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Seismic and geo-electromagnetic observations of core and mantle

Planned Research

Project AreaInteraction and Coevolution of the Core and Mantle: Toward Integrated Deep Earth Science
Project/Area Number 15H05832
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Science and Engineering
Research InstitutionJapan Agency for Marine-Earth Science and Technology

Principal Investigator

Tanaka Satoru  国立研究開発法人海洋研究開発機構, 海域地震火山部門(火山・地球内部研究センター), グループリーダー (60281961)

Co-Investigator(Kenkyū-buntansha) 川勝 均  東京大学, 地震研究所, 教授 (60242153)
ヘルフリック ジョージ  東京工業大学, 地球生命研究所, 研究員 (80747163)
金嶋 聰  九州大学, 理学研究院, 教授 (80202018)
大滝 壽樹  国立研究開発法人産業技術総合研究所, 地質調査総合センター, 主任研究員 (00356643)
清水 久芳  東京大学, 地震研究所, 教授 (70302619)
竹内 希  東京大学, 地震研究所, 准教授 (90313048)
河合 研志  東京大学, 大学院理学系研究科(理学部), 准教授 (20432007)
ハウザー クリスティーン  東京工業大学, 地球生命研究所, 特任助教 (20723737)
山本 裕二  高知大学, 教育研究部総合科学系複合領域科学部門, 教授 (00452699)
松島 政貴  東京工業大学, 理学院, 助教 (20242266)
Project Period (FY) 2015-06-29 – 2020-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥178,750,000 (Direct Cost: ¥137,500,000、Indirect Cost: ¥41,250,000)
Fiscal Year 2019: ¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2018: ¥35,360,000 (Direct Cost: ¥27,200,000、Indirect Cost: ¥8,160,000)
Fiscal Year 2017: ¥33,410,000 (Direct Cost: ¥25,700,000、Indirect Cost: ¥7,710,000)
Fiscal Year 2016: ¥45,760,000 (Direct Cost: ¥35,200,000、Indirect Cost: ¥10,560,000)
Fiscal Year 2015: ¥48,360,000 (Direct Cost: ¥37,200,000、Indirect Cost: ¥11,160,000)
Keywordsマントル最下部 / 外核 / 内核 / 地震学 / 地球電磁気学 / 地震観測 / 下部マントル / 内核最上部 / 核ーマントル / 地震波 / 地球電磁気 / 古地磁気 / 地震 / 電磁気 / CMB / 外核最上部 / 外核最下部 / ICB / マントル / 核-マントル境界
Outline of Final Research Achievements

We have constructed a mobile broadband seismic network that spans the whole of Thailand, and contributed to the elucidation of the fine structure of the lowermost mantle and the unexplored regions of the inner core. As a notable achievement, we integrated the data from the seismic network in Thailand with that from the existing networks in the surrounding areas, and clarified that the lowermost mantle beneath the western Pacific mantle, which was previously regarded as a large seismic low-velocity province, is a mixture of subducted plates and small-scale upwellings. Using data from the seismic network in Thailand, the uppermost inner core below the Arctic region was analyzed intensively for the first time, and it was clarified that the region belongs to the western hemisphere. In addition, we found that seismic velocity heterogeneity exists in the lowermost outer core and that the boundary of the hemispheric inner core has a transition zone with a width of about 600 km.

Academic Significance and Societal Importance of the Research Achievements

新規に得られたデータや既存の公開・非公開データを通じて、核―マントル境界や地球核において従来にない詳細な地震学的描像や未踏査地域の情報を得ることに成功し、本新学術領域を構成する多くの計画研究班との連携を通じ、新しい地球観の創生に貢献した。特に西太平洋下のマントル最下部において巨大な低速度体と考えられていた領域の内部に微細構造を見出し、近接した下降流・上昇流の分布は熱的な影響によって生成されていること示唆した。
さらに、タイ国において構築した機動的広域地震観測網の運用を通じて、国際共同研究を推進するだけでなく、タイにおける地震学者の育成や学生の教育に貢献した。

Report

(6 results)
  • 2020 Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (216 results)

All 2021 2020 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (24 results) Journal Article (44 results) (of which Int'l Joint Research: 21 results,  Peer Reviewed: 43 results,  Open Access: 16 results,  Acknowledgement Compliant: 3 results) Presentation (145 results) (of which Int'l Joint Research: 67 results,  Invited: 9 results) Book (1 results) Remarks (2 results)

  • [Int'l Joint Research] マヒドン大学(タイ)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] ユタ大学(米国)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] モンペリエ大学(フランス)

    • Related Report
      2019 Annual Research Report
  • [Int'l Joint Research] マヒドン大学(タイ)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 国立地球物理学研究所/地震学研究所(インド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] オースラリア国立大学(オーストラリア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] ミネソタ大学/コロンビア大学/ミシガン大学(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] 中国科学院/香港大学(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] マヒドン大学理学部(タイ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] インド国立地球物理研究所(インド)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] オーストラリア国立大学(オーストラリア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] 中国科学院(中国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] 台湾中央研究院(中華民国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] マヒドン大学理学部(タイ)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] インド国立地球物理研究所(インド)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] オースラリア国立大学地球科学研究所(オーストラリア)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] 中国科学院(中国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] 台湾中央研究院(中華民国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] マヒドン大学理学部(タイ)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] ユタ大学(米国)

    • Related Report
      2015 Annual Research Report
  • [Int'l Joint Research] オーストラリア国立大学(オーストラリア)

    • Related Report
      2015 Annual Research Report
  • [Journal Article] Seismic velocity structure of the upper inner core in the north polar region2021

    • Author(s)
      Ohtaki Toshiki、Tanaka Satoru、Kaneshima Satoshi、Siripunvaraporn Weerachai、Boonchaisuk Songkhun、Noisagool Sutthipong、Kawai Kenji、Kim Taewoon、Suzuki Yuki、Ishihara Yasushi、Miyakawa Koji、Takeuchi Nozomu
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 311 Pages: 106636-106636

    • DOI

      10.1016/j.pepi.2020.106636

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Effect of core electrical conductivity on core surface flow models2020

    • Author(s)
      Matsushima Masaki
    • Journal Title

      Earth, Planets and Space

      Volume: 72 Issue: 1

    • DOI

      10.1186/s40623-020-01269-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] High-resolution 3-D S-velocity structure in the D" region at the western margin of the Pacific LLSVP: Evidence for small-scale plumes and paleoslabs2020

    • Author(s)
      Suzuki Yuki、Kawai Kenji、Geller Robert J.、Tanaka Satoru、Siripunvaraporn Weerachai、Boonchaisuk Songkhun、Noisagool Sutthipong、Ishihara Yasushi、Kim Taewoon
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 307 Pages: 106544-106544

    • DOI

      10.1016/j.pepi.2020.106544

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Anisotropy at the Inner Core Boundary2019

