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 :2
Michael E Mann
Earth science
climate
model/data comparison
science communication
Metrics
H-Index
i10 Index
Citation
100
228
50,963
* Rankings
Ranking Based On Selection :3
Michael A Arthur
earth science
geochemistry
paleoclimatology
stable isotopes
Metrics
H-Index
i10 Index
Citation
94
204
34,711
Lee Kump
Paleoceanography
paleoclimatology
geochemistry
geophysiology
Metrics
H-Index
i10 Index
Citation
74
146
22,249
Katherine H Freeman
Biogeochemistry
Organic Geochemistry
Isotope Geochemistry
Biomarkers
Astrobiology
Metrics
H-Index
i10 Index
Citation
74
151
21,291
* Rankings
Ranking Based On Selection :11
Peter Wilf
Paleobotany
Paleobiology
Paleontology
Biogeography
Palaeobotany
Metrics
H-Index
i10 Index
Citation
58
102
14,173
* Rankings
Ranking Based On Selection :12
Klaus Keller
Climate Risk Management
Multisector Dynamics
Robust Decision Making
Climate Solutions
Metrics
H-Index
i10 Index
Citation
53
132
9,340
* Rankings
Ranking Based On Selection :17
Li Li|李黎
reactive transport
catchment hydrology
biogeochemistry
critical zone
water quality
Metrics
H-Index
i10 Index
Citation
44
89
6,045
* Rankings
Ranking Based On Selection :18
Mark E Patzkowsky
paleoecology
biodiversity
extinction
stratigraphic paleobiology
Metrics
H-Index
i10 Index
Citation
39
59
5,853
* Rankings
Ranking Based On Selection :22
Tieyuan Zhu
Geophysics
seismology
seismic attenuation
wave propagation
Metrics
H-Index
i10 Index
Citation
30
53
3,260
John Noel Hooker
Structural diagenesis
Geologic fractures
Structural geology
Earthquake modeling
Metrics
H-Index
i10 Index
Citation
24
34
2,040
Wei Zhi Ç›´ ļŸ
Watershed Hydro-biogeochemistry
Big Data and Deep Learning
Reactive
Metrics
H-Index
i10 Index
Citation
20
26
2,136
Laura Guertin
Geoscience Education
Undergraduate Research
Educational Technology
Marine Geology
Metrics
H-Index
i10 Index
Citation
13
21
718
Eugene C Morgan
geologic carbon storage
reservoir characterization
rock physics
geophysics
wind energy
Metrics
H-Index
i10 Index
Citation
11
13
864
Kayalvizhi Sadayappan
water quality
biogeochemistry
watershed hydrology
deep learning
critical zone science
Metrics
H-Index
i10 Index
Citation
7
5
158
Bryn Stewart
catchment hydrology
biogeochemistry
critical zone science
reactive transport modeling
Metrics
H-Index
i10 Index
Citation
7
4
163
Devon Kerins
biogeochemistry
reactive transport
catchment hydrology
water quality
Metrics
H-Index
i10 Index
Citation
5
3
111
Gourab Kumer Saha
Geospatial Modeling
AI Applications in Hydrology
Geospatial Data Science
GIS and Remote Sensing
Water Resources Engineering
Metrics
H-Index
i10 Index
Citation
5
2
69
Xuanqing Lou
Petroleum and Natural Gas Engineering
Petrophysics
Geology
Geophysics
Core Analysis
Metrics
H-Index
i10 Index
Citation
5
2
97
Ian Rj Lee
cryoseismology
borehole geophysics
remote sensing
glaciology
geophysics
Metrics
H-Index
i10 Index
Citation
4
3
86
Xiong Lei
geophysics
exploration seismology
rock physics
seismic attenuation
Metrics
H-Index
i10 Index
Citation
4
2
41
Ramin Samieifard
Geopedology
Geomorphology
Soil Survey
Agricultural Soil Remote Sensing
Soil Heavy Metals pollution
Metrics
H-Index
i10 Index
Citation
3
2
62
Judit Gonzalez-Santana
Geodesy
Volcanology
Satellite remote sensing
Big data
Natural hazards
Metrics
H-Index
i10 Index
Citation
2
1
28
Juliana K Drozd
organic geochemistry
isotope geochemistry
astrobiology
geobiology
Metrics
H-Index
i10 Index
Citation
1
0
5
Rankings
