Top 100 Scientists

World Top 100 Scientists 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (870,057 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Ayako Abe Ouchi
Climate
climate modelling
ice sheet dynamics
paleoclimatology
pale oceanography
Metrics
H-Index
i10 Index
Citation
80
222
22,553
* Rankings
Ranking Based On Selection: 5
Gowhar Meraj|G. Meraj
Ecosystem Services Assessment
Economic Evaluation
Land Surface Modelling
Simulation Modeling
Metrics
H-Index
i10 Index
Citation
39
77
4,060
* Rankings
Ranking Based On Selection: 6
Fumiyuki Nakajima
Environmental Engineering
Water Environment
Aquatic Ecotoxicology
Diffuse Pollution
Urban Drainage
Metrics
H-Index
i10 Index
Citation
37
79
3,737
* Rankings
Ranking Based On Selection: 8
Liang Yunfeng
Environment and Resource System Engineering
NanoGeosciences
High-Pressure Physics
First-Principles
Molecular Dynamics
Metrics
H-Index
i10 Index
Citation
29
57
2,705

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* Rankings
Ranking Based On Selection: 13
Osamu Sawai
Supercritical fluids
Nanomaterials
Wastewater treatment
Metrics
H-Index
i10 Index
Citation
10
11
329
Martiwi Diah Setiawati
Remote Sensing
habitat studies
climate change adaptation
Index Development
Water
Metrics
H-Index
i10 Index
Citation
9
9
492
Hyun Bae Kim
Environmental engineering
Building physics
Biomass utilization
Sustainability
PCM
Metrics
H-Index
i10 Index
Citation
7
5
200
Chengyao Zhang
Carbon neutral
Plastic recycling
Energy policy and climate change
Water resources management
Metrics
H-Index
i10 Index
Citation
5
5
521
Marvin Xiang Ce Seow
Climate dynamics
Atmospheric science
Air-ocean interaction
Environmental science
Metrics
H-Index
i10 Index
Citation
3
0
24
Aziz Omonov
Remote sensing
Environmental Engineering
Water resources management
Agriculture
Metrics
H-Index
i10 Index
Citation
1
0
2
Rankings
Ranking Based On Selection: 1
Ayako Abe Ouchi
Metrics
H-Index
i10 Index
Citation Counts
80
222
22,553
Climate
climate modelling
ice sheet dynamics
paleoclimatology
pale oceanography
Rankings
Ranking Based On Selection: 2
Shinsuke Kato
Metrics
H-Index
i10 Index
Citation Counts
54
241
11,623
Rankings
Ranking Based On Selection: 3
Fukushi Kensuke
Metrics
H-Index
i10 Index
Citation Counts
47
94
6,503
Rankings
Ranking Based On Selection: 4
Yu Kosaka
Metrics
H-Index
i10 Index
Citation Counts
42
84
10,759
Rankings
Ranking Based On Selection: 5
Gowhar Meraj|G. Meraj
Metrics
H-Index
i10 Index
Citation Counts
39
77
4,060
Ecosystem Services Assessment
Economic Evaluation
Land Surface Modelling
Simulation Modeling
Rankings
Ranking Based On Selection: 6
Fumiyuki Nakajima
Metrics
H-Index
i10 Index
Citation Counts
37
79
3,737
Environmental Engineering
Water Environment
Aquatic Ecotoxicology
Diffuse Pollution
Urban Drainage
Rankings
Ranking Based On Selection: 7
Yohey Hashimoto
Metrics
H-Index
i10 Index
Citation Counts
34
57
4,921
Rankings
Ranking Based On Selection: 8
Liang Yunfeng
Metrics
H-Index
i10 Index
Citation Counts
29
57
2,705
Environment and Resource System Engineering
NanoGeosciences
High-Pressure Physics
First-Principles
Molecular Dynamics
Rankings
Ranking Based On Selection: 9
Jesus Alberto Pulido Arcas
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,337
Rankings
Ranking Based On Selection: 10
Tomihiko Higuchi
Metrics
H-Index
i10 Index
Citation Counts
19
33
1,199

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Rankings
Ranking Based On Selection: 11
Keitarou Hara
Metrics
H-Index
i10 Index
Citation Counts
16
30
1,085
Rankings
Ranking Based On Selection: 12
Narong Touch
Metrics
H-Index
i10 Index
Citation Counts
11
12
429
Rankings
Ranking Based On Selection: 13
Osamu Sawai
Metrics
H-Index
i10 Index
Citation Counts
10
11
329
Rankings
Ranking Based On Selection: 14
Martiwi Diah Setiawati
Metrics
H-Index
i10 Index
Citation Counts
9
9
492
Remote Sensing
habitat studies
climate change adaptation
Index Development
Water
Rankings
Ranking Based On Selection: 15
Hyun Bae Kim
Metrics
H-Index
i10 Index
Citation Counts
7
5
200
Environmental engineering
Building physics
Biomass utilization
Sustainability
PCM
Rankings
Ranking Based On Selection: 16
Chengyao Zhang
Metrics
H-Index
i10 Index
Citation Counts
5
5
521
Carbon neutral
Plastic recycling
Energy policy and climate change
Water resources management
Rankings
Ranking Based On Selection: 17
Marvin Xiang Ce Seow
Metrics
H-Index
i10 Index
Citation Counts
3
0
24
Climate dynamics
Atmospheric science
Air-ocean interaction
Environmental science
Rankings
Ranking Based On Selection: 18
Aziz Omonov
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
Remote sensing
Environmental Engineering
Water resources management
Agriculture