The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index"and Subject Rankings.
![Thorsten Dittmar](/user/assets/images/profile/no-profile-photo.png)
Professor for Marine Geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
73
0.839
![Martin Koenneke](https://cdn.adscientificindex.com/pictures/66/1782856.jpg)
Marine Microbiology
Ecophysiology
Biogeochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
34
28
0.824
![Stephan L. Seibert](/user/assets/images/profile/no-profile-photo.png)
hydrogeochemistry
large-scale groundwater modeling
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
![Sarah Bercovici](https://cdn.adscientificindex.com/pictures/0c/5261796.jpg)
marine biogeochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
![Kojo Amoako](https://cdn.adscientificindex.com/pictures/f6/5262309.jpg)
Organic Geochemistry
Petroleum Geochemistry
Marine Geochemistry
Stable Carbon Isotope
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Thorsten Dittmar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
87
73
0.839
Professor for Marine Geochemistry
Martin Koenneke
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
34
28
0.824
Marine Microbiology
Ecophysiology
Biogeochemistry
Stephan L. Seibert
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
hydrogeochemistry
large-scale groundwater modeling
Sarah Bercovici
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Kojo Amoako
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
3
3
1.000
Organic Geochemistry
Petroleum Geochemistry
Marine Geochemistry
Stable Carbon Isotope