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" (873,688 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
Tron Frede Thingstad
microbiology
Marine Ecology
modelling
microbial loop
Metrics
H-Index
i10 Index
Citation
65
140
27,452
* Rankings
Ranking Based On Selection: 2
Noel Keenlyside
Climate Dynamics
Climate predictability
Ocean-Atmosphere Interaction
Tropical Atlantic
Atlantic Multi-decadal Variability
Metrics
H-Index
i10 Index
Citation
63
129
16,389
* Rankings
Ranking Based On Selection: 3
Haflidi Haflidason
Quaternary stratigraphy
Paleoceanography
sediment processes
tephra
Metrics
H-Index
i10 Index
Citation
61
139
26,576
* Rankings
Ranking Based On Selection: 5
Ilker Fer
small scale processes
ocean mixing
overflows
internal waves
Metrics
H-Index
i10 Index
Citation
49
113
6,848
* Rankings
Ranking Based On Selection: 6
Øyvind Fiksen
oceanography
ecology
evolution
foraging
modelling
Metrics
H-Index
i10 Index
Citation
47
84
6,218
* Rankings
Ranking Based On Selection: 8
Ulysses Ninnemann
paleoceanography
paleoclimatology
ocean biogeochemical cycling
Metrics
H-Index
i10 Index
Citation
35
55
5,014

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* Rankings
Ranking Based On Selection: 11
Monica Jordheim
phytochemistry
polyphenols
flavonoids
natural products
marine bioresource development
Metrics
H-Index
i10 Index
Citation
23
33
2,009
* Rankings
Ranking Based On Selection: 12
Zoé Koenig
Polar oceanography
Atlantic Water
turbulence and mixing
Metrics
H-Index
i10 Index
Citation
18
23
1,261
* Rankings
Ranking Based On Selection: 13
Eoghan P Reeves
Hydrothermal processes
organic geochemistry
marine geochemistry
Metrics
H-Index
i10 Index
Citation
17
26
1,887
* Rankings
Ranking Based On Selection: 14
David John Rees
evolution
phylogenetics
speciation
phylogeography
marine biology
Metrics
H-Index
i10 Index
Citation
17
22
856
* Rankings
Ranking Based On Selection: 15
Selina Våge
Theoretical ecology
Microbial ecology
Oceanography
Mathematics
Natural sciences
Metrics
H-Index
i10 Index
Citation
16
20
1,616
* Rankings
Ranking Based On Selection: 16
Jo Brendryen
Paleoclimate
marine geology
ice sheets and ice ages
Metrics
H-Index
i10 Index
Citation
14
18
757
* Rankings
Ranking Based On Selection: 17
Lisbeth Håvik
physical oceanography
arctic
nordic seas
overturning
Atlantic Water
Metrics
H-Index
i10 Index
Citation
9
9
479
* Rankings
Ranking Based On Selection: 19
Arne Kristoffersen
Ocean Optics
Marine Optics
Fluorescence
Ocean Color Remote sensing
Metrics
H-Index
i10 Index
Citation
9
9
367
* Rankings
Ranking Based On Selection: 22
Jie Liu 刘倢
marine environmental science
ecosystem services
environmental toxicology
Metrics
H-Index
i10 Index
Citation
5
5
162
Rankings
Ranking Based On Selection: 1
Tron Frede Thingstad
Metrics
H-Index
i10 Index
Citation Counts
65
140
27,452
Rankings
Ranking Based On Selection: 2
Noel Keenlyside
Metrics
H-Index
i10 Index
Citation Counts
63
129
16,389
Climate Dynamics
Climate predictability
Ocean-Atmosphere Interaction
Tropical Atlantic
Atlantic Multi-decadal Variability
Rankings
Ranking Based On Selection: 3
Haflidi Haflidason
Metrics
H-Index
i10 Index
Citation Counts
61
139
26,576
Quaternary stratigraphy
Paleoceanography
sediment processes
tephra
Rankings
Ranking Based On Selection: 4
Are Olsen
Metrics
H-Index
i10 Index
Citation Counts
60
139
27,147
Rankings
Ranking Based On Selection: 5
Ilker Fer
Metrics
H-Index
i10 Index
Citation Counts
49
113
6,848
small scale processes
ocean mixing
overflows
internal waves
Rankings
Ranking Based On Selection: 6
Øyvind Fiksen
Metrics
H-Index
i10 Index
Citation Counts
47
84
6,218
Rankings
Ranking Based On Selection: 7
Øystein Varpe|Ø. Varpe, Øystein Heggernes Varpe, Oystein Varpe
Metrics
H-Index
i10 Index
Citation Counts
44
88
6,806
Rankings
Ranking Based On Selection: 8
Ulysses Ninnemann
Metrics
H-Index
i10 Index
Citation Counts
35
55
5,014
paleoceanography
paleoclimatology
ocean biogeochemical cycling
Rankings
Ranking Based On Selection: 10
Kjetil Våge
Metrics
H-Index
i10 Index
Citation Counts
31
45
3,103

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
Monica Jordheim
Metrics
H-Index
i10 Index
Citation Counts
23
33
2,009
phytochemistry
polyphenols
flavonoids
natural products
marine bioresource development
Rankings
Ranking Based On Selection: 12
Zoé Koenig
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,261
Rankings
Ranking Based On Selection: 13
Eoghan P Reeves
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,887
Hydrothermal processes
organic geochemistry
marine geochemistry
Rankings
Ranking Based On Selection: 14
David John Rees
Metrics
H-Index
i10 Index
Citation Counts
17
22
856
evolution
phylogenetics
speciation
phylogeography
marine biology
Rankings
Ranking Based On Selection: 15
Selina Våge
Metrics
H-Index
i10 Index
Citation Counts
16
20
1,616
Theoretical ecology
Microbial ecology
Oceanography
Mathematics
Natural sciences
Rankings
Ranking Based On Selection: 16
Jo Brendryen
Metrics
H-Index
i10 Index
Citation Counts
14
18
757
Rankings
Ranking Based On Selection: 17
Lisbeth Håvik
Metrics
H-Index
i10 Index
Citation Counts
9
9
479
physical oceanography
arctic
nordic seas
overturning
Atlantic Water
Rankings
Ranking Based On Selection: 18
Ailin Brakstad
Metrics
H-Index
i10 Index
Citation Counts
9
9
405
Rankings
Ranking Based On Selection: 19
Arne Kristoffersen
Metrics
H-Index
i10 Index
Citation Counts
9
9
367
Ocean Optics
Marine Optics
Fluorescence
Ocean Color Remote sensing
Rankings
Ranking Based On Selection: 20
Stefanie Semper
Metrics
H-Index
i10 Index
Citation Counts
9
6
235
Rankings
Ranking Based On Selection: 21
Daniel Koestner
Metrics
H-Index
i10 Index
Citation Counts
6
6
143
Rankings
Ranking Based On Selection: 22
Jie Liu 刘倢
Metrics
H-Index
i10 Index
Citation Counts
5
5
162
marine environmental science
ecosystem services
environmental toxicology
Rankings
Ranking Based On Selection: 23
Xabier Davila
Metrics
H-Index
i10 Index
Citation Counts
4
2
47
Rankings
Ranking Based On Selection: 24
Håkon Sandven
Metrics
H-Index
i10 Index
Citation Counts
4
1
40
Rankings
Ranking Based On Selection: 25
Eliana Ruiz Martínez
Metrics
H-Index
i10 Index
Citation Counts
2
1
26