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
Martin Sharp
Glaciology
Arctic
Climate Change
Glacier Biogeochemistry
Metrics
H-Index
i10 Index
Citation
82
200
21,219
* Rankings
Ranking Based On Selection :2
Larry M Heaman
Geochronology
U-Pb Geochronology
Geochemistry
Crustal Evolution
Mantle Evolution
Metrics
H-Index
i10 Index
Citation
81
263
22,425
* Rankings
Ranking Based On Selection :3
Kurt Konhauser
geomicrobiology
geobiology
geochemistry
banded iron formations
biomineralization
Metrics
H-Index
i10 Index
Citation
80
245
23,798
* Rankings
Ranking Based On Selection :4
Arturo Sanchez Azofeifa
Tropical dry forests
Forest dynamics
hyperspectral remote sensing
LiDAR
Lianas
Metrics
H-Index
i10 Index
Citation
80
218
25,220
* Rankings
Ranking Based On Selection :6
William Shotyk
Environmental geochemistry
aquatic chemistry
soil chemistry
environmental chemistry
peat bog archives
Metrics
H-Index
i10 Index
Citation
74
210
18,314
* Rankings
Ranking Based On Selection :7
K Muehlenbachs
geochemistry
stable isotopes
amber
shale gas
early life
Metrics
H-Index
i10 Index
Citation
72
175
14,710
* Rankings
Ranking Based On Selection :8
Brian Jones
Sedimentology
stratigraphy
paleontology
Metrics
H-Index
i10 Index
Citation
65
244
13,772
* Rankings
Ranking Based On Selection :9
Murray Gingras
sedimentology
ichnology
stratigraphy
paleontology
resources
Metrics
H-Index
i10 Index
Citation
63
188
12,739
* Rankings
Ranking Based On Selection :10
C Derek Martin
Geotechnical Engineering
Rock Mechanics
Metrics
H-Index
i10 Index
Citation
60
168
19,707
* Rankings
Ranking Based On Selection :11
Richard A Stern
secondary ion mass spectrometry
isotope geochemistry
geochronology
Metrics
H-Index
i10 Index
Citation
59
167
11,917
* Rankings
Ranking Based On Selection :12
Octavian Catuneanu
Sedimentology
Stratigraphy
Basin Analysis
Metrics
H-Index
i10 Index
Citation
59
144
18,278
* Rankings
Ranking Based On Selection :13
Daniel S Alessi
geochemistry
geomicrobiology
water resources
lithium extraction
Metrics
H-Index
i10 Index
Citation
58
143
11,022
* Rankings
Ranking Based On Selection :14
Mauricio D Sacchi
Geophysics
Seismic Imaging
Seismic Data Processing
Exploration Seismology
Seismic Signal Processing
Metrics
H-Index
i10 Index
Citation
58
196
14,588
* Rankings
Ranking Based On Selection :15
Duane Froese
Quaternary geology
Beringia
Permafrost
Tephrochronology
Metrics
H-Index
i10 Index
Citation
57
130
14,498
* Rankings
Ranking Based On Selection :16
Martyn Unsworth
Geophysics
tectonics
magnetotellurics
tibet
Metrics
H-Index
i10 Index
Citation
54
121
12,063
* Rankings
Ranking Based On Selection :17
Thomas Stachel
Diamond
Diamonds
Petrology
Geochemistry
Metrics
H-Index
i10 Index
Citation
54
129
9,166
* Rankings
Ranking Based On Selection :19
Kevin Devito
Groundwater-surface water interactions
forest hydrology
forest biogeochemistry
wetland hydrology
wetland biogeochemistry
Metrics
H-Index
i10 Index
Citation
51
108
7,956
* Rankings
Ranking Based On Selection :20
Benoit Rivard
Imaging spectroscopy
mineral exploration
