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
Jie Han
Geotechnical Engineering
Geosynthetics
Ground Improvement
Pile Foundations
Pavement Engineering
Metrics
H-Index
i10 Index
Citation
68
289
18,033
* Rankings
Ranking Based On Selection :2
Stephen Hasiotis
Paleontology
Ichnology
Sedimentology/Stratigraphy
Sequence Stratigraphy
Paleopedology/Pedology
Metrics
H-Index
i10 Index
Citation
50
159
8,863
James J Butler Jr
groundwater hydrology - well hydraulics - stream-aquifer interactions - subsurface characterization - aquifer sustainability
Metrics
H-Index
i10 Index
Citation
49
101
7,513
Luis Gonzalez
Carbonate Geology and Diagenesis
Paleoclimatology
Stable Isotope Geochemistry
Geology
Speleothems
Metrics
H-Index
i10 Index
Citation
45
77
6,832
Sophocleous Marios
Hydrogeology
Hydrology
Water Resources Sustainability
Metrics
H-Index
i10 Index
Citation
42
74
10,653
Sharon Billings
biogeochemistry
soil organic matter
microbial ecology
stable isotope ecology
Metrics
H-Index
i10 Index
Citation
41
80
5,500
Mike Blum
sedimentary geology
sedimentology
Quaternary geology and geomorphology
Metrics
H-Index
i10 Index
Citation
41
78
11,009
Robert L Parsons
geotechnical engineering
retaining walls
drilled shafts
reinforcement
railroad ballast
Metrics
H-Index
i10 Index
Citation
39
101
5,284
* Rankings
Ranking Based On Selection :10
Gregory Ludvigson
Geology
stratigraphy
paleoclimatology
stable isotope geochemistry
Metrics
H-Index
i10 Index
Citation
39
103
4,767
* Rankings
Ranking Based On Selection :11
Robert H Goldstein
Petroleum Geology
Diagenesis
Stratigraphy
Carbonates
Fluid Inclusions
Metrics
H-Index
i10 Index
Citation
39
77
8,063
* Rankings
Ranking Based On Selection :12
Leigh A Stearns
Glaciology
Machine Learning
Remote Sensing
Climate
Metrics
H-Index
i10 Index
Citation
36
57
4,835
* Rankings
Ranking Based On Selection :13
Samuel C Zipper|Samuel C Zipper
Ecohydrology
hydrogeology
human-environment interactions
Metrics
H-Index
i10 Index
Citation
35
60
3,696
* Rankings
Ranking Based On Selection :14
David A Fowle
Biogeochemistry
Limnology
Environmental Chemistry
Geobiology
Geochemistry
Metrics
H-Index
i10 Index
Citation
35
50
4,901
* Rankings
Ranking Based On Selection :15
Andreas Moeller
Geology
Geochronology
Petrology
Metamorphic petrology
LA-ICP-MS
Metrics
H-Index
i10 Index
Citation
31
53
4,117
* Rankings
Ranking Based On Selection :16
Eugene C Rankey
Marine geology
Coastal processes
Sedimentology
Geophysics
Metrics
H-Index
i10 Index
Citation
31
52
2,559
* Rankings
Ranking Based On Selection :17
Michael Taylor
Geology-nerd hiker-guy
Himalaya
Tibet
neotectonics
Metrics
H-Index
i10 Index
Citation
30
43
4,796
* Rankings
Ranking Based On Selection :18
Craig P Marshall
Raman spectroscopy
mineralogy
hematite
carbonates of calcite structure
and graphite
Metrics
H-Index
i10 Index
Citation
29
49
4,182
* Rankings
Ranking Based On Selection :19
Gwendolyn L Macpherson
hydrogeology
aqueous geochemistry
water-rock interaction
global C cycle
water resources in water-scarce regions - lithium isotopes
Metrics
H-Index
i10 Index
Citation
29
49
2,781
* Rankings
Ranking Based On Selection :21
Donald O Whittemore
Water quality and hydrogeology of regional aquifers
geochemical identification of saltwater sources
