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" (873,937 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 Colless
Observational cosmology
galaxy formation and evolution
clusters of galaxies
astronomical instrumentation
Metrics
H-Index
i10 Index
Citation
117
254
57,793
* Rankings
Ranking Based On Selection :3
Ian Campbell
Geophysics
Geology
Earth Science
Igneous Petrology
Economic Geology
Metrics
H-Index
i10 Index
Citation
96
188
30,128
* Rankings
Ranking Based On Selection :4
Hugh St C O Neill
Earth sciences
Geochemistry
Mineralogy
Petrology
Metrics
H-Index
i10 Index
Citation
93
203
26,463
* Rankings
Ranking Based On Selection :5
Albert IJM van Dijk
earth observation
hydrology
monitoring
drought
remote sensing
Metrics
H-Index
i10 Index
Citation
85
223
28,034
* Rankings
Ranking Based On Selection :6
Andrew P Roberts
Paleomagnetism
Environmental Magnetism
Geophysics
Geology
Paleoclimate
Metrics
H-Index
i10 Index
Citation
84
281
27,707
* Rankings
Ranking Based On Selection :7
Trevor R Ireland
isotope geochemistry
cosmochemistry
geochronology
Metrics
H-Index
i10 Index
Citation
81
228
23,897
* Rankings
Ranking Based On Selection :9
Richard Arculus
igneous petrology
geochemistry
isotope geochemistry
marine geology
tectonics
Metrics
H-Index
i10 Index
Citation
77
191
23,804
* Rankings
Ranking Based On Selection :10
Stephen Eggins
geochemistry
microanalysis
paleoceanography
biomineralisation
Metrics
H-Index
i10 Index
Citation
75
143
20,469
* Rankings
Ranking Based On Selection :11
Gordon Stuart Lister
tectonics
structural geology
geochronology
geodynamics
Metrics
H-Index
i10 Index
Citation
75
142
24,147
* Rankings
Ranking Based On Selection :12
Malcolm Sambridge
Seismology
Geophysics
Statistics and computation
Metrics
H-Index
i10 Index
Citation
64
135
21,213
* Rankings
Ranking Based On Selection :14
Dorrit Jacob
Biomineralization
Diamond
Earth's Mantle
LA-ICP-MS
Metrics
H-Index
i10 Index
Citation
58
134
12,761
* Rankings
Ranking Based On Selection :18
Penelope L King
Surface processes
Igneous petrology
Mineralogy
Geochemistry
Mars
Metrics
H-Index
i10 Index
Citation
54
103
14,461
* Rankings
Ranking Based On Selection :19
Yuri Amelin
Origin of the solar system
geochronology
isotope geochemistry
Metrics
H-Index
i10 Index
Citation
52
109
11,887
* Rankings
Ranking Based On Selection :20
Bradley John Pillans
geomorphology
quaternary stratigraphy
geochronology
Metrics
H-Index
i10 Index
Citation
49
109
7,572
* Rankings
Ranking Based On Selection :24
Stephen F Cox
geology
structural geology
fault mechanics
economic geology
coupled deformation and fluid flow
Metrics
H-Index
i10 Index
Citation
45
63
8,482
* Rankings
Ranking Based On Selection :25
Phil Cummins
Natural Hazards
earthquakes
tsunamis
seismology
Metrics
H-Index
i10 Index
Citation
44
100
5,740
* Rankings
Ranking Based On Selection :27
Nerilie Abram
Palaeoclimate
Climate Change
Ice Cores
Corals
Speleothems
Metrics
H-Index
i10 Index
Citation
42
68
10,573
* Rankings
Ranking Based On Selection :29
Paul Tregoning
Geodesy
crustal deformation
effects of climate change
Metrics
H-Index
i10 Index
Citation
41
69
7,351
* Rankings
