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Takehiro Koyaguchi

Takehiro Koyaguchi

Takehiro Koyaguchi publication distribution in Earth Science in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Earth Science in 2026. The highlighted bar marks where Takehiro Koyaguchi sits on this spectrum.

38–42 publications: 1 scientists 43–47 publications: 0 scientists 48–52 publications: 3 scientists 53–57 publications: 8 scientists 58–62 publications: 11 scientists 63–67 publications: 16 scientists 68–72 publications: 24 scientists 73–77 publications: 31 scientists 78–82 publications: 49 scientists 83–87 publications: 77 scientists 88–92 publications: 86 scientists 93–97 publications: 88 scientists 98–102 publications: 92 scientists 103–107 publications: 84 scientists 108–112 publications: 102 scientists 113–117 publications: 108 scientists 118–122 publications: 117 scientists 123–127 publications: 126 scientists 128–132 publications: 146 scientists 133–137 publications: 114 scientists 138–142 publications: 102 scientists 143–147 publications: 127 scientists 148–152 publications: 102 scientists 153–157 publications: 112 scientists 158–162 publications: 102 scientists 163–167 publications: 127 scientists 168–172 publications: 121 scientists 173–177 publications: 112 scientists 178–182 publications: 109 scientists 183–187 publications: 98 scientists 188–192 publications: 92 scientists 193–197 publications: 105 scientists 198–202 publications: 77 scientists 203–207 publications: 80 scientists 208–212 publications: 89 scientists 213–217 publications: 70 scientists 218–222 publications: 74 scientists 223–227 publications: 74 scientists 228–232 publications: 70 scientists 233–237 publications: 67 scientists 238–242 publications: 59 scientists 243–247 publications: 67 scientists 248–252 publications: 51 scientists 253–257 publications: 46 scientists 258–262 publications: 41 scientists 263–267 publications: 39 scientists 268–272 publications: 34 scientists 273–277 publications: 39 scientists 278–282 publications: 35 scientists 283–287 publications: 36 scientists 288–292 publications: 35 scientists 293–297 publications: 29 scientists 298–302 publications: 23 scientists 303–307 publications: 39 scientists 308–312 publications: 34 scientists 313–317 publications: 23 scientists 318–322 publications: 18 scientists 323–327 publications: 18 scientists 328–332 publications: 21 scientists 333–337 publications: 20 scientists 338–342 publications: 15 scientists 343–347 publications: 13 scientists 348–352 publications: 24 scientists 353–357 publications: 25 scientists 358–362 publications: 10 scientists 363–367 publications: 20 scientists 368–372 publications: 17 scientists 373–377 publications: 18 scientists 378–382 publications: 15 scientists 383–387 publications: 7 scientists 388–392 publications: 22 scientists 393–397 publications: 9 scientists 398–402 publications: 11 scientists 403–407 publications: 16 scientists 408–412 publications: 4 scientists 413–417 publications: 5 scientists 418–422 publications: 14 scientists 423–427 publications: 8 scientists 428–432 publications: 7 scientists 433–437 publications: 7 scientists 438–442 publications: 10 scientists 443–447 publications: 10 scientists 448–452 publications: 3 scientists 453–457 publications: 9 scientists 458–462 publications: 11 scientists 463–467 publications: 4 scientists 468–472 publications: 6 scientists 473–477 publications: 11 scientists 478–482 publications: 8 scientists 483–487 publications: 2 scientists 488–492 publications: 3 scientists 493–497 publications: 4 scientists 498–502 publications: 4 scientists 503–507 publications: 4 scientists 508–509 publications: 4 scientists 510+ publications: 100 scientists
38 publications 510+

The last bar groups every scientist with 510 publications or more.

Takehiro Koyaguchi D-index placement in Earth Science in 2026

The chart shows the D-index (discipline H-index) distribution of Earth Science scientists ranked by Research.com in 2026. The highlighted bar marks where Takehiro Koyaguchi sits on this spectrum.