Ranking Based On Selection: 1
Susan Brantley
Metrics
H-Index
i10 Index
Citation Counts
108
318
37,646
Rankings
Ranking Based On Selection: 2
Michael E Mann
Metrics
H-Index
i10 Index
Citation Counts
100
228
50,963
Earth science
climate
model/data comparison
science communication
Rankings
Ranking Based On Selection: 3
Michael A Arthur
Metrics
H-Index
i10 Index
Citation Counts
94
204
34,711
earth science
geochemistry
paleoclimatology
stable isotopes
Rankings
Ranking Based On Selection: 4
Derek Elsworth
Metrics
H-Index
i10 Index
Citation Counts
90
416
28,573
Rankings
Ranking Based On Selection: 5
Chris Marone
Metrics
H-Index
i10 Index
Citation Counts
80
191
22,053
friction
earthquakes
faulting
granular mechanics
Rankings
Ranking Based On Selection: 6
Lee Kump
Metrics
H-Index
i10 Index
Citation Counts
74
146
22,249
Paleoceanography
paleoclimatology
geochemistry
geophysiology
Rankings
Ranking Based On Selection: 7
Katherine H Freeman
Metrics
H-Index
i10 Index
Citation Counts
74
151
21,291
Biogeochemistry
Organic Geochemistry
Isotope Geochemistry
Biomarkers
Astrobiology
Rankings
Ranking Based On Selection: 8
Timothy Bralower
Metrics
H-Index
i10 Index
Citation Counts
72
169
19,775
Rankings
Ranking Based On Selection: 9
Barry Voight
Metrics
H-Index
i10 Index
Citation Counts
70
170
15,265
Rankings
Ranking Based On Selection: 10
Terry Engelder
Metrics
H-Index
i10 Index
Citation Counts
65
142
15,308
Rankings
Ranking Based On Selection: 11
Peter Wilf
Metrics
H-Index
i10 Index
Citation Counts
58
102
14,173
Paleobotany
Paleobiology
Paleontology
Biogeography
Palaeobotany
Rankings
Ranking Based On Selection: 12
Klaus Keller
Metrics
H-Index
i10 Index
Citation Counts
53
132
9,340
Climate Risk Management
Multisector Dynamics
Robust Decision Making
Climate Solutions
Rankings
Ranking Based On Selection: 13
Charles Ammon
Metrics
H-Index
i10 Index
Citation Counts
51
93
15,955
Rankings
Ranking Based On Selection: 14
Peter J Heaney
Metrics
H-Index
i10 Index
Citation Counts
50
105
9,594
Rankings
Ranking Based On Selection: 15
Rudy Slingerland
Metrics
H-Index
i10 Index
Citation Counts
50
85
9,774
Rankings
Ranking Based On Selection: 16
Kevin P Furlong
Metrics
H-Index
i10 Index
Citation Counts
50
118
8,480
Rankings
Ranking Based On Selection: 17
Li Li|李黎
Metrics
H-Index
i10 Index
Citation Counts
44
89
6,045
reactive transport
catchment hydrology
biogeochemistry
critical zone
water quality
Rankings
Ranking Based On Selection: 18
Mark E Patzkowsky
Metrics
H-Index
i10 Index
Citation Counts
39
59
5,853
paleoecology
biodiversity
extinction
stratigraphic paleobiology
Rankings
Ranking Based On Selection: 19
Nathaniel R Warner
Metrics
H-Index
i10 Index
Citation Counts
35
54
10,140
isotopes
geochemistry
energy
environment
salinity
Rankings
Ranking Based On Selection: 20
Duane Diefenbach
Metrics
H-Index
i10 Index
Citation Counts
35
73
4,864
Rankings
Ranking Based On Selection: 21
Peter Lafemina
Metrics
H-Index
i10 Index
Citation Counts
33
63
4,184
Rankings
Ranking Based On Selection: 22
Tieyuan Zhu
Metrics
H-Index
i10 Index
Citation Counts
30
53
3,260
Geophysics
seismology
seismic attenuation
wave propagation
Rankings
Ranking Based On Selection: 23
Roman Dibiase
Metrics
H-Index
i10 Index
Citation Counts
27
30
3,265
Rankings
Ranking Based On Selection: 24
John Noel Hooker
Metrics
H-Index
i10 Index
Citation Counts
24
34
2,040
Structural diagenesis
Geologic fractures
Structural geology
Earthquake modeling
Rankings
Ranking Based On Selection: 25
Elizabeth Hajek
Metrics