Ranking Based On Selection :31
Hrvoje Tkalčić
Global observational seismology
Earth's core
Earth's lowermost mantle
Physics of seismic sources
Metrics
H-Index
i10 Index
Citation
39
94
4,830
* Rankings
Ranking Based On Selection :32
Meghan S Miller
observational seismology
structural seismology
geodynamics
tectonophysics
Metrics
H-Index
i10 Index
Citation
39
71
4,669
* Rankings
Ranking Based On Selection :34
Bradley N Opdyke
Marine Geoscience
Geochemical Oceanography
Past Climate
Biostratigraphy
Inorganic Geochemistry
Metrics
H-Index
i10 Index
Citation
37
61
6,242
* Rankings
Ranking Based On Selection :36
Masahiko Honda
Earth Sciences
Geochmistry
Noble Gases
Diamonds
Cosmogenic Dating
Metrics
H-Index
i10 Index
Citation
36
62
4,679
* Rankings
Ranking Based On Selection :37
D Rhodri Davies
Geodynamics
Computational Geosciences
Earth Sciences
Volcanism
Tectonics
Metrics
H-Index
i10 Index
Citation
33
47
3,234
* Rankings
Ranking Based On Selection :38
Lesley Wyborn
Geoscience
Geochemistry
Petrology
Informatics
Data Science
Metrics
H-Index
i10 Index
Citation
33
67
5,054
* Rankings
Ranking Based On Selection :41
xiang zhao
Magnetism Physics
Material
Robotic
MLAI
GIS\LabView\JS\Python\Database\Cloud
Metrics
H-Index
i10 Index
Citation
27
57
3,076
* Rankings
Ranking Based On Selection :43
Larissa Schneider
Palaeolimnology
mercury
geochemistry
environmental reconstruction
toxic metals
Metrics
H-Index
i10 Index
Citation
21
36
1,128
* Rankings
Ranking Based On Selection :44
Stacey Servito Martin
Historical Seismology
Early Instrumental Seismicity
Seismic Hazard
Metrics
H-Index
i10 Index
Citation
19
25
1,471
* Rankings
Ranking Based On Selection :46
Rhys Hawkins
Geophysical Inverse Problems
Bayesian methods
High Performance Computing
Metrics
H-Index
i10 Index
Citation
19
30
979
* Rankings
Ranking Based On Selection :49
Chris Gouramanis
Palaeoclimate
palaeolimnology
palaeoecology
coastal evolution
extreme events
Metrics
H-Index
i10 Index
Citation
18
26
867
* Rankings
Ranking Based On Selection :50
Nicky Wright
Paleogeography
Paleoclimate
Plate tectonics
Geophysics
Climate variability
Metrics
H-Index
i10 Index
Citation
17
18
2,393
* Rankings
Ranking Based On Selection :51
Bai Ling Wang
Geometry and topology
Geometric analysis
Mathematical Physics
Metrics
H-Index
i10 Index
Citation
17
25
840
* Rankings
Ranking Based On Selection :52
Rachel Downey
Data Stewardship
Marine Biogeography
Invertebrate taxonomy
Deep-sea
Polar Environmental Change
Metrics
H-Index
i10 Index
Citation
16
23
2,088
Caroline M Eakin
Observational Seismology
Mantle Dynamics
Seismic Anisotropy
Plate Tectonics
Metrics
H-Index
i10 Index
Citation
14
16
728
Barry Fordham
Phylogeny
Cibicidid Foraminifera
Planktonic/Planktic Foraminifera
Conodonts
Phylogenetics
Metrics
H-Index
i10 Index
Citation
11
12
637
Dirk Van Der Kley
Geoeconomics
International Political Economy
PRC Foreign Policy
Metrics
H-Index
i10 Index
Citation
8
7
165
Heather Scott Gagan
Palaeoclimate
Climate Change
Stable Isotopes
Corals
Speleothems
Metrics
H-Index
i10 Index
Citation
8
7
544
Karina Judd
science communication
inclusion in STEM
science in popular culture