    • Author(s)
      Helffrich G.、Mainprice D.
    • Journal Title

      Geophysical Research Letters

      Volume: 46 Issue: 21 Pages: 11959-11967

    • DOI

      10.1029/2019gl083644

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The chemical case for Mercury mantle stripping2019

    • Author(s)
      Helffrich George、Brasser Ramon、Shahar Anat
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 6 Issue: 1

    • DOI

      10.1186/s40645-019-0312-z

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Paleomagnetic study of basaltic rocks from Baengnyeong Island, Korea: efficiency of the Tsunakawa?Shaw paleointensity determination on non-SD-bearing materials and implication for the early Pliocene geomagnetic field intensity2019

    • Author(s)
      Ahn Hyeon-Seon、Yamamoto Yuhji
    • Journal Title

      Earth, Planets and Space

      Volume: 71 Issue: 1

    • DOI

      10.1186/s40623-019-1107-6

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Melting at the Edge of a Slab in the Deepest Mantle2019

    • Author(s)
      Thorne Michael S.、Takeuchi Nozomu、Shiomi Katsuhiko
    • Journal Title

      Geophysical Research Letters

      Volume: 46 Issue: 14 Pages: 8000-8008

    • DOI

      10.1029/2019gl082493

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Seismic scatterers in the lower mantle near subduction zones2019

    • Author(s)
      Satoshi Kaneshima
    • Journal Title

      Geophysical Journal International

      Volume: 218 Issue: Supplement_1 Pages: 1873-1891

    • DOI

      10.1093/gji/ggz241

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Sharpness of the hemispherical boundary in the inner core beneath the northern Pacific2019

    • Author(s)
      Iritani Ryohei、Kawakatsu Hitoshi、Takeuchi Nozomu
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 527 Pages: 115796-115796

    • DOI

      10.1016/j.epsl.2019.115796

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Earth's rugged lower mantle2019

    • Author(s)
      Houser Christine
    • Journal Title

      Science

      Volume: 363 Issue: 6428 Pages: 696-697

    • DOI

      10.1126/science.aaw4601

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 3-D S-velocity structure of the mantle transition zone beneath Central America and the Gulf of Mexico inferred using waveform inversion2019

    • Author(s)
      Anselme F. E. Borgeaud, Kenji Kawai, Robert J. Geller
    • Journal Title

      Journal of Geophysical Research: Solid Earth

      Volume: 124 Issue: 9 Pages: 9664-9681

    • DOI

      10.1029/2018jb016924

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] First‐principles Investigation of Frictional Characteristics of Brucite: An Application to Its Macroscopic Frictional Characteristics, Journal of Geophysical Research2019

    • Author(s)
      Hanaya Okuda , Kenji Kawai, Hiroshi Sakuma
    • Journal Title

      Journal of Geophysical Research: Solid Earth

      Volume: 124 Issue: 10 Pages: 10423-10443

    • DOI

      10.1029/2019jb017740

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Thai Seismic Array Project2019

    • Author(s)
      Tanaka S. Siripunvaraporn W. Boonchaisuk S. Noisagool S. Kim T. Kawai K. Suzuki Y. Ishihara Y. Iritani R. Miyakawa K. Takeuchi N. Kawakatsu H.
    • Journal Title

      東京大学地震研究所彙報

      Volume: 94 Pages: 1-11

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Topography of the western Pacific LLSVP constrained by S-wave multipathing2019

    • Author(s)
      Roy Sunil K、Takeuchi Nozomu、Srinagesh D、Ravi?Kumar M、Kawakatsu Hitoshi
    • Journal Title

      Geophysical Journal International

      Volume: 218 Issue: 1 Pages: 190-199

    • DOI

      10.1093/gji/ggz149

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Radial and Azimuthal Anisotropy Tomography of the NE Japan Subduction Zone: Implications for the Pacific Slab and Mantle Wedge Dynamics2018

    • Author(s)
      Ishise Motoko、Kawakatsu Hitoshi、Morishige Manabu、Shiomi Katsuhiko
    • Journal Title

      Geophysical Research Letters

      Volume: 45 Issue: 9 Pages: 3923-3931

    • DOI

      10.1029/2018gl077436

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Seismological evidence for laterally heterogeneous lowermost outer core of the Earth2018

    • Author(s)
      T. Ohtaki, S. Kaneshima, H. Ichikawa, T. Tsuchiya
    • Journal Title

      Journal of Geophysical Research

      Volume: 123 Issue: 12 Pages: 10903-10917

    • DOI

      10.1029/2018jb015857

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Paleointensity Study on the Holocene Surface Lavas on the Island of Hawaii Using the Tsunakawa?Shaw Method2018

    • Author(s)
      Yamamoto Yuhji、Yamaoka Ryo
    • Journal Title

      Frontiers in Earth Science

      Volume: 6 Pages: 48-48

    • DOI

      10.3389/feart.2018.00048

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] An initial case study to deconvolve natural remanent magnetization of a continuous paleomagnetic sample using the software UDECON2018

    • Author(s)
      Yamamoto Y., Yamazaki T., Kanamatsu T.
    • Journal Title

      Earth Planets Space

      Volume: 70 Issue: 1 Pages: 160-160

    • DOI

      10.1186/s40623-018-0931-4

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Effects of redetermination of source time functions on the 3-D velocity structure inferred by waveform inversion2018

    • Author(s)
      Yamaya Lina、Borgeaud Anselme F.E.、Kawai Kenji、Geller Robert J.、Konishi Kensuke
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 282 Pages: 117-143

    • DOI

      10.1016/j.pepi.2018.04.012

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] On the geomagnetic secular variation in the Pacific region2018

    • Author(s)
      Yukutake Takesi、Shimizu Hisayoshi
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 283 Pages: 122-130

    • DOI

      10.1016/j.pepi.2018.08.008

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Relative Paleointensity and Inclination Anomaly Over the Last 8?Myr Obtained From the Integrated Ocean Drilling Program Site U1335 Sediments in the Eastern Equatorial Pacific2018

    • Author(s)
      Yamazaki Toshitsugu、Yamamoto Yuhji
    • Journal Title

      Journal of Geophysical Research: Solid Earth

      Volume: 123 Issue: 9 Pages: 7305-7320

    • DOI

      10.1029/2018jb016209

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A generating process of geomagnetic drifting field2018

    • Author(s)
      Yukutake Takesi、Shimizu Hisayoshi
    • Journal Title

      Earth, Planets and Space

      Volume: 70 Issue: 1 Pages: 145-145

    • DOI

      10.1186/s40623-018-0908-3

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 外核F層の速度2018

    • Author(s)
      大滝 壽樹,金嶋聡
    • Journal Title

      月刊地球

      Volume: 40 Pages: 365-370

    • Related Report
      2018 Annual Research Report
  • [Journal Article] A Sharp Structural Boundary in Lowermost Mantle Beneath Alaska Detected by Core Phase Differential Travel Times for the Anomalous South Sandwich Islands to Alaska Path2018

