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Japan 359 Scientists H-Index Engineering & Technology / Environmental Science & Engineering Rankings - 2026

This real-time ranking measures researchers’ academic productivity and impact at global, continental, national, and institutional levels using total and recent 5-year H-index data. Comparative analysis is available across 13 main fields and 221 academic disciplines.

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Total 359 scientist, 1 country, 98 institution , Updates every 3 days
* Total H Index Rankings

Rankings

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15,050
World Rank
Japan
197
Country Rank
Tohoku University Logo
12
University
Ranking Based On Selection:
1
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

H-Index Metrics

  • Total
    89
  • Last 5 Years
    74
  • Last 5 Years / Total
    0.831
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* Total H Index Rankings

Rankings

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15,705
World Rank
Japan
206
Country Rank
Kyushu University Logo
10
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

H-Index Metrics

  • Total
    88
  • Last 5 Years
    71
  • Last 5 Years / Total
    0.807
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* Total H Index Rankings

Rankings

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19,478
World Rank
Japan
280
Country Rank
University of Tokyo Logo
18
University
Ranking Based On Selection:
3
Ayako Abe Ouchi
University of Tokyo Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate | climate modelling | ice sheet dynamics | paleoclimatology | pale oceanograph

H-Index Metrics

  • Total
    83
  • Last 5 Years
    56
  • Last 5 Years / Total
    0.675
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* Total H Index Rankings

Rankings

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20,490
World Rank
Japan
298
Country Rank
Japan Meteorological Agency Logo
1
University
Ranking Based On Selection:
4
Akio Kitoh
Japan Meteorological Agency Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Climate Change | Monsoo

H-Index Metrics

  • Total
    82
  • Last 5 Years
    49
  • Last 5 Years / Total
    0.598
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* Total H Index Rankings

Rankings

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22,777
World Rank
Japan
341
Country Rank
Kyoto University Logo
31
University
Ranking Based On Selection:
5
Shinichiro Fujimori
Kyoto University Kyoto, Japan
Engineering & Technology / Environmental Science & Engineering
Climate change | Integrated Assessment Models | Energy modelin

H-Index Metrics

  • Total
    79
  • Last 5 Years
    69
  • Last 5 Years / Total
    0.873
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* Total H Index Rankings

Rankings

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49,873
World Rank
Japan
836
Country Rank
Tohoku University Logo
49
University
Ranking Based On Selection:
6
Kiwamu Minamisawa
Tohoku University Sendai, Japan
Engineering & Technology / Environmental Science & Engineering
Plant-microbe interactions | rhizobial ecology | genome evolutio

H-Index Metrics

  • Total
    62
  • Last 5 Years
    36
  • Last 5 Years / Total
    0.581
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* Total H Index Rankings

Rankings

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50,871
World Rank
Japan
864
Country Rank
University of Tsukuba Logo
13
University
Ranking Based On Selection:
7
Zhongfang Lei
University of Tsukuba Tsukuba, Japan
Engineering & Technology / Environmental Science & Engineering
Waste and wastewater treatment | biogasification | nutrients removal and recovery | heavy metal

H-Index Metrics

  • Total
    61
  • Last 5 Years
    54
  • Last 5 Years / Total
    0.885
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* Total H Index Rankings

Rankings

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52,901
World Rank
Japan
921
Country Rank
Hirosaki University Logo
3
University
Ranking Based On Selection:
8
Yukihiro Nojiri
Hirosaki University Hirosaki, Japan
Engineering & Technology / Environmental Science & Engineering
oceanography | biogeochemistry | geochemistry | carbon cycle | climate chang

H-Index Metrics

  • Total
    61
  • Last 5 Years
    29
  • Last 5 Years / Total
    0.475
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* Total H Index Rankings

Rankings

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57,681
World Rank
Japan
1,033
Country Rank
Yokohama National University Logo
8
University
Ranking Based On Selection:
9
Shigeki Masunaga
Yokohama National University Yokohama, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Scienc

H-Index Metrics

  • Total
    59
  • Last 5 Years
    33
  • Last 5 Years / Total
    0.559
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* Total H Index Rankings

Rankings

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57,682
World Rank
Japan
1,034
Country Rank
Mie University Logo
5
University
Ranking Based On Selection:
10
Satoshi Kaneco
Mie University Tsu, Japan
Engineering & Technology / Environmental Science & Engineering

H-Index Metrics

  • Total
    59
  • Last 5 Years
    33
  • Last 5 Years / Total
    0.559
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* Total H Index Rankings

Rankings

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65,079
World Rank
Japan
1,171
Country Rank
National Institute for Environmental Studies, Japan Logo
4
University
Ranking Based On Selection:
11
Hideo Shiogama
National Institute for Environmental Studies, Japan , Japan
Engineering & Technology / Environmental Science & Engineering
Climate Scienc

H-Index Metrics

  • Total
    56
  • Last 5 Years
    43
  • Last 5 Years / Total
    0.768
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* Total H Index Rankings

Rankings

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65,556
World Rank
Japan
1,176
Country Rank
National Institute for Environmental Studies, Japan Logo
5
University
Ranking Based On Selection:
12
Shamil Maksyutov
National Institute for Environmental Studies, Japan , Japan
Engineering & Technology / Environmental Science & Engineering
climate change | biogeochemistry | inverse modeling | data assimilation | remote sensin

H-Index Metrics

  • Total
    56
  • Last 5 Years
    39
  • Last 5 Years / Total
    0.696
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* Total H Index Rankings

Rankings

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67,377
World Rank
Japan
1,237
Country Rank
Ehime University Logo
8
University
Ranking Based On Selection:
13
Hisato Iwata
Ehime University Matsuyama, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Toxicology | Chemical Pollution | Environmental Chemistry | Ecotoxicology | Aquatic Toxicolog

