Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
Chemical oceanography
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
63
0.618
* Total i10 IndexRankings
Ranking Based On Selection :2
Atmospheric Chemistry
Environmental Chemistry
Air Pollution
Climate Change
Arctic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
55
0.640
* Total i10 IndexRankings
Ranking Based On Selection :3
Atmospheric Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
69
0.986
* Total i10 IndexRankings
Ranking Based On Selection :4
chemistry
geology
physics
materials science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
44
0.698
* Total i10 IndexRankings
Ranking Based On Selection :5
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
14
0.350
* Total i10 IndexRankings
Ranking Based On Selection :6
Nonlinear Chemical Dynamics
Chemical Self-creation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
11
0.379
* Total i10 IndexRankings
Ranking Based On Selection :7
Environmental and analytical chemistry
environmental security
Arctic and Earth system science
environment and health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
14
0.609
* Total i10 IndexRankings
Ranking Based On Selection :8
environmental chemistry
food webs
stable isotopes
contaminants
lakes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Total i10 IndexRankings
Ranking Based On Selection :9
Chemistry
Biochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
2
0.125
* Total i10 IndexRankings
Ranking Based On Selection :10
Atmospheric chemistry
aerosol
climate
ecosystem
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
* Total i10 IndexRankings
Ranking Based On Selection :11
Chemistry
Toxicology
Environmental Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
S Bradley Moran
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
102
63
0.618
William R Simpson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
55
0.640
Atmospheric Chemistry
Environmental Chemistry
Air Pollution
Climate Change
Arctic
Jingqiu Mao
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
69
0.986
Thomas P Trainor
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
63
44
0.698
chemistry
geology
physics
materials science
Michael Stekoll
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
14
0.350
Jerzy Maselko
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
11
0.379
Nonlinear Chemical Dynamics
Chemical Self-creation
Clara Deal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
14
0.609
Environmental and analytical chemistry
environmental security
Arctic and Earth system science
environment and health
Benjamin Barst
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
environmental chemistry
food webs
stable isotopes
contaminants
lakes
John W Keller
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
2
0.125
Yiqi Zheng
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
Atmospheric chemistry
aerosol
climate
ecosystem
John Harley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
8
7
0.875
Chemistry
Toxicology
Environmental Science