    • Author(s)
      Long Xin、Kawakatsu Hitoshi、Takeuchi Nozomu
    • Journal Title

      Geophysical Research Letters

      Volume: 45 Issue: 1 Pages: 176-184

    • DOI

      10.1002/2017gl075685

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Seismic scatterers in the mid-lower mantle beneath Tonga-Fiji2018

    • Author(s)
      Kaneshima Satoshi
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 274 Pages: 1-13

    • DOI

      10.1016/j.pepi.2017.09.007

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Isotopic signature of core-derived SiO22018

    • Author(s)
      Helffrich, G., Shahar, A., Hirose K.
    • Journal Title

      American Mineralogist

      Volume: - Issue: 7 Pages: 1161-1164

    • DOI

      10.2138/am-2018-6482ccbyncnd

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-pressure phase relation of KREEP basalts: A clue for finding the lost Hadean crust?2018

    • Author(s)
      Greaux S., Nishi M., Tateno S., Kuwayama Y., Hirao N,, Kawai K., Maruyama S., Irifune T.
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 274 Pages: 184-194

    • DOI

      10.1016/j.pepi.2017.12.004

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A finite strain approach to thermal expansivity’s pressure dependence2017

    • Author(s)
      Helffrich George
    • Journal Title

      American Mineralogist

      Volume: 102 Issue: 8 Pages: 1690-1695

    • DOI

      10.2138/am-2017-6007

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of intrinsic attenuation in the oceanic lithosphere-asthenosphere system2017

    • Author(s)
      Takeuchi Nozomu、Kawakatsu Hitoshi、Shiobara Hajime、Isse Takehi、Sugioka Hiroko、Ito Aki、Utada Hisashi
    • Journal Title

      Science

      Volume: 358 Issue: 6370 Pages: 1593-1596

    • DOI

      10.1126/science.aao3508

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Imaging paleoslabs in the D″ layer beneath Central America and the Caribbean using seismic waveform inversion2017

    • Author(s)
      Borgeaud Anselme F. E.、Kawai Kenji、Konishi Kensuke、Geller Robert J.
    • Journal Title

      Science Advances

      Volume: 3 Issue: 11 Pages: 1602700-1602700

    • DOI

      10.1126/sciadv.1602700

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Array analyses of SmKS waves and the stratification of Earth's outermost core2017

    • Author(s)
      Satoshi Kaneshima
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 印刷中 Pages: 234-246

    • DOI

      10.1016/j.pepi.2017.03.006

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Core-exsolved SiO2 dispersal in the Earth's mantle2017

    • Author(s)
      Helffrich, G., Ballmer, M., Hirose, K.
    • Journal Title

      Journal of Geophysical Research, Solid Earth

      Volume: 123 Issue: 1 Pages: 176-188

    • DOI

      10.1002/2017jb014865

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] High-pressure phase transitions of anorthosite crust in the Earth’s deep mantle2017

    • Author(s)
      Nishi M., Greaux S., Tateno S., Kuwayama Y., Kawai K., Irifune T., Maruyama S.
    • Journal Title

      Geoscience Frontiers

      Volume: in press Issue: 6 Pages: 1-13

    • DOI

      10.1016/j.gsf.2017.10.002

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Persistence of strong silica-enriched domains in the Earth’s lower mantle2017

    • Author(s)
      M.D. Ballmer, C. Houser, J. Hernlund, R. Wentzcovitch, and K. Hirose
    • Journal Title

      Nature Geoscience

      Volume: 10 Issue: 3 Pages: 236-240

    • DOI

      10.1038/ngeo2898

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] SiO2 crystallization and compositional evolution of the Earth’s core2017

    • Author(s)
      K. Hirose, G. Morard, R. Sinmyo, K. Umemoto, J. Hernlund, G. Helffrich, and S. Labrosse
    • Journal Title

      Nature

      Volume: 543 Issue: 7643 Pages: 99-102

    • DOI

      10.1038/nature21367

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Differential Monte Carlo method for computing seismogram envelopes and their partial derivatives2016

    • Author(s)
      Takeuchi, N.
    • Journal Title

      Journal of Geophysical Research, Solid Earth

      Volume: 121 Issue: 5 Pages: 2428-3444

    • DOI

      10.1002/2015jb012661

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Global seismic data reveal little water in the mantle transition zone2016

    • Author(s)
      Houser C.
    • Journal Title

      Earth and Planetary Science Letters

      Volume: 448 Pages: 94-101

    • DOI

      10.1016/j.epsl.2016.04.018

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Finite frequency effects on apparent S-wave splitting in the D” layer: comparison between ray theory and full-wave synthetics2016

    • Author(s)
      Borgeaud, A.F.E., K. Konishi, K. Kawai, R.J. Geller
    • Journal Title

      Geophysical Journal International

      Volume: 207 Issue: 1 Pages: 12-28

    • DOI

      10.1093/gji/ggw254

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Waveform inversion for 3-D shear velocity structure of D” beneath the Northern Pacific: Possible evidence for a remnant slab and a ‘passive plume’2016

    • Author(s)
      Suzuki, Y., K. Kawai, K. Konishi, A.F.E. Borgeaud, R.J. Geller
    • Journal Title

      Earth, Planets and Space

      Volume: 68 Issue: 1 Pages: 198-198

    • DOI

      10.1186/s40623-016-0576-0

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] A new fifth parameter for transverse isotropy II: partial derivatives2016

    • Author(s)
      Kawakatsu, H.
    • Journal Title

      Geophys. Jour. Inter.

      Volume: 206 Issue: 1 Pages: 360-367

    • DOI

      10.1093/gji/ggw152

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] On the latitude dependence of drift velocity of the geomagnetic main field and its secular variation2016

    • Author(s)
      Yukutake Takesi、Shimizu Hisayoshi
    • Journal Title

      Physics of the Earth and Planetary Interiors

      Volume: 257 Pages: 28-39

    • DOI

      10.1016/j.pepi.2016.05.002

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Drifting and standing fields in the geomagnetic field for the past 400 years2015

    • Author(s)
      Yukutake, T. and H. Shimizu
    • Journal Title

      Physics of Earth and Planetary Interior

      Volume: 248 Pages: 63-72

    • DOI

      10.1016/j.pepi.2015.08.003

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Complex inner core boundary from frequency characteristics of the reflection coefficients of PKiKP waves observed by Hi-net2015

    • Author(s)
      S. Tanaka and H. Tkalcic
    • Journal Title

      Progress in Earth and Planetary Science

      Volume: 2 Issue: 1 Pages: 34-34

    • DOI

      10.1186/s40645-015-0064-3

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Independent estimate of velocity structure of Earth's lowermost outer core beneath the northeast Pacific from PKiKP-PKPbc differential travel time and dispersion in PKPbc2015

    • Author(s)
      T. Ohtaki & S. Kaneshima
    • Journal Title

      Journal of Geophysical Research

      Volume: 120 Issue: 11 Pages: 1-15

    • DOI

      10.1002/2015jb012140

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Presentation] Thai Seismic Array (TSAR) Project2019

