Total 2,424,675 scientists, country 221, and institutions 24,468 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
![Dragan Savic](https://cdn.adscientificindex.com/pictures/55/1251197.jpg)
Hydroinformatics
Water resources systems
Water engineering
Floods
Water resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
361
227
0.629
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Bruce Jefferson](https://cdn.adscientificindex.com/pictures/1e/4331148.jpg)
water engineering
algae
water treatment
wastewater treatment
coagulation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
236
185
0.784
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Tom Stephenson](https://cdn.adscientificindex.com/pictures/c4/4331151.jpg)
Wastewater engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
77
0.510
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Michael ST John Warne](https://cdn.adscientificindex.com/pictures/3a/4975229.jpg)
Ecotoxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
138
71
0.514
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Michel Pimbert](https://cdn.adscientificindex.com/pictures/2e/914861.jpg)
Food sovereignty
agroecology
environment
participatory democracy
transdisciplinary research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
53
0.525
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Katharina Dehnen Schmutz](https://cdn.adscientificindex.com/pictures/2b/914863.jpg)
biological invasions
weed ecology and climate change
interdisciplinary ecological-economic research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
63
0.851
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Alex Franklin](/user/assets/images/profile/no-profile-photo.png)
Sustainability
shared practice
care
nature/society
human/animal
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
32
0.800
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Deepa Joshi](https://cdn.adscientificindex.com/pictures/d4/914856.jpg)
Water governance
feminist political ecology and water conflicts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
25
0.641
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Francis Hassard](https://cdn.adscientificindex.com/pictures/19/4331319.jpg)
Public Health
Bioremediation
Flow Cytometry
Drinking Water
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
30
0.968
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Martin Wilkes](/user/assets/images/profile/no-profile-photo.png)
Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
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!
* Total i10 IndexRankings
Ranking Based On Selection: 11
![priscilla claeys](https://cdn.adscientificindex.com/pictures/03/914857.jpg)
rights of peasants
food sovereignty
right to food
human rights
gender
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
27
0.900
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Bastien Dieppois](/user/assets/images/profile/no-profile-photo.png)
Decadal hydro-climatic variability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
27
0.931
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Geoffrey N. Elliott](https://cdn.adscientificindex.com/pictures/27/4442372.jpg)
Pathogen detection
Rhizobial community analysis
Soil and water molecular microbiology
Burkholderia
Paratuberculosis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Jonathan Eden](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Colin Anderson](https://cdn.adscientificindex.com/pictures/b0/914860.jpg)
Environmental Studies
Agro-Food Studies
Participatory Research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Chiara Tornaghi](https://cdn.adscientificindex.com/pictures/11/914867.jpg)
Urban agriculture
food sovereignty
socio-environmental justice
urban political agroecology
agroecological urbanism
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Geraldine Brown](https://cdn.adscientificindex.com/pictures/9c/914855.jpg)
'community engagement and activism'
'inequality'
'well-being' 'rehabilitation' 'teenage pregnancy'
'urban gun crime' 'race'
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
4
0.222
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Jana Fried](/user/assets/images/profile/no-profile-photo.png)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
11
0.688
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Rebecca Sharpe](https://cdn.adscientificindex.com/pictures/87/1366842.jpg)
Water Engineering
Geography
GIS
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Abbos Khamidov](https://cdn.adscientificindex.com/pictures/48/5211143.jpg)
Environment
water and agriculture
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Dragan Savic
University of Exeter
Exeter, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
361
227
0.629
Hydroinformatics
Water resources systems
Water engineering
Floods
Water resources
Bruce Jefferson
Cranfield University
Cranfield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
236
185
0.784
water engineering
algae
water treatment
wastewater treatment
coagulation
Tom Stephenson
Cranfield University
Cranfield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
77
0.510
Michael ST John Warne
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
138
71
0.514
Michel Pimbert
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
101
53
0.525
Food sovereignty
agroecology
environment
participatory democracy
transdisciplinary research
Katharina Dehnen Schmutz
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
74
63
0.851
biological invasions
weed ecology and climate change
interdisciplinary ecological-economic research
Alex Franklin
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
32
0.800
Sustainability
shared practice
care
nature/society
human/animal
Deepa Joshi
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
39
25
0.641
Water governance
feminist political ecology and water conflicts
Francis Hassard
Cranfield University
Cranfield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
30
0.968
Public Health
Bioremediation
Flow Cytometry
Drinking Water
Martin Wilkes
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
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!
priscilla claeys
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
27
0.900
rights of peasants
food sovereignty
right to food
human rights
gender
Bastien Dieppois
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
29
27
0.931
Decadal hydro-climatic variability
Geoffrey N. Elliott
James Hutton Institute
Dundee, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
19
0.792
Pathogen detection
Rhizobial community analysis
Soil and water molecular microbiology
Burkholderia
Paratuberculosis
Jonathan Eden
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
22
21
0.955
Colin Anderson
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
20
0.952
Environmental Studies
Agro-Food Studies
Participatory Research
Chiara Tornaghi
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
18
0.857
Urban agriculture
food sovereignty
socio-environmental justice
urban political agroecology
agroecological urbanism
Geraldine Brown
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
4
0.222
'community engagement and activism'
'inequality'
'well-being' 'rehabilitation' 'teenage pregnancy'
'urban gun crime' 'race'
Jana Fried
Coventry University
Coventry, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
16
11
0.688
Rebecca Sharpe
Sheffield Hallam University
Sheffield, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
Water Engineering
Geography
GIS
Abbos Khamidov
University of Surrey
Guildford, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Environment
water and agriculture