Citation Rankings
Highly Cited Researchers
University of California Merced 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
Computer Vision
Machine Learning
Artificial Intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137,599
90,456
0.657
* Total Citation Counts Rankings
Ranking Based On Selection :2
Design and Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,082
23,660
0.249
* Total Citation Counts Rankings
Ranking Based On Selection :3
mechatronics
fractional calculus
uav
digital twins
parallel intelligence
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,879
26,057
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :4
Health Psychology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,989
28,421
0.547
* Total Citation Counts Rankings
Ranking Based On Selection :5
Climatology
Meteorology
Fire
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,150
26,990
0.814
* Total Citation Counts Rankings
Ranking Based On Selection :6
Ecosystem ecology
Soil microbial ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,771
10,879
0.342
* Total Citation Counts Rankings
Ranking Based On Selection :7
Service Science
Cognitive Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,522
10,441
0.354
* Total Citation Counts Rankings
Ranking Based On Selection :8
Evolution of the immune system
EvoDevo
comparative genomics
vertebrate evolution
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,451
7,967
0.271
* Total Citation Counts Rankings
Ranking Based On Selection :9
Environmental Geochemistry
Soil Chemistry
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,600
3,937
0.174
* Total Citation Counts Rankings
Ranking Based On Selection :10
Cognitive Science
Psycholinguistics
Visual Perception
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,423
6,784
0.303
* Total Citation Counts Rankings
Ranking Based On Selection :11
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,245
7,300
0.344
* Total Citation Counts Rankings
Ranking Based On Selection :12
Radiative heat transfer
spectroscopy
combustion
plasmas
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,208
6,129
0.303
* Total Citation Counts Rankings
Ranking Based On Selection :13
Tribology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,248
12,958
0.710
* Total Citation Counts Rankings
Ranking Based On Selection :14
water resources
climate adaptation
mountain hydrology
forest hydrology
crysophere
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,906
5,333
0.315
* Total Citation Counts Rankings
Ranking Based On Selection :15
Ecosystem Services Management
Applied Climatology
Wildfire
Seasonal Forecasting
Impact Assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,118
7,521
0.467
* Total Citation Counts Rankings
Ranking Based On Selection :16
Air Pollution
aerosols
atmospheric chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,215
2,622
0.184
* Total Citation Counts Rankings
Ranking Based On Selection :17
Cloud Computing
Distributed Computing
Cyber Security
Netorking
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,373
2,473
0.185
* Total Citation Counts Rankings
Ranking Based On Selection :18
health psychology
children's health and quality of life
health disparities
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,113
3,736
0.285
* Total Citation Counts Rankings
Ranking Based On Selection :19
soil science
terrestrial biogeochemistry
soil biogeochemistry
soil organic matter
soil carbon
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,679
9,605
0.758
* Total Citation Counts Rankings
Ranking Based On Selection :20
biophysics-bioengineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,976
2,016
0.168
* Total Citation Counts Rankings
Ranking Based On Selection :21
Microbiology
Genetics
Systems Biology
Molecular Biology
Synthetic Biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,819
7,067
0.598
* Total Citation Counts Rankings
Ranking Based On Selection :22
Precision agriculture
Sensors for soil and plants
Mechanical harvesting systems for tree crops
Mechanization and automation f
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,399
6,788
0.595
* Total Citation Counts Rankings
Ranking Based On Selection :23
Microbial Ecology
Biogeochemistry
Oceanography
Global Environmental Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,108
4,788
0.474
* Total Citation Counts Rankings
Ranking Based On Selection :24
Control
Optimization
Cell Mapping
Energy Harvesting
Neural Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,873
5,581
0.565
* Total Citation Counts Rankings
Ranking Based On Selection :25
biogeography
ecology
evolution
phylogeography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,623
3,985
0.414
* Total Citation Counts Rankings
Rankings
1,680
755
1
Ranking Based On Selection: 1
Ming Hsuan Yang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137,599
90,456
0.657
Computer Vision
Machine Learning
Artificial Intelligence
* Total Citation Counts Rankings
Rankings
3,441
1,644
2
Ranking Based On Selection: 2
William Shadish
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
95,082
23,660
0.249
* Total Citation Counts Rankings
Rankings
8,124
3,878
3
Ranking Based On Selection: 3