    • Author(s)
      Satoru Tanaka
    • Organizer
      International Workshop for Geophysical observation in Thailand _ Present and Future _
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Azimuthal anisotropy in the lowermost mantle beneath Philippine from ScS_S travel times2019

    • Author(s)
      Satoru Tanaka
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Azimuthal variation of ScS_S differential travel times beneath Philippine: Implications for anisotropy in the lowermost mantle2019

    • Author(s)
      Satoru Tanaka
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismic structure near the inner core boundary determined by using TSAR network2019

    • Author(s)
      Toshiki Ohtaki
    • Organizer
      International Workshop for Geophysical observation in Thailand _ Present and Future _
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Lateral heterogeneity in the lowermost outer core (F layer) of the Earth revealed by seismic analyses2019

    • Author(s)
      Toshiki Ohtaki
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Seismic structure near the inner core boundary in the north polar region2019

    • Author(s)
      Toshiki Ohtaki
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ScSリバーバレーション解析による海洋上部マントルにおけるG不連続面の推定について2019

    • Author(s)
      丸山 純平、川勝 均、竹内 希
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Sharpness of the hemispherical boundary in the inner core beneath the northern Pacific2019

    • Author(s)
      Ryohei Iritani, Hitoshi Kawakatsu, Nozomu Takeuchi
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] A low-velocity layer atop the mantle transition zone beneath Mexican gulf inferred from triplicated P and S waves2019

    • Author(s)
      XIN LONG, Hitoshi Kawakatsu, Nozomu Takeuchi
    • Organizer
      SSJ2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] ScS多重反射の波形インバージョンによる上部マントル不連続面の推定に ついて2019

    • Author(s)
      丸山 純平、川勝 均、竹内 希
    • Organizer
      SSJ2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] New progress in building Paci%c Array: an international collaboration to image mantle dynamic processes across the PaciFc basin2019

    • Author(s)
      Hitoshi Kawakatsu, James B Gaherty, Hisashi Utada, Sang-Mook Lee, Younghee Kim and Zachary Eilon
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Sharpness of the hemispherical boundary in the inner core beneath the northern PaciFc2019

    • Author(s)
      Hitoshi Kawakatsu, Ryohei Iritani and Nozomu Takeuchi
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Unraveling Earth Interior from the Ocean (Centennial Central)2019

    • Author(s)
      Hitoshi Kawakatsu
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Possible interaction between the core and mantle inferred from a core surface flow model2019

    • Author(s)
      Masaki Matsushima
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Effects of core electrical conductivity on core surface flow models (2)2019

    • Author(s)
      Masaki Matsushima
    • Organizer
      Core-Mantle Interaction and Coevolution A01-2, A-02, A03-1 Joint Group Meeting
    • Related Report
      2019 Annual Research Report
  • [Presentation] Influence of core electrical conductivity on core flow models in a tangentially magnetostrophic state2019

    • Author(s)
      Masaki Matsushima
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New Constraints on Seismological Structures of the Oceanic Asthenosphere2019

    • Author(s)
      Nozomu Takeuchi, Hitoshi Kawakatsu, Hajime Shiobara, Takehi Isse, Hiroko Sugioka, Aki Ito, Hisashi Utada
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Inversion of Longer Period OBS Waveforms for P Structures in the Oceanic Lithosphere and Asthenosphere2019

    • Author(s)
      Nozomu Takeuchi, Hitoshi Kawakatsu, Hajime Shiobara, Takehi Isse, Hiroko Sugioka, Aki Ito, Hisashi Utada
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Regularity of geomagnetic field variations around 2003 and 2007: possible influence of the electrical conductivity heterogeneity at the bottom of the mantle_2019

    • Author(s)
      Hisayoshi Shimizu
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Paleomagnetic Study of the IODP Site U1335 Sediments in the Eastern Equatorial Pacific - Relative Paleointensity and Inclination Anomaly Over the Last 8 Myr2019

    • Author(s)
      Yamazaki T., Yamamoto, Y.
    • Organizer
      Asia Oceania Geosciences Society (AOGS) 16th Annual Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Preliminary report on the relative paleointensity variation during the Eocene deduced from the IODP Sites U1403 and U1408 marine sediments recovered from the northwest Atlantic2019

    • Author(s)
      Yamamoto Y., Fukami H., Taniguchi W., Lippert, P.C.
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 東赤道太平洋 IODP Site U1335 堆積物の古地磁気学的研究 ー 過去800万年間の相対古地磁気強度と伏角異常2019

    • Author(s)
      山本裕二, 山崎俊嗣
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Preliminary report on the paleointensity variation during 38-50 Ma deduced from the marine sediments recovered from the northwest Atlantic2019

    • Author(s)
      山本裕二, 深見洋仁, 谷口若菜, Lippert Peter
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] An Agnostic Tool for Interpreting Shear and Compressional Velocity Tomography2019

    • Author(s)
      Christine Houser
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anisotropy at the Inner Core Boundary2019

    • Author(s)
      George Helffrich
    • Organizer
      AGU2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveform inversion for 3D anisotropic structure in D" beneath the Northern Pacific: Constraints on mineralogy and flow in the lowermost mantle2019

    • Author(s)
      Yuki Suzuki, Kenji Kawai, Robert J. Geller
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Detailed 3-D S-velocity structure within D" at the western Pacific LLSVP margin: smaller scale plumes and paleoslabs2019

    • Author(s)
      Yuki Suzuki, Kenji Kawai, Robert J. Geller, Satoru Tanaka, Weerachai Siripuvaraporn, Songkhun Boonchaisuku, Noisagool Sutthipong, Yasushi Ishihara, Taweoon Kim, Koji Miyakawa, Nozomu Takeuchi
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Origin and role of lost continents2019

    • Author(s)
      Shigenori Maruyama, Kenji Kawai, Greaux Steeve, Dapeng Zhao
    • Organizer
      JpGU2019
    • Related Report
      2019 Annual Research Report
  • [Presentation] Imaging subducted slabs in the mantle from inversion of seismic waves2019

    • Author(s)
      Kenji Kawai
    • Organizer
      International Workshop for Geophysical observation in Thailand _ Present and Future _
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Imaging subducted slabs in the lowermost mantle from inversion of seismic waveforms2019

    • Author(s)
      Kenji Kawai, Anselme F.E. Borgeaud, Yuki Suzuki
    • Organizer
      2019年度 日本地球化学会年会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Retrieval of converted phases from shallow structure of the Ontong Java Plateau2018

    • Author(s)
      Takashi Tonegawa, Daisuke Suetsugu, Seiichi Miura, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Junko Yoshimitsu, Takumi Kobayashi
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Seismic attenuation in the mantle beneath the Ontong Java Plateau from multiple ScS waves2018

    • Author(s)
      Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Shear wave upper mantle structure beneath the Ontong Java Plateau2018

