World's Best Scientists 2026 revealed!
Urumu Tsunogai

Urumu Tsunogai

D-Index & Metrics

Earth Science

D-Index
51
Citations
8604
World Ranking
3274
National Ranking
72

Urumu Tsunogai 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 Urumu Tsunogai sits on this spectrum.

38–47 publications: 5 scientists 48–57 publications: 33 scientists 58–67 publications: 94 scientists 68–77 publications: 161 scientists 78–87 publications: 278 scientists 88–97 publications: 376 scientists 98–107 publications: 404 scientists 108–117 publications: 484 scientists 118–127 publications: 540 scientists 128–137 publications: 557 scientists 138–147 publications: 491 scientists 148–157 publications: 495 scientists 158–167 publications: 458 scientists 168–177 publications: 490 scientists 178–187 publications: 414 scientists 188–197 publications: 401 scientists 198–207 publications: 333 scientists 208–217 publications: 292 scientists 218–227 publications: 290 scientists 228–237 publications: 262 scientists 238–247 publications: 243 scientists 248–257 publications: 208 scientists 258–267 publications: 185 scientists 268–277 publications: 147 scientists 278–287 publications: 128 scientists 288–297 publications: 119 scientists 298–307 publications: 120 scientists 308–317 publications: 107 scientists 318–327 publications: 93 scientists 328–337 publications: 87 scientists 338–347 publications: 64 scientists 348–357 publications: 87 scientists 358–367 publications: 60 scientists 368–377 publications: 60 scientists 378–387 publications: 34 scientists 388–397 publications: 50 scientists 398–407 publications: 44 scientists 408–417 publications: 31 scientists 418–427 publications: 39 scientists 428–437 publications: 27 scientists 438–447 publications: 36 scientists 448–457 publications: 27 scientists 458–467 publications: 29 scientists 468–477 publications: 30 scientists 478–487 publications: 19 scientists 488–497 publications: 15 scientists 498–507 publications: 18 scientists 508–517 publications: 19 scientists 518–527 publications: 16 scientists 528–537 publications: 10 scientists 538–547 publications: 11 scientists 548–557 publications: 14 scientists 558–567 publications: 11 scientists 568–577 publications: 7 scientists 578–587 publications: 14 scientists 588–597 publications: 5 scientists 598–602 publications: 4 scientists 603+ publications: 100 scientists
38 publications 603+

This scientist: 291 publications — 85th percentile

85% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 603 publications or more.

Urumu Tsunogai 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 Urumu Tsunogai sits on this spectrum.

30 D-Index: 144 scientists 31 D-Index: 215 scientists 32 D-Index: 278 scientists 33 D-Index: 379 scientists 34 D-Index: 366 scientists 35 D-Index: 372 scientists 36 D-Index: 389 scientists 37 D-Index: 366 scientists 38 D-Index: 344 scientists 39 D-Index: 349 scientists 40 D-Index: 296 scientists 41 D-Index: 289 scientists 42 D-Index: 277 scientists 43 D-Index: 279 scientists 44 D-Index: 248 scientists 45 D-Index: 257 scientists 46 D-Index: 212 scientists 47 D-Index: 202 scientists 48 D-Index: 207 scientists 49 D-Index: 204 scientists 50 D-Index: 183 scientists 51 D-Index: 178 scientists 52 D-Index: 182 scientists 53 D-Index: 178 scientists 54 D-Index: 163 scientists 55 D-Index: 117 scientists 56 D-Index: 163 scientists 57 D-Index: 120 scientists 58 D-Index: 113 scientists 59 D-Index: 136 scientists 60 D-Index: 135 scientists 61 D-Index: 96 scientists 62 D-Index: 103 scientists 63 D-Index: 83 scientists 64 D-Index: 103 scientists 65 D-Index: 83 scientists 66 D-Index: 89 scientists 67 D-Index: 92 scientists 68 D-Index: 89 scientists 69 D-Index: 78 scientists 70 D-Index: 75 scientists 71 D-Index: 53 scientists 72 D-Index: 62 scientists 73 D-Index: 54 scientists 74 D-Index: 35 scientists 75 D-Index: 52 scientists 76 D-Index: 50 scientists 77 D-Index: 32 scientists 78 D-Index: 37 scientists 79 D-Index: 20 scientists 80 D-Index: 33 scientists 81 D-Index: 36 scientists 82 D-Index: 34 scientists 83 D-Index: 34 scientists 84 D-Index: 24 scientists 85 D-Index: 19 scientists 86 D-Index: 18 scientists 87 D-Index: 26 scientists 88 D-Index: 30 scientists 89 D-Index: 17 scientists 90 D-Index: 21 scientists 91 D-Index: 19 scientists 92 D-Index: 15 scientists 93 D-Index: 14 scientists 94 D-Index: 20 scientists 95 D-Index: 9 scientists 96 D-Index: 10 scientists 97 D-Index: 15 scientists 98 D-Index: 13 scientists 99 D-Index: 3 scientists 100 D-Index: 13 scientists 101 D-Index: 3 scientists 102 D-Index: 9 scientists 103 D-Index: 4 scientists 104 D-Index: 6 scientists 105 D-Index: 6 scientists 106+ D-Index: 98 scientists
30 D-Index 106+

