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
Matthew England
Physical Oceanography
Climate Dynamics
Antarctic Climate
Ocean Modelling
Southern Ocean
Metrics
H-Index
i10 Index
Citation
88
303
30,491
Laura Parker
Ocean acidification
Climate change
Molluscs
Acclimation and adaptation potential
Transgenerational plasticity
Metrics
H-Index
i10 Index
Citation
31
51
5,286
Mark Holzer
Oceanography
Atmospheric Science
Global Biogeochemical Cycles
Climate
Metrics
H-Index
i10 Index
Citation
31
63
3,756
Danial Khojasteh
Estuarine Hydrodynamics
Coastal Flooding
Flood Risk Management
Climate Change
Marine Energy
Metrics
H-Index
i10 Index
Citation
25
34
1,953
Mahmood Sadat Noori
Coastal groundwater
Surface water-Groundwater Interaction
Submarine groundwater discharge
Groundwater hydrogeochemistry
Metrics
H-Index
i10 Index
Citation
20
24
1,375

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James T Carley
coastal engineering
adaptation
coastal structures
sea level rise
climate change
Metrics
H-Index
i10 Index
Citation
14
19
794
Shannen Smith
Marine biology
Ecology
Marine herbivory
Ecological interactions
Community ecology
Metrics
H-Index
i10 Index
Citation
6
6
227
Hannah Dawson
Physical Oceanography
Biological Oceanography
Southern Ocean
Antarctic Sea Ice
Metrics
H-Index
i10 Index
Citation
2
2
83
Rankings
Ranking Based On Selection: 1
Matthew England
Metrics
H-Index
i10 Index
Citation Counts
88
303
30,491
Physical Oceanography
Climate Dynamics
Antarctic Climate
Ocean Modelling
Southern Ocean
Rankings
Ranking Based On Selection: 2
Trevor McDougall
Metrics
H-Index
i10 Index
Citation Counts
57
130
14,527
Rankings
Ranking Based On Selection: 3
J Paul Spence
Metrics
H-Index
i10 Index
Citation Counts
33
59
4,901
Rankings
Ranking Based On Selection: 4
Laura Parker
Metrics
H-Index
i10 Index
Citation Counts
31
51
5,286
Ocean acidification
Climate change
Molluscs
Acclimation and adaptation potential
Transgenerational plasticity
Rankings
Ranking Based On Selection: 5
Mark Holzer
Metrics
H-Index
i10 Index
Citation Counts
31
63
3,756
Oceanography
Atmospheric Science
Global Biogeochemical Cycles
Climate
Rankings
Ranking Based On Selection: 6
Jan D Zika
Metrics
H-Index
i10 Index
Citation Counts
30
46
2,962
Rankings
Ranking Based On Selection: 7
Danial Khojasteh
Metrics
H-Index
i10 Index
Citation Counts
25
34
1,953
Estuarine Hydrodynamics
Coastal Flooding
Flood Risk Management
Climate Change
Marine Energy
Rankings
Ranking Based On Selection: 9
Ryan M Holmes
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,192
Rankings
Ranking Based On Selection: 10
Mahmood Sadat Noori
Metrics
H-Index
i10 Index
Citation Counts
20
24
1,375
Coastal groundwater
Surface water-Groundwater Interaction
Submarine groundwater discharge
Groundwater hydrogeochemistry

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
Leela Frankcombe
Metrics
H-Index
i10 Index
Citation Counts
20
22
2,758
Rankings
Ranking Based On Selection: 12
Paul Barker
Metrics
H-Index
i10 Index
Citation Counts
16
20
3,615
Rankings
Ranking Based On Selection: 13
Prasanta Sahoo
Metrics
H-Index
i10 Index
Citation Counts
15
26
739
Rankings
Ranking Based On Selection: 14
Guillaume Serazin
Metrics
H-Index
i10 Index
Citation Counts
14
16
794
Rankings
Ranking Based On Selection: 15
James T Carley
Metrics
H-Index
i10 Index
Citation Counts
14
19
794
coastal engineering
adaptation
coastal structures
sea level rise
climate change
Rankings
Ranking Based On Selection: 16
Joshua Simmons
Metrics
H-Index
i10 Index
Citation Counts
13
16
1,697
Rankings
Ranking Based On Selection: 17
Michael Hemming
Metrics
H-Index
i10 Index
Citation Counts
7
5
168
Rankings
Ranking Based On Selection: 18
Shannen Smith
Metrics
H-Index
i10 Index
Citation Counts
6
6
227
Marine biology
Ecology
Marine herbivory
Ecological interactions
Community ecology
Rankings
Ranking Based On Selection: 19
Daniel Raj David
Metrics
H-Index
i10 Index
Citation Counts
5
3
79
Rankings
Ranking Based On Selection: 20
Fernando Sobral
Metrics
H-Index
i10 Index
Citation Counts
4
4
77
Rankings
Ranking Based On Selection: 21
Talia Stelling-Wood
Metrics
H-Index
i10 Index
Citation Counts
3
2
92
Rankings
Ranking Based On Selection: 22
Chris Leaman
Metrics
H-Index
i10 Index
Citation Counts
3
1
73
Rankings
Ranking Based On Selection: 23
Hannah Dawson
Metrics
H-Index
i10 Index
Citation Counts
2
2
83
Physical Oceanography
Biological Oceanography
Southern Ocean
Antarctic Sea Ice