    • Author(s)
      Takehi Isse, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] The OJP array: seismological and electromagnetic observation on seafloor and islands in the Ontong Java Plateau2018

    • Author(s)
      Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Noriko Tada, Aki Ito, Takehi Isse, Kiyoshi Baba, Hiroshi Ichihara, Toyonobu Ota, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi, Hisashi Utada
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Multifrequency P-wave tomography of Ontong Java Plateau2018

    • Author(s)
      Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Takashi Tonegawa, Takumi Kobayashi
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Shear wave splitting observed in the Ontong Java Plateau and adjacent regions2018

    • Author(s)
      Satoru Tanaka, Daisuke Suetsugu, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Masayuki Obayashi, Takashi Tonegawa, Junko Yoshimitsu, Takumi Kobayashi
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A preliminary model for S-wave velocity structure in the D" region beneath New Guinea by using Thai Seismic Array (TSAR)2018

    • Author(s)
      S. Tanaka, W. Siripunvaraporn, S. Boonchaisuk, S. Noisagool, K. Kawai, Y. Suzuki, Y. Ishihara, T. Kim, K. Miyakawa, N. Takeuchi, H. Kawakatsu
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ScS-S走時差残差の方位変化によるフィリピン直下下部マントルの方位異方性2018

    • Author(s)
      田中 聡
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] オントン・ジャワ海台下のP波速度構造2018

    • Author(s)
      Masayuki Obayashi, Junko Yoshimitsu, Daisuke Suetsugu, Hajime Shiobara, HIroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Takashi Tonegawa, Takumi Kobayashi
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Receiver function imaging at the crust and uppermost mantle of Ontong Java Plateau2018

    • Author(s)
      Takashi Tonegawa, Daisuke Suetsugu, Seiichi Miura, Hajime Shiobara, Hiroko Sugioka, Aki Ito, Takehi Isse, Yasushi Ishihara, Satoru Tanaka, Masayuki Obayashi, Junko Yoshimitsu, Takumi Kobayashi
    • Organizer
      AGU fall meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thai Seismic Array (TSAR) Project2018

    • Author(s)
      Satoru Tanaka, Weerachai Siripunvarporn, Songkhun Boonchaisuk, Sutthipong Noisagool, Kenji Kawai, Taewoon Kim, Yuki Suzuki, Yasushi Ishihara, Koji Miyakawa, Nozomu Takeuchi, Hitoshi Kawakatsu
    • Organizer
      SEDI2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismic scatterers in the mid-lower mantle near subduction zones2018

    • Author(s)
      Satoshi Kaneshima
    • Organizer
      SEDI2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 内核西半球内における1次元減衰・速度構造の地域 特性_2018

    • Author(s)
      入谷良平・川勝均・竹内希(東大地震研)・D. Srinagesh_
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Characteristic regional variation of 1D attenuation and velocity profiles in the western hemisphere of the Earth’s inner core_2018

    • Author(s)
      Ryohei Iritani, Hitoshi Kawakatsu, Nozomu Takeuchi_
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 見かけの異方性を考慮した P波方位異方性と鉛直異方性の解釈:東北地方_2018

    • Author(s)
      石瀬 素子,川勝 均,森重 学,汐見 勝彦
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 日本列島下のPS変換面イメージング2.02018

    • Author(s)
      川勝 均・金慧貞_
    • Organizer
      2018年地震学会秋季大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Scattered wavefield imaging of the Japan subduction structure using Hi-net array data2018

    • Author(s)
      Younghee Kim、Hitoshi Kawakatsu
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preliminary study using harmonic decomposition of receiver functions to image non-isotropic characteristics of Japan subduction zone2018

    • Author(s)
      HyeJeong Kim1、Hitoshi Kawakatsu、Takeshi Akuhara
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Observation of multipathing at the western edge of the Pacific Large Low-Shear-Velocity Province2018

    • Author(s)
      Sunil K. Roy1、Nozomu Takeuchi、D. Srinagesh、M. Ravi Kumar、Hitoshi Kawakatsu
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Tsunakawa-Shaw Paleointensity Method Applied to the Holocene Surface Lavas in Hawai2018

    • Author(s)
      Yamamoto, Y., Yamaoka, R.
    • Organizer
      Asia Oceania Geosciences Society (AOGS) 15th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Strength of the geomagnetic field during the Holocene deduced from the surface lavas on the island of Hawaii2018

    • Author(s)
      山本裕二, 山岡 亮
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 火山岩と海底堆積物から探る過去の地磁気強度変動2018

    • Author(s)
      山本裕二
    • Organizer
      地球環境史学会第4回年会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] UDECONソフトウエアによる古地磁気連続試料の自然残留磁化のデコンボルーションの実例2018

    • Author(s)
      山本裕二, 山崎俊嗣, 金松敏也
    • Organizer
      地球電磁気・地球惑星圏学会第144回講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] High resolution paleomagnetic secular variation records from Lake Biwa and its implications on core dynamics2018

    • Author(s)
      小田啓邦, 山本裕二, 井内美郎
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Rock-magnetic properties of single crystals separated from granitic rocks: A guide for selecting samples for paleointensity determination2018

    • Author(s)
      加藤千恵, 佐藤雅彦, 山本裕二, 綱川秀夫, Kirschvink Joseph
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Paleointensity experiments on single crystals separated from the middle Cretaceous Iritono granite2018

    • Author(s)
      加藤千恵, 佐藤雅彦, 山本裕二, 綱川秀夫, Kirschvink Joseph
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preliminary report on sedimentary structure and magnetostratigraphy of IODP Site U14902018

    • Author(s)
      熊谷祐穂, 中村教博, Hatfield Robert, 山崎俊嗣, 山本 裕二, 国際深海科学掘削計画第363次乗船研究者
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Paleointensity experiments on diverse contemporaneous volcanic materials2018

    • Author(s)
      Ahn Hyeon-Seon, 山本裕二
    • Organizer
      地球電磁気・地球惑星圏学会第144回講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Preliminary report on depositional environment and relative paleomagnetic intensity of IODP Site U14902018

    • Author(s)
      熊谷祐穂, 中村教博, Hatfield Robert G., 山崎俊嗣, 山本裕二
    • Organizer
      地球電磁気・地球惑星圏学会第144回講演会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Waveform inversion for localized 3-D shear velocity structure in the lowermost mantle beneath Caroline hotspot2018

    • Author(s)
      Shota Kato, Kenji Kawai, Yuki Suzuki
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Waveform inversion for 3-D S-wave velocity structure of the D窶 region beneath Eurasia2018

    • Author(s)
      Tsubasa Ue, Kenji Kawai, Yuki Suzuki, Robert J. Geller
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Finite frequency effects on the S wavefields in the lowermost mantle for elastic and density models based on mineral physics2018

    • Author(s)
      Atsuki Oba, Kenji Kawai, Anselme F. E. Borgeaud, Robert J. Geller
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] S-velocity structure of the mantle transition zone beneath the Northwestern Pacific inferred from waveform inversion and its geophysical interpretation2018

