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" (873,690 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
Andy Baker
groundwater
caves and karst
climate
organic carbon characterisation
isotope geochemistry
Metrics
H-Index
i10 Index
Citation
88
254
30,705
* Rankings
Ranking Based On Selection: 3
Chris Rizos
geodesy
gnss
geospatial
navigation
positioning
Metrics
H-Index
i10 Index
Citation
71
379
21,647
* Rankings
Ranking Based On Selection: 5
Jinling Wang
Surveying
Geomatics
Mapping
Positioning
Navigation
Metrics
H-Index
i10 Index
Citation
64
232
13,101
* Rankings
Ranking Based On Selection: 6
Nasser Khalili
Geotechnical Engineering
Soil Mechanics
Geomechanics
Unsaturated Soils
Metrics
H-Index
i10 Index
Citation
55
136
11,184
* Rankings
Ranking Based On Selection: 7
Mahesh Suryawanshi
Semiconductor QDs
Solar Fuels
Photovoltaics
BIPV
AgriPV
Metrics
H-Index
i10 Index
Citation
43
87
5,191
* Rankings
Ranking Based On Selection: 8
Martin S Andersen
Groundwater
Water quality
Hydrogeology
Geochemistry
Surface Water-Groundwater Interaction
Metrics
H-Index
i10 Index
Citation
42
92
5,150
* Rankings
Ranking Based On Selection: 9
Catherine Chagué
Natural hazards
tsunamis
geochemistry
environmental geochemistry
Metrics
H-Index
i10 Index
Citation
41
85
5,988
* Rankings
Ranking Based On Selection: 10
Ian Acworth
Hydrogeology
groundwater
hydrogeophysics
dryland salinity
Metrics
H-Index
i10 Index
Citation
38
86
5,976

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
Ismet Canbulat
Rock Mechanics
Geotechnical Engineering
Mining Engineering
AI
visualisation
Metrics
H-Index
i10 Index
Citation
31
72
2,699
* Rankings
Ranking Based On Selection: 12
Samsung Lim
geospatial information
geographic information
lidar
remote sensing
GPS
Metrics
H-Index
i10 Index
Citation
31
87
3,450
* Rankings
Ranking Based On Selection: 13
Joung Oh
Geomechanics
Tunneling
Underground Excavation
Metrics
H-Index
i10 Index
Citation
27
49
2,115
Bryce FJ Kelly
Earth and Environmental Sciences: Air (greenhouse gases)
Water (quality and quantity)
Metrics
H-Index
i10 Index
Citation
26
40
1,895
Zoë Thomas
Palaeoclimate
Abrupt Climate Change
Tipping Points
Metrics
H-Index
i10 Index
Citation
22
33
1,173
David Hutchinson
Paleoceanography
Climate modelling
Physical oceanography
Metrics
H-Index
i10 Index
Citation
17
22
1,373
Christian Anibas
hydrogeology
groundwater-surface water interaction
heat tracer
wetlands
geothermal energy
Metrics
H-Index
i10 Index
Citation
17
20
937
Paul Lennox
geology
structural geology
granites
deformation
Metrics
H-Index
i10 Index
Citation
14
20
760
Muhammad Asad Pirzada
Geomechanics
Hydraulic Fracturing
Well Logging
Stimulation
Coal Burst
Metrics
H-Index
i10 Index
Citation
7
7
189
Hamid Mortazavi Bak
Geotechnical Engineering
Helical Pile
Bio-cemented Soil
MICP Method
Metrics
H-Index
i10 Index
Citation
7
6
188
Soodeh Samimi
Computational Geomechanics
Hydraulic Fracturing
Multiphase Fluid Flow and Heat Transfer in Porous
Metrics
H-Index
i10 Index
Citation
5
5
176
Arash Tootoonchi
Geotechnical Engineering
Computational Geomechanics
Meshfree methods
Constitutive modelling
Metrics
H-Index
i10 Index
Citation
5
3
96
Lisa Tannock
Geology
Geothermal
Fault Zones
Fracturing & Fluid Flow
Microstructures
Metrics
H-Index
i10 Index
Citation
4
3
59
Rahim Saffari
Geomechanics
Unsaturated soils
Numerical Modeling
Soil Improvement
Biogeotechnics
Metrics
H-Index
i10 Index
Citation
4
2
103