geology
environmental monitoring
Metrics
H-Index
i10 Index
Citation
50
112
8,451
* Rankings
Ranking Based On Selection :21
Thomas Chacko
geology
geochemistry
petrology
crustal evolution
Precambrian geology
Metrics
H-Index
i10 Index
Citation
46
71
8,423
* Rankings
Ranking Based On Selection :22
Thomas Chacko
Precambrian geology
metamorphic petrology
stable isotope geochemistry
Metrics
H-Index
i10 Index
Citation
45
69
7,720
* Rankings
Ranking Based On Selection :23
JD Wilson
Meteorology
Micrometeorology
Boundary-Layer Meteorology
Turbulence
Atmospheric dispersion
Metrics
H-Index
i10 Index
Citation
44
93
7,408
* Rankings
Ranking Based On Selection :26
John WF Waldron
Tectonics
Structural Geology
Sedimentology
Metrics
H-Index
i10 Index
Citation
38
85
4,001
* Rankings
Ranking Based On Selection :27
Andrew Bush
global climate
atmosphere-ocean-ice interactions
human-environment interactions
dynamics
Metrics
H-Index
i10 Index
Citation
38
59
4,765
* Rankings
Ranking Based On Selection :28
Carl Mendoza
Hydrogeology
hydrology
groundwater modelling
gas transport
reclamation
Metrics
H-Index
i10 Index
Citation
35
69
4,549
* Rankings
Ranking Based On Selection :29
John Paul Zonneveld
Sedimentology
stratigraphy
ichnology
paleontology
Metrics
H-Index
i10 Index
Citation
35
91
4,633
* Rankings
Ranking Based On Selection :30
Tara Mcgee
Hazards
wildfire
public participation
Metrics
H-Index
i10 Index
Citation
34
56
3,544
* Rankings
Ranking Based On Selection :34
Matthew Steele Macinnis
Hydrothermal fluids
fluid-rock interaction
fluid inclusions
ore deposits
Metrics
H-Index
i10 Index
Citation
32
73
4,031
* Rankings
Ranking Based On Selection :37
Muhammad Arslan
Reclamation
Sustainability
NBS
Treatment Wetlands
Biogeochemistry
Metrics
H-Index
i10 Index
Citation
29
57
3,177
* Rankings
Ranking Based On Selection :38
Claire Currie
geophysics
geodynamics
subduction zones
continental tectonics
Metrics
H-Index
i10 Index
Citation
29
41
4,138
* Rankings
Ranking Based On Selection :40
Ma Powell
Geochemistry
environment
soil-plant-water system
fossil fuels
Metrics
H-Index
i10 Index
Citation
29
37
2,670
* Rankings
Ranking Based On Selection :41
Brian Smerdon
groundwater
hydrogeology
groundwater-surface water interactions
hydrology
Metrics
H-Index
i10 Index
Citation
27
37
2,695
* Rankings
Ranking Based On Selection :42
Alberto V Reyes
Quaternary geology
Beringia
Greenland
interglaciations
permafrost
Metrics
H-Index
i10 Index
Citation
27
35
2,189
* Rankings
Ranking Based On Selection :43
Derek B Apel
Computational Modelling
Ventilation
Geotechnical Engineering
Mining
Rock Mechanics
Metrics
H-Index
i10 Index
Citation
24
44
2,475
* Rankings
Ranking Based On Selection :44
Britta JL Jensen
Cenozoic geology
stratigraphy
volcanology
tephrostratigraphy
paleoclimate
Metrics
H-Index
i10 Index
Citation
23
37
1,613
Pilar Lecumberri Sanchez
geochemistry
ore deposits
fluid inclusions
economic geology
hydrothermal alteration
Metrics
H-Index
i10 Index
Citation
19
25
2,079
S Jeff Birchall
resilience
climate change action
climate adaptation
