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Highly Cited Researchers

Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers 366 Scientists Citation in Japan Rankings - 2026

See how widely and consistently research is cited with real-time citation rankings.
Covering 2.6 million scientists, this list evaluates both total and last 5 years’ citation counts to measure scientific influence and highlight Highly Cited Researchers.
Built on transparency, it also addresses unethical practices and encourages reporting of violations. Compare results across 13 fields and 221 disciplines.

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Total 366 scientists , 791 institution , Updates every 3 days
* Total Citation Counts Rankings

Rankings

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11,118
World Rank
Japan
138
Country Rank
Japan Meteorological Agency Logo
1
University
Ranking Based On Selection:
1
Akio Kitoh
Japan Meteorological Agency Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate Change | Monsoo

Citation Metrics

  • Total
    52,372
  • Last 5 Years
    19,531
  • Last 5 Years / Total
    0.373
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* Total Citation Counts Rankings

Rankings

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18,209
World Rank
Japan
223
Country Rank
Kyushu University Logo
7
University
Ranking Based On Selection:
2
Shunsuke Managi
Kyushu University Fukuoka, Japan
Engineering & Technology / Environmental Science & Engineering
Urban Analytics | Urban Policy | Sustainable Operations | Climate Change Economics | Wellbein

Citation Metrics

  • Total
    38,664
  • Last 5 Years
    28,431
  • Last 5 Years / Total
    0.735
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* Total Citation Counts Rankings

Rankings

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19,793
World Rank
Japan
252
Country Rank
Kyoto University Logo
20
University
Ranking Based On Selection:
3
Shinichiro Fujimori
Kyoto University Kyoto, Japan
Engineering & Technology / Environmental Science & Engineering
Climate change | Integrated Assessment Models | Energy modelin

Citation Metrics

  • Total
    36,600
  • Last 5 Years
    30,231
  • Last 5 Years / Total
    0.826
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* Total Citation Counts Rankings

Rankings

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22,302
World Rank
Japan
288
Country Rank
Tohoku University Logo
16
University
Ranking Based On Selection:
4
李玉友|李 玉友, Gyokuyu RI
Tohoku University Sendai, Japan
Engineering & Technology / Environmental Science & Engineering
Biological wastewater treatment | Biofilm | Anaerobic digestion | Anammox | MB

Citation Metrics

  • Total
    33,850
  • Last 5 Years
    22,410
  • Last 5 Years / Total
    0.662
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* Total Citation Counts Rankings

Rankings

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25,979
World Rank
Japan
349
Country Rank
University of Tokyo Logo
29
University
Ranking Based On Selection:
5
Yu Kosaka
University of Tokyo Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate Dynamics | Meteorolog

Citation Metrics

  • Total
    30,665
  • Last 5 Years
    18,482
  • Last 5 Years / Total
    0.603
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* Total Citation Counts Rankings

Rankings

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33,919
World Rank
Japan
479
Country Rank
University of Tokyo Logo
38
University
Ranking Based On Selection:
6
Ayako Abe Ouchi
University of Tokyo Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate | climate modelling | ice sheet dynamics | paleoclimatology | pale oceanograph

Citation Metrics

  • Total
    25,585
  • Last 5 Years
    13,133
  • Last 5 Years / Total
    0.513
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* Total Citation Counts Rankings

Rankings

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38,453
World Rank
Japan
557
Country Rank
Hokkaido University Logo
17
University
Ranking Based On Selection:
7
Shin Ichiro Noro
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
coordination chemistry | porous materials | metal-organic frameworks | porous coordination polymer

Citation Metrics

  • Total
    23,428
  • Last 5 Years
    5,144
  • Last 5 Years / Total
    0.220
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* Total Citation Counts Rankings

Rankings

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38,891
World Rank
Japan
562
Country Rank
Hirosaki University Logo
2
University
Ranking Based On Selection:
8
Yukihiro Nojiri
Hirosaki University Hirosaki, Japan
Engineering & Technology / Environmental Science & Engineering
oceanography | biogeochemistry | geochemistry | carbon cycle | climate chang