    • Author(s)
      Lina Yamaya, Anselme F. E. Borgeaud, Kenji Kawai, Maxim Ballmer
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Waveform inversion for 3-D S-wave velocity structure of the D窶イ窶イ region beneath Eurasia2018

    • Author(s)
      Tsubasa Ue, Kenji Kawai, Yuki Suzuki, Robert J. Geller
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 3-D S-velocity structure in the lowermost mantle beneath the Northern Pacific2018

    • Author(s)
      Yuki Suzuki, Kenji Kawai, Robert J. Geller
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Waveform inversion for the 3-D S-velocity structure of the mantle transition zone beneath Central America using USArray data2018

    • Author(s)
      Anselme F. E. Borgeaud, Kenji Kawai, Robert J. Geller, Maxim Ballmer
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] Paleoslabs in the lowermost mantle detected using seismic waveform inversion2018

    • Author(s)
      Kenji Kawai
    • Organizer
      Japan Geoscience Union Meeting 2018
    • Related Report
      2018 Annual Research Report
  • [Presentation] 3-D S-velocity structure of the transition zone beneath Central America and the Northeastern Pacific from waveform inversion2018

    • Author(s)
      Anselme F. E. Borgeaud, Kenji Kawai, Robert J. Geller
    • Organizer
      Asia Oceania Geosciences Society (AOGS) 15th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] S-velocity structure of the mantle transition zone beneath the Northwestern Pacific inferred from waveform inversion and its geophysical interpretation2018

    • Author(s)
      Lina Yamaya, Anselme F. E. Borgeaud, Kenji Kawai, Maxim Ballmer
    • Organizer
      Asia Oceania Geosciences Society(AOGS)15th Annual Meeting
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of core electrical conductivity on core surface flow models2018

    • Author(s)
      Matsushima, M.
    • Organizer
      日本地球惑星科学連合2018年大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Core surface flows depending on electrical conductivity2018

    • Author(s)
      Matsushima, M.
    • Organizer
      SEDI2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A core surface flow and acceleration toward building IGRF-13SV2018

    • Author(s)
      Matsushima, M., Shimizu, H., Takahashi, F., Minami, T., Nakano, S., Toh, H.
    • Organizer
      第144回地球電磁気・地球惑星圏学会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Core flow interaction at the core-mantle boundary and at the inner core boundary inferred from a core surface flow model2018

    • Author(s)
      Matsushima, M.
    • Organizer
      AGU fall meeting 2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Correction of ScS-S travel times for 3D mantle structure to reveal shear wave azimuthal anisotropy in the lower mantle2017

    • Author(s)
      Tanaka S.
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of frequency dependent reflection coefficients at the inner core boundary beneath the central America and western Pacific2017

    • Author(s)
      Tanaka, S. and H. Tkalcic
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Anomalies of S-waves passing through the D'' region beneath New Guinea observed by Thai Seismic Array (TSAR)2017

    • Author(s)
      Tanaka, S., W. Siripunvaraporn, S. Boonchaisuk, S. Noisagool, K. Kawai, Y. Suzuki, Y. Ishihara, T. Kim, K. Miyakawa, N. Takeuchi, H. Kawakatsu
    • Organizer
      日本地震学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Thai Seismic Array (TSAR) Project: Progress in FY20162017

    • Author(s)
      Tanaka, S., W. Siripunvarporn, S. Boonchaisuk, S. Noisagool,K. Kawai, T. Kim, Y. Suzuki, Y. Ishihara, K. Miyakawa, N. Takeuchi, H. Kawakatsu
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismic attenuation of multiple ScS phases beneath South China Sea2017

    • Author(s)
      Nguyen, L.M., S. Tanaka, Y. Ishihara, T. H. Nguyen, V. L. Ha, T. G. Ha, D. Suetsugu
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Structure of Crust and Upper Mantle beneath South China Sea revealed by Surface Wave Tomography2017

    • Author(s)
      Ha, T.G., T. H. Nguyen, S. Tanaka, L. M. Nguyen, Y. Ishihara, V. L. Ha, Q. K. Le
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismological evidence for heterogeneous lowermost outer core of the Earth2017

    • Author(s)
      Ohtaki, T., S. Kaneshima, H. Ichikawa, T. Tsuchiya
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Seismological evidence for heterogeneous lowermost outer core of the Earth2017

    • Author(s)
      Ohtaki, T., S. Kaneshima, H. Ichikawa, T. Tsuchiya
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Examination of local geomagnetic jerks using wavelet analysis2017

    • Author(s)
      Shimizu, H., H. Utada
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Intrinsic Attenuations in the Oceanic Lithosphere and Asthenosphere Constrained by Seismogram Envelopes2017

    • Author(s)
      Takeuchi, N., NOMan Project Team
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Intrinsic Attenuations in the Oceanic Lithosphere and Asthenosphere Constrained by Seismogram Envelopes2017

    • Author(s)
      Takeuchi, N., NOMan Project Team
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Lithology Distribution Model for Neutrino Flux Simulations Obtained by Using Bayesian Inference2017

    • Author(s)
      Takeuchi, N., KamLAND Simulator Project Team
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ab initio calculations reveal why thermal and compositional variations are required to explain observed mantle shear and compressional velocity anomalies2017

    • Author(s)
      Houser, C., J. Hernlund, J. Valencia-Cardona, R. Wentzcovitch
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Slow velocities and thin transition zone indicate upwelling lower mantle beneath eastern Eurasia2017

    • Author(s)
      Houser, C., A. Webb
    • Organizer
      国際測地学協会及び国際地震学・地球内部物理学協会2017年合同学術総会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] New developments in Earth’s deep water cycle2017

    • Author(s)
      Houser, C.
    • Organizer
      RESCEU Symposium Planet Formation around Snowline
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] The failure of 1D seismic model fitting to constrain lower mantle composition2017

    • Author(s)
      Houser, C., J. Hernlund, J. Valencia-Cardona, R. Wentzcovitch
    • Organizer
      アメリカ地球物理学連合2017年秋季大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thai Seismic Array (TSAR) and overview of the contribution of JAMSTEC to seismological observations in Southeastern Asia2017

    • Author(s)
      Tanaka, S., W. Siripunvaraporn, Y. Ishihara
    • Organizer
      Myanmar Applied Earth Sciences Association 2017 Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-P, T elasticity of iron-light element alloys2017

    • Author(s)
      Tsuchiya, T., Y. Kuwayama, M. Ishii, K. Kawai
    • Organizer
      アメリカ地球物理学連合2017年秋季大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 3-D S-velocity structure in the lowermost mantle beneath the Northern Pacific2017

    • Author(s)
      Suzuki, Y., K. Kawai, R. J. Geller, A. F. E. Borgeaud, K. Konishi
    • Organizer
      アメリカ地球物理学連合2017年秋季大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 再決定した深発地震の震源パラメータを用い波形インバージョンで推定した中米下D” 領域の3次元構造2017