Metrics
H-Index
i10 Index
Citation
27
49
3,971
* Rankings
Ranking Based On Selection :22
Rolfe Mandel
Geomorphology
soils
geoarchaeology
Quaternary science
Metrics
H-Index
i10 Index
Citation
27
59
2,527
* Rankings
Ranking Based On Selection :23
Evan Franseen
Carbonate Sedimentology
Sequence Stratigraphy
Diagenesis
Metrics
H-Index
i10 Index
Citation
26
51
2,021
* Rankings
Ranking Based On Selection :25
Tina Niemi
Paleoseismology
Archaeoseismology
Geoarchaeology
Sedimentology
Metrics
H-Index
i10 Index
Citation
24
39
1,617
* Rankings
Ranking Based On Selection :27
Jimmy Adegoke
Climate Variability
Regional Climate Modelling
Environmental Impacts
Metrics
H-Index
i10 Index
Citation
22
26
3,492
Luke Strotz
Palaeoecology
Macroevolution
Palaeontology
Palaeobiology
Metrics
H-Index
i10 Index
Citation
18
26
1,495
Andres Lepage
Earthquake Engineering
High-Performance Structures
Metrics
H-Index
i10 Index
Citation
18
23
997
Franciszek Franek Hasiuk
Hydrogen
Critical Minerals
CCUS
Carbonates
Aggregates
Metrics
H-Index
i10 Index
Citation
17
21
1,453
Jon J Smith
Sedimentology
Stratigraphy
Paleontology
Ichnology
Chronostratigraphy
Metrics
H-Index
i10 Index
Citation
15
21
1,054
Noel M Bartlow|Noel M. Bartlow
Geophysics
Crustal Deformation
Slow Slip Events
Subduction Zones
Metrics
H-Index
i10 Index
Citation
14
14
953
Edward C Reboulet
Ground Water Hydrology
Subsurface Characterization
Stream-Aquifer Interactions
Metrics
H-Index
i10 Index
Citation
12
15
967
Erin Seybold
Aquatic biogeochemistry
watershed hydrology
ecosystem ecology
Metrics
H-Index
i10 Index
Citation
10
10
660
Soroush Rezvanbehbahani
Glaciology
Geostatistics
Numerical Modeling
Ice Sheet-Ocean interactions
Machine Learning
Metrics
H-Index
i10 Index
Citation
7
6
379
Topher Hughes
remote sensing
planetary geology
undergraduate education
portfolio analysis
alternative investments
Metrics
H-Index
i10 Index
Citation
7
7
472
Alexander Daehne
Geomorphology
Neotectonics
Remote Sensing
Mass Movements
Natural Hazards
Metrics
H-Index
i10 Index
Citation
5
4
340
Rankings
Ranking Based On Selection: 1
Jie Han
Metrics
H-Index
i10 Index
Citation Counts
68
289
18,033
Geotechnical Engineering
Geosynthetics
Ground Improvement
Pile Foundations
Pavement Engineering
Rankings
Ranking Based On Selection: 2
Stephen Hasiotis
Metrics
H-Index
i10 Index
Citation Counts
50
159
8,863
Paleontology
Ichnology
Sedimentology/Stratigraphy
Sequence Stratigraphy
Paleopedology/Pedology
Rankings
Ranking Based On Selection: 3
James J Butler Jr
Metrics
H-Index
i10 Index
Citation Counts
49
101
7,513
groundwater hydrology - well hydraulics - stream-aquifer interactions - subsurface characterization - aquifer sustainability
Rankings
Ranking Based On Selection: 4
Luis Gonzalez
Metrics
H-Index
i10 Index
Citation Counts
45
77
6,832
Carbonate Geology and Diagenesis
Paleoclimatology
Stable Isotope Geochemistry
Geology
Speleothems
Rankings
Ranking Based On Selection: 5
Sophocleous Marios
Metrics
H-Index
i10 Index
Citation Counts
42
74
10,653
Hydrogeology
Hydrology
Water Resources Sustainability
Rankings
Ranking Based On Selection: 6
Sharon Billings
Metrics
H-Index
i10 Index
Citation Counts
41
80
5,500
biogeochemistry
soil organic matter
microbial ecology
stable isotope ecology
Rankings
