World's Best Scientists 2026 revealed!
Youhei Yamashita

Youhei Yamashita

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Earth Science 40 5716 5288 153 142 91 7966

Youhei Yamashita publications per year

The chart shows the history of publications by Youhei Yamashita between 2001 and 2026, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Youhei Yamashita published across 26 years, from 2001 to 2026, averaging 5.1 papers a year. Output peaked at 12 publications in 2021. 11 of the 133 publications appeared in the last two years.

No. of publications
5 10
Bar chart. Horizontal axis: year, 2001 to 2026. Vertical axis: number of publications, 0 to 12. Peak 12 publications in 2021. 2001: 1 publication 2002: 0 publications 2003: 4 publications 2004: 3 publications 2005: 0 publications 2006: 3 publications 2007: 1 publication 2008: 4 publications 2009: 2 publications 2010: 8 publications 2011: 5 publications 2012: 2 publications 2013: 5 publications 2014: 7 publications 2015: 9 publications 2016: 3 publications 2017: 9 publications 2018: 4 publications 2019: 7 publications 2020: 10 publications 2021: 12 publications 2022: 8 publications 2023: 7 publications 2024: 8 publications 2025: 9 publications 2026: 2 publications
2001 2026

133 publications in total across all disciplines

View publications per year as a table
Youhei Yamashita: publications per year, 2001 to 2026
Year Publications
2001 1
2002 0
2003 4
2004 3
2005 0
2006 3
2007 1
2008 4
2009 2
2010 8
2011 5
2012 2
2013 5
2014 7
2015 9
2016 3
2017 9
2018 4
2019 7
2020 10
2021 12
2022 8
2023 7
2024 8
2025 9
2026 2
Total 133
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Youhei Yamashita 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 Youhei Yamashita sits on this spectrum.

No. of scientists
100 200 300 400 500
Bar chart with 58 bars. Horizontal axis: publications, 38–47 to 603+. Vertical axis: number of scientists, 0 to 557. Most scientists, 557, have 128–137 publications. The last bar groups every scientist with 603 publications or more. The highlighted bar, 88–97 publications, is where this scientist sits. 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
38–47 publications 603+

This scientist: 91 publications — 8th percentile

8% of scientists in this discipline score the same or lower.

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

View publications distribution as a table
Number of Earth Science scientists by publication count, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
Publications Scientists This scientist
38–47 5
48–57 33
58–67 94
68–77 161
78–87 278
88–97 376 91
98–107 404
108–117 484
118–127 540
128–137 557
138–147 491
148–157 495
158–167 458
168–177 490
178–187 414
188–197 401
198–207 333
208–217 292
218–227 290
228–237 262
238–247 243
248–257 208
258–267 185
268–277 147
278–287 128
288–297 119
298–307 120
308–317 107
318–327 93
328–337 87
338–347 64
348–357 87
358–367 60
368–377 60
378–387 34
388–397 50
398–407 44
408–417 31
418–427 39
428–437 27
438–447 36
448–457 27
458–467 29
468–477 30
478–487 19
488–497 15
498–507 18
508–517 19
518–527 16
528–537 10
538–547 11
548–557 14
558–567 11
568–577 7
578–587 14
588–597 5
598–602 4
603+ 100
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Youhei Yamashita 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 Youhei Yamashita sits on this spectrum.

No. of scientists
100 200 300
Bar chart with 77 bars. Horizontal axis: D-Index, 30 to 106+. Vertical axis: number of scientists, 0 to 389. Most scientists, 389, have 36 D-Index. The last bar groups every scientist with 106 D-Index or more. The highlighted bar, 40 D-Index, is where this scientist sits. 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: 40 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

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

View D-Index distribution as a table
Number of Earth Science scientists by D-index, Research.com 2026 ranking edition. Based on 9,176 ranked scientists.
D-Index Scientists This scientist
30 144
31 215
32 278
33 379
34 366
35 372
36 389
37 366
38 344
39 349
40 296 40
41 289
42 277
43 279
44 248
45 257
46 212
47 202
48 207
49 204
50 183
51 178
52 182
53 178
54 163
55 117
56 163
57 120
58 113
59 136
60 135
61 96
62 103
63 83
64 103
65 83
66 89
67 92
68 89
69 78
70 75
71 53
72 62
73 54
74 35
75 52
76 50
77 32
78 37
79 20
80 33
81 36
82 34
83 34
84 24
85 19
86 18
87 26
88 30
89 17
90 21
91 19
92 15
93 14
94 20
95 9
96 10
97 15
98 13
99 3
100 13
101 3
102 9
103 4
104 6
105 6
106+ 98
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Overview

Youhei Yamashita is a researcher affiliated with Hokkaido University in Japan with a focus in Earth and Planetary Sciences and Environmental Science. Their work prominently intersects the fields of Oceanography, Atmospheric Science, Ecology, Environmental Chemistry, and Industrial and Manufacturing Engineering.

The scientist's research concentrates on topics including Marine and coastal ecosystems, Methane Hydrates and Related Phenomena, Marine Biology and Ecology Research, Oceanographic and Atmospheric Processes, Microbial Community Ecology and Physiology, Ocean Acidification Effects and Responses, and Marine and environmental studies.

