Citation Rankings
Highly Cited Researchers

Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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.

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
United States
Richard Feely
Chemical Oceanographer Carbon Cycle Ocean Acidiification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,618
34,103
0.418
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
United States
Judith Perlwitz
Climate variability and predictability
attribution
and chemistry-climate interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,040
27,249
0.478
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
United States
Luke R Thompson
Microbial Ecology
Metagenomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,899
26,988
0.934
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
United States
Colm Sweeney
greenhouse gasses
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,443
22,879
0.595
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
United States
Vaishali Naik
atmospheric chemistry
chemistry-climate
climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,090
18,612
0.663
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
United States
John Dunne
Oceanography
Biogeochemistry
Climate
Ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,425
18,268
0.581
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
United States
Larry Horowitz
Atmospheric Chemistry
Climate
Aerosols
Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,058
17,582
0.428
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
United States
Walter Hf Smith
Remote Sensing
Oceanography
Geophysics
Computer Science
Inverse Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,276
16,809
0.356
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
United States
Owen Cooper
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,342
16,111
0.612
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
United States
Pingping Xie
Satellite Meteorology
Climate Monitoring
Precipitation Analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,615
15,725
0.418
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
United States
Stephen M Griffies
climate
physical oceanography
numerical models
geophysical fluid dynamics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,621
15,450
0.522
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
United States
Andrew T Wittenberg
ENSO
El Nino
Climate Variability and Change
Climate Predictability
Climate Modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,595
15,439
0.522
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
United States
Denis Pierrot
Chemical Oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,467
15,316
0.748
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
United States
Steven J Bograd
Oceanography
Fisheries Oceanography
Climate Variability and Change
Marine Ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,210
14,693
0.583
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
United States
Thomas L Delworth
Climate variability and change
Climate modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,932
14,668
0.367
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
United States
Simone R Alin
global carbon cycle
ocean acidification
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,996
14,592
0.695
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
United States
Sa Montzka
atmospheric science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,152
13,858
0.460
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
United States
Tilden P Meyers
climate
water and carbon budgets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,754
13,824
0.331
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
United States
Michael Alexander
Air-Sea Interaction
Climate Dynamics
Climate Variability and Change
Marine Ecosystems...
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,555
13,731
0.517
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
United States
Muthuvel Chelliah
Climate Variability Analysis Prediction Hurricanes Reanalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,720
13,078
0.248
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
United States
Pk Quinn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,555
13,046
0.378
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
United States
Paul Ginoux
Geophysics
Aerosols
Modeling
Climate
Dust
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,343
12,997
0.402
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
United States
Graham Feingold
cloud physics
aerosol-cloud interactions
dynamical systems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,326
12,834
0.438
* Last 6 Years Citation Counts Rankings
Rankings
5,625
United States
2,271
1
Ranking Based On Selection: 1
Richard Feely
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
81,618
34,103
0.418
* Last 6 Years Citation Counts Rankings
Rankings
7,983
United States
3,234
2
Ranking Based On Selection: 2
Judith Perlwitz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
57,040
27,249
0.478
Climate variability and predictability
attribution
and chemistry-climate interactions
* Last 6 Years Citation Counts Rankings