30 D-Index: 15 scientists 31 D-Index: 42 scientists 32 D-Index: 60 scientists 33 D-Index: 90 scientists 34 D-Index: 103 scientists 35 D-Index: 108 scientists 36 D-Index: 142 scientists 37 D-Index: 147 scientists 38 D-Index: 147 scientists 39 D-Index: 152 scientists 40 D-Index: 143 scientists 41 D-Index: 157 scientists 42 D-Index: 141 scientists 43 D-Index: 151 scientists 44 D-Index: 140 scientists 45 D-Index: 135 scientists 46 D-Index: 121 scientists 47 D-Index: 108 scientists 48 D-Index: 128 scientists 49 D-Index: 111 scientists 50 D-Index: 106 scientists 51 D-Index: 112 scientists 52 D-Index: 102 scientists 53 D-Index: 103 scientists 54 D-Index: 94 scientists 55 D-Index: 61 scientists 56 D-Index: 101 scientists 57 D-Index: 71 scientists 58 D-Index: 65 scientists 59 D-Index: 78 scientists 60 D-Index: 93 scientists 61 D-Index: 56 scientists 62 D-Index: 58 scientists 63 D-Index: 52 scientists 64 D-Index: 63 scientists 65 D-Index: 49 scientists 66 D-Index: 53 scientists 67 D-Index: 57 scientists 68 D-Index: 50 scientists 69 D-Index: 44 scientists 70 D-Index: 44 scientists 71 D-Index: 31 scientists 72 D-Index: 33 scientists 73 D-Index: 33 scientists 74 D-Index: 23 scientists 75 D-Index: 32 scientists 76 D-Index: 24 scientists 77 D-Index: 17 scientists 78 D-Index: 19 scientists 79 D-Index: 9 scientists 80 D-Index: 21 scientists 81 D-Index: 20 scientists 82 D-Index: 17 scientists 83 D-Index: 19 scientists 84 D-Index: 19 scientists 85 D-Index: 14 scientists 86 D-Index: 6 scientists 87 D-Index: 14 scientists 88 D-Index: 17 scientists 89 D-Index: 10 scientists 90 D-Index: 8 scientists 91 D-Index: 8 scientists 92 D-Index: 9 scientists 93 D-Index: 6 scientists 94+ D-Index: 98 scientists
30 D-Index 94+

The last bar groups every scientist with 94 D-Index or more.

Overview

Takehiro Koyaguchi is a researcher affiliated with the University of Tokyo in Japan. Their work primarily spans the fields of Earth and Planetary Sciences and Engineering, with a particular focus on geophysics, atmospheric science, earth-surface processes, computational mechanics, and ocean engineering.

The research topics covered by Koyaguchi include earthquake and tectonic studies, geological and geochemical analysis, meteorological phenomena and simulations, geological formations and processes, geology and paleoclimatology research, fluid dynamics and turbulent flows, as well as particle dynamics in fluid flows.

Koyaguchi's recent papers are published in a range of journals, highlighting an emphasis on volcanic activity, fluid dynamics, and associated geophysical phenomena. Selected publications include:

  • Validation of a two-layer depth-averaged model by comparison with an experimental dilute stratified pyroclastic density current, 2021, Bulletin of Volcanology
  • Dynamics and Deposits of Pyroclastic Density Currents in Magmatic and Phreatomagmatic Eruptions Revealed by a Two-Layer Depth-Averaged Model, 2023, Geophysical Research Letters
  • Constraints on magma storage conditions based on geodetic volume change and erupted magma volume and application to the 2011 and 2018 eruptions at Kirishima Shinmoe-dake volcano, Japan, 2023, Earth Planets and Space
  • Control of Vent Geometry on the Fluid Dynamics of Volcanic Plumes: Insights From Numerical Simulations, 2020, Geophysical Research Letters
  • Dynamics of gas-driven eruption on Ceres as a probe to its interior, 2023, Icarus

The frequent co-authors collaborating with Koyaguchi include Yujiro Suzuki, Hiroyuki A. Shimizu, Kensuke Ishii, Akira Nishijo, and Tomofumi Kozono. These collaborations indicate active engagement with researchers specializing in geophysics and related areas within Earth and Planetary Sciences.