This scientist: 51 D-Index — 66th percentile

66% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 106 D-Index or more.

Overview

Urumu Tsunogai is affiliated with Nagoya University in Japan and has a research focus spanning Environmental Science and Earth and Planetary Sciences. Their work encompasses a variety of subfields including Environmental Chemistry, Atmospheric Science, Geochemistry and Petrology, Global and Planetary Change, and Ecology.

The scientist's research addresses key topics such as Groundwater and Isotope Geochemistry, Methane Hydrates and Related Phenomena, Atmospheric and Environmental Gas Dynamics, Soil and Water Nutrient Dynamics, Hydrology and Watershed Management Studies, Hydrocarbon Exploration and Reservoir Analysis, and Geology and Paleoclimatology Research.

They have contributed to several recent publications, including:

  • "Dual stable isotope characterization of excess methane in oxic waters of a mesotrophic lake," 2020, Limnology and Oceanography
  • "Vertical Changes in the Flux of Atmospheric Nitrate From a Forest Canopy to the Surface Soil Based on Δ17O Values," 2021, Journal of Geophysical Research Biogeosciences
  • "Development of a drone-borne volcanic plume sampler," 2021, Journal of Volcanology and Geothermal Research
  • "Behavior of magmatic components in fumarolic gases related to the 2018 phreatic eruption at Ebinokogen Ioyama volcano, Kirishima Volcanic Group, Kyushu, Japan," 2021, Earth Planets and Space
  • "Tracing the source of nitrate in a forested stream showing elevated concentrations during storm events," 2022, Biogeosciences

Their frequent collaborators include Fumiko Nakagawa, Masanori Ito, Takashi Sambuichi, Ryo Shingubara, and Weitian Ding.

Urumu Tsunogai has published extensively in journals such as the Journal of Volcanology and Geothermal Research, Biogeosciences, GEOCHEMICAL JOURNAL, Limnology and Oceanography, and Journal of Geophysical Research Biogeosciences. Among these, the Journal of Volcanology and Geothermal Research and Biogeosciences are notable venues where they have multiple contributions.

Best Publications

  • Cell proliferation at 122°C and isotopically heavy CH4 production by a hyperthermophilic methanogen under high-pressure cultivation

    Ken Takai;Kentaro Nakamura;Tomohiro Toki;Urumu Tsunogai

  • Precursory Chemical Changes in Ground Water: Kobe Earthquake, Japan

    Urumu Tsunogai;Hiroshi Wakita

  • Geochemical and microbiological evidence for a hydrogen-based, hyperthermophilic subsurface lithoautotrophic microbial ecosystem (HyperSLiME) beneath an active deep-sea hydrothermal field

    Ken Takai;Toshitaka Gamo;Urumu Tsunogai;Noriko Nakayama

  • Chemical characteristics of newly discovered black smoker fluids and associated hydrothermal plumes at the Rodriguez Triple Junction, Central Indian Ridge

    Toshitaka Gamo;Hitoshi Chiba;Toshiro Yamanaka;Takamoto Okudaira

  • Microbial community in a sediment-hosted CO2 lake of the southern Okinawa Trough hydrothermal system

    Fumio Inagaki;Marcel M. M. Kuypers;Urumu Tsunogai;Jun-ichiro Ishibashi

  • Megacities and large urban agglomerations in the coastal zone: interactions between atmosphere, land, and marine ecosystems.