Armin Shirbazo
Geomechanics
Hydraulic Fracturing
Optimization
Neural Network
Machine Learning
Metrics
H-Index
i10 Index
Citation
4
2
38
Annette Stellema
Physical Oceanography
Climate Science
Marine Biogeochemistry
Software Engineering
Metrics
H-Index
i10 Index
Citation
3
3
84
Ali Pirjalili
Geotechnical Engineering
Unsaturated Soils
Geo-Energy Applications
Thermal properties of soil
Metrics
H-Index
i10 Index
Citation
3
2
31
Penghao Zhang
Geotechnical Engineering
Numerical Modelling
Solid mechanics
Metrics
H-Index
i10 Index
Citation
2
1
102
Rebecca L Parker
Palaeoceanography
Continental Ice Sheets
Isotope Geochemistry
Micropalaeontology
Chronology
Metrics
H-Index
i10 Index
Citation
2
1
18
Himadri Saini
Oceanography
Marine biogeochemistry
Marine phytoplankton
Metrics
H-Index
i10 Index
Citation
2
0
14
Rankings
Ranking Based On Selection: 1
Andy Baker
Metrics
H-Index
i10 Index
Citation Counts
88
254
30,705
groundwater
caves and karst
climate
organic carbon characterisation
isotope geochemistry
Rankings
Ranking Based On Selection: 2
Malcolm Walter
Metrics
H-Index
i10 Index
Citation Counts
75
170
20,476
Rankings
Ranking Based On Selection: 3
Chris Rizos
Metrics
H-Index
i10 Index
Citation Counts
71
379
21,647
geodesy
gnss
geospatial
navigation
positioning
Rankings
Ranking Based On Selection: 4
Martin Van Kranendonk
Metrics
H-Index
i10 Index
Citation Counts
67
165
15,554
Rankings
Ranking Based On Selection: 5
Jinling Wang
Metrics
H-Index
i10 Index
Citation Counts
64
232
13,101
Surveying
Geomatics
Mapping
Positioning
Navigation
Rankings
Ranking Based On Selection: 6
Nasser Khalili
Metrics
H-Index
i10 Index
Citation Counts
55
136
11,184
Geotechnical Engineering
Soil Mechanics
Geomechanics
Unsaturated Soils
Rankings
Ranking Based On Selection: 7
Mahesh Suryawanshi
Metrics
H-Index
i10 Index
Citation Counts
43
87
5,191
Semiconductor QDs
Solar Fuels
Photovoltaics
BIPV
AgriPV
Rankings
Ranking Based On Selection: 8
Martin S Andersen
Metrics
H-Index
i10 Index
Citation Counts
42
92
5,150
Groundwater
Water quality
Hydrogeology
Geochemistry
Surface Water-Groundwater Interaction
Rankings
Ranking Based On Selection: 9
Catherine Chagué
Metrics
H-Index
i10 Index
Citation Counts
41
85
5,988
Natural hazards
tsunamis
geochemistry
environmental geochemistry
Rankings
Ranking Based On Selection: 10
Ian Acworth
Metrics
H-Index
i10 Index
Citation Counts
38
86
5,976
Hydrogeology
groundwater
hydrogeophysics
dryland salinity

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
Ismet Canbulat
Metrics
H-Index
i10 Index
Citation Counts
31
72
2,699
Rock Mechanics
Geotechnical Engineering
Mining Engineering
AI
visualisation
Rankings
Ranking Based On Selection: 12
Samsung Lim
Metrics
H-Index
i10 Index
Citation Counts
31
87
3,450
geospatial information
geographic information
lidar
remote sensing
GPS
Rankings
Ranking Based On Selection: 13
Joung Oh
Metrics
H-Index
i10 Index
Citation Counts
27
49
2,115
Rankings
Ranking Based On Selection: 14
An Ninh Pham
Metrics
H-Index
i10 Index
Citation Counts
26
31
3,159
Rankings
Ranking Based On Selection: 15
David Cohen
Metrics
H-Index
i10 Index
Citation Counts
26
58
2,172
Rankings
Ranking Based On Selection: 16
Bryce FJ Kelly
Metrics
H-Index
i10 Index
Citation Counts
26
40
1,895
Earth and Environmental Sciences: Air (greenhouse gases)
Water (quality and quantity)
Rankings
Ranking Based On Selection: 17
wendy s shaw
Metrics
H-Index
i10 Index
Citation Counts