geochemistry
geoarchaeology
Metrics
H-Index
i10 Index
Citation
4
3
144
Matthias Scheiter
Machine Learning
Inverse Theory
Bayesian Statistics
Glaciology
Seismology
Metrics
H-Index
i10 Index
Citation
3
2
42
Brett M Knowles
Geochemistry
Analytical chemistry
Environmental chemistry
Metrics
H-Index
i10 Index
Citation
3
1
71
Ruotong Huang
Geologic carbon sequestration
Multiphase flow in porous media
Low-carbon steel making
Metrics
H-Index
i10 Index
Citation
2
2
30
Kathleen Marie Harazin
paleoceanography
paleoclimatology
trace metal chemistry
chemical oceanography
marine geochemistry
Metrics
H-Index
i10 Index
Citation
2
1
28
Buse Turunçtur
Seismology
Inverse theory
Probabilistic Inversion
Ambient seismic noise
Anisotropy
Metrics
H-Index
i10 Index
Citation
1
0
6
Rankings
Ranking Based On Selection: 1
Matthew Colless
Metrics
H-Index
i10 Index
Citation Counts
117
254
57,793
Observational cosmology
galaxy formation and evolution
clusters of galaxies
astronomical instrumentation
Rankings
Ranking Based On Selection: 2
Christopher Mark Fanning
Metrics
H-Index
i10 Index
Citation Counts
100
402
35,817
Rankings
Ranking Based On Selection: 3
Ian Campbell
Metrics
H-Index
i10 Index
Citation Counts
96
188
30,128
Geophysics
Geology
Earth Science
Igneous Petrology
Economic Geology
Rankings
Ranking Based On Selection: 4
Hugh St C O Neill
Metrics
H-Index
i10 Index
Citation Counts
93
203
26,463
Earth sciences
Geochemistry
Mineralogy
Petrology
Rankings
Ranking Based On Selection: 5
Albert IJM van Dijk
Metrics
H-Index
i10 Index
Citation Counts
85
223
28,034
earth observation
hydrology
monitoring
drought
remote sensing
Rankings
Ranking Based On Selection: 6
Andrew P Roberts
Metrics
H-Index
i10 Index
Citation Counts
84
281
27,707
Paleomagnetism
Environmental Magnetism
Geophysics
Geology
Paleoclimate
Rankings
Ranking Based On Selection: 7
Trevor R Ireland
Metrics
H-Index
i10 Index
Citation Counts
81
228
23,897
isotope geochemistry
cosmochemistry
geochronology
Rankings
Ranking Based On Selection: 8
Brian Kennett
Metrics
H-Index
i10 Index
Citation Counts
80
301
32,512
Rankings
Ranking Based On Selection: 9
Richard Arculus
Metrics
H-Index
i10 Index
Citation Counts
77
191
23,804
igneous petrology
geochemistry
isotope geochemistry
marine geology
tectonics
Rankings
Ranking Based On Selection: 10
Stephen Eggins
Metrics
H-Index
i10 Index
Citation Counts
75
143
20,469
geochemistry
microanalysis
paleoceanography
biomineralisation
Rankings
Ranking Based On Selection: 11
Gordon Stuart Lister
Metrics
H-Index
i10 Index
Citation Counts
75
142
24,147
tectonics
structural geology
geochronology
geodynamics
Rankings
Ranking Based On Selection: 12
Malcolm Sambridge
Metrics
H-Index
i10 Index
Citation Counts
64
135
21,213
Seismology
Geophysics
Statistics and computation
Rankings
Ranking Based On Selection: 13
Marc D Norman
Metrics
H-Index
i10 Index
Citation Counts
64
142
16,157
Rankings
Ranking Based On Selection: 14
Dorrit Jacob
Metrics
H-Index
i10 Index
Citation Counts
58
134
12,761
Biomineralization
Diamond
Earth's Mantle
LA-ICP-MS
Rankings
Ranking Based On Selection: 15
Vickie C Bennett
Metrics
H-Index
i10 Index
Citation Counts