H-Index
i10 Index
Citation Counts
23
30
2,153
Rankings
Ranking Based On Selection: 26
Donald Voigt
Metrics
H-Index
i10 Index
Citation Counts
22
29
2,310
Rankings
Ranking Based On Selection: 27
Sarah Ivory
Metrics
H-Index
i10 Index
Citation Counts
21
28
2,220
Rankings
Ranking Based On Selection: 28
Wei Zhi Ç›´ ļŸ
Metrics
H-Index
i10 Index
Citation Counts
20
26
2,136
Watershed Hydro-biogeochemistry
Big Data and Deep Learning
Reactive
Rankings
Ranking Based On Selection: 29
Andrew Smye
Metrics
H-Index
i10 Index
Citation Counts
20
30
1,403
Rankings
Ranking Based On Selection: 30
Christelle Wauthier
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,365
Volcanology
Natural hazards
InSAR
Remote-sensing
Rifting
Rankings
Ranking Based On Selection: 31
Kimberly V Lau
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,607
geobiology
paleoceanography
isotope geochemistry
Rankings
Ranking Based On Selection: 32
Robert Shannon
Metrics
H-Index
i10 Index
Citation Counts
18
25
2,171
Rankings
Ranking Based On Selection: 33
Victor N Balashov
Metrics
H-Index
i10 Index
Citation Counts
18
23
1,233
Rankings
Ranking Based On Selection: 34
Rick Day
Metrics
H-Index
i10 Index
Citation Counts
18
21
1,419
Geospatial technology
agriculture
soil science
Rankings
Ranking Based On Selection: 35
Jesse R Reimink
Metrics
H-Index
i10 Index
Citation Counts
14
17
1,007
Early Earth
Igneous Petrology
Isotope Geochemistry
Rankings
Ranking Based On Selection: 36
Maureen Feineman
Metrics
H-Index
i10 Index
Citation Counts
14
16
494
Rankings
Ranking Based On Selection: 37
Jennifer Z Williams
Metrics
H-Index
i10 Index
Citation Counts
13
16
784
geology
chemical weathering
critical zone processes
Rankings
Ranking Based On Selection: 38
Laura Guertin
Metrics
H-Index
i10 Index
Citation Counts
13
21
718
Geoscience Education
Undergraduate Research
Educational Technology
Marine Geology
Rankings
Ranking Based On Selection: 39
Eugene C Morgan
Metrics
H-Index
i10 Index
Citation Counts
11
13
864
geologic carbon storage
reservoir characterization
rock physics
geophysics
wind energy
Rankings
Ranking Based On Selection: 40
Brandon Schwartz
Metrics
H-Index
i10 Index
Citation Counts
8
6
164
Carbon Sequestration
Hydrogen Economy
Energy Transition
Rankings
Ranking Based On Selection: 41
Bryan Kaproth Gerecht
Metrics
H-Index
i10 Index
Citation Counts
8
8
720
Rankings
Ranking Based On Selection: 42
Zena Cardman
Metrics
H-Index
i10 Index
Citation Counts
7
7
600
Rankings
Ranking Based On Selection: 43
Kayalvizhi Sadayappan
Metrics
H-Index
i10 Index
Citation Counts
7
5
158
water quality
biogeochemistry
watershed hydrology
deep learning
critical zone science
Rankings
Ranking Based On Selection: 44
Bryn Stewart
Metrics
H-Index
i10 Index
Citation Counts
7
4
163
catchment hydrology
biogeochemistry
critical zone science
reactive transport modeling
Rankings
Ranking Based On Selection: 45
Sinéad Lyster
Metrics
H-Index
i10 Index
Citation Counts
6
3
79
Rankings
Ranking Based On Selection: 46
Georgia G Soares
Metrics
H-Index
i10 Index
Citation Counts
5
5
88
Astrobiology
Early Life
Fossils
Geobiology
Geochemistry
Rankings
Ranking Based On Selection: 47
Devon Kerins
Metrics
H-Index
i10 Index
Citation Counts
5
3
111
biogeochemistry
reactive transport
catchment hydrology
water quality
Rankings
Ranking Based On Selection: 48
Gourab Kumer Saha
Metrics
H-Index
i10 Index
Citation Counts
5
2
69
Geospatial Modeling
AI Applications in Hydrology
Geospatial Data Science
GIS and Remote Sensing
