Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Click for "last 6 years' i10 index". Also see: Universities Rankings 2024 (Sort by : Total i10 Index) and Universities Rankings 2024 (Sort by : Last 6 Years i10 Index)
* Total i10 Index Rankings
World Rank
58,260
Country Rank
2,886
Institution Rank : 41
![](https://cdn.adscientificindex.com/logos/10443.png)
![Germany](/flags/de.png)
![Hartwig Frimmel](/user/assets/images/profile/no-profile-photo.png)
Geosciences
geology
petrology
geochemistry
economic geology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
107
0.728
* Total i10 Index Rankings
World Rank
148,895
Country Rank
6,373
Institution Rank : 90
![](https://cdn.adscientificindex.com/logos/10443.png)
![Germany](/flags/de.png)
![Hubert Job](https://cdn.adscientificindex.com/pictures/a5/1788569.jpg)
Spatial Planning
Regional Science
Tourism Economics
Protected Area Management
Environmental Perceptions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
51
0.622
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
58,260
![Germany](/flags/de.png)
2,886
![](https://cdn.adscientificindex.com/logos/10443.png)
41
Hartwig Frimmel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
147
107
0.728
![](https://cdn.adscientificindex.com/logos/10443.png)
Geosciences
geology
petrology
geochemistry
economic geology
* Total i10 Index Rankings
Rankings
![](/assets/images/world-icon.png)
148,895
![Germany](/flags/de.png)
6,373
![](https://cdn.adscientificindex.com/logos/10443.png)
90
Hubert Job
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
51
0.622
![](https://cdn.adscientificindex.com/logos/10443.png)
Spatial Planning
Regional Science
Tourism Economics
Protected Area Management
Environmental Perceptions