Yangquan Chen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
56,879
26,057
0.458
mechatronics
fractional calculus
uav
digital twins
parallel intelligence
* Total Citation Counts Rankings
Rankings
9,398
4,488
4
Ranking Based On Selection: 4
Martin Hagger
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
51,989
28,421
0.547
* Total Citation Counts Rankings
Rankings
19,135
8,931
5
Ranking Based On Selection: 5
John Abatzoglou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,150
26,990
0.814
Climatology
Meteorology
Fire
* Total Citation Counts Rankings
Rankings
20,491
9,511
6
Ranking Based On Selection: 6
Stephen C Hart
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,771
10,879
0.342
Ecosystem ecology
Soil microbial ecology
* Total Citation Counts Rankings
Rankings
23,010
10,635
7
Ranking Based On Selection: 7
Paul P Maglio
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,522
10,441
0.354
Service Science
Cognitive Science
* Total Citation Counts Rankings
Rankings
23,109
10,680
8
Ranking Based On Selection: 8
Chris T Amemiya
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,451
7,967
0.271
Evolution of the immune system
EvoDevo
comparative genomics
vertebrate evolution
* Total Citation Counts Rankings
Rankings
34,117
15,369
9
Ranking Based On Selection: 9
Samuel Traina
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,600
3,937
0.174
Environmental Geochemistry
Soil Chemistry
biogeochemistry
* Total Citation Counts Rankings
Rankings
34,498
15,515
10
Ranking Based On Selection: 10
Michael J Spivey
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,423
6,784
0.303
Cognitive Science
Psycholinguistics
Visual Perception
* Total Citation Counts Rankings
Rankings
37,244
16,652
11
Ranking Based On Selection: 11
Linda D Cameron
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,245
7,300
0.344
* Total Citation Counts Rankings
Rankings
40,011
17,744
12
Ranking Based On Selection: 12
Michael Modest
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20,208
6,129
0.303
Radiative heat transfer
spectroscopy
combustion
plasmas
* Total Citation Counts Rankings
Rankings
45,953
20,062
13
Ranking Based On Selection: 13
Ashlie Martini
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
18,248
12,958
0.710
* Total Citation Counts Rankings
Rankings
50,914
22,029
14
Ranking Based On Selection: 14
Roger Bales
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,906
5,333
0.315
water resources
climate adaptation
mountain hydrology
forest hydrology
crysophere
* Total Citation Counts Rankings
Rankings
54,331
23,352
15
Ranking Based On Selection: 15
Anthony Leroy Westerling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,118
7,521
0.467
Ecosystem Services Management
Applied Climatology
Wildfire
Seasonal Forecasting
Impact Assessment
* Total Citation Counts Rankings
Rankings
64,164
27,075
16
Ranking Based On Selection: 16
Wolfgang F Rogge
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,215
2,622
0.184
Air Pollution
aerosols
atmospheric chemistry
* Total Citation Counts Rankings
Rankings
69,392
28,970
17
Ranking Based On Selection: 17
Mukesh Singhal
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,373
2,473
0.185
Cloud Computing
Distributed Computing
Cyber Security
Netorking
* Total Citation Counts Rankings
Rankings
71,193
29,626
18
Ranking Based On Selection: 18
Jan Wallander
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13,113
3,736
0.285
health psychology
children's health and quality of life
health disparities
* Total Citation Counts Rankings
Rankings
74,254
30,726
19
Ranking Based On Selection: 19
Asmeret Asefaw Berhe
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
12,679
9,605
0.758
soil science
terrestrial biogeochemistry
soil biogeochemistry
soil organic matter
soil carbon
* Total Citation Counts Rankings
Rankings
79,539
32,658
20
Ranking Based On Selection: 20
Victor Munoz
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,976
2,016
0.168
* Total Citation Counts Rankings
Rankings
80,797
33,120
21
Ranking Based On Selection: 21
Clarissa J Nobile
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,819
7,067
0.598
Microbiology
Genetics
Systems Biology
Molecular Biology
Synthetic Biology
* Total Citation Counts Rankings
Rankings
84,444
34,448
22
Ranking Based On Selection: 22
Reza Ehsani
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,399
6,788
0.595
Precision agriculture
Sensors for soil and plants
Mechanical harvesting systems for tree crops
Mechanization and automation f
* Total Citation Counts Rankings
Rankings
97,320
38,923
23
Ranking Based On Selection: 23
J Michael Beman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,108
4,788
0.474
Microbial Ecology
Biogeochemistry
Oceanography
Global Environmental Change
* Total Citation Counts Rankings
Rankings
99,926
39,862
24
Ranking Based On Selection: 24
Jian Qiao Sun
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,873
5,581
0.565
Control
Optimization
Cell Mapping
Energy Harvesting
Neural Networks
* Total Citation Counts Rankings
Rankings
102,886
40,879
25
Ranking Based On Selection: 25
Michael N Dawson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9,623
3,985
0.414
biogeography
ecology
evolution
phylogeography