World's Best Scientists 2026 revealed!
Akira Tsuchiyama

Akira Tsuchiyama

D-Index & Metrics

Environmental Sciences

D-Index
50
Citations
11279
World Ranking
4908
National Ranking
84

Akira Tsuchiyama publication distribution in Environmental Sciences in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Environmental Sciences in 2026. The highlighted bar marks where Akira Tsuchiyama sits on this spectrum.

41–50 publications: 21 scientists 51–60 publications: 62 scientists 61–70 publications: 133 scientists 71–80 publications: 257 scientists 81–90 publications: 361 scientists 91–100 publications: 440 scientists 101–110 publications: 492 scientists 111–120 publications: 541 scientists 121–130 publications: 617 scientists 131–140 publications: 544 scientists 141–150 publications: 541 scientists 151–160 publications: 539 scientists 161–170 publications: 444 scientists 171–180 publications: 444 scientists 181–190 publications: 400 scientists 191–200 publications: 377 scientists 201–210 publications: 318 scientists 211–220 publications: 283 scientists 221–230 publications: 263 scientists 231–240 publications: 220 scientists 241–250 publications: 217 scientists 251–260 publications: 180 scientists 261–270 publications: 181 scientists 271–280 publications: 155 scientists 281–290 publications: 130 scientists 291–300 publications: 127 scientists 301–310 publications: 130 scientists 311–320 publications: 85 scientists 321–330 publications: 106 scientists 331–340 publications: 80 scientists 341–350 publications: 83 scientists 351–360 publications: 75 scientists 361–370 publications: 69 scientists 371–380 publications: 52 scientists 381–390 publications: 54 scientists 391–400 publications: 56 scientists 401–410 publications: 44 scientists 411–420 publications: 40 scientists 421–430 publications: 36 scientists 431–440 publications: 25 scientists 441–450 publications: 25 scientists 451–460 publications: 32 scientists 461–470 publications: 29 scientists 471–480 publications: 21 scientists 481–490 publications: 26 scientists 491–500 publications: 25 scientists 501–510 publications: 17 scientists 511–520 publications: 18 scientists 521–530 publications: 15 scientists 531–540 publications: 22 scientists 541–550 publications: 12 scientists 551–560 publications: 15 scientists 561–570 publications: 11 scientists 571–580 publications: 19 scientists 581–590 publications: 9 scientists 591–600 publications: 9 scientists 601–610 publications: 7 scientists 611–620 publications: 11 scientists 621–630 publications: 5 scientists 631–640 publications: 5 scientists 641–650 publications: 6 scientists 651–660 publications: 3 scientists 661–670 publications: 3 scientists 671–680 publications: 4 scientists 681–686 publications: 3 scientists 687+ publications: 100 scientists
41 publications 687+

This scientist: 394 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 687 publications or more.

Akira Tsuchiyama D-index placement in Environmental Sciences in 2026

The chart shows the D-index (discipline H-index) distribution of Environmental Sciences scientists ranked by Research.com in 2026. The highlighted bar marks where Akira Tsuchiyama sits on this spectrum.