Rankings
8,110
United States
3,272
3
Ranking Based On Selection: 3
Luke R Thompson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,899
26,988
0.934
* Last 6 Years Citation Counts Rankings
Rankings
10,469
United States
4,207
4
Ranking Based On Selection: 4
Colm Sweeney
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,443
22,879
0.595
* Last 6 Years Citation Counts Rankings
Rankings
10,824
United States
4,360
5
Ranking Based On Selection: 5
Michael J Mcphaden
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
50,152
22,357
0.446
* Last 6 Years Citation Counts Rankings
Rankings
14,254
United States
5,702
6
Ranking Based On Selection: 6
Vaishali Naik
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,090
18,612
0.663
atmospheric chemistry
chemistry-climate
climate
* Last 6 Years Citation Counts Rankings
Rankings
14,651
United States
5,858
7
Ranking Based On Selection: 7
John Dunne
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,425
18,268
0.581
* Last 6 Years Citation Counts Rankings
Rankings
15,510
United States
6,195
8
Ranking Based On Selection: 8
Larry Horowitz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,058
17,582
0.428
Atmospheric Chemistry
Climate
Aerosols
Modeling
* Last 6 Years Citation Counts Rankings
Rankings
16,636
United States
6,647
9
Ranking Based On Selection: 9
Walter Hf Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
47,276
16,809
0.356
Remote Sensing
Oceanography
Geophysics
Computer Science
Inverse Theory
* Last 6 Years Citation Counts Rankings
Rankings
17,730
United States
7,086
10
Ranking Based On Selection: 10
Owen Cooper
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,342
16,111
0.612
* Last 6 Years Citation Counts Rankings
Rankings
17,790
United States
7,111
11
Ranking Based On Selection: 11
Thomas Knutson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,051
16,079
0.446
* Last 6 Years Citation Counts Rankings
Rankings
18,375
United States
7,349
12
Ranking Based On Selection: 12
Pingping Xie
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,615
15,725
0.418
Satellite Meteorology
Climate Monitoring
Precipitation Analysis
* Last 6 Years Citation Counts Rankings
Rankings
18,853
United States
7,547
13
Ranking Based On Selection: 13
Stephen M Griffies
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,621
15,450
0.522
climate
physical oceanography
numerical models
geophysical fluid dynamics
* Last 6 Years Citation Counts Rankings
Rankings
18,881
United States
7,559
14
Ranking Based On Selection: 14
Andrew T Wittenberg
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,595
15,439
0.522
ENSO
El Nino
Climate Variability and Change
Climate Predictability
Climate Modeling
* Last 6 Years Citation Counts Rankings
Rankings
19,096
United States
7,643
15
Ranking Based On Selection: 15
Denis Pierrot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,467
15,316
0.748
* Last 6 Years Citation Counts Rankings
Rankings
20,388
United States
8,130
16
Ranking Based On Selection: 16
Steven J Bograd
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,210
14,693
0.583
Oceanography
Fisheries Oceanography
Climate Variability and Change
Marine Ecosystems
* Last 6 Years Citation Counts Rankings
Rankings
20,425
United States
8,151
17
Ranking Based On Selection: 17
Thomas L Delworth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
39,932
14,668
0.367
Climate variability and change
Climate modeling
* Last 6 Years Citation Counts Rankings
Rankings
20,596
United States
8,222
18
Ranking Based On Selection: 18
Simone R Alin
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,996
14,592
0.695
* Last 6 Years Citation Counts Rankings
Rankings
22,339
United States
8,878
19
Ranking Based On Selection: 19
Sa Montzka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,152
13,858
0.460
* Last 6 Years Citation Counts Rankings
Rankings
22,422
United States
8,906
20
Ranking Based On Selection: 20
Tilden P Meyers
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
41,754
13,824
0.331
climate
water and carbon budgets
* Last 6 Years Citation Counts Rankings
Rankings
22,662
United States
9,000
21
Ranking Based On Selection: 21
Michael Alexander
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,555
13,731
0.517
Air-Sea Interaction
Climate Dynamics
Climate Variability and Change
Marine Ecosystems...
* Last 6 Years Citation Counts Rankings
Rankings
24,330
United States
9,632
22
Ranking Based On Selection: 22
Muthuvel Chelliah
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
52,720
13,078
0.248
Climate Variability Analysis Prediction Hurricanes Reanalysis
* Last 6 Years Citation Counts Rankings
Rankings
24,406
United States
9,664
23
Ranking Based On Selection: 23
Pk Quinn
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,555
13,046
0.378
* Last 6 Years Citation Counts Rankings
Rankings
24,561
United States
9,730
24
Ranking Based On Selection: 24
Paul Ginoux
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,343
12,997
0.402
* Last 6 Years Citation Counts Rankings
Rankings
25,046
United States
9,908
25
Ranking Based On Selection: 25
Graham Feingold
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,326
12,834
0.438
cloud physics
aerosol-cloud interactions
dynamical systems