58
116
10,588
Rankings
Ranking Based On Selection: 16
Simon McClusky
Metrics
H-Index
i10 Index
Citation Counts
58
80
18,072
Rankings
Ranking Based On Selection: 17
David Heslop
Metrics
H-Index
i10 Index
Citation Counts
55
123
10,802
Rankings
Ranking Based On Selection: 18
Penelope L King
Metrics
H-Index
i10 Index
Citation Counts
54
103
14,461
Surface processes
Igneous petrology
Mineralogy
Geochemistry
Mars
Rankings
Ranking Based On Selection: 19
Yuri Amelin
Metrics
H-Index
i10 Index
Citation Counts
52
109
11,887
Origin of the solar system
geochronology
isotope geochemistry
Rankings
Ranking Based On Selection: 20
Bradley John Pillans
Metrics
H-Index
i10 Index
Citation Counts
49
109
7,572
geomorphology
quaternary stratigraphy
geochronology
Rankings
Ranking Based On Selection: 21
John Mavrogenes
Metrics
H-Index
i10 Index
Citation Counts
48
81
8,097
Rankings
Ranking Based On Selection: 22
Mernagh TP
Metrics
H-Index
i10 Index
Citation Counts
47
124
6,893
Rankings
Ranking Based On Selection: 23
Michael Ellwood
Metrics
H-Index
i10 Index
Citation Counts
46
106
7,242
Rankings
Ranking Based On Selection: 24
Stephen F Cox
Metrics
H-Index
i10 Index
Citation Counts
45
63
8,482
geology
structural geology
fault mechanics
economic geology
coupled deformation and fluid flow
Rankings
Ranking Based On Selection: 25
Phil Cummins
Metrics
H-Index
i10 Index
Citation Counts
44
100
5,740
Natural Hazards
earthquakes
tsunamis
seismology
Rankings
Ranking Based On Selection: 26
Bin Fu
Metrics
H-Index
i10 Index
Citation Counts
43
99
7,988
Rankings
Ranking Based On Selection: 27
Nerilie Abram
Metrics
H-Index
i10 Index
Citation Counts
42
68
10,573
Palaeoclimate
Climate Change
Ice Cores
Corals
Speleothems
Rankings
Ranking Based On Selection: 28
Jimin Yu
Metrics
H-Index
i10 Index
Citation Counts
41
75
5,530
Rankings
Ranking Based On Selection: 29
Paul Tregoning
Metrics
H-Index
i10 Index
Citation Counts
41
69
7,351
Geodesy
crustal deformation
effects of climate change
Rankings
Ranking Based On Selection: 30
Jochen J Brocks
Metrics
H-Index
i10 Index
Citation Counts
40
79
9,694
Rankings
Ranking Based On Selection: 31
Hrvoje Tkalčić
Metrics
H-Index
i10 Index
Citation Counts
39
94
4,830
Global observational seismology
Earth's core
Earth's lowermost mantle
Physics of seismic sources
Rankings
Ranking Based On Selection: 32
Meghan S Miller
Metrics
H-Index
i10 Index
Citation Counts
39
71
4,669
observational seismology
structural seismology
geodynamics
tectonophysics
Rankings
Ranking Based On Selection: 33
AL Jaques
Metrics
H-Index
i10 Index
Citation Counts
38
77
7,328
Rankings
Ranking Based On Selection: 34
Bradley N Opdyke
Metrics
H-Index
i10 Index
Citation Counts
37
61
6,242
Marine Geoscience
Geochemical Oceanography
Past Climate
Biostratigraphy
Inorganic Geochemistry
Rankings
Ranking Based On Selection: 35
Neville Exon
Metrics
H-Index
i10 Index
Citation Counts
37
101
4,143
Rankings
Ranking Based On Selection: 36
Masahiko Honda
Metrics
H-Index
i10 Index
Citation Counts
36
62
4,679
Earth Sciences
Geochmistry
Noble Gases
Diamonds
Cosmogenic Dating
Rankings
Ranking Based On Selection: 37
D Rhodri Davies
Metrics
