World's Best Scientists 2026 revealed!

D-Index & Metrics

Engineering and Technology

D-Index
43
Citations
7718
World Ranking
6134
National Ranking
1708

Tetsu K. Tokunaga publication distribution in Engineering and Technology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Engineering and Technology in 2026. The highlighted bar marks where Tetsu K. Tokunaga sits on this spectrum.

38–47 publications: 20 scientists 48–57 publications: 35 scientists 58–67 publications: 96 scientists 68–77 publications: 135 scientists 78–87 publications: 190 scientists 88–97 publications: 259 scientists 98–107 publications: 283 scientists 108–117 publications: 369 scientists 118–127 publications: 341 scientists 128–137 publications: 386 scientists 138–147 publications: 372 scientists 148–157 publications: 457 scientists 158–167 publications: 415 scientists 168–177 publications: 407 scientists 178–187 publications: 421 scientists 188–197 publications: 378 scientists 198–207 publications: 403 scientists 208–217 publications: 317 scientists 218–227 publications: 346 scientists 228–237 publications: 321 scientists 238–247 publications: 260 scientists 248–257 publications: 280 scientists 258–267 publications: 240 scientists 268–277 publications: 214 scientists 278–287 publications: 242 scientists 288–297 publications: 203 scientists 298–307 publications: 166 scientists 308–317 publications: 154 scientists 318–327 publications: 175 scientists 328–337 publications: 159 scientists 338–347 publications: 99 scientists 348–357 publications: 131 scientists 358–367 publications: 106 scientists 368–377 publications: 118 scientists 378–387 publications: 97 scientists 388–397 publications: 108 scientists 398–407 publications: 82 scientists 408–417 publications: 71 scientists 418–427 publications: 64 scientists 428–437 publications: 55 scientists 438–447 publications: 54 scientists 448–457 publications: 60 scientists 458–467 publications: 47 scientists 468–477 publications: 40 scientists 478–487 publications: 30 scientists 488–497 publications: 29 scientists 498–507 publications: 38 scientists 508–517 publications: 40 scientists 518–527 publications: 32 scientists 528–537 publications: 23 scientists 538–547 publications: 28 scientists 548–557 publications: 23 scientists 558–567 publications: 19 scientists 568–577 publications: 16 scientists 578–587 publications: 17 scientists 588–597 publications: 18 scientists 598–607 publications: 22 scientists 608–617 publications: 15 scientists 618–627 publications: 9 scientists 628–637 publications: 11 scientists 638–647 publications: 21 scientists 648–657 publications: 12 scientists 658–667 publications: 9 scientists 668–677 publications: 11 scientists 678–687 publications: 9 scientists 688–697 publications: 6 scientists 698–707 publications: 14 scientists 708–717 publications: 7 scientists 718–727 publications: 8 scientists 728–737 publications: 10 scientists 738–747 publications: 9 scientists 748–757 publications: 5 scientists 758–767 publications: 5 scientists 768–777 publications: 11 scientists 778–787 publications: 7 scientists 788–797 publications: 2 scientists 798–803 publications: 4 scientists 804+ publications: 100 scientists
38 publications 804+

This scientist: 163 publications — 33rd percentile

33% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 804 publications or more.

Tetsu K. Tokunaga D-index placement in Engineering and Technology in 2026

The chart shows the D-index (discipline H-index) distribution of Engineering and Technology scientists ranked by Research.com in 2026. The highlighted bar marks where Tetsu K. Tokunaga sits on this spectrum.