Citation Metrics

  • Total
    23,237
  • Last 5 Years
    7,073
  • Last 5 Years / Total
    0.304
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* Total Citation Counts Rankings

Rankings

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51,744
World Rank
Japan
800
Country Rank
National Institute for Environmental Studies, Japan Logo
3
University
Ranking Based On Selection:
9
Shamil Maksyutov
National Institute for Environmental Studies, Japan Ibaraki, Japan
Engineering & Technology / Environmental Science & Engineering
climate change | biogeochemistry | inverse modeling | data assimilation | remote sensin

Citation Metrics

  • Total
    18,891
  • Last 5 Years
    10,265
  • Last 5 Years / Total
    0.543
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* Total Citation Counts Rankings

Rankings

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67,094
World Rank
Japan
1,099
Country Rank
National Institute for Environmental Studies, Japan Logo
5
University
Ranking Based On Selection:
10
Hideo Shiogama
National Institute for Environmental Studies, Japan Ibaraki, Japan
Engineering & Technology / Environmental Science & Engineering
Climate Scienc

Citation Metrics

  • Total
    15,538
  • Last 5 Years
    9,481
  • Last 5 Years / Total
    0.610
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* Total Citation Counts Rankings

Rankings

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67,706
World Rank
Japan
1,111
Country Rank
United Nations University Logo
3
University
Ranking Based On Selection:
11
Vladimir Smakhtin
United Nations University Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Water | hydrology | floods | droughts | environmental flow

Citation Metrics

  • Total
    15,432
  • Last 5 Years
    7,895
  • Last 5 Years / Total
    0.512
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* Total Citation Counts Rankings

Rankings

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69,800
World Rank
Japan
1,163
Country Rank
Institute for Global Environmental Strategies (IGES) Logo
1
University
Ranking Based On Selection:
12
Kazuhiko Takeuchi
Institute for Global Environmental Strategies (IGES) San Nicolás, Japan
Engineering & Technology / Environmental Science & Engineering
environmental studie

Citation Metrics

  • Total
    15,068
  • Last 5 Years
    8,640
  • Last 5 Years / Total
    0.573
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* Total Citation Counts Rankings

Rankings

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71,221
World Rank
Japan
1,188
Country Rank
Hokkaido University Logo
36
University
Ranking Based On Selection:
13
Masaaki Kitajima
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Virology | Wastewater-based Epidemiolog

Citation Metrics

  • Total
    14,830
  • Last 5 Years
    12,590
  • Last 5 Years / Total
    0.849
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* Total Citation Counts Rankings

Rankings

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71,733
World Rank
Japan
1,195
Country Rank
National Institute for Environmental Studies, Japan Logo
7
University
Ranking Based On Selection:
14
Yasuaki Hijioka
National Institute for Environmental Studies, Japan Ibaraki, Japan
Engineering & Technology / Environmental Science & Engineering
Climate change impacts and adaptatio

Citation Metrics

  • Total
    14,746
  • Last 5 Years
    11,376
  • Last 5 Years / Total
    0.771
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* Total Citation Counts Rankings

Rankings

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75,293
World Rank
Japan
1,262
Country Rank
Hokkaido University Logo
40
University
Ranking Based On Selection:
15
Yasuhiro Yamanaka
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate Change | Ocean Science | Higher Education | Sustainable Touris

Citation Metrics

  • Total
    14,193
  • Last 5 Years
    4,474
  • Last 5 Years / Total
    0.315
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* Total Citation Counts Rankings

Rankings

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75,869
World Rank
Japan
1,279
Country Rank
Kobe University Logo
17
University
Ranking Based On Selection:
16
Toshifumi Minamoto
Kobe University Kobe, Japan
Engineering & Technology / Environmental Science & Engineering
eDNA Research | Freshwater Ecology | Ecology of Infectious Diseases | Animal Physiolog

Citation Metrics

  • Total
    14,107
  • Last 5 Years
    10,602
  • Last 5 Years / Total
    0.752
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* Total Citation Counts Rankings