H-Index
i10 Index
Citation Counts
33
47
3,234
Geodynamics
Computational Geosciences
Earth Sciences
Volcanism
Tectonics
Rankings
Ranking Based On Selection: 38
Lesley Wyborn
Metrics
H-Index
i10 Index
Citation Counts
33
67
5,054
Geoscience
Geochemistry
Petrology
Informatics
Data Science
Rankings
Ranking Based On Selection: 39
Katharine M Grant
Metrics
H-Index
i10 Index
Citation Counts
28
37
5,412
Palaeoceanography
Palaeoclimatology
Geosciences
Rankings
Ranking Based On Selection: 40
Robert V Burne
Metrics
H-Index
i10 Index
Citation Counts
28
47
3,857
Rankings
Ranking Based On Selection: 41
xiang zhao
Metrics
H-Index
i10 Index
Citation Counts
27
57
3,076
Magnetism Physics
Material
Robotic
MLAI
GIS\LabView\JS\Python\Database\Cloud
Rankings
Ranking Based On Selection: 42
Herb McQueen
Metrics
H-Index
i10 Index
Citation Counts
22
34
2,610
Rankings
Ranking Based On Selection: 43
Larissa Schneider
Metrics
H-Index
i10 Index
Citation Counts
21
36
1,128
Palaeolimnology
mercury
geochemistry
environmental reconstruction
toxic metals
Rankings
Ranking Based On Selection: 44
Stacey Servito Martin
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,471
Historical Seismology
Early Instrumental Seismicity
Seismic Hazard
Rankings
Ranking Based On Selection: 45
merinda nash
Metrics
H-Index
i10 Index
Citation Counts
19
22
982
Rankings
Ranking Based On Selection: 46
Rhys Hawkins
Metrics
H-Index
i10 Index
Citation Counts
19
30
979
Geophysical Inverse Problems
Bayesian methods
High Performance Computing
Rankings
Ranking Based On Selection: 47
Antony Burnham
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,406
Rankings
Ranking Based On Selection: 48
Michelle Salmon
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,411
Rankings
Ranking Based On Selection: 49
Chris Gouramanis
Metrics
H-Index
i10 Index
Citation Counts
18
26
867
Palaeoclimate
palaeolimnology
palaeoecology
coastal evolution
extreme events
Rankings
Ranking Based On Selection: 50
Nicky Wright
Metrics
H-Index
i10 Index
Citation Counts
17
18
2,393
Paleogeography
Paleoclimate
Plate tectonics
Geophysics
Climate variability
Rankings
Ranking Based On Selection: 51
Bai Ling Wang
Metrics
H-Index
i10 Index
Citation Counts
17
25
840
Geometry and topology
Geometric analysis
Mathematical Physics
Rankings
Ranking Based On Selection: 52
Rachel Downey
Metrics
H-Index
i10 Index
Citation Counts
16
23
2,088
Data Stewardship
Marine Biogeography
Invertebrate taxonomy
Deep-sea
Polar Environmental Change
Rankings
Ranking Based On Selection: 53
Caroline M Eakin
Metrics
H-Index
i10 Index
Citation Counts
14
16
728
Observational Seismology
Mantle Dynamics
Seismic Anisotropy
Plate Tectonics
Rankings
Ranking Based On Selection: 54
Kial D Stewart
Metrics
H-Index
i10 Index
Citation Counts
13
14
1,141
Rankings
Ranking Based On Selection: 55
Barry Fordham
Metrics
H-Index
i10 Index
Citation Counts
11
12
637
Phylogeny
Cibicidid Foraminifera
Planktonic/Planktic Foraminifera
Conodonts
Phylogenetics
Rankings
Ranking Based On Selection: 56
Felicity H Williams
Metrics
H-Index
i10 Index
Citation Counts
8
8
1,628
Glacial isostatic adjustment
sea-level reconstruction.