23
36
1,804
Rankings
Ranking Based On Selection: 18
Zoë Thomas
Metrics
H-Index
i10 Index
Citation Counts
22
33
1,173
Palaeoclimate
Abrupt Climate Change
Tipping Points
Rankings
Ranking Based On Selection: 19
David Hutchinson
Metrics
H-Index
i10 Index
Citation Counts
17
22
1,373
Paleoceanography
Climate modelling
Physical oceanography
Rankings
Ranking Based On Selection: 20
Christian Anibas
Metrics
H-Index
i10 Index
Citation Counts
17
20
937
hydrogeology
groundwater-surface water interaction
heat tracer
wetlands
geothermal energy
Rankings
Ranking Based On Selection: 21
Paul Lennox
Metrics
H-Index
i10 Index
Citation Counts
14
20
760
geology
structural geology
granites
deformation
Rankings
Ranking Based On Selection: 22
Muhammad Asad Pirzada
Metrics
H-Index
i10 Index
Citation Counts
7
7
189
Geomechanics
Hydraulic Fracturing
Well Logging
Stimulation
Coal Burst
Rankings
Ranking Based On Selection: 23
Hamid Mortazavi Bak
Metrics
H-Index
i10 Index
Citation Counts
7
6
188
Geotechnical Engineering
Helical Pile
Bio-cemented Soil
MICP Method
Rankings
Ranking Based On Selection: 24
Luke Steller
Metrics
H-Index
i10 Index
Citation Counts
6
5
182
Astrobiology
geochemistry
hot springs
isotopes
Rankings
Ranking Based On Selection: 25
Soodeh Samimi
Metrics
H-Index
i10 Index
Citation Counts
5
5
176
Computational Geomechanics
Hydraulic Fracturing
Multiphase Fluid Flow and Heat Transfer in Porous
Rankings
Ranking Based On Selection: 26
Arash Tootoonchi
Metrics
H-Index
i10 Index
Citation Counts
5
3
96
Geotechnical Engineering
Computational Geomechanics
Meshfree methods
Constitutive modelling
Rankings
Ranking Based On Selection: 27
Lisa Tannock
Metrics
H-Index
i10 Index
Citation Counts
4
3
59
Geology
Geothermal
Fault Zones
Fracturing & Fluid Flow
Microstructures
Rankings
Ranking Based On Selection: 28
Rahim Saffari
Metrics
H-Index
i10 Index
Citation Counts
4
2
103
Geomechanics
Unsaturated soils
Numerical Modeling
Soil Improvement
Biogeotechnics
Rankings
Ranking Based On Selection: 29
Armin Shirbazo
Metrics
H-Index
i10 Index
Citation Counts
4
2
38
Geomechanics
Hydraulic Fracturing
Optimization
Neural Network
Machine Learning
Rankings
Ranking Based On Selection: 30
Annette Stellema
Metrics
H-Index
i10 Index
Citation Counts
3
3
84
Physical Oceanography
Climate Science
Marine Biogeochemistry
Software Engineering
Rankings
Ranking Based On Selection: 31
Sahand Tadbiri
Metrics
H-Index
i10 Index
Citation Counts
3
2
90
Geoscience
Structural Geology
Engineering Geology
Rankings
Ranking Based On Selection: 32
Ali Pirjalili
Metrics
H-Index
i10 Index
Citation Counts
3
2
31
Geotechnical Engineering
Unsaturated Soils
Geo-Energy Applications
Thermal properties of soil
Rankings
Ranking Based On Selection: 33
Penghao Zhang
Metrics
H-Index
i10 Index
Citation Counts
2
1
102
Geotechnical Engineering
Numerical Modelling
Solid mechanics
Rankings
Ranking Based On Selection: 34
Rebecca L Parker
Metrics
H-Index
i10 Index
Citation Counts
2
1
18
Palaeoceanography
Continental Ice Sheets
Isotope Geochemistry
Micropalaeontology
Chronology
Rankings
Ranking Based On Selection: 35
Himadri Saini
Metrics
H-Index
i10 Index
Citation Counts
2
0
14
Oceanography
Marine biogeochemistry
Marine phytoplankton
Rankings
Ranking Based On Selection: 36
Michael A Dello-Iacovo
Metrics
H-Index
i10 Index
Citation Counts
2
0
11
Rankings
Ranking Based On Selection: 37
Kirsten Banks
Metrics
H-Index
i10 Index
Citation Counts
2
0
8