urban and regional planning
disaster risk reduction
Metrics
H-Index
i10 Index
Citation
19
27
1,257
Tommy Noernberg
Geochemistry
analytical chemistry
trace element analysis
Metrics
H-Index
i10 Index
Citation
18
22
1,183
Chris L Schneider
Devonian Geology
Stratigraphy
Carbonate Sedimentology
Invertebrate Paleoecology
Earth Systems Interactions
Metrics
H-Index
i10 Index
Citation
17
23
802
Christiaan Willem Langenberg
Structural geology
Economic Geology
Sustainable Development
Metrics
H-Index
i10 Index
Citation
16
30
875
Korhan Ayranci
Sedimentology
Ichnology
Biology
Neoichnology
Shale gas
Metrics
H-Index
i10 Index
Citation
14
21
979
Mahya Roustaei
Geotechnical engineering
Freeze-thaw cycles
Permafrost
Cold region roads
Metrics
H-Index
i10 Index
Citation
10
11
871
Mimmi Km Nilsson
geochronology
baddeleyite
large igneous provinces
Metrics
H-Index
i10 Index
Citation
10
10
530
Gian Matharu
Geophysics
Seismology
Seismic imaging
Full waveform inversion
Metrics
H-Index
i10 Index
Citation
5
4
81
Dongming Zheng
Pressuremeter
Geotechnical Engineering
Uncertainty quantification
Bayesian inference
Metrics
H-Index
i10 Index
Citation
4
2
64
David M Dockman
Geochronology
Igneous Systems
Tectonics
Geochemistry
Isotopes
Metrics
H-Index
i10 Index
Citation
2
1
66
Kira Holland
Holocene paleoclimatology
Stable isotopes
Ice geochemistry
Permafrost
Metrics
H-Index
i10 Index
Citation
2
1
30
Andrew Kohlenberg
biogeochemistry
peatland ecology
ecology
fire science
Metrics
H-Index
i10 Index
Citation
1
1
47
Rankings
Ranking Based On Selection: 1
Martin Sharp
Metrics
H-Index
i10 Index
Citation Counts
82
200
21,219
Glaciology
Arctic
Climate Change
Glacier Biogeochemistry
Rankings
Ranking Based On Selection: 2
Larry M Heaman
Metrics
H-Index
i10 Index
Citation Counts
81
263
22,425
Geochronology
U-Pb Geochronology
Geochemistry
Crustal Evolution
Mantle Evolution
Rankings
Ranking Based On Selection: 3
Kurt Konhauser
Metrics
H-Index
i10 Index
Citation Counts
80
245
23,798
geomicrobiology
geobiology
geochemistry
banded iron formations
biomineralization
Rankings
Ranking Based On Selection: 4
Arturo Sanchez Azofeifa
Metrics
H-Index
i10 Index
Citation Counts
80
218
25,220
Tropical dry forests
Forest dynamics
hyperspectral remote sensing
LiDAR
Lianas
Rankings
Ranking Based On Selection: 5
Robert A Creaser
Metrics
H-Index
i10 Index
Citation Counts
80
250
21,319
Rankings
Ranking Based On Selection: 6
William Shotyk
Metrics
H-Index
i10 Index
Citation Counts
74
210
18,314
Environmental geochemistry
aquatic chemistry
soil chemistry
environmental chemistry
peat bog archives
Rankings
Ranking Based On Selection: 7
K Muehlenbachs
Metrics
H-Index
i10 Index
Citation Counts
72
175
14,710
geochemistry
stable isotopes
amber
shale gas
early life
Rankings
Ranking Based On Selection: 8
Brian Jones
Metrics
H-Index
i10 Index
Citation Counts
65
244
13,772
Rankings
Ranking Based On Selection: 9
Murray Gingras
Metrics
H-Index
i10 Index
Citation Counts
63
188
12,739
sedimentology
ichnology
stratigraphy
paleontology
resources
Rankings
Ranking Based On Selection: 10
