Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.531 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
land data assimilation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,570
19,182
0.525
* Total Citation Counts Rankings
Ranking Based On Selection: 27
Theoretical Cosmology and Astrophysics - Cosmic Microwave Background - Cosmic Infrared Background - Data analysis
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,622
14,150
0.397
* Total Citation Counts Rankings
Ranking Based On Selection: 28
atmospheric science
clouds
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,335
8,161
0.238
* Total Citation Counts Rankings
Ranking Based On Selection: 29
Atmospheric Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,536
11,088
0.331
* Total Citation Counts Rankings
Ranking Based On Selection: 30
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,979
16,110
0.488
* Total Citation Counts Rankings
Ranking Based On Selection: 31
astronomy
star formation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,799
9,384
0.286
* Total Citation Counts Rankings
Ranking Based On Selection: 32
Exoplanets
Astronomy
Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,569
15,122
0.479
* Total Citation Counts Rankings
Ranking Based On Selection: 33
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,545
13,635
0.432
* Total Citation Counts Rankings
Ranking Based On Selection: 34
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,511
8,183
0.260
* Total Citation Counts Rankings
Ranking Based On Selection: 35
drought
climate extremes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,907
12,709
0.411
* Total Citation Counts Rankings
Ranking Based On Selection: 36
Climate Change
Paleoclimate
climate modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,826
10,834
0.351
* Total Citation Counts Rankings
Ranking Based On Selection: 37
carbon cycle
climate
ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,749
4,990
0.168
* Total Citation Counts Rankings
Ranking Based On Selection: 38
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,719
6,023
0.203
* Total Citation Counts Rankings
Ranking Based On Selection: 39
Earth Science
carbon cycle
ozone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,200
12,294
0.421
* Total Citation Counts Rankings
Ranking Based On Selection: 40
Climate
Glaciology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,996
5,991
0.207
* Total Citation Counts Rankings
Ranking Based On Selection: 41
remote sensing
climate and air quality
wildfire
volcano
pollution plumes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,908
11,222
0.388
* Total Citation Counts Rankings
Ranking Based On Selection: 42
Magnetometers
Plasma
Mars
MAVEN
Juno
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,740
12,753
0.444
* Total Citation Counts Rankings
Ranking Based On Selection: 43
Climate Dynamics
Predictability
Earth System Processes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,682
13,314
0.464
* Total Citation Counts Rankings
Ranking Based On Selection: 44
Radar Interferometry
SAR Missions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,681
10,548
0.368
* Total Citation Counts Rankings
Ranking Based On Selection: 45
Ecology
tropical forest
Amazon
biogeochemistry
land use change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,497
8,457
0.297
* Total Citation Counts Rankings
Ranking Based On Selection: 46
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,282
14,020
0.496
* Total Citation Counts Rankings
Ranking Based On Selection: 47
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,014
12,935
0.462
* Total Citation Counts Rankings
Ranking Based On Selection: 48
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,863
6,650
0.239
* Total Citation Counts Rankings
Ranking Based On Selection: 49
Astronomy
Galaxy Evolution
Cosmology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,489
9,183
0.334
* Total Citation Counts Rankings
Ranking Based On Selection: 50
Atmospheric Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,448
3,275
0.119
* Total Citation Counts Rankings
Rankings
16,922
7,934
26
Ranking Based On Selection: 26
Rolf Reichle
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,570
19,182
0.525
* Total Citation Counts Rankings
Rankings
17,654
8,255
27
Ranking Based On Selection: 27
Paolo Serra
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,622
14,150
0.397
Theoretical Cosmology and Astrophysics - Cosmic Microwave Background - Cosmic Infrared Background - Data analysis
* Total Citation Counts Rankings
Rankings
18,670
8,685
28
Ranking Based On Selection: 28
Patrick Minnis
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
34,335
8,161
0.238
atmospheric science
clouds
remote sensing
* Total Citation Counts Rankings
Rankings
19,366
8,990
29
Ranking Based On Selection: 29
Mian Chin
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,536
11,088
0.331
* Total Citation Counts Rankings
Rankings
19,868
9,217
30
Ranking Based On Selection: 30
Jeff Masek
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,979
16,110
0.488
* Total Citation Counts Rankings
Rankings
20,045
9,295
31
Ranking Based On Selection: 31
Paul Goldsmith
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,799
9,384
0.286
* Total Citation Counts Rankings
Rankings
21,280
9,846
32
Ranking Based On Selection: 32
Joseph D Twicken
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,569
15,122
0.479
Exoplanets
Astronomy
Signal Processing
* Total Citation Counts Rankings
Rankings
21,307
9,860
33
Ranking Based On Selection: 33
Judith Racusin
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,545
13,635
0.432
* Total Citation Counts Rankings
Rankings
21,345
9,875
34
Ranking Based On Selection: 34
David P Bennett
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,511
8,183
0.260
* Total Citation Counts Rankings
Rankings
21,979
10,133
35
Ranking Based On Selection: 35
Siegfried Schubert
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,907
12,709
0.411
* Total Citation Counts Rankings
Rankings
22,057
10,165
36
Ranking Based On Selection: 36
Gavin Schmidt
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,826
10,834
0.351
Climate Change
Paleoclimate
climate modeling
* Total Citation Counts Rankings
Rankings
23,387
10,783
37
Ranking Based On Selection: 37
David Schimel
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,749
4,990
0.168
* Total Citation Counts Rankings
Rankings
23,432
10,800
38
Ranking Based On Selection: 38
Karl Stapelfeldt
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,719
6,023
0.203
* Total Citation Counts Rankings
Rankings
24,051
11,060
39
Ranking Based On Selection: 39
Steven Pawson
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,200
12,294
0.421
Earth Science
carbon cycle
ozone
* Total Citation Counts Rankings
Rankings
24,309
11,159
40
Ranking Based On Selection: 40
Jay Zwally
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,996
5,991
0.207
* Total Citation Counts Rankings
Rankings
24,408
11,204
41
Ranking Based On Selection: 41
Ralph Kahn
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,908
11,222
0.388
remote sensing
climate and air quality
wildfire
volcano
pollution plumes
* Total Citation Counts Rankings
Rankings
24,611
11,309
42
Ranking Based On Selection: 42
John Ep Connerney
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,740
12,753
0.444
* Total Citation Counts Rankings
Rankings
24,681
11,340
43
Ranking Based On Selection: 43
Duane Waliser
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,682
13,314
0.464
* Total Citation Counts Rankings
Rankings
24,684
11,343
44
Ranking Based On Selection: 44
Paul A Rosen
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,681
10,548
0.368
* Total Citation Counts Rankings
Rankings
24,931
11,446
45
Ranking Based On Selection: 45
Michael Keller
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,497
8,457
0.297
Ecology
tropical forest
Amazon
biogeochemistry
land use change
* Total Citation Counts Rankings
Rankings
25,208
11,574
46
Ranking Based On Selection: 46
Michael G Bosilovich
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,282
14,020
0.496
* Total Citation Counts Rankings
Rankings
25,535
11,722
47
Ranking Based On Selection: 47
Colleen A Wilson-Hodge
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,014
12,935
0.462
* Total Citation Counts Rankings
Rankings
25,748
11,812
48
Ranking Based On Selection: 48
James E Rhoads
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,863
6,650
0.239
* Total Citation Counts Rankings
Rankings
26,281
12,026
49
Ranking Based On Selection: 49
Kartik Sheth
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,489
9,183
0.334
* Total Citation Counts Rankings
Rankings
26,328
12,049
50
Ranking Based On Selection: 50
Hanwant Singh
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,448
3,275
0.119