Clim.Change. 39・1. 23-33 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Wyss,M.,A.H.Martirosyan: "Seismic quiescence before the M7,1988,Spitak earthquake,Armenia" Geophys.J.Int.134・2. 329-340 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Garces,M.A.,R.A.Hansen: "Waveform analysis of seismoacoustic signals radiated during the fall 1996 eruption of Pavlof volcano,Alaska" Geophys.Res.Lett.25・7. 1051-1054 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Wescott,E.M.,D.D.Sentman,M.J.Heavner,D.L.Hampton,W.A.Lyons,T.Nelson: "Observations of columniform' sprites" J.Atmos.Sol.-Terr.Phys.60・7-9. 733-740 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Wescott,E.M.,D.D.Sentman,M.J.Heavner,D.L.Hampton,O.H.Vaughan Jr.: "Blue jets:their relationship to lightning and very large hailfall,and their physical mechanisms for their production" J.Atmos.Sol.-Terr.Phys.30・7-9. 713-724 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Deehr,C.S.,D.A.Lorentzen,F.Sigernes,R.W.Smith: "Dayside auroral hydrogen emission as an aeronomic signature of magnetospheric boundary layer processes" Geophys.Res.Lett.25・12. 2111-2114 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Smith,R.W.,G.Hernandez,R.G.Roble,P.L.Dyson,M.Conde,R.Crickmore,M.Jarvis: "Observation and simulations of winds and temperatures in the Antarctic thermosphere for August 2-10,1992" J.Geophys.Res.103-A5. 9473-9480 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] T.Nakazawa, S.Morimoto, S.Aoki and M.Tanaka: "Temporal and spatial variations of the carbon isotopic ratio of atmospheric carbon dioxide in the western Pacific region" Journal of Geophysical Research. 102. 1271-1285 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yoshimoto, K., H.Sato and M.ohtake: "Short-wavelength crustal heterogeneities in the Nikko area, central Japan, revealed from the three-component seismogram envelope analysis" Phys. Earth Planet. Inter.104. 63-73 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Yoshimoto, K., H.Sato and M.Ohtake: "Three-component seismogram envelope synthesis in randomly inhomogeneous semi-infinite media based on the single scattering approximation" Phys. Earth Planet. Inter.104. 37-61 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Nakahara, H., T.Nishimura, H.Sato, and M.Ohtake: "Seismogram envelope inversion for the spatial distribution of high-frequency energy radiation on the earthquake fault : Application to the 1994 far east off Sanriku earthquake (Mw=7.7)" J. Geophys. Res.103. 855-867 (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] Hasegawa, A., A.Yamamoto, M.Umino, S.Miura, S.Horiuchi, D.Zhao, and H.Sato: "Seismic activity and deformation process of the overriding plate in the northeastern Japan subduction zone" Tectonophysics. (subnitted).

    • Related Report
      1997 Annual Research Report
  • [Publications] H.kawamura and P.Wu: "Formation mechanizm of the Japan sea proper water in the flux surface off Vladivostok" Journal of Geophysical Research. (in Press).

    • Related Report
      1997 Annual Research Report
  • [Publications] Suga, T., Y.Takei and K.Hanawa: "Thermostad distribution in the North Pacefic subtropical gyre : the Subtropical Mode Water and the Central Mode Water." J.Phys.Oceanogr.27. 140-152 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] Morioka, A., F.Tsuchiyama and H.Misawa: "Modulation of jovian electrons by the solar wind" Adv. Space Res.20. 205-208 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] S.-I.Akasofu: "Search for the ″unknown″ quantity in the solar sind : A personal account" Journal of Geophysical Research. 101. 10531-10540 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] A.T.Weatherwax, J.LaBelle, M.L.Trimpi, R.A.Trenmann, J.Minow, C.Deehr: "Statisfical and case studies of radio emissions observed near 2fce and 3fce in the auroral zone" Journal of Geophysical Research. 100. 7745-7757 (1995)

    • Related Report
      1997 Annual Research Report
  • [Publications] D.D.Sentman, D.A.Ehring: "Midlatitude defection of ELF whistlers" Journal of Geophysical Research. 99. 2183-2190 (1994)

    • Related Report
      1997 Annual Research Report
  • [Publications] D.Gillard, M.Wyss, P.Okubo: "Type of faulting and orientation of stress and strain as a function of space and time in Kilauea's south flank, Hawaii" Journal of Geophysical Research. 101. 16025-16042 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] C.M.Jodwalis, R.L.Benner: "Sulfur gas fluxes and horizontal in homogeneities in the marine boundary layer" Journal of Geophysical Research. 101. 4393-4401 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] D.M.Suszcynsky, R.Roussel-Dupre, G.Shaw: "Ground-Based search for X rays generated by thunderstorms and lightning" Journal of Geophysical Research. 101. 23505-23516 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] D.M.Suszcynsky, R.Roussel-Dupre, G.Shaw: "Ground-Based search for X rays generated by thunderstorms and lightning" Journal of Geophysical Research. 101. 23505-23516 (1996)J.Slusser, K.Hammond, A.Kylling, K.Stamnes, L.Perliski, A.Dahlback, D.Anderson, R.Demajistre:

    • Related Report
      1997 Annual Research Report
  • [Publications] "Comparison of air mass computations" Journal of Geophysical Research. 101. 24655-24659 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] W.Sun, Y.Kamide, S.-I Akasofu: "Substorm current in the equatorial plane of the magnetosphere declared from ground-based magnetometer chain records" Journal of Geophysical Research. 101. 24655-24659 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] G.Hernandez, J.M.Forbes, R.W.Smith, Y.Portnyagin, J.F.Booth, N.Makarov: "Simultaneous mesospheric wind measurements near South Pole by optical and meteor redar methods" G.R.L.23. 1079-1082 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] P.M.Kintner, J.Bonnell, R.Arnoldy, K.Lyneh, C.Pollock, T.Moore, J.Holtet, C.Deehr, H.Stenbaek-Nielsen, R.Smith J.Olson J.Moen: "The SCIFER experiment" G.R.L.23. 1865-1868 (1996)

    • Related Report
      1997 Annual Research Report
  • [Publications] Fukunishi,H.,Y.Takahashi,M.Kubota,K.Sakanoi,U.S.Inan,and W.A.Lyons.: "Elves : lighting-induced transient luminous events in the lower ionosphere" Geophysical Research Letters. 23. 2157-2160 (1996)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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