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: 2
Kenneth S Johnson
oceanography
marine chemistry
biogeochemistry
chemical sensors
sensor networks
Metrics
H-Index
i10 Index
Citation
88
199
28,139
* Rankings
Ranking Based On Selection: 7
Alexandra Z Worden
Ecology
Evolution
Carbon cycle
Oceanography
Microbial Interactions
Metrics
H-Index
i10 Index
Citation
55
97
13,659

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
Steven Haddock
Bioluminescence
Zooplankton
Ctenophores
Transcriptomics
Fluorescence
Metrics
H-Index
i10 Index
Citation
47
115
12,491
* Rankings
Ranking Based On Selection: 17
Kevan Yamahara
Water Quality
Pathogens
Environmental DNA
In-situ Monitoring
Metrics
H-Index
i10 Index
Citation
28
35
4,641
* Rankings
Ranking Based On Selection: 20
Cl Huffard
Blue carbon
Deep-sea ecology
Octopus behavior
Marine conservation
Carbon flux
Metrics
H-Index
i10 Index
Citation
26
49
2,734
* Rankings
Ranking Based On Selection: 25
Kakani Katija
Biological fluid dynamics
in situ instrumentation
bio-inspired design
ecology of marine invertebrates
ocean imaging
Metrics
H-Index
i10 Index
Citation
22
32
2,280
* Rankings
Ranking Based On Selection: 26
Lonny Lundsten
deep-sea ecology
seamount ecology
invertebrate taxonomy
marine debris
machine learning
Metrics
H-Index
i10 Index
Citation
22
28
1,884
* Rankings
Ranking Based On Selection: 27
Roberto Gwiazda
marine geology
earth surface processes
sediment transport
paleoceanography
Metrics
H-Index
i10 Index
Citation
22
23
2,613
* Rankings
Ranking Based On Selection: 30
Duane R Edgington
Ocean
Computer Vision
Machine Learning
Sensor Network
Environment
Metrics
H-Index
i10 Index
Citation
19
21
1,222
* Rankings
Ranking Based On Selection: 31
Chang Jae Choi
phytoplankton ecology
microbial diversity
microbial interactions
Metrics
H-Index
i10 Index
Citation
18
19
3,095
* Rankings
Ranking Based On Selection: 32
Re Sherlock
Marine Ecology
Mesopelagic Ecology
Ecological Time Series
Invertebrates
Metrics
H-Index
i10 Index
Citation
16
20
1,148
* Rankings
Ranking Based On Selection: 37
Carlos A Rueda-Velásquez
scientific data management
semantic web
visualization
Metrics
H-Index
i10 Index
Citation
12
16
1,451
William Z Haskell
Marine biogeochemistry
Biological production
Carbon export
Physicochemical dynamics
Autonomous platforms
Metrics
H-Index
i10 Index
Citation
9
9
248
Rankings
Ranking Based On Selection: 1
FP Chavez
Metrics
H-Index
i10 Index
Citation Counts
106
283
45,736
Rankings
Ranking Based On Selection: 2
Kenneth S Johnson
Metrics
H-Index
i10 Index
Citation Counts
88
199
28,139
oceanography
marine chemistry
biogeochemistry
chemical sensors
sensor networks
Rankings
Ranking Based On Selection: 3
Robert Vrijenhoek
Metrics
H-Index
i10 Index
Citation Counts
83
201
40,826
Rankings
Ranking Based On Selection: 4
David A Clague
Metrics
H-Index
i10 Index
Citation Counts
81
251
23,152
Rankings
Ranking Based On Selection: 5
Peter G Brewer
Metrics
H-Index
i10 Index
Citation Counts
77
178
25,278
Rankings
Ranking Based On Selection: 6
James P Barry
Metrics
H-Index
i10 Index
Citation Counts
57
140
15,940
Rankings
Ranking Based On Selection: 7
Alexandra Z Worden
Metrics
H-Index
i10 Index
Citation Counts
55
97
13,659
Ecology
Evolution
Carbon cycle
Oceanography
Microbial Interactions
Rankings
Ranking Based On Selection: 8
Charles Geoffrey Wheat
Metrics
H-Index
i10 Index
Citation Counts
53
124
8,292
Rankings
Ranking Based On Selection: 9
Bruce H Robison
Metrics
H-Index
i10 Index
Citation Counts
49
113
9,776
Rankings
Ranking Based On Selection: 10
William Ussler
Metrics
H-Index
i10 Index
Citation Counts
49
75
8,975

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
Steven Haddock
Metrics
H-Index
i10 Index
Citation Counts
47
115
12,491
Bioluminescence
Zooplankton
Ctenophores
Transcriptomics
Fluorescence
Rankings
Ranking Based On Selection: 12
David W Caress
Metrics
H-Index
i10 Index
Citation Counts
42
80
5,430
Rankings
Ranking Based On Selection: 13
Kelly Benoit-Bird
Metrics
H-Index
i10 Index
Citation Counts
40
77
4,978
Biological Oceanography
Community Ecology
Behavioral Ecology
Rankings
Ranking Based On Selection: 14
Christina Preston
Metrics
H-Index
i10 Index
Citation Counts
38
54
11,166
Rankings
Ranking Based On Selection: 15
James M Birch
Metrics
H-Index
i10 Index
Citation Counts
32
53
4,859
Rankings
Ranking Based On Selection: 16
Yuichiro Takeshita
Metrics
H-Index
i10 Index
Citation Counts
28
44
3,835
Autonomous Chemical Sensors
Ocean Acidification