30 D-Index: 12 scientists 31 D-Index: 26 scientists 32 D-Index: 51 scientists 33 D-Index: 88 scientists 34 D-Index: 123 scientists 35 D-Index: 163 scientists 36 D-Index: 206 scientists 37 D-Index: 267 scientists 38 D-Index: 265 scientists 39 D-Index: 275 scientists 40 D-Index: 321 scientists 41 D-Index: 343 scientists 42 D-Index: 305 scientists 43 D-Index: 336 scientists 44 D-Index: 330 scientists 45 D-Index: 348 scientists 46 D-Index: 291 scientists 47 D-Index: 275 scientists 48 D-Index: 272 scientists 49 D-Index: 273 scientists 50 D-Index: 263 scientists 51 D-Index: 232 scientists 52 D-Index: 266 scientists 53 D-Index: 217 scientists 54 D-Index: 199 scientists 55 D-Index: 177 scientists 56 D-Index: 202 scientists 57 D-Index: 204 scientists 58 D-Index: 166 scientists 59 D-Index: 177 scientists 60 D-Index: 166 scientists 61 D-Index: 152 scientists 62 D-Index: 143 scientists 63 D-Index: 150 scientists 64 D-Index: 124 scientists 65 D-Index: 119 scientists 66 D-Index: 120 scientists 67 D-Index: 118 scientists 68 D-Index: 82 scientists 69 D-Index: 98 scientists 70 D-Index: 94 scientists 71 D-Index: 105 scientists 72 D-Index: 74 scientists 73 D-Index: 84 scientists 74 D-Index: 70 scientists 75 D-Index: 67 scientists 76 D-Index: 78 scientists 77 D-Index: 60 scientists 78 D-Index: 59 scientists 79 D-Index: 52 scientists 80 D-Index: 47 scientists 81 D-Index: 38 scientists 82 D-Index: 48 scientists 83 D-Index: 42 scientists 84 D-Index: 42 scientists 85 D-Index: 43 scientists 86 D-Index: 29 scientists 87 D-Index: 37 scientists 88 D-Index: 29 scientists 89 D-Index: 30 scientists 90 D-Index: 34 scientists 91 D-Index: 20 scientists 92 D-Index: 22 scientists 93 D-Index: 17 scientists 94 D-Index: 19 scientists 95 D-Index: 24 scientists 96 D-Index: 21 scientists 97 D-Index: 20 scientists 98 D-Index: 24 scientists 99 D-Index: 17 scientists 100 D-Index: 17 scientists 101 D-Index: 21 scientists 102 D-Index: 25 scientists 103 D-Index: 18 scientists 104 D-Index: 26 scientists 105 D-Index: 19 scientists 106 D-Index: 15 scientists 107 D-Index: 10 scientists 108 D-Index: 13 scientists 109 D-Index: 15 scientists 110 D-Index: 12 scientists 111 D-Index: 8 scientists 112 D-Index: 7 scientists 113 D-Index: 9 scientists 114 D-Index: 6 scientists 115 D-Index: 12 scientists 116 D-Index: 7 scientists 117 D-Index: 8 scientists 118 D-Index: 3 scientists 119 D-Index: 5 scientists 120 D-Index: 7 scientists 121 D-Index: 2 scientists 122 D-Index: 4 scientists 123 D-Index: 8 scientists 124 D-Index: 7 scientists 125+ D-Index: 99 scientists
30 D-Index 125+

This scientist: 50 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 125 D-Index or more.

Overview

Akira Tsuchiyama is affiliated with Ritsumeikan University in Japan and has contributed extensively to the fields of Physics and Astronomy as well as Earth and Planetary Sciences. Their research primarily focuses on Astronomy and Astrophysics and Geophysics, with additional work in Atmospheric Science, Ecology, and Mechanics of Materials.

The main topics covered in Tsuchiyama's research include Astro and Planetary Science, Planetary Science and Exploration, Geological and Geochemical Analysis, and High-pressure Geophysics and Materials. They have also worked on Geological and Paleoclimatology Research, Isotope Analysis in Ecology, and Astrophysics and Star Formation Studies.

Tsuchiyama's publication record includes a notable number of papers in several prominent scientific venues. These frequently include:

  • Meteoritics and Planetary Science
  • Geochimica et Cosmochimica Acta
  • Nature Astronomy
  • Icarus
  • Science Advances

Recent significant papers authored by or associated with Tsuchiyama are:

  • Formation and evolution of carbonaceous asteroid Ryugu: Direct evidence from returned samples, 2022, Science
  • Pebbles and sand on asteroid (162173) Ryugu: In situ observation and particles returned to Earth, 2022, Science
  • A pristine record of outer Solar System materials from asteroid Ryugu's returned sample, 2022, Nature Astronomy
  • A dehydrated space-weathered skin cloaking the hydrated interior of Ryugu, 2022, Nature Astronomy
  • Ubiquitous and progressively increasing ferric iron content on the lunar surfaces revealed by the Chang'e-5 sample, 2023, Nature Astronomy

The scientist collaborates frequently with other researchers, including Akira Miyake, Kentaro Uesugi, Junya Matsuno, Tatsuhiro Michikami, and Masanao Abe. These coauthors have each worked on multiple publications alongside Tsuchiyama.

Best Publications

  • Comet 81P/Wild 2 under a microscope.

    Don Brownlee;Peter Tsou;Jérôme Aléon;Conel M O'd Alexander

  • Mineralogy and petrology of comet 81P/wild 2 nucleus samples

    Michael E. Zolensky;Thomas J. Zega;Hajime Yano;Sue Wirick

  • Dissolution kinetics of plagioclase in the melt of the system diopside-albite-anorthite, and origin of dusty plagioclase in andesites

    Akira Tsuchiyama

  • Itokawa Dust Particles: A Direct Link Between S-Type Asteroids and Ordinary Chondrites

    Tomoki Nakamura;Takaaki Noguchi;Masahiko Tanaka;Michael E. Zolensky

  • Three-Dimensional Structure of Hayabusa Samples: Origin and Evolution of Itokawa Regolith

    Akira Tsuchiyama;Masayuki Uesugi;Takashi Matsushima;Tatsuhiro Michikami

  • The search for and analysis of direct samples of early Solar System aqueous fluids.

    Michael E. Zolensky;Robert J. Bodnar;Hisayoshi Yurimoto;Shoichi Itoh

  • Low core-mantle boundary temperature inferred from the solidus of pyrolite.

