Total 2,390,219 scientists, country 221, and institutions 24,464 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,
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* Total i10 IndexRankings
Ranking Based On Selection: 1
![Mohammad Mohsin Hafeez](https://cdn.adscientificindex.com/pictures/81/4394695.jpg)
Water Resources Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
284
242
0.852
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Nimantha Perera](/user/assets/images/profile/no-profile-photo.png)
Gas Electron Mulltipliers
Lepton Flavor Violation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
229
228
0.996
* Total i10 IndexRankings
Ranking Based On Selection: 3
![HJ De Silva](https://cdn.adscientificindex.com/pictures/25/547379.jpg)
Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
134
0.604
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Stefan Uhlenbrook](https://cdn.adscientificindex.com/pictures/46/4382647.jpg)
hydrology and water resources
climate change
ecosystems
food systems
sustainability
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
183
117
0.639
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Matthew Mccartney](https://cdn.adscientificindex.com/pictures/f3/4387124.jpg)
water resources management
wetlands
livelihoods
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
143
73
0.510
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Simon Langan](https://cdn.adscientificindex.com/pictures/8e/4382423.jpg)
water quality
soils
river basin management
irrigation
water futures and scenarios
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
68
0.504
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Sisira Siribaddana](https://cdn.adscientificindex.com/pictures/1c/415546.jpg)
Clinical Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
124
84
0.677
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Atula Sd Sandanayaka](https://cdn.adscientificindex.com/pictures/2b/357758.jpg)
Organic laser
Organic Light-Emitting Device
Organic semiconductor
Supramolecular Architecture for Light Energy Conversion
Or
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
59
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 9
![Paul Pavelic](https://cdn.adscientificindex.com/pictures/ff/4388969.jpg)
groundwater management
conjunctive use
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
53
0.530
* Total i10 IndexRankings
Ranking Based On Selection: 10
![Sam Kularatne](https://cdn.adscientificindex.com/pictures/2e/414662.jpg)
Tropical Medicine
Infections
Toxinology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
77
0.794
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* Total i10 IndexRankings
Ranking Based On Selection: 11
![Senaka Rajapakse](https://cdn.adscientificindex.com/pictures/7f/414519.jpg)
acute medicine
critical care
tropical medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
74
0.771
* Total i10 IndexRankings
Ranking Based On Selection: 12
![Athula Sumathipala](https://cdn.adscientificindex.com/pictures/2e/351460.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
53
0.609
* Total i10 IndexRankings
Ranking Based On Selection: 13
![Saroj Jayasinghe](/user/assets/images/profile/no-profile-photo.png)
clinical reasoning
complexity science
health equity
social determinants of health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
* Total i10 IndexRankings
Ranking Based On Selection: 14
![Carukshi Arambepola](https://cdn.adscientificindex.com/pictures/87/509124.jpg)
Non communicable disease epidemiology and prevention
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
53
0.828
* Total i10 IndexRankings
Ranking Based On Selection: 15
![Chandrika Wijeyaratne](/user/assets/images/profile/no-profile-photo.png)
Women's Health
GDM
PCOS
Metabolic syndrome
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
44
0.830
* Total i10 IndexRankings
Ranking Based On Selection: 16
![Shaluka Jayamanne](https://cdn.adscientificindex.com/pictures/bc/428662.jpg)
Toxicology and General Medicine
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
45
0.865
* Total i10 IndexRankings
Ranking Based On Selection: 17
![Manjula Ranagalage Jsps](https://cdn.adscientificindex.com/pictures/b0/521202.jpg)
GIS & Remote Sensing
GIScience
Geospatial Analysis
Urban Geography
Land change science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
* Total i10 IndexRankings
Ranking Based On Selection: 18
![Hasintha Wijesekara](https://cdn.adscientificindex.com/pictures/a4/357761.jpg)
Wastewater characterization and treatments
Nano Zero Valent Iron Synthesis
Carbon Sequestration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
* Total i10 IndexRankings
Ranking Based On Selection: 19
![Simon Parkinson](https://cdn.adscientificindex.com/pictures/9b/4513870.jpg)