Koyaguchi's work appears regularly in several prominent scientific venues. The most frequent publication outlets include:

  • Geophysical Research Letters
  • Earth Planets and Space
  • Bulletin of Volcanology
  • Icarus
  • Journal of Applied Volcanology

Best Publications

  • Transitions between explosive and effusive eruptions of silicic magmas

    Andrew W. Woods;Takehiro Koyaguchi

  • Magma mixing in a conduit

    Takehiro Koyaguchi

  • CHARGE MEASUREMENTS ON PARTICLE FALLOUT FROM A VOLCANIC PLUME

    Jennifer Gilbert;Stephen Lane;Rsj Sparks;T Koyaguchi

  • On the formation of eruption columns following explosive mixing of magma and surface‐water

    Takehiro Koyaguchi;Andrew W. Woods

  • A numerical study of turbulent mixing in eruption clouds using a three-dimensional fluid dynamics model

    Yujiro J. Suzuki;Takehiro Koyaguchi;Masaki Ogawa;Izumi Hachisu

  • Magma discharge variations during the 2011 eruptions of Shinmoe-dake volcano, Japan, revealed by geodetic and satellite observations

    Tomofumi Kozono;Hideki Ueda;Taku Ozawa;Takehiro Koyaguchi

  • Measurements of electric charge distribution in volcanic plumes at Sakurajima Volcano, Japan

    Toshiro Miura;Takehiro Koyaguchi;Yoshikazu Tanaka

  • A Two-stage Thermal Evolution Model of Magmas in Continental Crust

    Takehiro Koyaguchi;Katsuya Kaneko

  • Textural and compositional evidence for magma mixing and its mechanism, Abu volcano group, southwestern Japan

    Takehiro Koyaguchi

  • Tectonic stress controls on ascent and emplacement of magmas

    Tohru Watanabe;Takehiro Koyaguchi;Tetsuzo Seno

  • Mixing of stratified liquids by the motion of gas bubbles: application to magma mixing

    Nathalie Thomas;Stephen Tait;Takehiro Koyaguchi

  • Evidence for two-stage mixing in magmatic inclusions and rhyolitic lava domes on Niijima Island, Japan

    Takehiro Koyaguchi

  • A three‐dimensional numerical simulation of spreading umbrella clouds

    Y. J. Suzuki;T. Koyaguchi

  • Sedimentation of particles from a convecting fluid

    Takehiro Koyaguchi;Takehiro Koyaguchi;Mark A. Hallworth;Herbert E. Huppert;R. Stephen J. Sparks

  • Origin of modal and rhythmic igneous layering by sedimentation in a convecting magma chamber

    Rsj Sparks;HE Huppert;T Koyaguchi;MA Hallworth

  • Origin of the giant eruption cloud of Pinatubo, June 15, 1991

    Takehiro Koyaguchi;Masami Tokuno

  • Repeated large-scale eruptions from a single compositionally stratified magma chamber: An example from Aso volcano, Southwest Japan

    Katsuya Kaneko;Hiroki Kamata;Takehiro Koyaguchi;Masako Yoshikawa;Masako Yoshikawa

  • The effect of magma flow on nucleation of gas bubbles in a volcanic conduit

    Hélène Massol;Takehiro Koyaguchi

  • The dynamics of magma mixing in a rising magma batch

    Takehiro Koyaguchi;Stephen Blake

  • Reconstruction of eruption column dynamics on the basis of grain size of tephra fall deposits: 2. Application to the Pinatubo 1991 eruption

    Takehiro Koyaguchi;Marekazu Ohno

  • Magma mixing in mantle xenolith-bearing calc-alkalic ejecta, ichinomegata volcano, Northeastern Japan

    M. Sakuyama;T. Koyaguchi

Frequent Co-Authors

Antonio Costa
Antonio Costa National Institute of Geophysics and Volcanology
Herbert E. Huppert
Herbert E. Huppert University of Cambridge
Andrew W. Woods
Andrew W. Woods University of Cambridge
Heidy M Mader
Heidy M Mader University of Bristol
Stephen Blake
Stephen Blake The Open University
Shigeo Yoshida
Shigeo Yoshida Kurume University
Agust Gudmundsson
Agust Gudmundsson Royal Holloway University of London
Michael Manga
Michael Manga University of California, Berkeley
Tetsuzo Seno
Tetsuzo Seno University of Tokyo
Costanza Bonadonna
Costanza Bonadonna University of Geneva

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