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" (870,053 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
Frank Muller Karger
Oceanography
nutrient cycling
continental margins
carbon flux
climate change
Metrics
H-Index
i10 Index
Citation
99
310
31,629
* Rankings
Ranking Based On Selection: 3
Thomas S Bianchi
biogeochemistry
marine chemistry
UF-Geology
organic geochemistry
chemical oceanography
Metrics
H-Index
i10 Index
Citation
82
245
24,707
* Rankings
Ranking Based On Selection: 6
Michael Perfit
UF-Geology
geochemistry
petrology
marine geology
igneous petrology
Metrics
H-Index
i10 Index
Citation
68
124
13,672
* Rankings
Ranking Based On Selection: 7
Hendrik Luesch
marine natural products
drug discovery and development
chemical biology
chemical genomics
Metrics
H-Index
i10 Index
Citation
66
152
12,249
* Rankings
Ranking Based On Selection: 8
Pamela Hallock Muller
Ocean Sciences
Carbonate Sedimentology
Coral Reefs
Foraminifera
Marine Ecology
Metrics
H-Index
i10 Index
Citation
61
154
14,453
* Rankings
Ranking Based On Selection: 10
Douglas S Jones
Paleontology
Invertebrate Paleontology
Paleoecology
Paleobiology
Marine Biology
Metrics
H-Index
i10 Index
Citation
53
111
19,054

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* Rankings
Ranking Based On Selection: 16
Ulrich Stingl
Marine Microbial Ecology
Marine Microbiology
SAR11
Prochlorococcus
Metrics
H-Index
i10 Index
Citation
44
73
5,960
* Rankings
Ranking Based On Selection: 19
Yonggang Liu
physical oceanography
satellite oceanography
coastal oceanography
HF radar
wavelet analysis
Metrics
H-Index
i10 Index
Citation
42
81
6,015
* Rankings
Ranking Based On Selection: 20
Kendra Daly
Biological oceanography
zooplankton ecology
biogoechemical cycles
sensor technology
Metrics
H-Index
i10 Index
Citation
40
74
5,998
* Rankings
Ranking Based On Selection: 24
Boris Galperin
Physical Oceanography
Geophysical Fluid Dynamics
Turbulence
Metrics
H-Index
i10 Index
Citation
35
57
6,293
* Rankings
Ranking Based On Selection: 26
David Naar
Seafloor Mapping
Plate Tectonics
Microplates
Coral and Artificial Reefs
Metrics
H-Index
i10 Index
Citation
33
56
3,249
* Rankings
Ranking Based On Selection: 29
Tim M Conway
trace metals
isotope geochemistry
biogeochemistry
aerosols
marine chemistry
Metrics
H-Index
i10 Index
Citation
30
44
3,629
John M Jaeger
Marine Geology
Sedimentology
Coastal Geology
UF-LUECI
UF-Geology
Metrics
H-Index
i10 Index
Citation
27
50
2,426
Julie L Meyer
marine microbial ecology
community structure
biogeography
microbial genomics and metagenomics
microbe-microbe interactions
Metrics
H-Index
i10 Index
Citation
26
35
2,638
Robert G Hatfield
Environmental Magnetism
Paleomagnetism
Paleoclimate
Marine Geology
Metrics
H-Index
i10 Index
Citation
24
33
1,484
Raymond R Carthy
coastal ecosystems
threatened and endangered species
sea turtles
UAS
CRU Program
Metrics
H-Index
i10 Index
Citation
22
30
1,663
Shirley Baker
Marine ecology
Aquaculture
Marine biology
Molluscs
Bivalve physiology
Metrics
H-Index
i10 Index
Citation
22
36
2,024
* Rankings
Ranking Based On Selection: 46
Geoffrey S Cook
Biological Oceanography
Benthic Ecology
Marine Conservation Ecology
Marine Ecosystem Services
Coastal Sustainability
Metrics
H-Index
i10 Index
Citation
19
24
1,526
Philipp H Boersch Supan
Quantitative Ecology
Energetics
Ornithology
Marine Ecology
Disease Ecology
Metrics
H-Index
i10 Index
Citation
18
24
1,539
Jorge A Angulo Valdes
marine protected areas
management effectiveness
