Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.373 Scientists Citation Rankings - 2025
The Citation Rankings (Highly Cited Researchers) list 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: 26
Environmental Economics
non market valuation
public lands
recreation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,317
7,024
0.199
* Total Citation Counts Rankings
Ranking Based On Selection: 27
Plant community ecology
grassland ecosystems
global change
climate extremes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,763
17,596
0.521
* Total Citation Counts Rankings
Ranking Based On Selection: 28
Artificial Intelligence
Local Search
Evolutionary Computation
Neural Networks
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,208
6,451
0.194
* Total Citation Counts Rankings
Ranking Based On Selection: 29
Atmospheric aerosols
atmospheric chemistry
aerosol-cloud interactions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,482
10,787
0.332
* Total Citation Counts Rankings
Ranking Based On Selection: 30
Ecology
Microbial Ecology
Soil
Biogeochemistry
Global Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,372
16,432
0.541
* Total Citation Counts Rankings
Ranking Based On Selection: 31
agriculture
climate
adaptation
sustainability
food-energy-water nexus
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,268
18,791
0.621
* Total Citation Counts Rankings
Ranking Based On Selection: 32
ecosystem ecology
carbon cycling
nitrogen cycling
greenhouse gases
agriculture
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,785
14,651
0.492
* Total Citation Counts Rankings
Ranking Based On Selection: 33
atmospheric aerosols
ice nucleation
atmospheric chemistry
cloud physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,123
11,554
0.397
* Total Citation Counts Rankings
Ranking Based On Selection: 34
Stochastic processes
Time series
probability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,406
6,356
0.224
* Total Citation Counts Rankings
Ranking Based On Selection: 35
Climate
atmospheric science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,414
7,256
0.265
* Total Citation Counts Rankings
Ranking Based On Selection: 36
biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,948
10,764
0.399
* Total Citation Counts Rankings
Ranking Based On Selection: 37
Structural reliability
probabilistic risk analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,365
8,721
0.331
* Total Citation Counts Rankings
Ranking Based On Selection: 38
B2B Marketing
Buyer-seller relationships
cross-cultural
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,069
5,421
0.208
* Total Citation Counts Rankings
Ranking Based On Selection: 39
Microbial Food Satety
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,829
5,048
0.195
* Total Citation Counts Rankings
Ranking Based On Selection: 40
litter decomposition
soil organic matter
stable isotopes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,104
15,001
0.598
* Total Citation Counts Rankings
Ranking Based On Selection: 41
fire ecology
forest ecology
landscape ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,049
4,950
0.198
* Total Citation Counts Rankings
Ranking Based On Selection: 42
chemistry
theoretical chemistry
computational chemistry
inorganic chemistry
catalysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,011
6,690
0.279
* Total Citation Counts Rankings
Ranking Based On Selection: 43
Plant disease and resistance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,960
9,884
0.413
* Total Citation Counts Rankings
Ranking Based On Selection: 44
ecosystem ecology
biogeochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,208
6,750
0.291
* Total Citation Counts Rankings
Ranking Based On Selection: 45
cell biology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,127
3,621
0.157
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Analytical Chemistry
Lab-on-a-Chip
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,947
12,092
0.527
* Total Citation Counts Rankings
Ranking Based On Selection: 47
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,514
1,819
0.081
* Total Citation Counts Rankings
Ranking Based On Selection: 48
work stress
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,070
5,042
0.228
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Statistical Signal Processing
Statistics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,063
4,095
0.186
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Sustainability
biofuels
renewable energy
life cycle assessment
ethics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,950
6,543
0.298
* Total Citation Counts Rankings
Rankings
17,860
8,338
26
Ranking Based On Selection: 26
John Loomis
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,317
7,024
0.199
Environmental Economics
non market valuation
public lands
recreation
* Total Citation Counts Rankings
Rankings
19,107
8,886
27
Ranking Based On Selection: 27
Melinda D Smith
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,763
17,596
0.521
Plant community ecology
grassland ecosystems
global change