    • Author(s)
      Yamaya, L., A. F. E. Borgeaud, K. Kawai, R. J. Geller, K. Konishi
    • Organizer
      日本地震学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 地震波形水平2成分を用いた北部太平洋下D”領域 の3次元S波速度構造推定2017

    • Author(s)
      Suzuki, Y., K. Kawai, R. J. Geller, K. Konishi
    • Organizer
      日本地震学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Velocity structure of the transition zone beneath Central and North America and the Caribbean from waveform inversion2017

    • Author(s)
      Borgeaud, A. F. E., K. Kawai, R. J. Geller
    • Organizer
      日本地震学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] High-P, T Elasticity of Iron-Light Element Alloys2017

    • Author(s)
      Tsuchiya, T., Y. Kuwayama, M. Ishii, K. Kawai
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveform inversion for whole mantle 1-D S-velocity and Q structure beneath Central America and the Caribbean2017

    • Author(s)
      Borgeaud, A. F. E., K. Kawai, R. J. Geller, K. Konishi
    • Organizer
      JpGU-AGU Joint Meeting 2017
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effects of initial whole mantle 1-D S-velocity and Q structure on waveform inversion for 3-D S-velocity structure: Application to D” beneath Central America and the Caribbean2017

    • Author(s)
      Borgeaud, A. F. E., K. Kawai, R. J. Geller, K. Konishi
    • Organizer
      ヨーロッパ地球物理学連合2017年大会
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Velocity structure model dependence of upper, middle and lower crust volume2016

    • Author(s)
      Takeuchi, N.
    • Organizer
      2nd Workshop on KamLAND Geoscience: Toward Enhanced Reference Earth Models for Geoneutrino Analysis
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2016-03-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveform inversion for shear wave velocity structure in the lowermost mantle2016

    • Author(s)
      Kawai, K.,
    • Organizer
      MISASA VI Misasa International Symposium 2016
    • Place of Presentation
      ブランナールみささ(鳥取県東伯郡)
    • Year and Date
      2016-03-09
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Seismological Constraints on Velocity and Density in the Earth’s Core2016

    • Author(s)
      Takeuchi, N.
    • Organizer
      1st Neutrino Oscillation Tomography Workshop
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2016-01-07
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Thai Seismic Array (TSAR) Project2016

    • Author(s)
      Tanaka, S., W. Siripunvarporn, Y. Ishihara, S. Boonchaisuk, S. Noisagool, K. Kawai, T. Kim, K. Miyakawa, K., N. Takeuchi, H. Kawakatsu
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] ScS-S走時差の補正について2016

    • Author(s)
      田中聡
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Current Status of Pilot stations of Thai Seismic Array (TSAR) and Preliminary Receiver Function Analysis2016

    • Author(s)
      Noisagool, S., S. Tanaka, H. Kawakatsu, W. Siripunvaraporn, S. Boonchaisuk, Y. Ishihara, T. Kim, K. Kawai, N. Takeuchi, K. Miyakawa
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Thai Seismic ARray (TSAR) project and it's future application for tectonic and crustal studies of Thailand2016

    • Author(s)
      Noisagool S., S. Tanaka, H. Kawakatsu, W. Siripunvaraporn, S. Boonchisuk
    • Organizer
      The 3rd conference on Tectonic of Northwestern Indochina
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Comparison of frequency dependent amplitude ratios of PKiKP/PcP observed by Hi-net and_USArray2016

    • Author(s)
      Tanaka, S.
    • Organizer
      Goldschmidt 2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] P-wave reflection coefficients at the inner core boundary beneath the central America observed by USArray2016

    • Author(s)
      Tanaka, S., H. Tkalcic
    • Organizer
      第15回地球深部研究国際シンポジウム
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Problems with 1D seismic model fitting2016

    • Author(s)
      Houser, C., J.W. Hernlund, R.M. Wentzcovitch
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A 3D Temperature Map of the Lower Mantle2016

    • Author(s)
      Houser, C., R.M. Wentzcovitch
    • Organizer
      Goldschmidt 2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bridgmanite Enriched Ancient Mantle Structures (BEAMS): A model to unify lower mantle geophysics, geochemistry, and geodynamics2016

    • Author(s)
      Houser, C., M.D. Ballmer, J.W. Hernlund
    • Organizer
      Workshop on the Origin of Plate Tectonics 2016
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Bridgmanite Enriched Ancient Mantle Structures (BEAMS): A model to unify lower mantle geophysics, geochemistry, and geodynamics2016

    • Author(s)
      Houser, C., M.D. Ballmer, J.W. Hernlund
    • Organizer
      第15回地球深部研究国際シンポジウム
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 地震波形水平2成分を用いた北部太平洋D”領域の3次元S波構造推定2016

    • Author(s)
      鈴木裕輝、河合研志、R. Geller、小西健介
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 深発地震の震源パラメータの再決定と波形インバージョンで推定した3次元内部構造への影響の見積もり2016

    • Author(s)
      山谷里奈、A. Borgeaud、河合研志、R. Geller、小西健介
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Finite frequency effects on apparent S-wave splitting in the lowermost mantle2016

    • Author(s)
      Borgeaud, A., K. Kawai, R. Geller, K. Konishi
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 水飴を用いたマントルプルームのアナログ実験2016

    • Author(s)
      河合研志、熊谷一郎
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Full-waveform inversion for localized 3-D S-velocity structure in D” beneath the Caribbean using USArray data2016

    • Author(s)
      Borgeaud, A., K. Konishi, K. Kawai, R.Geller
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Waveform inversion for 3-D shear wave velocity structure within D” beneath the Northern Pacific and Alaska2016

    • Author(s)
      Suzuki, Y., K. Kawai, R. J. Geller, K. Konishi
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Estimate of subduction rate of island arcs to the deep mantle2016

    • Author(s)
      Ichikawa, H., S. Yamamoto, K. Kawai, M. Kameyama
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 鉄と鉄-炭素合金の高温高圧弾性特性2016

    • Author(s)
      土屋 卓久、桑山 靖弘、石井 水晶、河合 研志
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Geoelectromagnetic jerks produced by heterogeneous electrical conductivity in the D" layer2016

    • Author(s)
      Shimizu, H., H. Utada
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Inverse geodynamo modeling to construct geomagnetic field models and dynamo scaling-laws2016

    • Author(s)
      Shimizu, H., T. Hatakeyama, H. Toh
    • Organizer
      地球電磁気・地球惑星圏学会秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Compatibility of an Observed Geoelectric Jerk With Field Variations Influenced by Highly Electrically Conducting LLSVP2016

    • Author(s)
      Shimizu, H., H. Utada
    • Organizer
      アメリカ地球物理学連合2016年秋季大会
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Sensitivity of core phases to F-layer structure2016

    • Author(s)
      Ohtaki, T., S. Kaneshima
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Seismological evidence for heterogeneous lowermost outer core of the Earth from PKiKP-PKPbc differential traveltime and dispersion in PKPbc2016

