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" (873,864 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
Peter H Santschi
Marine Chemistry
Environmental Chemistry
Environmental Radiochemistry
Aquatic Chemistry
Metrics
H-Index
i10 Index
Citation
94
310
29,842
* Rankings
Ranking Based On Selection :4
Douglas Klein
conjugated-carbon nano-structures
chemical graph theory
valence-bond theory
Metrics
H-Index
i10 Index
Citation
63
300
15,953
* Rankings
Ranking Based On Selection :6
Samuel D Brody
coastal resilience
flood risk
hazard mitigation
disasters
environmental planning
Metrics
H-Index
i10 Index
Citation
58
105
13,166
* Rankings
Ranking Based On Selection :8
Jay R Rooker
Fisheries Ecology
Fisheries Oceanography
Population Connectivity
Fisheries Science
Metrics
H-Index
i10 Index
Citation
48
101
7,651
* Rankings
Ranking Based On Selection :11
Karl Kaiser
Biogeochemistry of bioactive elements - Arctic oceanography and soil biogeochemistry
Metrics
H-Index
i10 Index
Citation
39
58
6,900
* Rankings
Ranking Based On Selection :12
Wesley E Highfield
natural hazards
hazard mitigation
spatial analysis
flood risk
Metrics
H-Index
i10 Index
Citation
36
49
5,571
* Rankings
Ranking Based On Selection :16
Patrick Louchouarn
biogeochemistry
dissolved organic matter
black carbon
lignin
terrigenous organic matter
Metrics
H-Index
i10 Index
Citation
34
56
4,946
* Rankings
Ranking Based On Selection :17
Christopher D Marshall
Marine Biology
Ecological & Functional Morphology
Comparative Biomechanics
Integrative Organismal Biology
Conservation
Metrics
H-Index
i10 Index
Citation
30
56
2,939
* Rankings
Ranking Based On Selection :18
Anna R Armitage
Restoration ecology
Coastal community ecology
Wetland ecology
Trophic dynamics
Metrics
H-Index
i10 Index
Citation
30
48
2,490
* Rankings
Ranking Based On Selection :21
Jaime R Alvarado Bremer
Conservation Biology
Population Genetics
Molecular Ecology
Systematics
Evolution
Metrics
H-Index
i10 Index
Citation
25
43
2,738
* Rankings
Ranking Based On Selection :23
Timothy Dellapenna
Marine Geology
Marine Science
Oceanography
Marine Sedimentology
Sedimentology
Metrics
H-Index
i10 Index
Citation
24
46
1,785
* Rankings
Ranking Based On Selection :26
Peng Lin
Biogeochemical cycling of carbon and nutrients in aquatic environments
Isotopic Geochemistry
Aquatic colloids/nano-particles
Metrics
H-Index
i10 Index
Citation
21
31
1,055
* Rankings
Ranking Based On Selection :27
Jessica Labonté
marine microbiology
marine virology
metagenomics
single cell genomics
Metrics
H-Index
i10 Index
Citation
21
24
3,952
* Rankings
Ranking Based On Selection :29
Ron I Eytan
Evolution
Ichthyology
Coral Reefs
Phylogenetics
Population Genetics
Metrics
H-Index
i10 Index
Citation
21
23
3,929
* Rankings
Ranking Based On Selection :31
Elizabeth Nyman
International Maritime Politics
International Maritime Law
Polar Politics
Metrics
H-Index
i10 Index
Citation
19
27
1,324
* Rankings
Ranking Based On Selection :34
David Hala
Toxicology
Computational Biology
Metrics
H-Index
i10 Index
Citation
17
20
2,037
* Rankings
Ranking Based On Selection :36
Hui Liu
Zooplankton processes in the ocean
population dynamics and interactions of marine fishes
Metrics
H-Index
i10 Index
Citation
16
23
820
* Rankings
Ranking Based On Selection :38
Alok K Verma Pe Cmfge
Lean Six Sigma
Advanced Manufacturing Processes
Product Design and Development
Supply Chain Integration
STEM Education
Metrics
H-Index
i10 Index
Citation
15
24
1,003
* Rankings
Ranking Based On Selection :39
Matthew Kane