climate extremes
* Total Citation Counts Rankings
Rankings
19,611
9,104
28
Ranking Based On Selection: 28
L Darrell Whitley
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,208
6,451
0.194
Artificial Intelligence
Local Search
Evolutionary Computation
Neural Networks
* Total Citation Counts Rankings
Rankings
20,305
9,393
29
Ranking Based On Selection: 29
Sonia Kreidenweis
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,482
10,787
0.332
Atmospheric aerosols
atmospheric chemistry
aerosol-cloud interactions
* Total Citation Counts Rankings
Rankings
22,561
10,391
30
Ranking Based On Selection: 30
Matthew Wallenstein
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,372
16,432
0.541
Ecology
Microbial Ecology
Soil
Biogeochemistry
Global Change
* Total Citation Counts Rankings
Rankings
22,685
10,452
31
Ranking Based On Selection: 31
Nathan D Mueller|Nathaniel D. Mueller
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,268
18,791
0.621
agriculture
climate
adaptation
sustainability
food-energy-water nexus
* Total Citation Counts Rankings
Rankings
23,289
10,732
32
Ranking Based On Selection: 32
Richard T Conant
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,785
14,651
0.492
ecosystem ecology
carbon cycling
nitrogen cycling
greenhouse gases
agriculture
* Total Citation Counts Rankings
Rankings
24,094
11,083
33
Ranking Based On Selection: 33
Paul J Demott
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,123
11,554
0.397
atmospheric aerosols
ice nucleation
atmospheric chemistry
cloud physics
* Total Citation Counts Rankings
Rankings
24,989
11,476
34
Ranking Based On Selection: 34
Pjbrockwell
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,406
6,356
0.224
Stochastic processes
Time series
probability
* Total Citation Counts Rankings
Rankings
26,313
12,045
35
Ranking Based On Selection: 35
David Wj Thompson
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,414
7,256
0.265
Climate
atmospheric science
* Total Citation Counts Rankings
Rankings
27,036
12,368
36
Ranking Based On Selection: 36
Elizabeth Pilon Smits
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,948
10,764
0.399
* Total Citation Counts Rankings
Rankings
27,963
12,743
37
Ranking Based On Selection: 37
Bruce Ellingwood
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,365
8,721
0.331
Structural reliability
probabilistic risk analysis
* Total Citation Counts Rankings
Rankings
28,429
12,932
38
Ranking Based On Selection: 38
Joseph Cannon
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,069
5,421
0.208
B2B Marketing
Buyer-seller relationships
cross-cultural
* Total Citation Counts Rankings
Rankings
28,800
13,078
39
Ranking Based On Selection: 39
John Sofos
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,829
5,048
0.195
* Total Citation Counts Rankings
Rankings
30,080
13,637
40
Ranking Based On Selection: 40
M Francesca Cotrufo
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,104
15,001
0.598
litter decomposition
soil organic matter
stable isotopes
* Total Citation Counts Rankings
Rankings
30,182
13,691
41
Ranking Based On Selection: 41
William H Romme
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,049
4,950
0.198
fire ecology
forest ecology
landscape ecology
* Total Citation Counts Rankings
Rankings
32,079
14,469
42
Ranking Based On Selection: 42
Anthony Rappe
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
24,011
6,690
0.279
chemistry
theoretical chemistry
computational chemistry
inorganic chemistry
catalysis
* Total Citation Counts Rankings
Rankings
32,184
14,513
43
Ranking Based On Selection: 43
Jan E Leach
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,960
9,884
0.413
* Total Citation Counts Rankings
Rankings
33,653
15,112
44
Ranking Based On Selection: 44
Jill Baron
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,208
6,750
0.291
ecosystem ecology
biogeochemistry
* Total Citation Counts Rankings
Rankings
33,825
15,190
45
Ranking Based On Selection: 45
Jim Bamburg
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
23,127
3,621
0.157
* Total Citation Counts Rankings
Rankings
34,188
15,348
46
Ranking Based On Selection: 46
Charles Henry
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,947
12,092
0.527
Analytical Chemistry
Lab-on-a-Chip
* Total Citation Counts Rankings
Rankings
35,105
15,748
47
Ranking Based On Selection: 47
HJ Siegel
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,514
1,819
0.081
* Total Citation Counts Rankings
Rankings
36,115
16,145
48
Ranking Based On Selection: 48
Daniel C Ganster
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,070
5,042
0.228
* Total Citation Counts Rankings
Rankings
36,127
16,151
49
Ranking Based On Selection: 49
Louis Scharf
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
22,063
4,095
0.186
Statistical Signal Processing
Statistics
* Total Citation Counts Rankings
Rankings
36,402
16,261
50
Ranking Based On Selection: 50
John Sheehan
Colorado State University
Fort Collins, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,950
6,543
0.298
Sustainability
biofuels
renewable energy
life cycle assessment
ethics