Ranking Based On Selection: 7
Mike Blum
Metrics
H-Index
i10 Index
Citation Counts
41
78
11,009
sedimentary geology
sedimentology
Quaternary geology and geomorphology
Rankings
Ranking Based On Selection: 8
Raymond M Coveney, Jr
Metrics
H-Index
i10 Index
Citation Counts
40
63
4,650
Rankings
Ranking Based On Selection: 9
Robert L Parsons
Metrics
H-Index
i10 Index
Citation Counts
39
101
5,284
geotechnical engineering
retaining walls
drilled shafts
reinforcement
railroad ballast
Rankings
Ranking Based On Selection: 10
Gregory Ludvigson
Metrics
H-Index
i10 Index
Citation Counts
39
103
4,767
Geology
stratigraphy
paleoclimatology
stable isotope geochemistry
Rankings
Ranking Based On Selection: 11
Robert H Goldstein
Metrics
H-Index
i10 Index
Citation Counts
39
77
8,063
Petroleum Geology
Diagenesis
Stratigraphy
Carbonates
Fluid Inclusions
Rankings
Ranking Based On Selection: 12
Leigh A Stearns
Metrics
H-Index
i10 Index
Citation Counts
36
57
4,835
Glaciology
Machine Learning
Remote Sensing
Climate
Rankings
Ranking Based On Selection: 13
Samuel C Zipper|Samuel C Zipper
Metrics
H-Index
i10 Index
Citation Counts
35
60
3,696
Ecohydrology
hydrogeology
human-environment interactions
Rankings
Ranking Based On Selection: 14
David A Fowle
Metrics
H-Index
i10 Index
Citation Counts
35
50
4,901
Biogeochemistry
Limnology
Environmental Chemistry
Geobiology
Geochemistry
Rankings
Ranking Based On Selection: 15
Andreas Moeller
Metrics
H-Index
i10 Index
Citation Counts
31
53
4,117
Geology
Geochronology
Petrology
Metamorphic petrology
LA-ICP-MS
Rankings
Ranking Based On Selection: 16
Eugene C Rankey
Metrics
H-Index
i10 Index
Citation Counts
31
52
2,559
Marine geology
Coastal processes
Sedimentology
Geophysics
Rankings
Ranking Based On Selection: 17
Michael Taylor
Metrics
H-Index
i10 Index
Citation Counts
30
43
4,796
Geology-nerd hiker-guy
Himalaya
Tibet
neotectonics
Rankings
Ranking Based On Selection: 18
Craig P Marshall
Metrics
H-Index
i10 Index
Citation Counts
29
49
4,182
Raman spectroscopy
mineralogy
hematite
carbonates of calcite structure
and graphite
Rankings
Ranking Based On Selection: 19
Gwendolyn L Macpherson
Metrics
H-Index
i10 Index
Citation Counts
29
49
2,781
hydrogeology
aqueous geochemistry
water-rock interaction
global C cycle
water resources in water-scarce regions - lithium isotopes
Rankings
Ranking Based On Selection: 20
Jennifer A Roberts
Metrics
H-Index
i10 Index
Citation Counts
27
34
3,933
Rankings
Ranking Based On Selection: 21
Donald O Whittemore
Metrics
H-Index
i10 Index
Citation Counts
27
49
3,971
Water quality and hydrogeology of regional aquifers
geochemical identification of saltwater sources
Rankings
Ranking Based On Selection: 22
Rolfe Mandel
Metrics
H-Index
i10 Index
Citation Counts
27
59
2,527
Geomorphology
soils
geoarchaeology
Quaternary science
Rankings
Ranking Based On Selection: 23
Evan Franseen
Metrics
H-Index
i10 Index
Citation Counts
26
51
2,021
Carbonate Sedimentology
Sequence Stratigraphy
Diagenesis
Rankings
Ranking Based On Selection: 24
Noah M Mclean
Metrics
H-Index
i10 Index
Citation Counts
25
28
5,060
Rankings
Ranking Based On Selection: 25
Tina Niemi
Metrics
H-Index
i10 Index
Citation Counts
24
39
1,617
Paleoseismology
Archaeoseismology
Geoarchaeology
Sedimentology