ecological economics
Metrics
H-Index
i10 Index
Citation
17
41
1,526
James Nifong
Herpetology
Food Web Ecology
Coastal Ecosystems
Conservation
Metrics
H-Index
i10 Index
Citation
17
21
1,027
Laura K Reynolds
coastal and marine ecology
population genetics
ecosystem restoration
Metrics
H-Index
i10 Index
Citation
16
27
1,304
Katherine Katy Serafin
total water levels
multivariate hazards
climate change impacts
coastal hazards
extreme value
Metrics
H-Index
i10 Index
Citation
15
18
1,202
* Rankings
Ranking Based On Selection: 59
Brock Murch
satellite remote sensing
data distribution
ocean optics
ocean color remote sensing
Metrics
H-Index
i10 Index
Citation
13
13
1,172
* Rankings
Ranking Based On Selection: 60
Digna Rueda Roa
upwelling
remote sensing
marine ecology
marine biology
oceanography
Metrics
H-Index
i10 Index
Citation
13
13
1,018
* Rankings
Ranking Based On Selection: 63
Clifford R Merz Pe
Ocean Engineering
Microalgal BioProduction
Salinity Gradient Power
Food-Water-Energy Nexus
HF Radar Ocean Monitoring
Metrics
H-Index
i10 Index
Citation
12
16
553
Thomas T Ankersen
environmental law
property law
sustainable development
international environmental law
marine and coastal law and policy
Metrics
H-Index
i10 Index
Citation
12
12
624
* Rankings
Ranking Based On Selection: 65
Alexis Janosik
molecular ecology
marine biology
phylogeography
environmental DNA
metabarcoding
Metrics
H-Index
i10 Index
Citation
10
11
609
* Rankings
Ranking Based On Selection: 66
Christina Toms
Marine mammal conservation
behavioral ecology
population dynamics
animal behavior
evolutionary psychology
Metrics
H-Index
i10 Index
Citation
10
10
667
* Rankings
Ranking Based On Selection: 67
Cigdem Akan
ocean modeling
large eddy simulation
Langmuir turbulence
data assimilation
wave current
Metrics
H-Index
i10 Index
Citation
10
11
297
Viyaktha Hithaishi Hewageegana
Coastal Engineering
hydrodynamics
morphodynamics
nature-based solutions
water quality
Metrics
H-Index
i10 Index
Citation
4
2
33
Christopher Crowder
Marine Ecology
Conservation Biology
Predator-Prey Interactions
Ecological Modeling
Coupled Natural Human Systems
Metrics
H-Index
i10 Index
Citation
1
1
11
Rankings
Ranking Based On Selection: 1
Frank Muller Karger
Metrics
H-Index
i10 Index
Citation Counts
99
310
31,629
Oceanography
nutrient cycling
continental margins
carbon flux
climate change
Rankings
Ranking Based On Selection: 2
Karen A Bjorndal
Metrics
H-Index
i10 Index
Citation Counts
95
224
39,924
Rankings
Ranking Based On Selection: 3
Thomas S Bianchi
Metrics
H-Index
i10 Index
Citation Counts
82
245
24,707
biogeochemistry
marine chemistry
UF-Geology
organic geochemistry
chemical oceanography
Rankings
Ranking Based On Selection: 4
John J Walsh
Metrics
H-Index
i10 Index
Citation Counts
72
293
24,379
Rankings
Ranking Based On Selection: 5
Robert H Weisberg
Metrics
H-Index
i10 Index
Citation Counts
70
203
15,048
Rankings
Ranking Based On Selection: 6
Michael Perfit
Metrics
H-Index
i10 Index
Citation Counts
68
124
13,672
UF-Geology
geochemistry
petrology
marine geology
igneous petrology
Rankings
Ranking Based On Selection: 7
Hendrik Luesch
Metrics
H-Index
i10 Index
Citation Counts
66
152
12,249
marine natural products
drug discovery and development
chemical biology
chemical genomics
Rankings
Ranking Based On Selection: 8
Pamela Hallock Muller
Metrics
H-Index
i10 Index
Citation Counts
61
154
14,453
Ocean Sciences
Carbonate Sedimentology
Coral Reefs
Foraminifera
Marine Ecology