    Ryuichi Nomura;Kei Hirose;Kei Hirose;Kentaro Uesugi;Yasuo Ohishi

  • Chondrulelike Objects in Short-Period Comet 81P/Wild 2

    Tomoki Nakamura;Takaaki Noguchi;Akira Tsuchiyama;Takayuki Ushikubo

  • Compositional dependence of infrared absorption spectra of crystalline silicate: II. Natural and synthetic olivines

    C. Koike;H. Chihara;H. Chihara;A. Tsuchiyama;H. Suto

  • Elemental Compositions of Comet 81P/Wild 2 Samples Collected by Stardust

    George J. Flynn;Pierre Bleuet;Janet Borg;John P. Bradley

  • 3D Shape Characterization and Image-Based DEM Simulation of the Lunar Soil Simulant FJS-1

    Takashi Matsushima;Jun Katagiri;Kentaro Uesugi;Akira Tsuchiyama

  • Oxygen isotopic compositions of asteroidal materials returned from Itokawa by the Hayabusa mission.

    Hisayoshi Yurimoto;Ken Ichi Abe;Masanao Abe;Mitsuru Ebihara

  • Irradiation History of Itokawa Regolith Material Deduced from Noble Gases in the Hayabusa Samples

    Keisuke Nagao;Ryuji Okazaki;Tomoki Nakamura;Yayoi N. Miura

  • A pristine record of outer Solar System materials from asteroid Ryugu’s returned sample

    Unknown

  • Space weathered rims found on the surfaces of the Itokawa dust particles

    Takaaki Noguchi;Makoto Kimura;Takahito Hashimoto;Mitsuru Konno

  • Melting kinetics of a plagioclase feldspar

    Akira Tsuchiyama;Eiichi Takahashi

  • Volatilization of sodium from silicate melt spheres and its application to the formation of chondrules

    Akira Tsuchiyama;Hiroko Nagahara;Ikuo Kushiro

  • Compositional dependence of infrared absorption spectra of crystalline silicates - I. Mg–Fe pyroxenes

    H. Chihara;H. Chihara;C. Koike;A. Tsuchiyama;S. Tachibana

  • Effect of stirring on crystallization kinetics of basalt: texture and element partitioning

    Akira Kouchi;Akira Tsuchiyama;Ichiro Sunagawa

  • Magma deformation may induce non-explosive volcanism via degassing through bubble networks

    Satoshi Okumura;Michihiko Nakamura;Shingo Takeuchi;Akira Tsuchiyama

  • Evolution of bubble microstructure in sheared rhyolite: Formation of a channel-like bubble network

    Satoshi Okumura;Michihiko Nakamura;Akira Tsuchiyama;Tsukasa Nakano

  • Low-temperature single crystal reflection spectra of forsterite

    H. Suto;H. Sogawa;S. Tachibana;C. Koike

  • Three-dimensional diffusion of non-sorbing species in porous sandstone: computer simulation based on X-ray microtomography using synchrotron radiation.

    Yoshito Nakashima;Tsukasa Nakano;Koichi Nakamura;Kentaro Uesugi

  • Neutron Activation Analysis of a Particle Returned from Asteroid Itokawa

    M. Ebihara;S. Sekimoto;N. Shirai;Y. Hamajima

  • Analytical dual-energy microtomography: A new method for obtaining three-dimensional mineral phase images and its application to Hayabusa samples

    A. Tsuchiyama;T. Nakano;K. Uesugi;M. Uesugi

  • Shear deformation experiments on vesicular rhyolite: Implications for brittle fracturing, degassing, and compaction of magmas in volcanic conduits

    Satoshi Okumura;Michihiko Nakamura;Tsukasa Nakano;Kentaro Uesugi

  • Quantitative evaluation of attenuation contrast of X-ray computed tomography images using monochromatized beams

    Akira Tsuchiyama;Kentaro Uesugi;Tsukasa Nakano;Susumu Ikeda

Frequent Co-Authors

Michael E. Zolensky
Michael E. Zolensky National Aeronautics and Space Administration
Tomoki Nakamura
Tomoki Nakamura Tohoku University
Kentaro Uesugi
Kentaro Uesugi Stanford University
Takaaki Noguchi
Takaaki Noguchi Kyoto University
Akira Miyake
Akira Miyake University of Colorado Boulder
John Bridges
John Bridges University of Leicester
Frank E. Brenker
Frank E. Brenker Goethe University Frankfurt
Anton T. Kearsley
Anton T. Kearsley Natural History Museum
Manfred Burghammer
Manfred Burghammer European Synchrotron Radiation Facility
Peter Cloetens
Peter Cloetens European Synchrotron Radiation Facility

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