climate risk
sustainable development
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
40
0.870
* Total i10 IndexRankings
Ranking Based On Selection: 20
![Achala Jayatilleke](https://cdn.adscientificindex.com/pictures/9a/417625.jpg)
Digital Health
Health Information Systems
NCDs
Injury & Violence Prevention
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
43
0.956
* Total i10 IndexRankings
Ranking Based On Selection: 21
![Thilini Chanchala Agampodi](https://cdn.adscientificindex.com/pictures/49/520306.jpg)
Maternal and Child Health
Social Epidemiology
Qualitative Research
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
39
0.867
* Total i10 IndexRankings
Ranking Based On Selection: 22
![Anjana Silva](https://cdn.adscientificindex.com/pictures/eb/514851.jpg)
Snakebite
Toxinology
Envenomation
Antivenoms
Parasitology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
32
0.711
* Total i10 IndexRankings
Ranking Based On Selection: 23
![Jonathan Lautze](/user/assets/images/profile/no-profile-photo.png)
Water Management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
27
0.614
* Total i10 IndexRankings
Ranking Based On Selection: 24
![Godwin Constantine](https://cdn.adscientificindex.com/pictures/e9/558085.jpg)
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
34
0.791
* Total i10 IndexRankings
Ranking Based On Selection: 25
![Anil Gunaratne](https://cdn.adscientificindex.com/pictures/16/357759.jpg)
Starch Sceince and Technology
Bioactive compounds in grains and legumes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
Mohammad Mohsin Hafeez
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
284
242
0.852
Nimantha Perera
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
229
228
0.996
HJ De Silva
University of Kelaniya
Kelaniya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
222
134
0.604
Stefan Uhlenbrook
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
183
117
0.639
hydrology and water resources
climate change
ecosystems
food systems
sustainability
Matthew Mccartney
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
143
73
0.510
Simon Langan
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
135
68
0.504
water quality
soils
river basin management
irrigation
water futures and scenarios
Sisira Siribaddana
Rajarata University
Mihintale, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
124
84
0.677
Atula Sd Sandanayaka
Sabaragamuwa University
Sendai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
118
59
0.500
Organic laser
Organic Light-Emitting Device
Organic semiconductor
Supramolecular Architecture for Light Energy Conversion
Or
Paul Pavelic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
100
53
0.530
Sam Kularatne
University of Peradeniya
Peradeniya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
97
77
0.794
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!
Senaka Rajapakse
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
74
0.771
Athula Sumathipala
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
87
53
0.609
Saroj Jayasinghe
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
clinical reasoning
complexity science
health equity
social determinants of health
Carukshi Arambepola
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
53
0.828
Chandrika Wijeyaratne
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
53
44
0.830
Shaluka Jayamanne
University of Kelaniya
Kelaniya, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
52
45
0.865
Manjula Ranagalage Jsps
Rajarata University
Mihintale, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
GIS & Remote Sensing
GIScience
Geospatial Analysis
Urban Geography
Land change science
Hasintha Wijesekara
Sabaragamuwa University
Sendai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
43
0.896
Wastewater characterization and treatments
Nano Zero Valent Iron Synthesis
Carbon Sequestration
Simon Parkinson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
46
40
0.870
Achala Jayatilleke
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
43
0.956
Digital Health
Health Information Systems
NCDs
Injury & Violence Prevention
Thilini Chanchala Agampodi
Rajarata University
Mihintale, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
39
0.867
Maternal and Child Health
Social Epidemiology
Qualitative Research
Anjana Silva
Rajarata University
Mihintale, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
32
0.711
Jonathan Lautze
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
27
0.614
Godwin Constantine
University of Colombo
Colombo, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
34
0.791
Anil Gunaratne
Sabaragamuwa University
Sendai, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
40
31
0.775
Starch Sceince and Technology
Bioactive compounds in grains and legumes