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
![Thomas M Missimer](https://cdn.adscientificindex.com/pictures/3b/1361422.jpg)
hydrogeology
geology
water resources management
artificial recharge
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
66
0.606
* Total i10 IndexRankings
Ranking Based On Selection: 2
![James H Macdonald, Jr](https://cdn.adscientificindex.com/pictures/e2/5196323.jpg)
Geology
Igneous Petrology
Tectonics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
* Total i10 IndexRankings
Ranking Based On Selection: 3
![Rachel Rotz](/user/assets/images/profile/no-profile-photo.png)
Hydrogeology
Inland Freshwater Lens
Water Resources
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection: 4
![James Javaruski](/user/assets/images/profile/no-profile-photo.png)
Sediment Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Thomas M Missimer
Florida Gulf Coast University
Fort Myers, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
66
0.606
hydrogeology
geology
water resources management
artificial recharge
James H Macdonald, Jr
Florida Gulf Coast University
Fort Myers, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
1
0.200
Geology
Igneous Petrology
Tectonics
Rachel Rotz
Florida Gulf Coast University
Fort Myers, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Hydrogeology
Inland Freshwater Lens
Water Resources
James Javaruski
Florida Gulf Coast University
Fort Myers, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000