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Michio Aoyama 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 Michio Aoyama 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.

Michio Aoyama 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 Michio Aoyama 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

Michio Aoyama is affiliated with the University of Tsukuba in Japan. Their research primarily focuses on environmental science, with significant contributions to global and planetary change, radiological and ultrasound technology, safety and risk management, inorganic chemistry, and oceanography as subfields of study.

The scientist's main topics of work include radioactive contamination and transfer, radioactivity and radon measurements, nuclear and radioactivity studies, radioactive element chemistry and processing, nuclear issues and defense, marine and coastal ecosystems, and methane hydrates and related phenomena.

Michio Aoyama has authored notable papers such as:

  • "GO-SHIP Repeat Hydrography Nutrient Manual: The Precise and Accurate Determination of Dissolved Inorganic Nutrients in Seawater, Using Continuous Flow Analysis Methods" (2020, Frontiers in Marine Science)
  • "Mass balance and latest fluxes of radiocesium derived from the Fukushima accident in the western North Pacific Ocean and coastal regions of Japan" (2020, Journal of Environmental Radioactivity)
  • "Impacts of direct release and river discharge on oceanic 137Cs derived from the Fukushima Dai-ichi Nuclear Power Plant accident" (2020, Journal of Environmental Radioactivity)
  • "Suspended Particle-Water Interactions Increase Dissolved 137Cs Activities in the Nearshore Seawater during Typhoon Hagibis" (2020, Environmental Science & Technology)
  • "Atlantic-origin water extension into the Pacific Arctic induced an anomalous biogeochemical event" (2023, Nature Communications)

The most frequent co-authors collaborating with Aoyama include:

  • Yutaka Tateda (14 joint publications)
  • Pavel P. Povinec (11 joint publications)
  • Katsumi Hirose (10 joint publications)
  • Akihiko Murata (6 joint publications)
  • Daisuke Tsumune (6 joint publications)

Michio Aoyama's research is predominantly published in several key venues, such as:

  • Journal of Environmental Radioactivity (9 publications)
  • Earth System Science Data (2 publications)
  • Marine Pollution Bulletin (2 publications)
  • Frontiers in Marine Science (1 publication)
  • Nature Communications (1 publication)

Their work often crosses interdisciplinary boundaries, integrating environmental monitoring, radiological measurements, and oceanographic processes. These contributions address the distribution and effects of radioactive substances in marine environments, especially relating to events like the Fukushima Dai-ichi Nuclear Power Plant accident.

Best Publications

  • Impacts of the Fukushima Nuclear Power Plants on Marine Radioactivity

    Ken O. Buesseler;Michio Aoyama;Masao Fukasawa

  • Distribution of oceanic 137Cs from the Fukushima Dai-ichi Nuclear Power Plant simulated numerically by a regional ocean model.

    Daisuke Tsumune;Takaki Tsubono;Michio Aoyama;Katsumi Hirose

  • Fukushima Daiichi–Derived Radionuclides in the Ocean: Transport, Fate, and Impacts

    Ken O. Buesseler;Minhan Dai;Michio Aoyama;Claudia R. Benítez-Nelson

  • Re-construction and updating our understanding on the global weapons tests 137Cs fallout

    Michio Aoyama;Katsumi Hirose;Yasuhito Igarashi

  • Dispersion of artificial caesium-134 and -137 in the western North Pacific one month after the Fukushima accident

    Makio C. Honda;Tatsuo Aono;Michio Aoyama;Yasunori Hamajima

  • 134Cs and 137Cs in the North Pacific Ocean derived from the March 2011 TEPCO Fukushima Dai-ichi Nuclear Power Plant accident, Japan. Part two: estimation of 134Cs and 137Cs inventories in the North Pacific Ocean

    Michio Aoyama;Mizuo Kajino;Taichu Y. Tanaka;Tsuyoshi Thomas Sekiyama

  • 134Cs and 137Cs in the North Pacific Ocean derived from the March 2011 TEPCO Fukushima Dai-ichi Nuclear Power Plant accident, Japan. Part one: surface pathway and vertical distributions

    Michio Aoyama;Yasunori Hamajima;Mikael Hult;Mitsuo Uematsu

  • One-year, regional-scale simulation of 137 Cs radioactivity in the ocean following the Fukushima Dai-ichi Nuclear Power Plant accident

    D. Tsumune;T. Tsubono;M. Aoyama;M. Uematsu

  • Cesium, iodine and tritium in NW Pacific waters - a comparison of the Fukushima impact with global fallout

    P. P. Povinec;M. Aoyama;D. Biddulph;R. Breier

  • High level radioactive nuclides in Japan in May.

    M. Aoyama;K. Hirose;Y. Suzuki;H. Inoue

  • Analysis of the 50-year records of the atmospheric deposition of long-lived radionuclides in Japan

    K. Hirose;Y. Igarashi;M. Aoyama

  • Determination of dissolved nutrients (N, P, Si) in seawater with high precision and inter-comparability using gas-segmented continuous flow analysers

    DJ Hydes;M Aoyama;A Aminot;Dce Bakker

  • Radiostrontium in the Western North Pacific: Characteristics, Behavior, and the Fukushima Impact

    Pavel P. Povinec;Katsumi Hirose;Katsumi Hirose;Michio Aoyama

  • IAEA’97 expedition to the NW Pacific Ocean—results of oceanographic and radionuclide investigations of the water column

    Pavel P Povinec;Hugh D Livingston;Shigeki Shima;Michio Aoyama

  • Southward spreading of the Fukushima-derived radiocesium across the Kuroshio Extension in the North Pacific

    Yuichiro Kumamoto;Michio Aoyama;Yasunori Hamajima;Tatsuo Aono

  • Surface pathway of radioactive plume of TEPCO Fukushima NPP1 released 134 Cs and 137 Cs

    M. Aoyama;M. Uematsu;D. Tsumune;Y. Hamajima

  • Annual deposition of Sr-90, Cs-137 and Pu-239, 240 from the 1961 - 1980 nuclear explosions: a simple model

    K. Hirose;M. Aoyama;Y. Katsuragi;Y. Sugimura

  • Distribution of 137Cs and 134Cs in the North Pacific Ocean: impacts of the TEPCO Fukushima-Daiichi NPP accident

    Michio Aoyama;Daisuke Tsumune;Yasunori Hamajima

  • Temporal variation of 134Cs and 137Cs activities in surface water at stations along the coastline near the Fukushima Dai-ichi Nuclear Power Plant accident site, Japan

    Michio Aoyama;Daisuke Tsumune;Mitsuo Uematsu;Fumiyoshi Kondo

  • Artificial radionuclides database in the Pacific Ocean: HAM database.

    Michio Aoyama;Katsumi Hirose

Frequent Co-Authors

Katsumi Hirose
Katsumi Hirose Sophia University
Yasuhito Igarashi
Yasuhito Igarashi Kyoto University
Akihiko Murata
Akihiko Murata Japan Agency for Marine-Earth Science and Technology
Pavel P. Povinec
Pavel P. Povinec Comenius University
Shigeto Nishino
Shigeto Nishino Japan Agency for Marine-Earth Science and Technology
Mitsuo Uematsu
Mitsuo Uematsu University of Tokyo
Minhan Dai
Minhan Dai Xiamen University
Joan-Albert Sanchez-Cabeza
Joan-Albert Sanchez-Cabeza National Autonomous University of Mexico
Ken O. Buesseler
Ken O. Buesseler Woods Hole Oceanographic Institution
Pere Masqué
Pere Masqué Edith Cowan University

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