Rankings
Ranking Based On Selection: 9
DP Chambers
Metrics
H-Index
i10 Index
Citation Counts
59
114
16,035
Rankings
Ranking Based On Selection: 10
Douglas S Jones
Metrics
H-Index
i10 Index
Citation Counts
53
111
19,054
Paleontology
Invertebrate Paleontology
Paleoecology
Paleobiology
Marine Biology

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
Susan Bell
Metrics
H-Index
i10 Index
Citation Counts
53
114
9,582
Rankings
Ranking Based On Selection: 12
David Hollander
Metrics
H-Index
i10 Index
Citation Counts
50
110
10,087
Rankings
Ranking Based On Selection: 13
Arnoldo Valle Levinson
Metrics
H-Index
i10 Index
Citation Counts
50
182
8,125
Rankings
Ranking Based On Selection: 14
Brad Seibel
Metrics
H-Index
i10 Index
Citation Counts
49
91
13,722
Rankings
Ranking Based On Selection: 15
Gary T Mitchum
Metrics
H-Index
i10 Index
Citation Counts
46
76
11,071
Rankings
Ranking Based On Selection: 16
Ulrich Stingl
Metrics
H-Index
i10 Index
Citation Counts
44
73
5,960
Marine Microbial Ecology
Marine Microbiology
SAR11
Prochlorococcus
Rankings
Ranking Based On Selection: 18
Graham Aj Worthy
Metrics
H-Index
i10 Index
Citation Counts
43
64
4,498
Rankings
Ranking Based On Selection: 19
Yonggang Liu
Metrics
H-Index
i10 Index
Citation Counts
42
81
6,015
physical oceanography
satellite oceanography
coastal oceanography
HF radar
wavelet analysis
Rankings
Ranking Based On Selection: 20
Kendra Daly
Metrics
H-Index
i10 Index
Citation Counts
40
74
5,998
Biological oceanography
zooplankton ecology
biogoechemical cycles
sensor technology
Rankings
Ranking Based On Selection: 21
TK Frazer
Metrics
H-Index
i10 Index
Citation Counts
40
85
5,400
Rankings
Ranking Based On Selection: 22
Cameron Ainsworth
Metrics
H-Index
i10 Index
Citation Counts
36
87
5,327
Rankings
Ranking Based On Selection: 23
Y Peter Sheng
Metrics
H-Index
i10 Index
Citation Counts
36
105
4,807
Rankings
Ranking Based On Selection: 24
Boris Galperin
Metrics
H-Index
i10 Index
Citation Counts
35
57
6,293
Physical Oceanography
Geophysical Fluid Dynamics
Turbulence
Rankings
Ranking Based On Selection: 25
Mark E Luther
Metrics
H-Index
i10 Index
Citation Counts
33
68
5,192
Rankings
Ranking Based On Selection: 26
David Naar
Metrics
H-Index
i10 Index
Citation Counts
33
56
3,249
Seafloor Mapping
Plate Tectonics
Microplates
Coral and Artificial Reefs
Rankings
Ranking Based On Selection: 27
Ellen Martin
Metrics
H-Index
i10 Index
Citation Counts
32
48
4,309
Rankings
Ranking Based On Selection: 28
Maitane Olabarrieta
Metrics
H-Index
i10 Index
Citation Counts
31
49
2,989
Rankings
Ranking Based On Selection: 29
Tim M Conway
Metrics
H-Index
i10 Index
Citation Counts
30
44
3,629
trace metals
isotope geochemistry
biogeochemistry
aerosols
marine chemistry
Rankings
Ranking Based On Selection: 30
Donald C Behringer
Metrics
H-Index
i10 Index
Citation Counts
30
59
3,210
Rankings
Ranking Based On Selection: 31
Brad J Gemmell
Metrics
H-Index
i10 Index
Citation Counts
27
50
2,367
Rankings
Ranking Based On Selection: 32
Jun Zhao
Metrics
H-Index
i10 Index
Citation Counts
27
45
1,966
Rankings
Ranking Based On Selection: 33
KM Scott
Metrics
H-Index
i10 Index
Citation Counts
27
42
2,776
Rankings
Ranking Based On Selection: 34
John M Jaeger
Metrics
H-Index
i10 Index
Citation Counts
27
50
2,426
Marine Geology
Sedimentology
Coastal Geology
UF-LUECI
UF-Geology
Rankings
Ranking Based On Selection: 35
Julie L Meyer
Metrics
H-Index
i10 Index
Citation Counts
26
35
2,638
marine microbial ecology
