Citation Rankings
Highly Cited Researchers
NASA Ames Research Center Highly Cited Researchers Citation Rankings 2025
Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,906
28,803
0.849
* 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
33,777
16,111
0.477
* Total Citation Counts Rankings
Ranking Based On Selection :28
atmospheric science
clouds
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,646
9,161
0.272
* Total Citation Counts Rankings
Ranking Based On Selection :29
Atmospheric Sciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,622
12,257
0.376
* Total Citation Counts Rankings
Ranking Based On Selection :30
astronomy
star formation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,868
10,338
0.324
* Total Citation Counts Rankings
Ranking Based On Selection :31
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,437
17,370
0.553
* Total Citation Counts Rankings
Ranking Based On Selection :32
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,757
8,785
0.286
* Total Citation Counts Rankings
Ranking Based On Selection :33
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,324
15,464
0.510
* Total Citation Counts Rankings
Ranking Based On Selection :34
Exoplanets
Astronomy
Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,220
15,683
0.519
* Total Citation Counts Rankings
Ranking Based On Selection :35
drought
climate extremes
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,781
13,956
0.469
* Total Citation Counts Rankings
Ranking Based On Selection :36
Climate Change
Paleoclimate
climate modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,600
11,316
0.382
* Total Citation Counts Rankings
Ranking Based On Selection :37
carbon cycle
climate
ecosystems
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,227
5,721
0.196
* Total Citation Counts Rankings
Ranking Based On Selection :38
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29,044
6,416
0.221
* Total Citation Counts Rankings
Ranking Based On Selection :39
Climate
Glaciology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,362
6,668
0.235
* Total Citation Counts Rankings
Ranking Based On Selection :40
Earth Science
carbon cycle
ozone
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,081
13,172
0.469
* 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
27,860
11,923
0.428
* Total Citation Counts Rankings
Ranking Based On Selection :42
Ecology
tropical forest
Amazon
biogeochemistry
land use change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,585
9,314
0.338
* 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
27,523
14,339
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :44
Radar Interferometry
SAR Missions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,500
11,040
0.401
* Total Citation Counts Rankings
Ranking Based On Selection :45
Magnetometers
Plasma
Mars
MAVEN
Juno
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,489
13,417
0.488
* Total Citation Counts Rankings
Ranking Based On Selection :46
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,079
7,111
0.263
* Total Citation Counts Rankings
Ranking Based On Selection :47
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,022
15,007
0.555
* Total Citation Counts Rankings
Ranking Based On Selection :48
Atmospheric Chemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,914
3,635
0.135
* Total Citation Counts Rankings
Ranking Based On Selection :49
Atmospheric physics
radiative transfer
remote sensing
astrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,869
9,503
0.354
* Total Citation Counts Rankings
Ranking Based On Selection :50
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,778
14,480
0.541
* Total Citation Counts Rankings
Rankings
17,906
8,421
26
Ranking Based On Selection: 26
Miguel De Val-Borro
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
33,906
28,803
0.849
* Total Citation Counts Rankings
Rankings
17,985
8,448
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
33,777
16,111
0.477
Theoretical Cosmology and Astrophysics - Cosmic Microwave Background - Cosmic Infrared Background - Data analysis
* Total Citation Counts Rankings
Rankings
18,091
8,492
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
33,646
9,161
0.272
atmospheric science
clouds
remote sensing
* Total Citation Counts Rankings
Rankings
18,946
8,887
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
32,622
12,257
0.376
* Total Citation Counts Rankings
Rankings
19,691
9,210
30
Ranking Based On Selection: 30
Paul Goldsmith
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,868
10,338
0.324
* Total Citation Counts Rankings
Rankings
20,095
9,374
31
Ranking Based On Selection: 31
Jeff Masek
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,437
17,370
0.553
* Total Citation Counts Rankings
Rankings
20,843
9,710
32
Ranking Based On Selection: 32
David P Bennett
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,757
8,785
0.286
* Total Citation Counts Rankings
Rankings
21,263
9,889
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
30,324
15,464
0.510
* Total Citation Counts Rankings
Rankings
21,372
9,935
34
Ranking Based On Selection: 34
Joseph D Twicken
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30,220
15,683
0.519
Exoplanets
Astronomy
Signal Processing
* Total Citation Counts Rankings
Rankings
21,868
10,152
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
29,781
13,956
0.469
* Total Citation Counts Rankings
Rankings
22,113
10,265
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
29,600
11,316
0.382
Climate Change
Paleoclimate
climate modeling
* Total Citation Counts Rankings
Rankings
22,570
10,468
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
29,227
5,721
0.196
* Total Citation Counts Rankings
Rankings
22,796
10,585
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
29,044
6,416
0.221
* Total Citation Counts Rankings
Rankings
23,640
10,938
39
Ranking Based On Selection: 39
Jay Zwally
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,362
6,668
0.235
* Total Citation Counts Rankings
Rankings
24,024
11,106
40
Ranking Based On Selection: 40
Steven Pawson
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
28,081
13,172
0.469
Earth Science
carbon cycle
ozone
* Total Citation Counts Rankings
Rankings
24,330
11,234
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
27,860
11,923
0.428
remote sensing
climate and air quality
wildfire
volcano
pollution plumes
* Total Citation Counts Rankings
Rankings
24,662
11,383
42
Ranking Based On Selection: 42
Michael Keller
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,585
9,314
0.338
Ecology
tropical forest
Amazon
biogeochemistry
land use change
* Total Citation Counts Rankings
Rankings
24,733
11,416
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
27,523
14,339
0.521
* Total Citation Counts Rankings
Rankings
24,771
11,434
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
27,500
11,040
0.401
* Total Citation Counts Rankings
Rankings
24,784
11,438
45
Ranking Based On Selection: 45
John Ep Connerney
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,489
13,417
0.488
* Total Citation Counts Rankings
Rankings
25,339
11,687
46
Ranking Based On Selection: 46
James E Rhoads
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,079
7,111
0.263
* Total Citation Counts Rankings
Rankings
25,430
11,727
47
Ranking Based On Selection: 47
Michael G Bosilovich
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,022
15,007
0.555
* Total Citation Counts Rankings
Rankings
25,574
11,794
48
Ranking Based On Selection: 48
Hanwant Singh
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,914
3,635
0.135
* Total Citation Counts Rankings
Rankings
25,631
11,820
49
Ranking Based On Selection: 49
David Crisp
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,869
9,503
0.354
Atmospheric physics
radiative transfer
remote sensing
astrobiology
* Total Citation Counts Rankings
Rankings
25,766
11,871
50
Ranking Based On Selection: 50
Colleen A Wilson-Hodge
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,778
14,480
0.541