Rankings
Ranking Based On Selection: 57
Dirk Van Der Kley
Metrics
H-Index
i10 Index
Citation Counts
8
7
165
Geoeconomics
International Political Economy
PRC Foreign Policy
Rankings
Ranking Based On Selection: 58
Heather Scott Gagan
Metrics
H-Index
i10 Index
Citation Counts
8
7
544
Palaeoclimate
Climate Change
Stable Isotopes
Corals
Speleothems
Rankings
Ranking Based On Selection: 59
Xiaolong Ma
Metrics
H-Index
i10 Index
Citation Counts
7
5
116
Rankings
Ranking Based On Selection: 60
Michael Wellington
Metrics
H-Index
i10 Index
Citation Counts
5
4
103
Rankings
Ranking Based On Selection: 61
Zhi Wei
Metrics
H-Index
i10 Index
Citation Counts
5
4
73
Rankings
Ranking Based On Selection: 62
Sima Mousavi
Metrics
H-Index
i10 Index
Citation Counts
5
3
117
Rankings
Ranking Based On Selection: 63
Karina Judd
Metrics
H-Index
i10 Index
Citation Counts
4
3
144
science communication
inclusion in STEM
science in popular culture
geochemistry
geoarchaeology
Rankings
Ranking Based On Selection: 64
Shubham Agrawal
Metrics
H-Index
i10 Index
Citation Counts
4
2
59
Rankings
Ranking Based On Selection: 65
Victor A Piedrahita
Metrics
H-Index
i10 Index
Citation Counts
4
2
46
Rankings
Ranking Based On Selection: 66
Matthias Scheiter
Metrics
H-Index
i10 Index
Citation Counts
3
2
42
Machine Learning
Inverse Theory
Bayesian Statistics
Glaciology
Seismology
Rankings
Ranking Based On Selection: 67
Thuany Costa De Lima SheHer
Metrics
H-Index
i10 Index
Citation Counts
3
2
29
seismology
global observational seismology
inner core
geophysics
Rankings
Ranking Based On Selection: 68
Brett M Knowles
Metrics
H-Index
i10 Index
Citation Counts
3
1
71
Geochemistry
Analytical chemistry
Environmental chemistry
Rankings
Ranking Based On Selection: 69
Siyuan Zhao
Metrics
H-Index
i10 Index
Citation Counts
3
1
56
Rankings
Ranking Based On Selection: 70
Jinyin Hu
Metrics
H-Index
i10 Index
Citation Counts
3
1
28
Rankings
Ranking Based On Selection: 71
Yuwei Li
Metrics
H-Index
i10 Index
Citation Counts
3
0
17
Rankings
Ranking Based On Selection: 72
Ruotong Huang
Metrics
H-Index
i10 Index
Citation Counts
2
2
30
Geologic carbon sequestration
Multiphase flow in porous media
Low-carbon steel making
Rankings
Ranking Based On Selection: 73
Caleb Bishop
Metrics
H-Index
i10 Index
Citation Counts
2
1
32
Rankings
Ranking Based On Selection: 74
Kathleen Marie Harazin
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
paleoceanography
paleoclimatology
trace metal chemistry
chemical oceanography
marine geochemistry
Rankings
Ranking Based On Selection: 76
Durgalakshmi
Metrics
H-Index
i10 Index
Citation Counts
2
1
16
Rankings
Ranking Based On Selection: 77
Carlos Carrasco Godoy
Metrics
H-Index
i10 Index
Citation Counts
2
0
13
Rankings
Ranking Based On Selection: 78
Jemi Ahnaf
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Rankings
Ranking Based On Selection: 79
Abhay Pandey
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Rankings
Ranking Based On Selection: 80
Thomas Aj Merry
Metrics
H-Index
i10 Index
Citation Counts
1
1
15
Rankings
Ranking Based On Selection: 81
Srijita Ray
Metrics
H-Index
i10 Index
Citation Counts
1
1
11
Rankings
Ranking Based On Selection: 82
Buse Turunçtur
Metrics
H-Index
i10 Index
Citation Counts
1
0
6
Seismology
Inverse theory
Probabilistic Inversion
Ambient seismic noise
Anisotropy