Their recent publications include:

  • Subpolar marginal seas fuel the North Pacific through the intermediate water at the termination of the global ocean circulation, 2020, Proceedings of the National Academy of Sciences
  • Eco-engineering approaches for ocean negative carbon emission, 2022, Science Bulletin
  • Shelf humic substances as carriers for basin-scale iron transport in the North Pacific, 2020, Scientific Reports
  • Relationships between dissolved black carbon and dissolved organic matter in streams, 2021, Chemosphere
  • A review: iron and nutrient supply in the subarctic Pacific and its impact on phytoplankton production, 2021, Journal of Oceanography

Frequent coauthors of Youhei Yamashita include:

  • Jun Nishioka
  • Toru Hirawake
  • Hajime Obata
  • Hiroshi Ogawa
  • Koji Suzuki

Their research is published frequently in the following venues:

  • Progress In Oceanography
  • Scientific Reports
  • Journal of Oceanography
  • Frontiers in Microbiology
  • Biogeosciences

Best Publications

  • Chemical characterization of protein-like fluorophores in DOM in relation to aromatic amino acids

    Youhei Yamashita;Eiichiro Tanoue

  • Unraveling the role of land use and microbial activity in shaping dissolved organic matter characteristics in stream ecosystems

    Clayton J. Williams;Youhei Yamashita;Henry F. Wilson;Rudolf Jaffé

  • Characterizing the interactions between trace metals and dissolved organic matter using excitation-emission matrix and parallel factor analysis.

    Youhei Yamashita;Rudolf Jaffé

  • Assessing the dynamics of dissolved organic matter (DOM) in coastal environments by excitation emission matrix fluorescence and parallel factor analysis (EEM-PARAFAC)

    Youhei Yamashita;Rudolf Jaffé;Nagamitsu Maie;Eiichiro Tanoue

  • Dissolved Organic Matter Characteristics Across a Subtropical Wetland's Landscape: Application of Optical Properties in the Assessment of Environmental Dynamics

    Youhei Yamashita;Youhei Yamashita;Leonard J. Scinto;Nagamitsu Maie;Nagamitsu Maie;Rudolf Jaffé

  • Production of bio-refractory fluorescent dissolved organic matter in the ocean interior

    Youhei Yamashita;Youhei Yamashita;Eiichiro Tanoue

  • Effects of Watershed History on Dissolved Organic Matter Characteristics in Headwater Streams

    Youhei Yamashita;Youhei Yamashita;Brian D. Kloeppel;Jennifer Knoepp;Gregory L. Zausen

  • Comparative study of dissolved organic matter from groundwater and surface water in the Florida coastal Everglades using multi-dimensional spectrofluorometry combined with multivariate statistics

    Meilian Chen;René M. Price;Youhei Yamashita;Rudolf Jaffé

  • Fluorescence characteristics of dissolved organic matter in the deep waters of the Okhotsk Sea and the northwestern North Pacific Ocean

    Youhei Yamashita;Rose M. Cory;Jun Nishioka;Kenshi Kuma

  • Optical characterization of dissolved organic matter in tropical rivers of the Guayana Shield, Venezuela

    Youhei Yamashita;Youhei Yamashita;Nagamitsu Maie;Henry Briceño;Rudolf Jaffé

  • Evaluating the distribution of terrestrial dissolved organic matter in a complex coastal ecosystem using fluorescence spectroscopy

    Youhei Yamashita;Joseph N. Boyer;Rudolf Jaffé

  • Photochemical and microbial alteration of dissolved organic matter in temperate headwater streams associated with different land use

    Yuehan Lu;James E. Bauer;Elizabeth A. Canuel;Youhei Yamashita

  • Assessing the spatial and temporal variability of dissolved organic matter in Liverpool Bay using excitation–emission matrix fluorescence and parallel factor analysis

    Youhei Yamashita;Anouska Panton;Claire Mahaffey;Rudolf Jaffé

  • Emerging concepts on microbial processes in the bathypelagic ocean-ecology, biogeochemistry, and genomics

    Toshi Nagata;Christian Tamburini;Javier Arístegui;Federico Baltar

  • Characterizing humic substances from estuarine soils and sediments by excitation-emission matrix spectroscopy and parallel factor analysis

    C. Santín;Y. Yamashita;X. L. Otero;M. Á. Álvarez

  • Distribution and alteration of amino acids in bulk DOM along a transect from bay to oceanic waters

    Youhei Yamashita;Eiichiro Tanoue

  • Dissolved Organic Matter in Headwater Streams: Compositional Variability across Climatic Regions of North America

    R. Jaffé;Y. Yamashita;N. Maie;W. T. Cooper

  • Fluorescent water-soluble organic aerosols in the High Arctic atmosphere

    Pingqing Fu;Kimitaka Kawamura;Jing Chen;Mingyue Qin

  • Fluorescence characteristics of size-fractionated dissolved organic matter: implications for a molecular assembly based structure?

    Cristina Romera-Castillo;Meilian Chen;Youhei Yamashita;Rudolf Jaffé

  • Chemical characteristics of amino acid-containing dissolved organic matter in seawater

    Youhei Yamashita;Eiichiro Tanoue

  • In situ production of chromophoric dissolved organic matter in coastal environments

    Youhei Yamashita;Eiichiro Tanoue

Frequent Co-Authors

Rudolf Jaffé
Rudolf Jaffé Florida International University
Jun Nishioka
Jun Nishioka Hokkaido University
Hajime Obata
Hajime Obata University of Tokyo
Hiroaki Saito
Hiroaki Saito University of Tokyo
Yuzo Miyazaki
Yuzo Miyazaki Hokkaido University
Kimitaka Kawamura
Kimitaka Kawamura Chubu University
Ichiro Yasuda
Ichiro Yasuda University of Tokyo
Jeremy B. Jones
Jeremy B. Jones University of Alaska Fairbanks
Ronald Benner
Ronald Benner University of South Carolina
Michihiro Mochida
Michihiro Mochida Nagoya University

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