    Roland von Glasow;Tim D. Jickells;Alexander Baklanov;Gregory R. Carmichael

  • Discrete Scaling in Earthquake Precursory Phenomena: Evidence in the Kobe Earthquake, Japan

    Anders Johansen;Didier Sornette;Hiroshi Wakita;Urumu Tsunogai

  • Characterization of C1-metabolizing prokaryotic communities in methane seep habitats at the Kuroshima Knoll, southern Ryukyu Arc, by analyzing pmoA, mmoX, mxaF, mcrA, and 16S rRNA genes.

    Fumio Inagaki;Urumu Tsunogai;Masae Suzuki;Ayako Kosaka

  • Geological background of the Kairei and Edmond hydrothermal fields along the Central Indian Ridge: Implications of their vent fluids’ distinct chemistry

    Hidenori Kumagai;K. Nakamura;K. Nakamura;T. Toki;T. Morishita

  • The GEOTRACES Intermediate Data Product 2014

    Edward Mawji;Reiner Schlitzer;Elena Masferrer Dodas;Cyril Abadie

  • Liquid CO2 venting on the seafloor: Yonaguni Knoll IV hydrothermal system, Okinawa Trough

    Uta Konno;Urumu Tsunogai;Fumiko Nakagawa;Miwako Nakaseama

  • Production mechanism and global budget of N2O inferred from its isotopomers in the western North Pacific

    Sakae Toyoda;Naohiro Yoshida;Tatsuya Miwa;Tatsuya Miwa;Yohei Matsui

  • Carbon isotopic distribution of methane in deep-sea hydrothermal plume, Myojin Knoll Caldera, Izu-Bonin arc: implications for microbial methane oxidation in the oceans and applications to heat flux estimation

    Urumu Tsunogai;Naohiro Yoshida;Junichiro Ishibashi;Toshitaka Gamo

  • Peculiar features of Suiyo Seamount hydrothermal fluids, Izu-Bonin Arc: Differences from subaerial volcanism

    U. Tsunogai;J. Ishibashi;H. Wakita;T. Gamo

  • Diverse Range of Mineralization Induced by Phase Separation of Hydrothermal Fluid: Case Study of the Yonaguni Knoll IV Hydrothermal Field in the Okinawa Trough Back-Arc Basin

    Ryohei Suzuki;Ryohei Suzuki;Jun Ichiro Ishibashi;Miwako Nakaseama;Uta Konno

  • Carbon isotopic compositions of C2‐C5 hydrocarbons and methyl chloride in urban, coastal, and maritime atmospheres over the western North Pacific

    Urumu Tsunogai;Naohiro Yoshida;Toshitaka Gamo

  • Technical Note: Determination of formaldehyde mixing ratios in air with PTR-MS: laboratory experiments and field measurements

    S. Inomata;H. Tanimoto;S. Kameyama;U. Tsunogai

  • Carbon isotopic characterization for the origin of excess methane in subsurface seawater

    Motoki Sasakawa;Motoki Sasakawa;Urumu Tsunogai;Sohiko Kameyama;Sohiko Kameyama;Sohiko Kameyama;Fumiko Nakagawa

  • Tracing the fate of atmospheric nitrate deposited onto a forest ecosystem in Eastern Asia using Δ 17 O

    U. Tsunogai;D. D. Komatsu;S. Daita;G. A. Kazemi;G. A. Kazemi

  • Archaeal diversity and distribution along thermal and geochemical gradients in hydrothermal sediments at the Yonaguni Knoll IV hydrothermal field in the Southern Okinawa trough.

    Takuro Nunoura;Hanako Oida;Miwako Nakaseama;Ayako Kosaka

Frequent Co-Authors

Toshitaka Gamo
Toshitaka Gamo University of Tokyo
Jun-ichiro Ishibashi
Jun-ichiro Ishibashi Kobe University
Juichiro Ashi
Juichiro Ashi University of Tokyo
Yuji Sano
Yuji Sano Kōchi University
Ken Takai
Ken Takai Japan Agency for Marine-Earth Science and Technology
Hiroshi Tanimoto
Hiroshi Tanimoto National Institute for Environmental Studies
Naohiro Yoshida
Naohiro Yoshida Tokyo Institute of Technology
Mitsuo Uematsu
Mitsuo Uematsu University of Tokyo
Fumio Inagaki
Fumio Inagaki Japan Agency for Marine-Earth Science and Technology
Hiroshi Wakita
Hiroshi Wakita University of Tokyo

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