Carbon cycle
Rankings
Ranking Based On Selection: 17
Kevan Yamahara
Metrics
H-Index
i10 Index
Citation Counts
28
35
4,641
Water Quality
Pathogens
Environmental DNA
In-situ Monitoring
Rankings
Ranking Based On Selection: 18
Sebastian Sudek
Metrics
H-Index
i10 Index
Citation Counts
26
30
3,554
Rankings
Ranking Based On Selection: 19
Yanwu Zhang
Metrics
H-Index
i10 Index
Citation Counts
26
51
2,239
Rankings
Ranking Based On Selection: 20
Cl Huffard
Metrics
H-Index
i10 Index
Citation Counts
26
49
2,734
Blue carbon
Deep-sea ecology
Octopus behavior
Marine conservation
Carbon flux
Rankings
Ranking Based On Selection: 21
Steven Y Litvin
Metrics
H-Index
i10 Index
Citation Counts
26
44
3,281
Rankings
Ranking Based On Selection: 22
Brett W Hobson
Metrics
H-Index
i10 Index
Citation Counts
25
47
2,024
Rankings
Ranking Based On Selection: 23
Monique Messié
Metrics
H-Index
i10 Index
Citation Counts
24
34
3,235
Oceanography
Physical/biological interactions
Marine ecosystems
Rankings
Ranking Based On Selection: 24
Jennifer Paduan
Metrics
H-Index
i10 Index
Citation Counts
23
37
2,176
Rankings
Ranking Based On Selection: 25
Kakani Katija
Metrics
H-Index
i10 Index
Citation Counts
22
32
2,280
Biological fluid dynamics
in situ instrumentation
bio-inspired design
ecology of marine invertebrates
ocean imaging
Rankings
Ranking Based On Selection: 26
Lonny Lundsten
Metrics
H-Index
i10 Index
Citation Counts
22
28
1,884
deep-sea ecology
seamount ecology
invertebrate taxonomy
marine debris
machine learning
Rankings
Ranking Based On Selection: 27
Roberto Gwiazda
Metrics
H-Index
i10 Index
Citation Counts
22
23
2,613
marine geology
earth surface processes
sediment transport
paleoceanography
Rankings
Ranking Based On Selection: 28
William Kirkwood
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,774
Rankings
Ranking Based On Selection: 29
Joost Daniels
Metrics
H-Index
i10 Index
Citation Counts
19
22
3,504
Rankings
Ranking Based On Selection: 30
Duane R Edgington
Metrics
H-Index
i10 Index
Citation Counts
19
21
1,222
Ocean
Computer Vision
Machine Learning
Sensor Network
Environment
Rankings
Ranking Based On Selection: 31
Chang Jae Choi
Metrics
H-Index
i10 Index
Citation Counts
18
19
3,095
phytoplankton ecology
microbial diversity
microbial interactions
Rankings
Ranking Based On Selection: 32
Re Sherlock
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,148
Marine Ecology
Mesopelagic Ecology
Ecological Time Series
Invertebrates
Rankings
Ranking Based On Selection: 33
Danelle Cline
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,004
Computer vision
machine learning
artificial intelligence
Rankings
Ranking Based On Selection: 34
Astrid Brigitta Leitner
Metrics
H-Index
i10 Index
Citation Counts
14
15
604
seamounts
deep sea ecology
biogeophysics
habitat association
Rankings
Ranking Based On Selection: 36
Fanny Girard
Metrics
H-Index
i10 Index
Citation Counts
12
13
374
Deep-sea biology
conservation
Rankings
Ranking Based On Selection: 37
Carlos A Rueda-Velásquez
Metrics
H-Index
i10 Index
Citation Counts
12
16
1,451
scientific data management
semantic web
visualization
Rankings
Ranking Based On Selection: 38
Brian Schlining
Metrics
H-Index
i10 Index
Citation Counts
10
10
1,075
Rankings
Ranking Based On Selection: 39
Emily A Miller
Metrics
H-Index
i10 Index
Citation Counts
9
9
315
ecology
telemetry
stable isotopes
movement ecology
fisheries
Rankings
Ranking Based On Selection: 40
Mariana Bernardi Bif
Metrics
H-Index
i10 Index
Citation Counts
9
9
292
biogeochemistry
marine ecology
organic chemistry
carbon cycle
Rankings
Ranking Based On Selection: 41
William Z Haskell
Metrics
H-Index
i10 Index
Citation Counts
9
9
248
Marine biogeochemistry
Biological production
Carbon export
Physicochemical dynamics
Autonomous platforms
Rankings
Ranking Based On Selection: 43
Jacqueline Jacki Long
Metrics
H-Index
i10 Index
Citation Counts
8
8
184
Remote Sensing
Marine Biogeochemistry
Astrobiology
Rankings
Ranking Based On Selection: 44
Kyra Schlining
Metrics
H-Index
i10 Index
Citation Counts
7
7
572
Rankings
Ranking Based On Selection: 45
Natalie Hn Low
Metrics
H-Index
i10 Index
Citation Counts
7
7
516
Rankings
Ranking Based On Selection: 46
M Elisabeth Henderson
Metrics
H-Index
i10 Index
Citation Counts
6
4
417
Rankings
Ranking Based On Selection: 47
Laughlin Barker
Metrics
H-Index
i10 Index
Citation Counts
5
3
200
Rankings
Ranking Based On Selection: 48
Diana Lascala-Gruenewald
Metrics
H-Index
i10 Index
Citation Counts
4
2
44