30 D-Index: 59 scientists 31 D-Index: 114 scientists 32 D-Index: 129 scientists 33 D-Index: 189 scientists 34 D-Index: 200 scientists 35 D-Index: 262 scientists 36 D-Index: 311 scientists 37 D-Index: 312 scientists 38 D-Index: 350 scientists 39 D-Index: 385 scientists 40 D-Index: 348 scientists 41 D-Index: 362 scientists 42 D-Index: 426 scientists 43 D-Index: 380 scientists 44 D-Index: 310 scientists 45 D-Index: 341 scientists 46 D-Index: 301 scientists 47 D-Index: 306 scientists 48 D-Index: 271 scientists 49 D-Index: 246 scientists 50 D-Index: 210 scientists 51 D-Index: 253 scientists 52 D-Index: 213 scientists 53 D-Index: 221 scientists 54 D-Index: 195 scientists 55 D-Index: 186 scientists 56 D-Index: 170 scientists 57 D-Index: 167 scientists 58 D-Index: 166 scientists 59 D-Index: 144 scientists 60 D-Index: 152 scientists 61 D-Index: 141 scientists 62 D-Index: 138 scientists 63 D-Index: 131 scientists 64 D-Index: 118 scientists 65 D-Index: 114 scientists 66 D-Index: 119 scientists 67 D-Index: 95 scientists 68 D-Index: 87 scientists 69 D-Index: 77 scientists 70 D-Index: 89 scientists 71 D-Index: 69 scientists 72 D-Index: 54 scientists 73 D-Index: 46 scientists 74 D-Index: 55 scientists 75 D-Index: 54 scientists 76 D-Index: 49 scientists 77 D-Index: 53 scientists 78 D-Index: 46 scientists 79 D-Index: 28 scientists 80 D-Index: 39 scientists 81 D-Index: 36 scientists 82 D-Index: 24 scientists 83 D-Index: 26 scientists 84 D-Index: 36 scientists 85 D-Index: 18 scientists 86 D-Index: 25 scientists 87 D-Index: 19 scientists 88 D-Index: 26 scientists 89 D-Index: 27 scientists 90 D-Index: 23 scientists 91 D-Index: 15 scientists 92 D-Index: 12 scientists 93 D-Index: 9 scientists 94 D-Index: 15 scientists 95 D-Index: 10 scientists 96 D-Index: 13 scientists 97 D-Index: 13 scientists 98 D-Index: 9 scientists 99 D-Index: 7 scientists 100 D-Index: 7 scientists 101 D-Index: 8 scientists 102 D-Index: 7 scientists 103 D-Index: 7 scientists 104 D-Index: 9 scientists 105 D-Index: 6 scientists 106 D-Index: 9 scientists 107+ D-Index: 99 scientists
30 D-Index 107+

This scientist: 43 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 107 D-Index or more.

Overview

Tetsu K. Tokunaga is affiliated with the Lawrence Berkeley National Laboratory in the United States. Their research primarily spans the fields of engineering and environmental science, with a focus on environmental engineering, ocean engineering, mechanics of materials, water science and technology, and geochemistry and petrology.

The scientist's work addresses several key topics including:

  • Hydrocarbon exploration and reservoir analysis
  • Enhanced oil recovery techniques
  • Groundwater flow and contamination studies
  • Hydrology and watershed management studies
  • Groundwater and isotope geochemistry
  • Soil and water nutrient dynamics
  • CO2 sequestration and geologic interactions

Tetsu K. Tokunaga has contributed to multiple scientific publications, with frequent appearances in venues such as the OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information), Water Resources Research, Gas Science and Engineering, Nature Geoscience, and Energy & Fuels.

Significant recent papers include:

  • "Bedrock weathering contributes to subsurface reactive nitrogen and nitrous oxide emissions," 2021, Nature Geoscience
  • "Impacts of Mixed-Wettability on Brine Drainage and Supercritical CO2 Storage Efficiency in a 2.5-D Heterogeneous Micromodel," 2020, Water Resources Research
  • "Simplified Green-Ampt Model, Imbibition-Based Estimates of Permeability, and Implications for Leak-off in Hydraulic Fracturing," 2020, Water Resources Research
  • "Impacts of Pore Network-Scale Wettability Heterogeneity on Immiscible Fluid Displacement: A Micromodel Study," 2021, Water Resources Research
  • "Quantifying Subsurface Flow and Solute Transport in a Snowmelt-Recharged Hillslope With Multiyear Water Balance," 2022, Water Resources Research

The scientist collaborates frequently with several researchers, including:

  • Jiamin Wan
  • Curtis Beutler
  • Kenneth H. Williams
  • Wenming Dong
  • Markus Bill

Best Publications

  • Application of a High-Density Oligonucleotide Microarray Approach To Study Bacterial Population Dynamics during Uranium Reduction and Reoxidation

