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" (873,690 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: 4
Yusuke Yokoyama
Climate change
Sea level change
ice sheet history
geochemistry
paleoclimate
Metrics
H-Index
i10 Index
Citation
59
242
16,103
* Rankings
Ranking Based On Selection: 6
Kei Yoshimura
isotope hydrometeorology
land surface processes
paleo climate
Metrics
H-Index
i10 Index
Citation
45
130
8,810
* Rankings
Ranking Based On Selection: 8
Hideto Takami
Genomics
Metagenomics
Microbial Ecology
Microbiology
Metrics
H-Index
i10 Index
Citation
42
85
9,518

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* Rankings
Ranking Based On Selection: 11
Toshihiro Miyajima
biogeochemistry
chemical oceanography
ecosystem ecology
sedimentology
marine botany
Metrics
H-Index
i10 Index
Citation
34
72
3,590
* Rankings
Ranking Based On Selection: 12
Kentaroh Suzuki
Climate Science
Atmospheric Physics
Cloud and Aerosols
Metrics
H-Index
i10 Index
Citation
32
64
4,596
* Rankings
Ranking Based On Selection: 13
Hiroshi Niino
meteorology
physical oceanography
geophysical fluid dynamics
Metrics
H-Index
i10 Index
Citation
32
70
6,055
* Rankings
Ranking Based On Selection: 14
Kotaro Shirai
geochemistry
paleoceanography
paleontology
environmental science
Metrics
H-Index
i10 Index
Citation
29
80
2,858
* Rankings
Ranking Based On Selection: 16
Susumu Yoshizawa
Marine microbiology
Microbial ecology
Luminous bacteria
Rhodopsin
Metrics
H-Index
i10 Index
Citation
27
48
3,245
* Rankings
Ranking Based On Selection: 21
Kenji Matsuzaki
Paleoceanography
Micropaleontology
Geology
Radiolaria
Metrics
H-Index
i10 Index
Citation
17
21
699
* Rankings
Ranking Based On Selection: 22
Masashi Kiguchi
Monsoon variation climatology
Climatology
hydro-meteorology
climate change
water resources
Metrics
H-Index
i10 Index
Citation
16
24
1,178
* Rankings
Ranking Based On Selection: 25
Takanori Kodama
Planetary Science
Exoplanets
Habitability
Atmosphere
Metrics
H-Index
i10 Index
Citation
12
15
435
Satoru Okajima|岡島 悟
Storm Track
Climate Dynamics
Air-sea interactions
Climate Change
Meteorology
Metrics
H-Index
i10 Index
Citation
7
6
144
Ardhi Adhary Arbain
Meteorology
Climatology
Remote Sensing
Numerical Model
Aerosol Science
Metrics
H-Index
i10 Index
Citation
6
5
242
Rankings
Ranking Based On Selection: 1
Hodaka Kawahata
Metrics
H-Index
i10 Index
Citation Counts
66
205
15,685
Rankings
Ranking Based On Selection: 2
Masaki Satoh
Metrics
H-Index
i10 Index
Citation Counts
62
175
16,523
Rankings
Ranking Based On Selection: 3
Masahiro Watanabe
Metrics
H-Index
i10 Index
Citation Counts
61
157
19,874
Rankings
Ranking Based On Selection: 4
Yusuke Yokoyama
Metrics
H-Index
i10 Index
Citation Counts
59
242
16,103
Climate change
Sea level change
ice sheet history
geochemistry
paleoclimate
Rankings
Ranking Based On Selection: 5
Mitsuo Uematsu
Metrics
H-Index
i10 Index
Citation Counts
55
119
11,927
Rankings
Ranking Based On Selection: 6
Kei Yoshimura
Metrics
H-Index
i10 Index
Citation Counts
45
130
8,810
isotope hydrometeorology
land surface processes
paleo climate
Rankings
Ranking Based On Selection: 7
Ichiro Yasuda
Metrics
H-Index
i10 Index
Citation Counts
44
112
7,093
Rankings
Ranking Based On Selection: 8
Hideto Takami
Metrics
H-Index
i10 Index
Citation Counts
42
85
9,518
Rankings
Ranking Based On Selection: 9
Koji Inoue
Metrics
H-Index
i10 Index
Citation Counts
35
79
4,403
Rankings
Ranking Based On Selection: 10
Chuya Shinzato
Metrics
H-Index
i10 Index
Citation Counts
34
72
5,156

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

Rankings
Ranking Based On Selection: 11
Toshihiro Miyajima
Metrics
H-Index
i10 Index
Citation Counts
34
72
3,590
biogeochemistry
chemical oceanography
ecosystem ecology
sedimentology
marine botany
Rankings
Ranking Based On Selection: 12
Kentaroh Suzuki
Metrics
H-Index
i10 Index
Citation Counts
32
64
4,596
Rankings
Ranking Based On Selection: 13
Hiroshi Niino
Metrics
H-Index
i10 Index
Citation Counts
32
70
6,055
meteorology
physical oceanography
geophysical fluid dynamics
Rankings
Ranking Based On Selection: 14
Kotaro Shirai
Metrics
H-Index
i10 Index
Citation Counts
29
80
2,858
geochemistry
paleoceanography
paleontology
environmental science
Rankings
Ranking Based On Selection: 15
Bunmei Taguchi
Metrics
H-Index
i10 Index
Citation Counts
28
50
3,275
Rankings
Ranking Based On Selection: 16
Susumu Yoshizawa
Metrics
H-Index
i10 Index
Citation Counts
27
48
3,245
Marine microbiology
Microbial ecology
Luminous bacteria
Rhodopsin
Rankings
Ranking Based On Selection: 18
Shinji Kanda
Metrics
H-Index
i10 Index
Citation Counts
24
32
2,113
Rankings
Ranking Based On Selection: 19
Kuroda Junichiro
Metrics
H-Index
i10 Index
Citation Counts
23
38
2,556
Rankings
Ranking Based On Selection: 20
Takafumi Miyasaka
Metrics
H-Index
i10 Index
Citation Counts
23
28
1,474
Rankings
Ranking Based On Selection: 21
Kenji Matsuzaki
Metrics
H-Index
i10 Index
Citation Counts
17
21
699
Rankings
Ranking Based On Selection: 22
Masashi Kiguchi
Metrics
H-Index
i10 Index
Citation Counts
16
24
1,178
Monsoon variation climatology
Climatology
hydro-meteorology
climate change
water resources
Rankings
Ranking Based On Selection: 23
Daigo Yanagimoto
Metrics
H-Index
i10 Index
Citation Counts
14
20
810
Rankings
Ranking Based On Selection: 24
Tomoki Miyakawa
Metrics
H-Index
i10 Index
Citation Counts
13
13
909
Rankings
Ranking Based On Selection: 25
Takanori Kodama
Metrics
H-Index
i10 Index
Citation Counts
12
15
435
Rankings
Ranking Based On Selection: 26
Kinya Toride
Metrics
H-Index
i10 Index
Citation Counts
10
10
265
Rankings
Ranking Based On Selection: 27
Satoru Okajima|岡島 悟
Metrics
H-Index
i10 Index
Citation Counts
7
6
144
Storm Track
Climate Dynamics
Air-sea interactions
Climate Change
Meteorology
Rankings
Ranking Based On Selection: 28
Ardhi Adhary Arbain
Metrics
H-Index
i10 Index
Citation Counts
6
5
242
Meteorology
Climatology
Remote Sensing
Numerical Model
Aerosol Science
Rankings
Ranking Based On Selection: 29
Qing He
Metrics
H-Index
i10 Index
Citation Counts
4
1
72