Wide bandgap semiconductors
solid state lighting
marine engineering technology
Metrics
H-Index
i10 Index
Citation
15
18
743
* Rankings
Ranking Based On Selection :40
Ayal Anis
Physical Oceanography
Turbulence
Mixing
Air-sea Interactions
Boundary Layer Physics
Metrics
H-Index
i10 Index
Citation
14
18
1,407
* Rankings
Ranking Based On Selection :43
Melania C López Castro
Conservation Biology
Marine ecology
Population connectivity
Metrics
H-Index
i10 Index
Citation
12
14
601
* Rankings
Ranking Based On Selection :47
Samuel Mark
Ancient seafaring
trade
and ship construction
Paleopathology
Metrics
H-Index
i10 Index
Citation
11
13
449
* Rankings
Ranking Based On Selection :49
Jhenny Galan
theoretical chemistry
biochemistry
physical chemistry
computational chemistry
biophysics
Metrics
H-Index
i10 Index
Citation
10
10
623
Daniel Traber
American Literature
American Studies
Popular Culture
Postmodernism
Metrics
H-Index
i10 Index
Citation
9
6
373
Jessica Hillhouse
Phytoplankton
Marine biology
Human disturbance on coastal environments
Oil spills
Metrics
H-Index
i10 Index
Citation
8
6
202
Ping Wang
Maritime Logistics and Supply Chain Management
Inventory Management
Lean Transformation
Metrics
H-Index
i10 Index
Citation
7
5
219
Philip R Brown
complex analysis
fundamental constants
Metrics
H-Index
i10 Index
Citation
4
2
65
Laura Stearns
Flood Risk
Natural Hazards
Spatial Analysis
Geographic Information Systems
Metrics
H-Index
i10 Index
Citation
2
1
67
Rankings
Ranking Based On Selection: 1
Peter H Santschi
Metrics
H-Index
i10 Index
Citation Counts
94
310
29,842
Marine Chemistry
Environmental Chemistry
Environmental Radiochemistry
Aquatic Chemistry
Rankings
Ranking Based On Selection: 2
Alexandru T Balaban
Metrics
H-Index
i10 Index
Citation Counts
75
459
27,907
Rankings
Ranking Based On Selection: 3
Bernd Wursig
Metrics
H-Index
i10 Index
Citation Counts
66
193
17,374
Rankings
Ranking Based On Selection: 4
Douglas Klein
Metrics
H-Index
i10 Index
Citation Counts
63
300
15,953
conjugated-carbon nano-structures
chemical graph theory
valence-bond theory
Rankings
Ranking Based On Selection: 5
Gilbert T Rowe
Metrics
H-Index
i10 Index
Citation Counts
62
156
12,384
Rankings
Ranking Based On Selection: 6
Samuel D Brody
Metrics
H-Index
i10 Index
Citation Counts
58
105
13,166
coastal resilience
flood risk
hazard mitigation
disasters
environmental planning
Rankings
Ranking Based On Selection: 7
Randall William Davis
Metrics
H-Index
i10 Index
Citation Counts
52
110
9,358
Rankings
Ranking Based On Selection: 8
Jay R Rooker
Metrics
H-Index
i10 Index
Citation Counts
48
101
7,651
Fisheries Ecology
Fisheries Oceanography
Population Connectivity
Fisheries Science
Rankings
Ranking Based On Selection: 9
Antonietta Quigg
Metrics
H-Index
i10 Index
Citation Counts
47
141
14,131
Rankings
Ranking Based On Selection: 10
Thomas M Iliffe
Metrics
H-Index
i10 Index
Citation Counts
43
189
7,354
Rankings
Ranking Based On Selection: 11
Karl Kaiser
Metrics
H-Index
i10 Index
Citation Counts
39
58
6,900
Biogeochemistry of bioactive elements - Arctic oceanography and soil biogeochemistry
Rankings
Ranking Based On Selection: 12
Wesley E Highfield
Metrics
H-Index
i10 Index
Citation Counts
36
49
5,571
natural hazards
hazard mitigation
spatial analysis
flood risk
Rankings
Ranking Based On Selection: 13
Glenn Jones
Metrics
H-Index
i10 Index
Citation Counts
36
68
6,756
Rankings
Ranking Based On Selection: 14
Saijin Zhang
Metrics
H-Index
i10 Index
Citation Counts
35
56
3,636
Rankings
Ranking Based On Selection: 15
RJ David Wells
