Citation Rankings
Highly Cited Researchers
NASA Ames Research Center 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
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,170
67,879
0.326
* Total Citation Counts Rankings
Ranking Based On Selection :2
Gravitational Waves
Optical Transients
Gamma-ray Bursts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
132,951
108,272
0.814
* Total Citation Counts Rankings
Ranking Based On Selection :3
Astrophysics
Cosmology
Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,559
30,569
0.290
* Total Citation Counts Rankings
Ranking Based On Selection :4
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,214
29,819
0.307
* Total Citation Counts Rankings
Ranking Based On Selection :5
satellite studies of Earth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,440
29,866
0.310
* Total Citation Counts Rankings
Ranking Based On Selection :6
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,778
47,691
0.772
* Total Citation Counts Rankings
Ranking Based On Selection :7
remote sensing
climate
hydrology
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,727
22,688
0.374
* Total Citation Counts Rankings
Ranking Based On Selection :8
Scientific Visualization
Informal Science Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,117
13,809
0.230
* Total Citation Counts Rankings
Ranking Based On Selection :9
exoplanets planets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,842
31,631
0.529
* Total Citation Counts Rankings
Ranking Based On Selection :10
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,756
26,091
0.444
* Total Citation Counts Rankings
Ranking Based On Selection :11
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,383
10,966
0.202
* Total Citation Counts Rankings
Ranking Based On Selection :12
Remote Sensing
Aerosol Optical Properties
Atmospheric Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,011
15,663
0.320
* Total Citation Counts Rankings
Ranking Based On Selection :13
Hydrology
Climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,575
22,266
0.458
* Total Citation Counts Rankings
Ranking Based On Selection :14
climate change
global sea ice
satellite remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,779
16,220
0.362
* Total Citation Counts Rankings
Ranking Based On Selection :15
Radiative Transfer
Atmospheric Radiation
Remote Sensing
Climate Change
Climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,993
9,396
0.214
* Total Citation Counts Rankings
Ranking Based On Selection :16
High Energy Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,792
22,807
0.521
* Total Citation Counts Rankings
Ranking Based On Selection :17
Weak Lensing
Cosmology
Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,919
34,624
0.846
* Total Citation Counts Rankings
Ranking Based On Selection :18
Nanotechnology
nano materials
nanosensors
nanoelectronics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,647
12,572
0.309
* Total Citation Counts Rankings
Ranking Based On Selection :19
electromagnetic scattering
radiative transfer
atmospheric radiation
light scattering
polarimetry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,403
11,037
0.273
* Total Citation Counts Rankings
Ranking Based On Selection :20
Sunphotometry
atmospheric aerosols
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,339
12,804
0.343
* Total Citation Counts Rankings
Ranking Based On Selection :21
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,244
17,921
0.481
* Total Citation Counts Rankings
Ranking Based On Selection :22
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,117
14,108
0.380
* Total Citation Counts Rankings
Ranking Based On Selection :23
Hydrology
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,034
21,599
0.583
* Total Citation Counts Rankings
Ranking Based On Selection :24
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,112
30,993
0.858
* Total Citation Counts Rankings
Ranking Based On Selection :25
carbon cycle
remote sensing
electromagnetic theory
forest ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,995
20,714
0.575
* Total Citation Counts Rankings
Rankings
730
291
1
Ranking Based On Selection: 1
Regina Caputo
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
208,170
67,879
0.326
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
* Total Citation Counts Rankings
Rankings
1,802
812
2
Ranking Based On Selection: 2
Leo Singer
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
132,951
108,272
0.814
Gravitational Waves
Optical Transients
Gamma-ray Bursts
* Total Citation Counts Rankings
Rankings
2,806
1,335
3
Ranking Based On Selection: 3
Edward J Wollack