Rankings
Ranking Based On Selection: 26
George Tsoflias
Metrics
H-Index
i10 Index
Citation Counts
22
37
1,696
Rankings
Ranking Based On Selection: 27
Jimmy Adegoke
Metrics
H-Index
i10 Index
Citation Counts
22
26
3,492
Climate Variability
Regional Climate Modelling
Environmental Impacts
Rankings
Ranking Based On Selection: 28
Terrance Loecke
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,679
Rankings
Ranking Based On Selection: 29
Alison Graettinger
Metrics
H-Index
i10 Index
Citation Counts
19
21
1,243
Rankings
Ranking Based On Selection: 30
Luke Strotz
Metrics
H-Index
i10 Index
Citation Counts
18
26
1,495
Palaeoecology
Macroevolution
Palaeontology
Palaeobiology
Rankings
Ranking Based On Selection: 31
Gaisheng Liu
Metrics
H-Index
i10 Index
Citation Counts
18
26
1,221
Rankings
Ranking Based On Selection: 32
Andres Lepage
Metrics
H-Index
i10 Index
Citation Counts
18
23
997
Earthquake Engineering
High-Performance Structures
Rankings
Ranking Based On Selection: 33
Franciszek Franek Hasiuk
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,453
Hydrogen
Critical Minerals
CCUS
Carbonates
Aggregates
Rankings
Ranking Based On Selection: 34
Marina B Suarez
Metrics
H-Index
i10 Index
Citation Counts
17
23
941
Rankings
Ranking Based On Selection: 35
Alison Olcott Marshall
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,909
Rankings
Ranking Based On Selection: 36
Jon J Smith
Metrics
H-Index
i10 Index
Citation Counts
15
21
1,054
Sedimentology
Stratigraphy
Paleontology
Ichnology
Chronostratigraphy
Rankings
Ranking Based On Selection: 37
Syed Hasan
Metrics
H-Index
i10 Index
Citation Counts
15
18
724
Rankings
Ranking Based On Selection: 38
Noel M Bartlow|Noel M. Bartlow
Metrics
H-Index
i10 Index
Citation Counts
14
14
953
Geophysics
Crustal Deformation
Slow Slip Events
Subduction Zones
Rankings
Ranking Based On Selection: 39
Edward C Reboulet
Metrics
H-Index
i10 Index
Citation Counts
12
15
967
Ground Water Hydrology
Subsurface Characterization
Stream-Aquifer Interactions
Rankings
Ranking Based On Selection: 40
Dave Vieglais
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,642
Rankings
Ranking Based On Selection: 41
Erin Seybold
Metrics
H-Index
i10 Index
Citation Counts
10
10
660
Aquatic biogeochemistry
watershed hydrology
ecosystem ecology
Rankings
Ranking Based On Selection: 42
Marcia Schulmeister
Metrics
H-Index
i10 Index
Citation Counts
10
10
388
Rankings
Ranking Based On Selection: 43
Alan F Halfen
Metrics
H-Index
i10 Index
Citation Counts
9
9
481
Rankings
Ranking Based On Selection: 44
Soroush Rezvanbehbahani
Metrics
H-Index
i10 Index
Citation Counts
7
6
379
Glaciology
Geostatistics
Numerical Modeling
Ice Sheet-Ocean interactions
Machine Learning
Rankings
Ranking Based On Selection: 45
Topher Hughes
Metrics
H-Index
i10 Index
Citation Counts
7
7
472
remote sensing
planetary geology
undergraduate education
portfolio analysis
alternative investments
Rankings
Ranking Based On Selection: 46
Alexander Daehne
Metrics
H-Index
i10 Index
Citation Counts
5
4
340
Geomorphology
Neotectonics
Remote Sensing
Mass Movements
Natural Hazards
Rankings
Ranking Based On Selection: 47
David Weekley
Metrics
H-Index
i10 Index
Citation Counts
3
2
48
Remote Sensing
GIS
Cartography
Water Resources