Rankings

flag
76,152
World Rank
Japan
1,289
Country Rank
Japan Agency for Marine-Earth Science & Technology Logo
9
University
Ranking Based On Selection:
17
Kawamiya, Michio
Japan Agency for Marine-Earth Science & Technology Yokosuka, Japan
Engineering & Technology / Environmental Science & Engineering
Climate scienc

Citation Metrics

  • Total
    14,066
  • Last 5 Years
    5,532
  • Last 5 Years / Total
    0.393
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* Total Citation Counts Rankings

Rankings

flag
77,128
World Rank
Japan
1,314
Country Rank
Tohoku University Logo
68
University
Ranking Based On Selection:
18
Kiwamu Minamisawa
Tohoku University Sendai, Japan
Engineering & Technology / Environmental Science & Engineering
Plant-microbe interactions | rhizobial ecology | genome evolutio

Citation Metrics

  • Total
    13,909
  • Last 5 Years
    5,292
  • Last 5 Years / Total
    0.380
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* Total Citation Counts Rankings

Rankings

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78,265
World Rank
Japan
1,337
Country Rank
University of Tsukuba Logo
16
University
Ranking Based On Selection:
19
Zhongfang Lei
University of Tsukuba Tsukuba, Japan
Engineering & Technology / Environmental Science & Engineering
Waste and wastewater treatment | biogasification | nutrients removal and recovery | heavy metal

Citation Metrics

  • Total
    13,751
  • Last 5 Years
    10,502
  • Last 5 Years / Total
    0.764
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* Total Citation Counts Rankings

Rankings

flag
80,965
World Rank
Japan
1,387
Country Rank
Japan Meteorological Agency Logo
2
University
Ranking Based On Selection:
20
Masato Sugi
Japan Meteorological Agency Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
tropical cyclone | climate chang

Citation Metrics

  • Total
    13,376
  • Last 5 Years
    6,660
  • Last 5 Years / Total
    0.498
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* Total Citation Counts Rankings

Rankings

flag
83,521
World Rank
Japan
1,434
Country Rank
Ehime University Logo
9
University
Ranking Based On Selection:
21
Hisato Iwata
Ehime University Matsuyama, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Toxicology | Chemical Pollution | Environmental Chemistry | Ecotoxicology | Aquatic Toxicolog

Citation Metrics

  • Total
    13,040
  • Last 5 Years
    2,650
  • Last 5 Years / Total
    0.203
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* Total Citation Counts Rankings

Rankings

flag
89,189
World Rank
Japan
1,558
Country Rank
University of Tokyo Logo
84
University
Ranking Based On Selection:
22
Shinsuke Kato
University of Tokyo Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Building Enviromental Engineerin

Citation Metrics

  • Total
    12,369
  • Last 5 Years
    3,944
  • Last 5 Years / Total
    0.319
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* Total Citation Counts Rankings

Rankings

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95,296
World Rank
Japan
1,687
Country Rank
University of Aizu Logo
3
University
Ranking Based On Selection:
23
Saji Hameed
University of Aizu Aizuwakamatsu, Japan
Engineering & Technology / Environmental Science & Engineering
Climate dynamic

Citation Metrics

  • Total
    11,691
  • Last 5 Years
    4,653
  • Last 5 Years / Total
    0.398
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* Total Citation Counts Rankings

Rankings

flag
97,229
World Rank
Japan
1,729
Country Rank
Yokohama National University Logo
12
University
Ranking Based On Selection:
24
Shigeki Masunaga
Yokohama National University Yokohama, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Scienc

Citation Metrics

  • Total
    11,488
  • Last 5 Years
    4,138
  • Last 5 Years / Total
    0.360
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* Total Citation Counts Rankings

Rankings

flag
100,499
World Rank
Japan
1,807
Country Rank
Hokkaido University Logo
53
University
Ranking Based On Selection:
25
Ram Avtar
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Science | Remote Sensing | GIS | REDD+ | Sustainability Scienc

Citation Metrics

  • Total
    11,174
  • Last 5 Years
    10,307
  • Last 5 Years / Total
    0.922
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