Metrics
H-Index
i10 Index
Citation Counts
34
72
3,137
Rankings
Ranking Based On Selection: 16
Patrick Louchouarn
Metrics
H-Index
i10 Index
Citation Counts
34
56
4,946
biogeochemistry
dissolved organic matter
black carbon
lignin
terrigenous organic matter
Rankings
Ranking Based On Selection: 17
Christopher D Marshall
Metrics
H-Index
i10 Index
Citation Counts
30
56
2,939
Marine Biology
Ecological & Functional Morphology
Comparative Biomechanics
Integrative Organismal Biology
Conservation
Rankings
Ranking Based On Selection: 18
Anna R Armitage
Metrics
H-Index
i10 Index
Citation Counts
30
48
2,490
Restoration ecology
Coastal community ecology
Wetland ecology
Trophic dynamics
Rankings
Ranking Based On Selection: 19
Kyeong Park
Metrics
H-Index
i10 Index
Citation Counts
30
53
2,517
Rankings
Ranking Based On Selection: 20
Pete J Van Hengstum
Metrics
H-Index
i10 Index
Citation Counts
25
42
1,911
Rankings
Ranking Based On Selection: 21
Jaime R Alvarado Bremer
Metrics
H-Index
i10 Index
Citation Counts
25
43
2,738
Conservation Biology
Population Genetics
Molecular Ecology
Systematics
Evolution
Rankings
Ranking Based On Selection: 22
Vijay Panchang
Metrics
H-Index
i10 Index
Citation Counts
25
38
2,069
Rankings
Ranking Based On Selection: 23
Timothy Dellapenna
Metrics
H-Index
i10 Index
Citation Counts
24
46
1,785
Marine Geology
Marine Science
Oceanography
Marine Sedimentology
Sedimentology
Rankings
Ranking Based On Selection: 24
Anja Schulze
Metrics
H-Index
i10 Index
Citation Counts
23
42
1,951
Rankings
Ranking Based On Selection: 25
Diego Luis Gil Agudelo
Metrics
H-Index
i10 Index
Citation Counts
23
36
2,957
biodiversidad
conservación
Rankings
Ranking Based On Selection: 26
Peng Lin
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,055
Biogeochemical cycling of carbon and nutrients in aquatic environments
Isotopic Geochemistry
Aquatic colloids/nano-particles
Rankings
Ranking Based On Selection: 27
Jessica Labonté
Metrics
H-Index
i10 Index
Citation Counts
21
24
3,952
marine microbiology
marine virology
metagenomics
single cell genomics
Rankings
Ranking Based On Selection: 28
Maria Pia Miglietta
Metrics
H-Index
i10 Index
Citation Counts
21
28
1,941
Rankings
Ranking Based On Selection: 29
Ron I Eytan
Metrics
H-Index
i10 Index
Citation Counts
21
23
3,929
Evolution
Ichthyology
Coral Reefs
Phylogenetics
Population Genetics
Rankings
Ranking Based On Selection: 30
John R Schwarz
Metrics
H-Index
i10 Index
Citation Counts
20
23
1,030
Rankings
Ranking Based On Selection: 31
Elizabeth Nyman
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,324
International Maritime Politics
International Maritime Law
Polar Politics
Rankings
Ranking Based On Selection: 32
Kathy Schwehr
Metrics
H-Index
i10 Index
Citation Counts
18
22
1,717
Rankings
Ranking Based On Selection: 33
Joan P Mileski
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,335
Rankings
Ranking Based On Selection: 34
David Hala
Metrics
H-Index
i10 Index
Citation Counts
17
20
2,037
Toxicology
Computational Biology
Rankings
Ranking Based On Selection: 35
Grace WY Wang
Metrics
H-Index
i10 Index
Citation Counts
16
20
975
Maritime Economist. Game Theory. Environment and sustainability
Rankings
Ranking Based On Selection: 36
Hui Liu
Metrics
H-Index
i10 Index
Citation Counts
16
23
820
Zooplankton processes in the ocean
population dynamics and interactions of marine fishes
Rankings
Ranking Based On Selection: 38
Alok K Verma Pe Cmfge
Metrics
H-Index
i10 Index
Citation Counts
15
24
1,003
Lean Six Sigma
Advanced Manufacturing Processes