community structure
biogeography
microbial genomics and metagenomics
microbe-microbe interactions
Rankings
Ranking Based On Selection: 36
Katherine Mansfield
Metrics
H-Index
i10 Index
Citation Counts
25
30
2,035
Rankings
Ranking Based On Selection: 37
Stanley D Locker
Metrics
H-Index
i10 Index
Citation Counts
25
41
1,885
Rankings
Ranking Based On Selection: 38
Robert G Hatfield
Metrics
H-Index
i10 Index
Citation Counts
24
33
1,484
Environmental Magnetism
Paleomagnetism
Paleoclimate
Marine Geology
Rankings
Ranking Based On Selection: 39
Chris Stallings
Metrics
H-Index
i10 Index
Citation Counts
23
41
2,575
Rankings
Ranking Based On Selection: 40
Isabel C Romero
Metrics
H-Index
i10 Index
Citation Counts
23
40
1,931
Rankings
Ranking Based On Selection: 41
Dennis A Mayer
Metrics
H-Index
i10 Index
Citation Counts
23
26
2,790
Rankings
Ranking Based On Selection: 42
Raymond R Carthy
Metrics
H-Index
i10 Index
Citation Counts
22
30
1,663
coastal ecosystems
threatened and endangered species
sea turtles
UAS
CRU Program
Rankings
Ranking Based On Selection: 43
Shirley Baker
Metrics
H-Index
i10 Index
Citation Counts
22
36
2,024
Marine ecology
Aquaculture
Marine biology
Molluscs
Bivalve physiology
Rankings
Ranking Based On Selection: 44
Minwei Zhang
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,470
Rankings
Ranking Based On Selection: 45
Sang Ik Shin
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,825
Rankings
Ranking Based On Selection: 46
Geoffrey S Cook
Metrics
H-Index
i10 Index
Citation Counts
19
24
1,526
Biological Oceanography
Benthic Ecology
Marine Conservation Ecology
Marine Ecosystem Services
Coastal Sustainability
Rankings
Ranking Based On Selection: 47
Philipp H Boersch Supan
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,539
Quantitative Ecology
Energetics
Ornithology
Marine Ecology
Disease Ecology
Rankings
Ranking Based On Selection: 48
Yuyuan Xie
Metrics
H-Index
i10 Index
Citation Counts
18
22
922
Rankings
Ranking Based On Selection: 49
Alberto Canestrelli
Metrics
H-Index
i10 Index
Citation Counts
18
26
1,466
Riverine Estuarine and Coastal hydrodynamics and geomorphology
Rankings
Ranking Based On Selection: 50
Bryndan P Durham
Metrics
H-Index
i10 Index
Citation Counts
17
20
2,779
Rankings
Ranking Based On Selection: 51
Jorge A Angulo Valdes
Metrics
H-Index
i10 Index
Citation Counts
17
41
1,526
marine protected areas
management effectiveness
ecological economics
Rankings
Ranking Based On Selection: 52
James Nifong
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,027
Herpetology
Food Web Ecology
Coastal Ecosystems
Conservation
Rankings
Ranking Based On Selection: 53
Gregory S Herbert
Metrics
H-Index
i10 Index
Citation Counts
17
23
788
Marine conservation
Paleobiology
Stable isotope geochemistry
Rankings
Ranking Based On Selection: 54
Nancy L Williams
Metrics
H-Index
i10 Index
Citation Counts
16
18
1,639
Rankings
Ranking Based On Selection: 55
Laura K Reynolds
Metrics
H-Index
i10 Index
Citation Counts
16
27
1,304
coastal and marine ecology
population genetics
ecosystem restoration
Rankings
Ranking Based On Selection: 56
Katherine Katy Serafin
Metrics
H-Index
i10 Index
Citation Counts
15
18
1,202
total water levels
multivariate hazards
climate change impacts
coastal hazards
extreme value
Rankings
Ranking Based On Selection: 57
Erin Seney
Metrics
H-Index
i10 Index
Citation Counts
14
14
1,038
Rankings
Ranking Based On Selection: 58
Anni Djurhuus
Metrics
H-Index
i10 Index
Citation Counts
13
15
