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
![Tilak Priyadarshana Dodampe Gamage](https://cdn.adscientificindex.com/pictures/16/438373.jpg)
Water Resource Management
Hydrology
Aquatic Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
* Total i10 IndexRankings
Ranking Based On Selection: 2
![Champika Ellawala](https://cdn.adscientificindex.com/pictures/1d/5732109.jpg)
Environmental Engineering
Environmental management
Ecological Engineering
Aquatic ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Ramaithreepala](https://cdn.adscientificindex.com/pictures/4f/364474.jpg)
environmental science
photochemistry
geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
4
0.444
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Sujeewa Wimalasena|Wimalasena B.A.D.S.](https://cdn.adscientificindex.com/pictures/ae/4937574.jpg)
Sustainable construction
Construction productivity
Building Information Modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Keerththana Kumareswaran](https://cdn.adscientificindex.com/pictures/34/5732564.jpg)
Green infrastructures
Occupant comfort
Nature based solutions
Climate change
Environmental engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Wkcneetha Dayanthi](https://cdn.adscientificindex.com/pictures/22/4937587.jpg)
Environmental Engineering and Management
Water and Wastewater Treatment
EIAs
Water Reuse
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection: 7
![Isuri Shanika Ariyarathna](https://cdn.adscientificindex.com/pictures/ca/5732440.jpg)
Environmental engineering
Environmental science
Green Building Designing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 8
![Anuththara Gunawardana|M.H.M.A.S.V. Gunawardana](https://cdn.adscientificindex.com/pictures/99/5057570.jpg)
Environmental Science
GIS modeling
Molecular Biology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Tilak Priyadarshana Dodampe Gamage
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
11
0.611
Water Resource Management
Hydrology
Aquatic Ecology
Champika Ellawala
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
8
0.727
Environmental Engineering
Environmental management
Ecological Engineering
Aquatic ecology
Ramaithreepala
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
9
4
0.444
environmental science
photochemistry
geochemistry
Sujeewa Wimalasena|Wimalasena B.A.D.S.
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
0
0.000
Sustainable construction
Construction productivity
Building Information Modelling
Keerththana Kumareswaran
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Green infrastructures
Occupant comfort
Nature based solutions
Climate change
Environmental engineering
Wkcneetha Dayanthi
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Environmental Engineering and Management
Water and Wastewater Treatment
EIAs
Water Reuse
Isuri Shanika Ariyarathna
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Environmental engineering
Environmental science
Green Building Designing
Anuththara Gunawardana|M.H.M.A.S.V. Gunawardana
University of Ruhuna
Matara and Galle, Sri Lanka
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Environmental Science
GIS modeling
Molecular Biology