The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection :1
Physical oceanography and climate research
remote sensing
data assimilation
climate modeling.
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,584
8,485
0.412
* Total Citation Counts Rankings
Ranking Based On Selection :2
Micropaleontology
Paleoceanography
Paleoclimatology
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,916
3,120
0.394
* Total Citation Counts Rankings
Ranking Based On Selection :3
Physical Oceanography
Climate Change
Ocean Modelling
Data Assimilation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,391
3,097
0.485
* Total Citation Counts Rankings
Ranking Based On Selection :4
Ship Structures
Extreme Conditions
Experiments
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,346
2,804
0.645
* Total Citation Counts Rankings
Ranking Based On Selection :5
Arctic
Permafrost
Carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,374
1,594
0.671
* Total Citation Counts Rankings
Ranking Based On Selection :6
Physical Oceanography
Meteorology
Ocean Modelling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,323
860
0.370
* Total Citation Counts Rankings
Ranking Based On Selection :7
Marine Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,021
992
0.491
* Total Citation Counts Rankings
Ranking Based On Selection :8
Experimental evolution
marine microorganisms
marine viruses phenotypic plasticity
tea
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,496
1,203
0.804
* Total Citation Counts Rankings
Ranking Based On Selection :9
Sustainable Fisheries & Aquaculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,045
969
0.927
* Total Citation Counts Rankings
Ranking Based On Selection :10
Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
831
791
0.952
* Total Citation Counts Rankings
Ranking Based On Selection :11
marine ecology
population dynamics
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
428
333
0.778
* Total Citation Counts Rankings
Ranking Based On Selection :12
Marine structures
Ship design
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
388
360
0.928
* Total Citation Counts Rankings
Ranking Based On Selection :13
Field robotics
Marine robotics
Monitoring and Exploration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
298
0.961
* Total Citation Counts Rankings
Ranking Based On Selection :14
Physical Oceanography
Statistical Physics
Anomalous Diffusion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
75
0.255
* Total Citation Counts Rankings
Ranking Based On Selection :15
Arctic Ecosystems
Ecological Stoichiomtry
Nutrient limitation
Elemental cycles
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
212
117
0.552
* Total Citation Counts Rankings
Ranking Based On Selection :16
Climate
Atmosphere
Ocean
Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
158
95
0.601
* Total Citation Counts Rankings
Ranking Based On Selection :17
Marine ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
37
0.578
* Total Citation Counts Rankings
Ranking Based On Selection :18
Marine Ecosystem Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
* Total Citation Counts Rankings
Ranking Based On Selection :19
Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :20
Physical Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :21
Marine Biology
Evolutionary Biology
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Detlef Stammer
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,584
8,485
0.412
Physical oceanography and climate research
remote sensing
data assimilation
climate modeling.
Gerhard Schmiedl
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,916
3,120
0.394
Micropaleontology
Paleoceanography
Paleoclimatology
Geology
Armin Köhl
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,391
3,097
0.485
Physical Oceanography
Climate Change
Ocean Modelling
Data Assimilation
Sören Ehlers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,346
2,804
0.645
Ship Structures
Extreme Conditions
Experiments
Sebastian Zubrzycki
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,374
1,594
0.671
Arctic
Permafrost
Carbon
Nuno Serra
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,323
860
0.370
Physical Oceanography
Meteorology
Ocean Modelling
Rolf Koppelmann
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,021
992
0.491
C Elisa Schaum
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,496
1,203
0.804
Experimental evolution
marine microorganisms
marine viruses phenotypic plasticity
tea
Zaki Sharawy
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,045
969
0.927
Sustainable Fisheries & Aquaculture
Nils Brüggemann
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
831
791
0.952
Xochitl Cormon
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
428
333
0.778
marine ecology
population dynamics
climate change
Aleksandar-Saša Milaković
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
388
360
0.928
Marine structures
Ship design
Artificial Intelligence
Daniel A Duecker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
310
298
0.961
Field robotics
Marine robotics
Monitoring and Exploration
Julia Draeger-Dietel
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
294
75
0.255
Physical Oceanography
Statistical Physics
Anomalous Diffusion
Fabian Beermann
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
212
117
0.552
Arctic Ecosystems
Ecological Stoichiomtry
Nutrient limitation
Elemental cycles
Robert Boschi
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
158
95
0.601
Climate
Atmosphere
Ocean
Physics
Frane Madiraca
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
37
0.578
Thejus Mahajan
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25
22
0.880
Marine Ecosystem Modeling
Daniel Thewes
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Chathurika H Wickramage
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Physical Oceanography
Carla Pein
Universität Hamburg
Hamburg, Germany
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7
7
1.000
Marine Biology
Evolutionary Biology
Ecology