Product Design and Development
Supply Chain Integration
STEM Education
Rankings
Ranking Based On Selection: 39
Matthew Kane
Metrics
H-Index
i10 Index
Citation Counts
15
18
743
Wide bandgap semiconductors
solid state lighting
marine engineering technology
Rankings
Ranking Based On Selection: 40
Ayal Anis
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,407
Physical Oceanography
Turbulence
Mixing
Air-sea Interactions
Boundary Layer Physics
Rankings
Ranking Based On Selection: 41
Lene H Petersen
Metrics
H-Index
i10 Index
Citation Counts
14
17
859
Rankings
Ranking Based On Selection: 42
Uche Nwabueze
Metrics
H-Index
i10 Index
Citation Counts
13
15
655
Rankings
Ranking Based On Selection: 43
Melania C López Castro
Metrics
H-Index
i10 Index
Citation Counts
12
14
601
Conservation Biology
Marine ecology
Population connectivity
Rankings
Ranking Based On Selection: 44
Laura Jurgens
Metrics
H-Index
i10 Index
Citation Counts
12
12
467
Rankings
Ranking Based On Selection: 45
Cong X Kang
Metrics
H-Index
i10 Index
Citation Counts
12
13
393
Rankings
Ranking Based On Selection: 46
Cassia Bomer Galvao
Metrics
H-Index
i10 Index
Citation Counts
11
12
377
Rankings
Ranking Based On Selection: 47
Samuel Mark
Metrics
H-Index
i10 Index
Citation Counts
11
13
449
Ancient seafaring
trade
and ship construction
Paleopathology
Rankings
Ranking Based On Selection: 48
David Retchless
Metrics
H-Index
i10 Index
Citation Counts
10
12
395
Rankings
Ranking Based On Selection: 49
Jhenny Galan
Metrics
H-Index
i10 Index
Citation Counts
10
10
623
theoretical chemistry
biochemistry
physical chemistry
computational chemistry
biophysics
Rankings
Ranking Based On Selection: 50
Kris Knox
Metrics
H-Index
i10 Index
Citation Counts
10
10
309
Rankings
Ranking Based On Selection: 51
Daniel Traber
Metrics
H-Index
i10 Index
Citation Counts
9
6
373
American Literature
American Studies
Popular Culture
Postmodernism
Rankings
Ranking Based On Selection: 52
Jessica Hillhouse
Metrics
H-Index
i10 Index
Citation Counts
8
6
202
Phytoplankton
Marine biology
Human disturbance on coastal environments
Oil spills
Rankings
Ranking Based On Selection: 53
Michelle Zapp Sluis
Metrics
H-Index
i10 Index
Citation Counts
8
5
187
Rankings
Ranking Based On Selection: 54
Frederic B Pearl
Metrics
H-Index
i10 Index
Citation Counts
8
6
174
Rankings
Ranking Based On Selection: 55
Ping Wang
Metrics
H-Index
i10 Index
Citation Counts
7
5
219
Maritime Logistics and Supply Chain Management
Inventory Management
Lean Transformation
Rankings
Ranking Based On Selection: 56
Joann Digeorgio-Lutz
Metrics
H-Index
i10 Index
Citation Counts
6
5
282
Rankings
Ranking Based On Selection: 57
Wei Cheng
Metrics
H-Index
i10 Index
Citation Counts
5
5
171
Rankings
Ranking Based On Selection: 58
Melanie J Lesko Moser
Metrics
H-Index
i10 Index
Citation Counts
5
4
200
Rankings
Ranking Based On Selection: 59
Carol Bunch Davis
Metrics
H-Index
i10 Index
Citation Counts
4
4
103
Rankings
Ranking Based On Selection: 60
Philip R Brown
Metrics
H-Index
i10 Index
Citation Counts
4
2
65
complex analysis
fundamental constants
Rankings
Ranking Based On Selection: 61
Donald E Willett
Metrics
H-Index
i10 Index
Citation Counts
3
1
31
Rankings
Ranking Based On Selection: 62
Laura Stearns
Metrics
H-Index
i10 Index
Citation Counts
2
1
67
Flood Risk
Natural Hazards
Spatial Analysis
Geographic Information Systems
Rankings
Ranking Based On Selection: 63
Melissa Wiseman
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
pedagogy
teaching strategies
statistical analysis