H-Index Metrics

  • Total
    56
  • Last 5 Years
    23
  • Last 5 Years / Total
    0.411
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* Total H Index Rankings

Rankings

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68,049
World Rank
Japan
1,247
Country Rank
Hokkaido University Logo
42
University
Ranking Based On Selection:
14
Masaaki Kitajima
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Virology | Wastewater-based Epidemiolog

H-Index Metrics

  • Total
    55
  • Last 5 Years
    45
  • Last 5 Years / Total
    0.818
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* Total H Index Rankings

Rankings

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70,175
World Rank
Japan
1,281
Country Rank
University of Tokyo Logo
68
University
Ranking Based On Selection:
15
Shinsuke Kato
University of Tokyo Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Building Enviromental Engineerin

H-Index Metrics

  • Total
    55
  • Last 5 Years
    29
  • Last 5 Years / Total
    0.527
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* Total H Index Rankings

Rankings

flag
71,080
World Rank
Japan
1,304
Country Rank
Hokkaido University Logo
44
University
Ranking Based On Selection:
16
Ram Avtar
Hokkaido University Sapporo, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Science | Remote Sensing | GIS | REDD+ | Sustainability Scienc

H-Index Metrics

  • Total
    54
  • Last 5 Years
    50
  • Last 5 Years / Total
    0.926
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* Total H Index Rankings

Rankings

flag
74,475
World Rank
Japan
1,369
Country Rank
Nagoya University Logo
67
University
Ranking Based On Selection:
17
Takashi Hibino
Nagoya University Nagoya, Japan
Engineering & Technology / Environmental Science & Engineering
Fuel Cells | Electrolyzers | Sensors | Batterie

H-Index Metrics

  • Total
    54
  • Last 5 Years
    22
  • Last 5 Years / Total
    0.407
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* Total H Index Rankings

Rankings

flag
74,857
World Rank
Japan
1,376
Country Rank
Kobe University Logo
27
University
Ranking Based On Selection:
18
Toshifumi Minamoto
Kobe University Kobe, Japan
Engineering & Technology / Environmental Science & Engineering
eDNA Research | Freshwater Ecology | Ecology of Infectious Diseases | Animal Physiolog

H-Index Metrics

  • Total
    53
  • Last 5 Years
    48
  • Last 5 Years / Total
    0.906
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* Total H Index Rankings

Rankings

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76,346
World Rank
Japan
1,402
Country Rank
Institute for Global Environmental Strategies (IGES) Logo
1
University
Ranking Based On Selection:
19
Kazuhiko Takeuchi
Institute for Global Environmental Strategies (IGES) San Nicolás, Japan
Engineering & Technology / Environmental Science & Engineering
environmental studie

H-Index Metrics

  • Total
    53
  • Last 5 Years
    36
  • Last 5 Years / Total
    0.679
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* Total H Index Rankings

Rankings

flag
83,692
World Rank
Japan
1,555
Country Rank
United Nations University Logo
4
University
Ranking Based On Selection:
20
Vladimir Smakhtin
United Nations University Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
Water | hydrology | floods | droughts | environmental flow

H-Index Metrics

  • Total
    51
  • Last 5 Years
    39
  • Last 5 Years / Total
    0.765
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* Total H Index Rankings

Rankings

flag
86,240
World Rank
Japan
1,631
Country Rank
Shinshu University Logo
8
University
Ranking Based On Selection:
21
Takashi Kunito
Shinshu University Matsumoto, Japan
Engineering & Technology / Environmental Science & Engineering

H-Index Metrics

  • Total
    51
  • Last 5 Years
    26
  • Last 5 Years / Total
    0.510
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* Total H Index Rankings

Rankings

flag
87,522
World Rank
Japan
1,661
Country Rank
Tohoku University Logo
98
University
Ranking Based On Selection:
22
Tomoki Nakaya
Tohoku University Sendai, Japan
Engineering & Technology / Environmental Science & Engineering
GIScience | spatial analysis | health geography | crime geography | spatial epidemiolog

H-Index Metrics

  • Total
    50
  • Last 5 Years
    42
  • Last 5 Years / Total
    0.840
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* Total H Index Rankings

Rankings

flag
93,408
World Rank
Japan
1,794
Country Rank
National Agriculture and Food Research Organization Logo
9
University
Ranking Based On Selection:
23
Subbarao Guntur
National Agriculture and Food Research Organization , Japan
Engineering & Technology / Environmental Science & Engineering
Nitrification inhibition | Biological nitrification inhibition | nitrous oxide emissions | global warming | climate chang

H-Index Metrics

  • Total
    49
  • Last 5 Years
    35
  • Last 5 Years / Total
    0.714
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* Total H Index Rankings

Rankings

flag
94,546
World Rank
Japan
1,812
Country Rank
Kyushu University Logo
62
University
Ranking Based On Selection:
24
Satoshi Utsunomiya
Kyushu University Fukuoka, Japan
Engineering & Technology / Environmental Science & Engineering
Environmental Sciences | Mineralogy | Geochemistr

H-Index Metrics

  • Total
    49
  • Last 5 Years
    30
  • Last 5 Years / Total
    0.612
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* Total H Index Rankings

Rankings

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99,971
World Rank
Japan
1,938
Country Rank
Toyo University Logo
2
University
Ranking Based On Selection:
25
Yoshinori Kawase
Toyo University Tokyo, Japan
Engineering & Technology / Environmental Science & Engineering
wastewater treatment | stirred tank | photocatalyst | zero-valent iron | Fenton proces

H-Index Metrics

  • Total
    48
  • Last 5 Years
    27
  • Last 5 Years / Total
    0.563
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