Citation Rankings
Highly Cited Researchers
Engineering & Technology / Marine Sciences and Engineering Highly Cited Researchers Citation Rankings 2025
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
Biological Oceanography
nutrients
phytoplankton
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,209
55,091
0.410
* Total Citation Counts Rankings
Ranking Based On Selection :2
Microplastics
ecology of coastal defences
marine ecology
marine pollution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,148
79,291
0.754
* Total Citation Counts Rankings
Ranking Based On Selection :3
organic geochemistry
microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103,195
37,317
0.362
* Total Citation Counts Rankings
Ranking Based On Selection :4
Hydrological Modelling
Climate analysis
Statistics
Programming
Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,193
22,938
0.257
* Total Citation Counts Rankings
Ranking Based On Selection :5
Chemical Oceanographer Carbon Cycle Ocean Acidiification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,618
34,103
0.418
* Total Citation Counts Rankings
Ranking Based On Selection :6
Marine ecology
conservation biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,696
42,073
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :7
Environment
Climate Change
Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,300
30,683
0.392
* Total Citation Counts Rankings
Ranking Based On Selection :8
Physical Chemistry of Natural Waters
Chemical Oceanography
Marine Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,210
21,025
0.269
* Total Citation Counts Rankings
Ranking Based On Selection :9
microbiology
oceanography
earth sciences
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,994
25,749
0.339
* Total Citation Counts Rankings
Ranking Based On Selection :10
Oceanography
Physical Oceanography
Climate Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74,013
34,498
0.466
* Total Citation Counts Rankings
Ranking Based On Selection :11
Climate change
climate variability
climate modeling
ocean-atmospheric dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,047
39,249
0.537
* Total Citation Counts Rankings
Ranking Based On Selection :12
Marine biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,836
19,689
0.286
* Total Citation Counts Rankings
Ranking Based On Selection :13
Radiocarbon dating and calibration
marine and freshwater reservoir corrections
carbon cycling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,278
24,368
0.357
* Total Citation Counts Rankings
Ranking Based On Selection :14
Molucular biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,090
36,349
0.558
* Total Citation Counts Rankings
Ranking Based On Selection :15
plankton ecosystems
carbon cycling in the ocean
Earth System science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,673
38,223
0.600
* Total Citation Counts Rankings
Ranking Based On Selection :16
marine ecology
paleobiology
and conservation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,177
18,433
0.292
* Total Citation Counts Rankings
Ranking Based On Selection :17
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,283
30,439
0.489
* Total Citation Counts Rankings
Ranking Based On Selection :18
comparative immunology
fish immunology
marine microbiology
marine biotechnology
SOI-USTAN
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,831
33,100
0.535
* Total Citation Counts Rankings
Ranking Based On Selection :19
microbiology
marine microbiology
microbial genomics
metagenomics
microbial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,408
17,120
0.283
* Total Citation Counts Rankings
Ranking Based On Selection :20
Biological oceanography
Marine microbiology
Microbial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,445
24,223
0.407
* Total Citation Counts Rankings
Ranking Based On Selection :21
Ocean optics (海洋光学）
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,313
25,837
0.436
* Total Citation Counts Rankings
Ranking Based On Selection :22
Marine Ecology
Evolutionary Biology
Conservation Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,562
19,909
0.346
* Total Citation Counts Rankings
Ranking Based On Selection :23
climate
biogeochemical cycles
energy / environment
ocean acidification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,127
23,613
0.413
* Total Citation Counts Rankings
Ranking Based On Selection :24
coastal processes
coral reefs
coral calcification
ocean acidification
climate change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,720
17,476
0.319
* Total Citation Counts Rankings
Ranking Based On Selection :25
instabilities
fluid dynamics
bacterial dynamics
physical oceanography
granular media
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,306
10,235
0.188
* Total Citation Counts Rankings
Rankings
1,766
72
6
Ranking Based On Selection: 1
Paul J Harrison
University of British Columbia
Vancouver, Canada
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134,209
55,091
0.410
Biological Oceanography
nutrients
phytoplankton
* Total Citation Counts Rankings
Rankings
2,835
219
1
Ranking Based On Selection: 2
Richard Thompson
University of Plymouth
Plymouth, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,148
79,291
0.754
Microplastics
ecology of coastal defences
marine ecology
marine pollution
* Total Citation Counts Rankings
Rankings
2,942
67
1
Ranking Based On Selection: 3
Jaap Sinninghe Damste
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
103,195
37,317
0.362
organic geochemistry
microbiology
* Total Citation Counts Rankings
Rankings
3,867
215
1
Ranking Based On Selection: 4
Letizia Lusito
Università del Salento