C Derek Martin
Metrics
H-Index
i10 Index
Citation Counts
60
168
19,707
Rankings
Ranking Based On Selection: 11
Richard A Stern
Metrics
H-Index
i10 Index
Citation Counts
59
167
11,917
secondary ion mass spectrometry
isotope geochemistry
geochronology
Rankings
Ranking Based On Selection: 12
Octavian Catuneanu
Metrics
H-Index
i10 Index
Citation Counts
59
144
18,278
Rankings
Ranking Based On Selection: 13
Daniel S Alessi
Metrics
H-Index
i10 Index
Citation Counts
58
143
11,022
geochemistry
geomicrobiology
water resources
lithium extraction
Rankings
Ranking Based On Selection: 14
Mauricio D Sacchi
Metrics
H-Index
i10 Index
Citation Counts
58
196
14,588
Geophysics
Seismic Imaging
Seismic Data Processing
Exploration Seismology
Seismic Signal Processing
Rankings
Ranking Based On Selection: 15
Duane Froese
Metrics
H-Index
i10 Index
Citation Counts
57
130
14,498
Quaternary geology
Beringia
Permafrost
Tephrochronology
Rankings
Ranking Based On Selection: 16
Martyn Unsworth
Metrics
H-Index
i10 Index
Citation Counts
54
121
12,063
Rankings
Ranking Based On Selection: 17
Thomas Stachel
Metrics
H-Index
i10 Index
Citation Counts
54
129
9,166
Rankings
Ranking Based On Selection: 18
Clayton V Deutsch
Metrics
H-Index
i10 Index
Citation Counts
54
199
24,826
Rankings
Ranking Based On Selection: 19
Kevin Devito
Metrics
H-Index
i10 Index
Citation Counts
51
108
7,956
Groundwater-surface water interactions
forest hydrology
forest biogeochemistry
wetland hydrology
wetland biogeochemistry
Rankings
Ranking Based On Selection: 20
Benoit Rivard
Metrics
H-Index
i10 Index
Citation Counts
50
112
8,451
Imaging spectroscopy
mineral exploration
geology
environmental monitoring
Rankings
Ranking Based On Selection: 21
Thomas Chacko
Metrics
H-Index
i10 Index
Citation Counts
46
71
8,423
geology
geochemistry
petrology
crustal evolution
Precambrian geology
Rankings
Ranking Based On Selection: 22
Thomas Chacko
Metrics
H-Index
i10 Index
Citation Counts
45
69
7,720
Precambrian geology
metamorphic petrology
stable isotope geochemistry
Rankings
Ranking Based On Selection: 23
JD Wilson
Metrics
H-Index
i10 Index
Citation Counts
44
93
7,408
Meteorology
Micrometeorology
Boundary-Layer Meteorology
Turbulence
Atmospheric dispersion
Rankings
Ranking Based On Selection: 24
Robert W Luth
Metrics
H-Index
i10 Index
Citation Counts
41
70
5,031
Rankings
Ranking Based On Selection: 25
Paul Myers
Metrics
H-Index
i10 Index
Citation Counts
38
92
4,416
Rankings
Ranking Based On Selection: 26
John WF Waldron
Metrics
H-Index
i10 Index
Citation Counts
38
85
4,001
Rankings
Ranking Based On Selection: 27
Andrew Bush
Metrics
H-Index
i10 Index
Citation Counts
38
59
4,765
global climate
atmosphere-ocean-ice interactions
human-environment interactions
dynamics
Rankings
Ranking Based On Selection: 28
Carl Mendoza
Metrics
H-Index
i10 Index
Citation Counts
35
69
4,549
Hydrogeology
hydrology
groundwater modelling
gas transport
reclamation
Rankings
Ranking Based On Selection: 29
John Paul Zonneveld
Metrics
H-Index
i10 Index
Citation Counts
35
91
4,633
Sedimentology
