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" (870,057 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
David Tissue
climate change
photosynthesis
respiration
elevated CO2
Metrics
H-Index
i10 Index
Citation
87
260
27,883
* Rankings
Ranking Based On Selection: 2
Benjamin Smith
climate change
carbon cycle
vegetation dynamics
biosphere-atmosphere feedbacks
modelling
Metrics
H-Index
i10 Index
Citation
78
158
35,342
* Rankings
Ranking Based On Selection: 3
Ataur Rahman
Water
climate change
flood
rainwater harvesting
sustainability
Metrics
H-Index
i10 Index
Citation
50
163
10,066
* Rankings
Ranking Based On Selection: 6
Rosemary Jill Leonard
Third Sector Research
Social capital
community well-being
environmental sustianability
Metrics
H-Index
i10 Index
Citation
36
71
4,313
* Rankings
Ranking Based On Selection: 7
Basant Maheshwari
Irrigation
Peri-urban water
Environmental Management
Sustainability
Groundwater management
Metrics
H-Index
i10 Index
Citation
33
89
4,649
Gay Hawkins
Environmental Humanities
STS
materials
political theory
waste and water
Metrics
H-Index
i10 Index
Citation
28
47
4,064
* Rankings
Ranking Based On Selection: 10
Ian A Wright
Water science and management
freshwater ecology
water pollution
urban water
Metrics
H-Index
i10 Index
Citation
23
42
1,914

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* Rankings
Ranking Based On Selection: 14
Md Mahmudul Haque
Rainfall-runoff modelling
Water demand forecasting
climate change
flood frequency analysis
rainwater harvesting
Metrics
H-Index
i10 Index
Citation
17
19
947
* Rankings
Ranking Based On Selection: 15
Uthpala Pinto
Water quality
River health
Indicators
Water sustainability
Environmental monitoring and reporting
Metrics
H-Index
i10 Index
Citation
14
15
750
Rankings
Ranking Based On Selection: 1
David Tissue
Metrics
H-Index
i10 Index
Citation Counts
87
260
27,883
Rankings
Ranking Based On Selection: 2
Benjamin Smith
Metrics
H-Index
i10 Index
Citation Counts
78
158
35,342
climate change
carbon cycle
vegetation dynamics
biosphere-atmosphere feedbacks
modelling
Rankings
Ranking Based On Selection: 3
Ataur Rahman
Metrics
H-Index
i10 Index
Citation Counts
50
163
10,066
Water
climate change
flood
rainwater harvesting
sustainability
Rankings
Ranking Based On Selection: 4
Scott Johnson
Metrics
H-Index
i10 Index
Citation Counts
50
145
7,895
Rankings
Ranking Based On Selection: 5
Sebastian Pfautsch
Metrics
H-Index
i10 Index
Citation Counts
39
56
5,712
Rankings
Ranking Based On Selection: 6
Rosemary Jill Leonard
Metrics
H-Index
i10 Index
Citation Counts
36
71
4,313
Third Sector Research
Social capital
community well-being
environmental sustianability
Rankings
Ranking Based On Selection: 7
Basant Maheshwari
Metrics
H-Index
i10 Index
Citation Counts
33
89
4,649
Irrigation
Peri-urban water
Environmental Management
Sustainability
Groundwater management
Rankings
Ranking Based On Selection: 8
Gay Hawkins
Metrics
H-Index
i10 Index
Citation Counts
28
47
4,064
Environmental Humanities
STS
materials
political theory
waste and water
Rankings
Ranking Based On Selection: 9
Fiona Cameron
Metrics
H-Index
i10 Index
Citation Counts
28
41
3,268
Rankings
Ranking Based On Selection: 10
Ian A Wright
Metrics
H-Index
i10 Index
Citation Counts
23
42
1,914
Water science and management
freshwater ecology
water pollution
urban water

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Rankings
Ranking Based On Selection: 11
Dharmappa Hagare
Metrics
H-Index
i10 Index
Citation Counts
23
38
1,435
Rankings
Ranking Based On Selection: 12
Yi Chen Lan
Metrics
H-Index
i10 Index
Citation Counts
20
28
2,551
Rankings
Ranking Based On Selection: 13
George Kastl
Metrics
H-Index
i10 Index
Citation Counts
19
30
1,308
Rankings
Ranking Based On Selection: 14
Md Mahmudul Haque
Metrics
H-Index
i10 Index
Citation Counts
17
19
947
Rainfall-runoff modelling
Water demand forecasting
climate change
flood frequency analysis
rainwater harvesting
Rankings
Ranking Based On Selection: 15
Uthpala Pinto
Metrics
H-Index
i10 Index
Citation Counts
14
15
750
Water quality
River health
Indicators
Water sustainability
Environmental monitoring and reporting
Rankings
Ranking Based On Selection: 16
Ayesha Rafique
Metrics
H-Index
i10 Index
Citation Counts
3
0
23