Lecce, Italy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
89,193
22,938
0.257
Hydrological Modelling
Climate analysis
Statistics
Programming
Oceanography
* Total Citation Counts Rankings
Rankings
4,475
2,133
1
Ranking Based On Selection: 5
Richard Feely
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,618
34,103
0.418
Chemical Oceanographer Carbon Cycle Ocean Acidiification
* Total Citation Counts Rankings
Rankings
4,563
2,177
10
Ranking Based On Selection: 6
Benjamin S Halpern
University of California Santa Barbara
Santa Barbara, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
80,696
42,073
0.521
Marine ecology
conservation biology
* Total Citation Counts Rankings
Rankings
4,838
2,305
53
Ranking Based On Selection: 7
Veerabhadran Ramanathan
University of California San Diego
San Diego, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,300
30,683
0.392
Environment
Climate Change
Ecology
* Total Citation Counts Rankings
Rankings
4,848
2,308
5
Ranking Based On Selection: 8
Frank Millero
University of Miami
Coral Gables, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
78,210
21,025
0.269
Physical Chemistry of Natural Waters
Chemical Oceanography
Marine Chemistry
* Total Citation Counts Rankings
Rankings
5,096
2,417
7
Ranking Based On Selection: 9
David Karl
University of Hawaii System
Honolulu, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
75,994
25,749
0.339
microbiology
oceanography
earth sciences
biogeochemistry
* Total Citation Counts Rankings
Rankings
5,339
218
1
Ranking Based On Selection: 10
NL Bindoff
University of Tasmania
Hobart, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
74,013
34,498
0.466
Oceanography
Physical Oceanography
Climate Change
* Total Citation Counts Rankings
Rankings
5,432
2,576
59
Ranking Based On Selection: 11
Shang Ping Xie
University of California San Diego
San Diego, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
73,047
39,249
0.537
Climate change
climate variability
climate modeling
ocean-atmospheric dynamics
* Total Citation Counts Rankings
Rankings
5,975
31
5
Ranking Based On Selection: 12
Bo Barker Jørgensen
Aarhus University
Aarhus, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,836
19,689
0.286
Marine biogeochemistry
* Total Citation Counts Rankings
Rankings
6,056
515
2
Ranking Based On Selection: 13
PJ Reimer
Queen's University Belfast
Belfast, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68,278
24,368
0.357
Radiocarbon dating and calibration
marine and freshwater reservoir corrections
carbon cycling
* Total Citation Counts Rankings
Rankings
6,540
180
1
Ranking Based On Selection: 14
Yang Liu
Dalian Maritime University
Dalian, China
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
65,090
36,349
0.558
* Total Citation Counts Rankings
Rankings
6,789
42
16
Ranking Based On Selection: 15
Katherine Richardson
University of Copenhagen
Copenhagen, Denmark
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,673
38,223
0.600
plankton ecosystems
carbon cycling in the ocean
Earth System science
* Total Citation Counts Rankings
Rankings
6,867
3,261
1
Ranking Based On Selection: 16
Jeremy BC Jackson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
63,177
18,433
0.292
marine ecology
paleobiology
and conservation
* Total Citation Counts Rankings
Rankings
7,038
606
8
Ranking Based On Selection: 17
Robert J Nicholls
University of East Anglia
Norwich, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
62,283
30,439
0.489
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
* Total Citation Counts Rankings
Rankings
7,127
617
4
Ranking Based On Selection: 18
Valerie J Smith
University of Saint Andrews
St Andrews, United Kingdom
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,831
33,100
0.535
comparative immunology
fish immunology
marine microbiology
marine biotechnology
SOI-USTAN
* Total Citation Counts Rankings
Rankings
7,377
3,501
10
Ranking Based On Selection: 19
Edward Francis Delong
University of Hawaii System
Honolulu, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,408
17,120
0.283
microbiology
marine microbiology
microbial genomics
metagenomics
microbial ecology
* Total Citation Counts Rankings
Rankings
7,569
3,591
38
Ranking Based On Selection: 20
Jed A Fuhrman
University of Southern California
Los Angeles, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,445
24,223
0.407
Biological oceanography
Marine microbiology
Microbial ecology
* Total Citation Counts Rankings
Rankings
7,603
205
1
Ranking Based On Selection: 21
Guifen Wang (王桂芬）
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,313
25,837
0.436
* Total Citation Counts Rankings
Rankings
7,958
3,788
1
Ranking Based On Selection: 22
Robert Steneck
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,562
19,909
0.346
Marine Ecology
Evolutionary Biology
Conservation Biology
* Total Citation Counts Rankings
Rankings
8,069
3,850
3
Ranking Based On Selection: 23
Ken Caldeira
Carnegie Institution for Science
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,127
23,613
0.413
climate
biogeochemical cycles
energy / environment
ocean acidification
* Total Citation Counts Rankings
Rankings
8,674
339
17
Ranking Based On Selection: 24
Malcolm Mcculloch
University of Western Australia
Crawley, Australia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,720
17,476
0.319
coastal processes
coral reefs
coral calcification
ocean acidification
climate change
* Total Citation Counts Rankings
Rankings
8,777
4,192
35
Ranking Based On Selection: 25
Harry Swinney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,306
10,235
0.188
instabilities
fluid dynamics
bacterial dynamics
physical oceanography
granular media