    • Author(s)
      Ohtaki, T., S. Kaneshima, H. Ichikawa, T. Tsuchiya
    • Organizer
      アメリカ地球物理学連合2016年秋季大会
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Relative Importance of Intrinsic and Scattering Attenuation in the Lower Mantle2016

    • Author(s)
      Takeuchi, N.
    • Organizer
      日本地球惑星科学連合2016年大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] 実体波エンベロープにあるアセノスフェアの高減衰性の証拠2016

    • Author(s)
      竹内 希
    • Organizer
      日本地震学会2016秋季大会
    • Related Report
      2016 Annual Research Report
  • [Presentation] Towards local tomography models with uncertainties, International Workshop:Neutrino Research and Thermal Evolution of the Earth2016

    • Author(s)
      Takeuchi, N.
    • Organizer
      International Workshop:Neutrino Research and Thermal Evolution of the Earth
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Array analyses of SmKS waves and the stratification of Earth’s outermost core2016

    • Author(s)
      Kaneshima S.
    • Organizer
      第15回地球深部研究国際シンポジウム
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] SiO2 Saturation in the Outer Core2016

    • Author(s)
      Helffrich, G., K. Hirose, G. Morard, R. Sinmyo, J. Hernlund
    • Organizer
      第15回地球深部研究国際シンポジウム
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Outer Core Stratification by crystallization of SiO22016

    • Author(s)
      Helffrich, G., K. Hirose, G. Morard, R. Sinmyo
    • Organizer
      第15回地球深部研究国際シンポジウム
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A possible new host mineral of large-ion elements in the Earth’s deep interior2015

    • Author(s)
      Kawai, K. Tsuchiya, T.
    • Organizer
      AGU2016
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Full-waveform Inversion for Localized 3-D S-velocity Structure in D" Beneath the Caribbean using US-Array Data2015

    • Author(s)
      Borgeaud, A., Konishi, K., Kawai, K., Geller, R.J.
    • Organizer
      AGU2016
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] High-P,T Elasticity of Hcp Iron: Reinvestigation of the Applicability of Hcp Iron to the Earth’s Inner Core2015

    • Author(s)
      Tsuchiya,T., Kawai, K., Kuwayama,Y., Ohsumi, M., Ishii, M.
    • Organizer
      AGU2016
    • Place of Presentation
      San Francisco (USA)
    • Year and Date
      2015-12-14
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Adjacent high- and low-velocity regions around the western edge pf the Pacific Large-Low Shear Velocity Province2015

    • Author(s)
      Tanaka, S.
    • Organizer
      International Workshop The Earth’s Mantle and Core: Structure, Composition, Evolution
    • Place of Presentation
      道後プリンスホテル(愛媛県松山市)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Waveform inversion for 3D structure in D"2015

    • Author(s)
      Kawai, K.
    • Organizer
      International Workshop The Earth’s Mantle and Core: Structure, Composition, Evolution
    • Place of Presentation
      道後プリンスホテル(愛媛県松山市)
    • Year and Date
      2015-11-05
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Full waveform inversion for 3D S-velocity structure in the D" region2015

    • Author(s)
      Kawai, K.
    • Organizer
      第138回 地球電磁気・地球惑星圏学会総会・講演会
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-10-31
    • Related Report
      2015 Annual Research Report
    • Invited
  • [Presentation] 波形インバージョンによるハワイ下のD"層の 3次元S波速度構造推定2015

    • Author(s)
      鈴木裕輝、河合研志、小西健介、ゲラー・ロバート
    • Organizer
      2015年度日本地震学会秋季大会
    • Place of Presentation
      神戸コンベンションセンター(兵庫県神戸市)
    • Year and Date
      2015-10-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Waveform inversion for three-dimensional S-wave velocity structure in D" beneath the Caribbean2015

    • Author(s)
      Borgeaud A., Konishi, K., Kawai, K., Geller, R.J.
    • Organizer
      2015年度日本地震学会秋季大会
    • Place of Presentation
      神戸コンベンションセンター(兵庫県神戸市)
    • Year and Date
      2015-10-27
    • Related Report
      2015 Annual Research Report
  • [Presentation] Temperature profile and chemical heterogeneity in the lowermost mantle from seismological and mineral physics joint modeling2015

    • Author(s)
      Kawai, K.
    • Organizer
      2th Japanese-German Frontiers of Science Symposium (JGFoS)
    • Place of Presentation
      Kyoto Brighton Hotel (京都府京都市)
    • Year and Date
      2015-10-03
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Seismic Tomography by Statistical Approach2015

    • Author(s)
      Takeuchi, N.
    • Organizer
      Workshop ERI-IPGP: Geodynamics, earthquakes and volcanic eruptions
    • Place of Presentation
      パリ(フランス)
    • Year and Date
      2015-09-24
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] D"内部構造とその高精度探査の可能性2015

    • Author(s)
      河合研志
    • Organizer
      研究集会「地球内部構造の観測・監視技術の現状と未来」
    • Place of Presentation
      東京大学(東京都文京区)
    • Year and Date
      2015-09-10
    • Related Report
      2015 Annual Research Report
  • [Presentation] 「核-マントルの地震・電磁気観測」の概要2015

    • Author(s)
      田中 聡
    • Organizer
      科研費新学術領域「核-マントル共進化」キックオフシンポジウム
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] マントル最下部異方性と鉱物物理的考察2015

    • Author(s)
      河合研志
    • Organizer
      科研費新学術領域「核-マントル共進化」キックオフシンポジウム
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] Global tomography below and above the core-mantle boundary2015

    • Author(s)
      Houser C.
    • Organizer
      科研費新学術領域「核-マントル共進化」キックオフシンポジウム
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] Properties of the F layer at the base of the outer core2015

    • Author(s)
      Helffrich, G.
    • Organizer
      科研費新学術領域「核-マントル共進化」キックオフシンポジウム
    • Place of Presentation
      愛媛大学(愛媛県松山市)
    • Year and Date
      2015-08-08
    • Related Report
      2015 Annual Research Report
  • [Book] Deep Earth: Physics and Chemistry of the Lower Mantled Core2016

    • Author(s)
      Hidenori Terasaki, Rebecca A Fischer, George Helffrich
    • Total Pages
      312
    • Publisher
      American Geophysical Union
    • Related Report
      2015 Annual Research Report
  • [Remarks] 海洋アセノスフェアの「柔らかさ」のその場観測に成功~アセノスフェアを観測する新たな手段~

    • URL

      http://www.eri.u-tokyo.ac.jp/wp-content/uploads/2017/12/science_takeuchi.pdf

    • Related Report
      2017 Annual Research Report
  • [Remarks] 古プレートの核・マントル境界への沈み込みを初めて確認

    • URL

      http://www.s.u-tokyo.ac.jp/ja/press/2017/5653/

    • Related Report
      2017 Annual Research Report

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Published: 2015-07-02   Modified: 2022-11-04  

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