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
105,559
30,569
0.290
* Total Citation Counts Rankings
Rankings
3,298
1,578
4
Ranking Based On Selection: 4
Brent Holben
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,214
29,819
0.307
* Total Citation Counts Rankings
Rankings
3,350
1,602
5
Ranking Based On Selection: 5
Compton J Tucker
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
96,440
29,866
0.310
* Total Citation Counts Rankings
Rankings
7,136
3,388
6
Ranking Based On Selection: 6
Benjamin Poulter
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,778
47,691
0.772
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
* Total Citation Counts Rankings
Rankings
7,322
3,472
7
Ranking Based On Selection: 7
Ramakrishna Nemani
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,727
22,688
0.374
remote sensing
climate
hydrology
ecology
* Total Citation Counts Rankings
Rankings
7,430
3,527
8
Ranking Based On Selection: 8
Mark U Subbarao
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
60,117
13,809
0.230
Scientific Visualization
Informal Science Education
* Total Citation Counts Rankings
Rankings
7,486
3,557
9
Ranking Based On Selection: 9
Jon M Jenkins
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,842
31,631
0.529
* Total Citation Counts Rankings
Rankings
7,714
3,666
10
Ranking Based On Selection: 10
Eric Vermote
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
58,756
26,091
0.444
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
* Total Citation Counts Rankings
Rankings
8,753
4,180
11
Ranking Based On Selection: 11
David Rind
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
54,383
10,966
0.202
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
* Total Citation Counts Rankings
Rankings
10,325
4,919
12
Ranking Based On Selection: 12
Thomas Eck
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,011
15,663
0.320
Remote Sensing
Aerosol Optical Properties
Atmospheric Science
* Total Citation Counts Rankings
Rankings
10,453
4,985
13
Ranking Based On Selection: 13
Randal Koster
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
48,575
22,266
0.458
* Total Citation Counts Rankings
Rankings
11,910
5,661
14
Ranking Based On Selection: 14
Josefino Comiso
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,779
16,220
0.362
climate change
global sea ice
satellite remote sensing
* Total Citation Counts Rankings
Rankings
12,242
5,817
15
Ranking Based On Selection: 15
Andrew A Lacis
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,993
9,396
0.214
Radiative Transfer
Atmospheric Radiation
Remote Sensing
Climate Change
Climate
* Total Citation Counts Rankings
Rankings
12,332
5,859
16
Ranking Based On Selection: 16
Eleonora Troja
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43,792
22,807
0.521
* Total Citation Counts Rankings
Rankings
13,771
6,513
17
Ranking Based On Selection: 17
Andrés Alejandro Plazas Malagón
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,919
34,624
0.846
* Total Citation Counts Rankings
Rankings
13,907
6,575
18
Ranking Based On Selection: 18
M Meyyappan
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,647
12,572
0.309
Nanotechnology
nano materials
nanosensors
nanoelectronics
* Total Citation Counts Rankings
Rankings
14,050
6,640
19
Ranking Based On Selection: 19
Michael Mishchenko
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
40,403
11,037
0.273
electromagnetic scattering
radiative transfer
atmospheric radiation
light scattering
polarimetry
* Total Citation Counts Rankings
Rankings
15,943
7,506
20
Ranking Based On Selection: 20
Alexander Smirnov
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,339
12,804
0.343
* Total Citation Counts Rankings
Rankings
16,006
7,535
21
Ranking Based On Selection: 21
Mark Marley
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,244
17,921
0.481
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
* Total Citation Counts Rankings
Rankings
16,092
7,576
22
Ranking Based On Selection: 22
Steve Bryson
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,117
14,108
0.380
* Total Citation Counts Rankings
Rankings
16,149
7,601
23
Ranking Based On Selection: 23
Matthew Rodell
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,034
21,599
0.583
* Total Citation Counts Rankings
Rankings
16,780
7,893
24
Ranking Based On Selection: 24
Miguel De Val-Borro
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,112
30,993
0.858
* Total Citation Counts Rankings
Rankings
16,867
7,933
25
Ranking Based On Selection: 25
Sassan Saatchi
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
35,995
20,714
0.575
carbon cycle
remote sensing
electromagnetic theory
forest ecology