931
Rankings
Ranking Based On Selection: 59
Brock Murch
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,172
satellite remote sensing
data distribution
ocean optics
ocean color remote sensing
Rankings
Ranking Based On Selection: 60
Digna Rueda Roa
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,018
upwelling
remote sensing
marine ecology
marine biology
oceanography
Rankings
Ranking Based On Selection: 61
Kimberly R Schneider
Metrics
H-Index
i10 Index
Citation Counts
13
14
785
Rankings
Ranking Based On Selection: 63
Clifford R Merz Pe
Metrics
H-Index
i10 Index
Citation Counts
12
16
553
Ocean Engineering
Microalgal BioProduction
Salinity Gradient Power
Food-Water-Energy Nexus
HF Radar Ocean Monitoring
Rankings
Ranking Based On Selection: 64
Thomas T Ankersen
Metrics
H-Index
i10 Index
Citation Counts
12
12
624
environmental law
property law
sustainable development
international environmental law
marine and coastal law and policy
Rankings
Ranking Based On Selection: 65
Alexis Janosik
Metrics
H-Index
i10 Index
Citation Counts
10
11
609
molecular ecology
marine biology
phylogeography
environmental DNA
metabarcoding
Rankings
Ranking Based On Selection: 66
Christina Toms
Metrics
H-Index
i10 Index
Citation Counts
10
10
667
Marine mammal conservation
behavioral ecology
population dynamics
animal behavior
evolutionary psychology
Rankings
Ranking Based On Selection: 67
Cigdem Akan
Metrics
H-Index
i10 Index
Citation Counts
10
11
297
ocean modeling
large eddy simulation
Langmuir turbulence
data assimilation
wave current
Rankings
Ranking Based On Selection: 68
Uriah Gravois
Metrics
H-Index
i10 Index
Citation Counts
10
10
580
Rankings
Ranking Based On Selection: 69
Phillip Schmutz
Metrics
H-Index
i10 Index
Citation Counts
7
7
209
Rankings
Ranking Based On Selection: 70
Costanza Manes
Metrics
H-Index
i10 Index
Citation Counts
5
3
98
Rankings
Ranking Based On Selection: 71
Christopher A Long
Metrics
H-Index
i10 Index
Citation Counts
5
3
125
Marine turtle biology
marine ecology
conservation biology
ecology
Rankings
Ranking Based On Selection: 72
Alexandra Bijak
Metrics
H-Index
i10 Index
Citation Counts
5
2
45
biodiversity
marine and coastal ecology
environmental monitoring
Rankings
Ranking Based On Selection: 73
Emily Mcmullen Farrell
Metrics
H-Index
i10 Index
Citation Counts
4
4
196
Rankings
Ranking Based On Selection: 74
Tiffany M Dawson
Metrics
H-Index
i10 Index
Citation Counts
4
4
126
Rankings
Ranking Based On Selection: 75
Sida Li
Metrics
H-Index
i10 Index
Citation Counts
4
3
134
Rankings
Ranking Based On Selection: 76
Viyaktha Hithaishi Hewageegana
Metrics
H-Index
i10 Index
Citation Counts
4
2
33
Coastal Engineering
hydrodynamics
morphodynamics
nature-based solutions
water quality
Rankings
Ranking Based On Selection: 77
Nerine Constant
Metrics
H-Index
i10 Index
Citation Counts
3
2
66
Rankings
Ranking Based On Selection: 78
Monica D Schul
Metrics
H-Index
i10 Index
Citation Counts
3
0
21
Rankings
Ranking Based On Selection: 79
Jamin Wells
Metrics
H-Index
i10 Index
Citation Counts
3
0
11
Rankings
Ranking Based On Selection: 80
Heather Peterson
Metrics
H-Index
i10 Index
Citation Counts
1
1
67
Rankings
Ranking Based On Selection: 81
Christopher Crowder
Metrics
H-Index
i10 Index
Citation Counts
1
1
11
Marine Ecology
Conservation Biology
Predator-Prey Interactions
Ecological Modeling
Coupled Natural Human Systems
Rankings
Ranking Based On Selection: 82
Braulio Juarez
Metrics
H-Index
i10 Index
Citation Counts
1
0
9