Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Architecture and Design, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![Jürgen Böhner](https://cdn.adscientificindex.com/pictures/2b/1784165.jpg)
Physical Geography
Climatology
GIS
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,639
9,743
0.714
![Jürgen Scheffran](https://cdn.adscientificindex.com/pictures/9d/1784166.jpg)
Climate-Migration-Conflict
Energy-Water-Food Nexus
Rural-Urban-Coastal Relations
Complexity-Stability-Sustainability
ABM
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,836
9,207
0.665
* Last 6 Years Citation Counts Rankings
![Beate Ratter](/user/assets/images/profile/no-profile-photo.png)
Climate Change Adaptation
Island Studies
Integrative Geographie
Complexity Theory
Coastal Management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,904
1,807
0.622
* Last 6 Years Citation Counts Rankings
![Parnreiter](/user/assets/images/profile/no-profile-photo.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,942
808
0.275
* Last 6 Years Citation Counts Rankings
![Cormac Walsh](https://cdn.adscientificindex.com/pictures/0a/5113109.jpg)
maritime spatial planning
marine conservation
protected area management
transboundary governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
799
527
0.660
* Last 6 Years Citation Counts Rankings
![Christin Bernhold](https://cdn.adscientificindex.com/pictures/10/5682796.jpg)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
69
0.873
Jürgen Böhner
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,639
9,743
0.714
Physical Geography
Climatology
GIS
Remote Sensing
Jürgen Scheffran
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,836
9,207
0.665
Climate-Migration-Conflict
Energy-Water-Food Nexus
Rural-Urban-Coastal Relations
Complexity-Stability-Sustainability
ABM
Beate Ratter
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,904
1,807
0.622
Climate Change Adaptation
Island Studies
Integrative Geographie
Complexity Theory
Coastal Management
Parnreiter
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,942
808
0.275
Cormac Walsh
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
799
527
0.660
maritime spatial planning
marine conservation
protected area management
transboundary governance
Christin Bernhold
Universität Hamburg
Hamburg, Germany
![Germany](/flags/de.png)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
79
69
0.873