Water Resources Engineering
Rankings
Ranking Based On Selection: 49
Xuanqing Lou
Metrics
H-Index
i10 Index
Citation Counts
5
2
97
Petroleum and Natural Gas Engineering
Petrophysics
Geology
Geophysics
Core Analysis
Rankings
Ranking Based On Selection: 50
Regina B Bledsoe,
Metrics
H-Index
i10 Index
Citation Counts
4
4
103
plant-microbe interactions
biogeochemistry
wetlands
Rankings
Ranking Based On Selection: 51
Ian Rj Lee
Metrics
H-Index
i10 Index
Citation Counts
4
3
86
cryoseismology
borehole geophysics
remote sensing
glaciology
geophysics
Rankings
Ranking Based On Selection: 52
Erica V Barlow
Metrics
H-Index
i10 Index
Citation Counts
4
3
82
Geobiology
Astrobiology
Early Life
Microbialites
Microfossils
Rankings
Ranking Based On Selection: 53
Xiong Lei
Metrics
H-Index
i10 Index
Citation Counts
4
2
41
geophysics
exploration seismology
rock physics
seismic attenuation
Rankings
Ranking Based On Selection: 54
Elif Cihan Yildirim
Metrics
H-Index
i10 Index
Citation Counts
4
1
29
Rankings
Ranking Based On Selection: 55
Sampath Rathnayaka
Metrics
H-Index
i10 Index
Citation Counts
3
2
79
Rankings
Ranking Based On Selection: 56
Ramin Samieifard
Metrics
H-Index
i10 Index
Citation Counts
3
2
62
Geopedology
Geomorphology
Soil Survey
Agricultural Soil Remote Sensing
Soil Heavy Metals pollution
Rankings
Ranking Based On Selection: 57
Samuel Shaheen|Samuel W. Shaheen
Metrics
H-Index
i10 Index
Citation Counts
3
2
51
aqueous geochemistry
environmental data sciences
critical zone
Rankings
Ranking Based On Selection: 58
Sierra M Melton
Metrics
H-Index
i10 Index
Citation Counts
3
2
34
Cryosphere
Glaciology
Geophysics
Remote Sensing
Rankings
Ranking Based On Selection: 59
Zi Xian Leong
Metrics
H-Index
i10 Index
Citation Counts
3
1
70
Rankings
Ranking Based On Selection: 60
Aristle Monteiro
Metrics
H-Index
i10 Index
Citation Counts
3
1
22
Rankings
Ranking Based On Selection: 61
Chloe Stanton
Metrics
H-Index
i10 Index
Citation Counts
2
2
64
Rankings
Ranking Based On Selection: 62
Tarun Luthra
Metrics
H-Index
i10 Index
Citation Counts
2
1
40
Machine learning
Geophysics
Glaciology
Reflection Seismology
Rankings
Ranking Based On Selection: 63
Judit Gonzalez-Santana
Metrics
H-Index
i10 Index
Citation Counts
2
1
28
Geodesy
Volcanology
Satellite remote sensing
Big data
Natural hazards
Rankings
Ranking Based On Selection: 64
Shelby Bowden
Metrics
H-Index
i10 Index
Citation Counts
2
1
27
mass spectrometry
isotope geochemistry
igneous petrology
Rankings
Ranking Based On Selection: 65
Tsai-Wei Chen
Metrics
H-Index
i10 Index
Citation Counts
2
1
17
Rankings
Ranking Based On Selection: 66
Jiayi Yu
Metrics
H-Index
i10 Index
Citation Counts
2
0
16
Rankings
Ranking Based On Selection: 67
Yusuke Kubota
Metrics
H-Index
i10 Index
Citation Counts
2
0
9
Rankings
Ranking Based On Selection: 68
Jacob H Cipar
Metrics
H-Index
i10 Index
Citation Counts
1
1
46
Rankings
Ranking Based On Selection: 69
Juliana K Drozd
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
organic geochemistry
isotope geochemistry
astrobiology
geobiology
Rankings
Ranking Based On Selection: 70
Abigail S Knapp|Abigail Lynn Saenger
Metrics
H-Index
i10 Index
Citation Counts
1
0
5
Hydrogeology
Reactive Transport Modeling
Satellite Remote Sensing
Rankings
Ranking Based On Selection: 71
Leonie Strobl
Metrics
H-Index
i10 Index
Citation Counts
1
0
2
geology
subduction zone metamorphism
dehydration
Rankings
Ranking Based On Selection: 72
Rory Changleng
Metrics
H-Index
i10 Index
Citation Counts
1
0
1