stratigraphy
ichnology
paleontology
Rankings
Ranking Based On Selection: 30
Tara Mcgee
Metrics
H-Index
i10 Index
Citation Counts
34
56
3,544
Rankings
Ranking Based On Selection: 31
Paleomagnetism
Plate Tectonics
Paleoclimate
Climate
Geophysics
Rankings
Ranking Based On Selection: 32
Rick Chalaturnyk
Metrics
H-Index
i10 Index
Citation Counts
33
93
4,496
Rankings
Ranking Based On Selection: 33
Alireza Nouri
Metrics
H-Index
i10 Index
Citation Counts
33
81
3,153
Rankings
Ranking Based On Selection: 34
Matthew Steele Macinnis
Metrics
H-Index
i10 Index
Citation Counts
32
73
4,031
Hydrothermal fluids
fluid-rock interaction
fluid inclusions
ore deposits
Rankings
Ranking Based On Selection: 35
Nicholas Harris
Metrics
H-Index
i10 Index
Citation Counts
32
56
3,826
Rankings
Ranking Based On Selection: 36
Long Li
Metrics
H-Index
i10 Index
Citation Counts
31
67
4,802
Rankings
Ranking Based On Selection: 37
Muhammad Arslan
Metrics
H-Index
i10 Index
Citation Counts
29
57
3,177
Reclamation
Sustainability
NBS
Treatment Wetlands
Biogeochemistry
Rankings
Ranking Based On Selection: 38
Claire Currie
Metrics
H-Index
i10 Index
Citation Counts
29
41
4,138
geophysics
geodynamics
subduction zones
continental tectonics
Rankings
Ranking Based On Selection: 39
EP Lozowski
Metrics
H-Index
i10 Index
Citation Counts
29
81
2,966
Rankings
Ranking Based On Selection: 40
Ma Powell
Metrics
H-Index
i10 Index
Citation Counts
29
37
2,670
Geochemistry
environment
soil-plant-water system
fossil fuels
Rankings
Ranking Based On Selection: 41
Brian Smerdon
Metrics
H-Index
i10 Index
Citation Counts
27
37
2,695
groundwater
hydrogeology
groundwater-surface water interactions
hydrology
Rankings
Ranking Based On Selection: 42
Alberto V Reyes
Metrics
H-Index
i10 Index
Citation Counts
27
35
2,189
Quaternary geology
Beringia
Greenland
interglaciations
permafrost
Rankings
Ranking Based On Selection: 43
Derek B Apel
Metrics
H-Index
i10 Index
Citation Counts
24
44
2,475
Computational Modelling
Ventilation
Geotechnical Engineering
Mining
Rock Mechanics
Rankings
Ranking Based On Selection: 44
Britta JL Jensen
Metrics
H-Index
i10 Index
Citation Counts
23
37
1,613
Cenozoic geology
stratigraphy
volcanology
tephrostratigraphy
paleoclimate
Rankings
Ranking Based On Selection: 45
Ge Swaters
Metrics
H-Index
i10 Index
Citation Counts
23
48
1,511
Rankings
Ranking Based On Selection: 46
Scott Andrew Dufrane
Metrics
H-Index
i10 Index
Citation Counts
22
41
2,764
Rankings
Ranking Based On Selection: 47
Elena Konstantinovskaya Konstantinovskaia
Metrics
H-Index
i10 Index
Citation Counts
20
28
1,674
Rankings
Ranking Based On Selection: 48
Pilar Lecumberri Sanchez
Metrics
H-Index
i10 Index
Citation Counts
19
25
2,079
geochemistry
ore deposits
fluid inclusions
economic geology
hydrothermal alteration
Rankings
Ranking Based On Selection: 49
S Jeff Birchall
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,257
resilience
climate change action
climate adaptation
urban and regional planning
disaster risk reduction
Rankings
Ranking Based On Selection: 50