    Eoin L. Brodie;Eoin L. Brodie;Todd Z. DeSantis;Dominique C. Joyner;Seung M. Baek

  • Kinetic stability of hematite nanoparticles: the effect of particle sizes

    Y. Thomas He;Jiamin Wan;Tetsu Tokunaga

  • WATER FILM FLOW ALONG FRACTURE SURFACES OF POROUS ROCK

    Tetsu K. Tokunaga;Jiamin Wan

  • Film Straining of Colloids in Unsaturated Porous Media: Conceptual Model and Experimental Testing

    Jiamin Wan;Tetsu K. Tokunaga

  • Dewetting of Silica Surfaces upon Reactions with Supercritical CO2 and Brine: Pore-Scale Studies in Micromodels

    Yongman Kim;Jiamin Wan;Timothy J. Kneafsey;Tetsu K. Tokunaga

  • Reoxidation of Bioreduced Uranium Under Reducing Conditions

    Jiamin Wan;Tetsu K. Tokunaga;Eoin Brodie;Zheming Wang

  • Quantitative Speciation of Selenium in Soils Using X-ray Absorption Spectroscopy

    Ingrid J. Pickering;Gordon E. Brown;Tetsu K. Tokunaga

  • The East River, Colorado, watershed: A mountainous community testbed for improving predictive understanding of multiscale hydrological–biogeochemical dynamics

    Susan S. Hubbard;Kenneth Hurst Williams;Deb Agarwal;Jillian Banfield

  • Hydraulic properties of adsorbed water films in unsaturated porous media

    Tetsu K. Tokunaga

  • Wettability and Flow Rate Impacts on Immiscible Displacement: A Theoretical Model

    Ran Hu;Jiamin Wan;Zhibing Yang;Yi‐Feng Chen

  • Generation of stable microbubbles and their transport through porous media

    Jiamin Wan;Srinivas Veerapaneni;Fred Gadelle;Tetsu K. Tokunaga

  • Organic carbon distribution, speciation, and elemental correlations within soil microaggregates: applications of STXM and NEXAFS spectroscopy

    Jiamin Wan;Tolek Tyliszczak;Tetsu K. Tokunaga

  • Partitioning of Clay Colloids at Air–Water Interfaces

    Jiamin Wan;Tetsu K. Tokunaga

  • DLVO-based estimates of adsorbed water film thicknesses in geologic CO2 reservoirs.

    Tetsu K. Tokunaga

  • Influence of calcium carbonate on U(VI) sorption to soils.

    Zuoping Zheng;Tetsu K. Tokunaga;Jiamin Wan

  • Physicochemical controls on adsorbed water film thickness in unsaturated geological media

    Tetsu K. Tokunaga

  • Wettability impact on supercritical CO2 capillary trapping: Pore-scale visualization and quantification

    Ran Hu;Jiamin Wan;Yongman Kim;Tetsu K. Tokunaga

  • Improved Glass Micromodel Methods for Studies of Flow and Transport in Fractured Porous Media

    Jiamin Wan;Tetsu K. Tokunaga;Chin-Fu Tsang;Gudmundur S. Bodvarsson

  • Influence of wettability and permeability heterogeneity on miscible CO2 flooding efficiency

    Prem Bikkina;Jiamin Wan;Yongman Kim;Timothy J. Kneafsey

  • Selenium Transformations in Ponded Sediments

    Tetsu K. Tokunaga;Ingrid J. Pickering;Gordon E. Brown

  • In situ reduction of chromium(VI) in heavily contaminated soils through organic carbon amendment.

    Tetsu K. Tokunaga;Jiamin Wan;Mary K. Firestone;Terry C. Hazen

Frequent Co-Authors

Jiamin Wan
Jiamin Wan Lawrence Berkeley National Laboratory
Kenneth H. Williams
Kenneth H. Williams Lawrence Berkeley National Laboratory
Terry C. Hazen
Terry C. Hazen University of Tennessee at Knoxville
Eoin L. Brodie
Eoin L. Brodie Lawrence Berkeley National Laboratory
Susan S. Hubbard
Susan S. Hubbard Lawrence Berkeley National Laboratory
Mary K. Firestone
Mary K. Firestone University of California, Berkeley
Stephen R. Sutton
Stephen R. Sutton University of Chicago
Mark E. Conrad
Mark E. Conrad Lawrence Berkeley National Laboratory
Matthew Newville
Matthew Newville University of Chicago
Carl I. Steefel
Carl I. Steefel Lawrence Berkeley National Laboratory

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