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
![Cosmo Ngongondo](https://cdn.adscientificindex.com/pictures/3d/105943.jpg)
Hydrology
Climate
Water Resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
* Total i10 IndexRankings
Ranking Based On Selection: 2
![HWT Mapoma|Harold T Mapoma, Harold Mapoma, Harold W. Mapoma](https://cdn.adscientificindex.com/pictures/c1/4308290.jpg)
Air Quality
Hydrogeochemistry
Hydrochemical Modelling
Groundwater
Ecohydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Chikondi Chisenga](https://cdn.adscientificindex.com/pictures/cc/4315004.jpg)
Earth Sciences
Planetary geophysics
Geodynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 4
![Joshua Chisambi](https://cdn.adscientificindex.com/pictures/3d/4314986.jpg)
Mineral Exploration
Economic Geology
Exploration Geophysics
Ore deposits
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 5
![Richard Ls Mvula](https://cdn.adscientificindex.com/pictures/25/5832729.jpg)
Enivironmental engineering
Waste Management
One Health
Earth Sciences
ESIA
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 6
![Abdul Samson](https://cdn.adscientificindex.com/pictures/fb/4753443.jpg)
Geotechnical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Cosmo Ngongondo
University of Malawi
Zomba, Malawi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
31
26
0.839
Hydrology
Climate
Water Resources
HWT Mapoma|Harold T Mapoma, Harold Mapoma, Harold W. Mapoma
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
17
14
0.824
Air Quality
Hydrogeochemistry
Hydrochemical Modelling
Groundwater
Ecohydrology
Chikondi Chisenga
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
10
10
1.000
Earth Sciences
Planetary geophysics
Geodynamics
Joshua Chisambi
University of Malawi The Polytechnic
Blantyre, Malawi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Mineral Exploration
Economic Geology
Exploration Geophysics
Ore deposits
Richard Ls Mvula
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Enivironmental engineering
Waste Management
One Health
Earth Sciences
ESIA
Abdul Samson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0