Tommy Noernberg
Metrics
H-Index
i10 Index
Citation Counts
18
22
1,183
Geochemistry
analytical chemistry
trace element analysis
Rankings
Ranking Based On Selection: 51
Chris L Schneider
Metrics
H-Index
i10 Index
Citation Counts
17
23
802
Devonian Geology
Stratigraphy
Carbonate Sedimentology
Invertebrate Paleoecology
Earth Systems Interactions
Rankings
Ranking Based On Selection: 52
Christiaan Willem Langenberg
Metrics
H-Index
i10 Index
Citation Counts
16
30
875
Structural geology
Economic Geology
Sustainable Development
Rankings
Ranking Based On Selection: 53
Korhan Ayranci
Metrics
H-Index
i10 Index
Citation Counts
14
21
979
Sedimentology
Ichnology
Biology
Neoichnology
Shale gas
Rankings
Ranking Based On Selection: 54
Emily Block
Metrics
H-Index
i10 Index
Citation Counts
13
13
4,765
Rankings
Ranking Based On Selection: 55
Silawat Jeeravipoolvarn
Metrics
H-Index
i10 Index
Citation Counts
13
14
494
Rankings
Ranking Based On Selection: 56
Mahya Roustaei
Metrics
H-Index
i10 Index
Citation Counts
10
11
871
Geotechnical engineering
Freeze-thaw cycles
Permafrost
Cold region roads
Rankings
Ranking Based On Selection: 57
Mimmi Km Nilsson
Metrics
H-Index
i10 Index
Citation Counts
10
10
530
geochronology
baddeleyite
large igneous provinces
Rankings
Ranking Based On Selection: 58
Qiwei Zhang
Metrics
H-Index
i10 Index
Citation Counts
8
6
131
Rankings
Ranking Based On Selection: 59
Vicente Oropeza
Metrics
H-Index
i10 Index
Citation Counts
7
7
1,067
Rankings
Ranking Based On Selection: 60
Gian Matharu
Metrics
H-Index
i10 Index
Citation Counts
5
4
81
Geophysics
Seismology
Seismic imaging
Full waveform inversion
Rankings
Ranking Based On Selection: 61
Brette Harris
Metrics
H-Index
i10 Index
Citation Counts
4
3
94
Rankings
Ranking Based On Selection: 62
Dongming Zheng
Metrics
H-Index
i10 Index
Citation Counts
4
2
64
Pressuremeter
Geotechnical Engineering
Uncertainty quantification
Bayesian inference
Rankings
Ranking Based On Selection: 63
David M Dockman
Metrics
H-Index
i10 Index
Citation Counts
2
1
66
Geochronology
Igneous Systems
Tectonics
Geochemistry
Isotopes
Rankings
Ranking Based On Selection: 64
Jessica Serbu
Metrics
H-Index
i10 Index
Citation Counts
2
1
48
Rankings
Ranking Based On Selection: 65
Kira Holland
Metrics
H-Index
i10 Index
Citation Counts
2
1
30
Holocene paleoclimatology
Stable isotopes
Ice geochemistry
Permafrost
Rankings
Ranking Based On Selection: 66
Chao Liu
Metrics
H-Index
i10 Index
Citation Counts
2
0
15
Rankings
Ranking Based On Selection: 67
Daniel J Shaw
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Rankings
Ranking Based On Selection: 68
Eduardo Camilo De La Hoz Lozano
Metrics
H-Index
i10 Index
Citation Counts
2
0
6
Rankings
Ranking Based On Selection: 69
Andrew Kohlenberg
Metrics
H-Index
i10 Index
Citation Counts
1
1
47
biogeochemistry
peatland ecology
ecology
fire science
Rankings
Ranking Based On Selection: 70
Jason C Hinde
Metrics
H-Index
i10 Index
Citation Counts
1
1
26
Rankings
Ranking Based On Selection: 71
Fabio Pl Pereira
Metrics
H-Index
i10 Index
Citation Counts
1
0
5