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
Jonathan Abbatt
Atmospheric chemistry
multiphase chemistry
indoor air chemistry
climate
Metrics
H-Index
i10 Index
Citation
97
313
28,236
* Rankings
Ranking Based On Selection: 2
Debra Wunch
atmospheric science
carbon cycle
Fourier transform spectrometry
Metrics
H-Index
i10 Index
Citation
62
139
18,347
* Rankings
Ranking Based On Selection: 3
Mathew Brown
biometeorology
carbon cycle
eddy covariance
web development
Metrics
H-Index
i10 Index
Citation
60
243
16,930
* Rankings
Ranking Based On Selection: 4
Jane Liu
Atmospheric environment
Remote sensing
Ecosystem modeling
Metrics
H-Index
i10 Index
Citation
53
122
10,513
* Rankings
Ranking Based On Selection: 5
Arthur Chan
atmospheric chemistry
air quality
air pollution
mass spectrometry
Metrics
H-Index
i10 Index
Citation
40
64
8,970
* Rankings
Ranking Based On Selection: 7
Rachel Ying Wen Chang
Atmospheric chemistry
Cloud Microphysics
Greenhouse gases
Metrics
H-Index
i10 Index
Citation
34
54
4,044
* Rankings
Ranking Based On Selection: 8
Joel C Corbin
aerosol metrology
combustion emissions
particle filtration
aerosol optics
aerosol mass spectrometry
Metrics
H-Index
i10 Index
Citation
32
58
3,086
Iain D Stewart
Urban climatology
heat island
urban metabolism
urban sustainability
Metrics
H-Index
i10 Index
Citation
30
40
9,762
Igor Lehnherr
Biogeochemistry
Contaminants
Climate Change
Environmental Sciences
Limnology
Metrics
H-Index
i10 Index
Citation
30
38
3,144

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Rankings
Ranking Based On Selection: 1
Jonathan Abbatt
Metrics
H-Index
i10 Index
Citation Counts
97
313
28,236
Atmospheric chemistry
multiphase chemistry
indoor air chemistry
climate
Rankings
Ranking Based On Selection: 2
Debra Wunch
Metrics
H-Index
i10 Index
Citation Counts
62
139
18,347
atmospheric science
carbon cycle
Fourier transform spectrometry
Rankings
Ranking Based On Selection: 3
Mathew Brown
Metrics
H-Index
i10 Index
Citation Counts
60
243
16,930
Rankings
Ranking Based On Selection: 4
Jane Liu
Metrics
H-Index
i10 Index
Citation Counts
53
122
10,513
Rankings
Ranking Based On Selection: 5
Arthur Chan
Metrics
H-Index
i10 Index
Citation Counts
40
64
8,970
atmospheric chemistry
air quality
air pollution
mass spectrometry
Rankings
Ranking Based On Selection: 6
Maria Dittrich
Metrics
H-Index
i10 Index
Citation Counts
38
63
4,618
Rankings
Ranking Based On Selection: 7
Rachel Ying Wen Chang
Metrics
H-Index
i10 Index
Citation Counts
34
54
4,044
Rankings
Ranking Based On Selection: 8
Joel C Corbin
Metrics
H-Index
i10 Index
Citation Counts
32
58
3,086
aerosol metrology
combustion emissions
particle filtration
aerosol optics
aerosol mass spectrometry
Rankings
Ranking Based On Selection: 9
Iain D Stewart
Metrics
H-Index
i10 Index
Citation Counts
30
40
9,762
Urban climatology
heat island
urban metabolism
urban sustainability
Rankings
Ranking Based On Selection: 10
Igor Lehnherr
Metrics
H-Index
i10 Index
Citation Counts
30
38
3,144
Biogeochemistry
Contaminants
Climate Change
Environmental Sciences
Limnology

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
Karen L Smith
Metrics
H-Index
i10 Index
Citation Counts
21
27
2,238
Rankings
Ranking Based On Selection: 12
Amy Hrdina
Metrics
H-Index
i10 Index
Citation Counts
13
15
890
Rankings
Ranking Based On Selection: 13
Shelby Riskin
Metrics
H-Index
i10 Index
Citation Counts
9
9
497