Citation Rankings
Highly Cited Researchers
Highly Cited Researchers 1.531 Scientists Citation Rankings (Sort by last 6 years Citation Index) - 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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 1
Gravitational Waves
Optical Transients
Gamma-ray Bursts
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137,734
100,236
0.728
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 2
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,853
53,283
0.253
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 3
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,190
45,435
0.708
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 4
Weak Lensing
Cosmology
Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,450
31,701
0.747
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 5
Astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,763
30,112
0.797
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 6
exoplanets planets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,004
29,373
0.481
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 7
Astrophysics
Cosmology
Instrumentation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,725
27,521
0.258
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 8
radiation detection
particle imaging
high energy physics and astronomy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,991
26,112
0.967
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 9
satellite studies of Earth
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,562
25,857
0.265
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 10
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,089
25,570
0.261
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 11
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,766
22,920
0.383
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 12
physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,221
20,742
0.822
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 13
remote sensing
climate
hydrology
ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,602
20,068
0.326
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 14
Hydrology
Remote Sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,027
19,522
0.513
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 15
Hydrology
Climate
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,379
19,440
0.394
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 16
land data assimilation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,570
19,182
0.525
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 17
High Energy Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,482
19,106
0.430
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 18
carbon cycle
remote sensing
electromagnetic theory
forest ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,978
19,088
0.516
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 19
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,850
16,325
0.431
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 20
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
32,979
16,110
0.488
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 21
remote sensing
aerosols
snow
surface reflectance
radiative transfer
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,977
15,723
0.715
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 22
Astrophysics
Machine Learning
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,328
15,294
0.883
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 23
Exoplanets
Astronomy
Signal Processing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
31,569
15,122
0.479
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 24
Exoplanets
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,017
14,993
0.555
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection: 25
Condensed Matter Theory
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,980
14,790
0.871
* Last 6 Years Citation Counts Rankings
Rankings
550
182
1
Ranking Based On Selection: 1
Leo Singer
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137,734
100,236
0.728
Gravitational Waves
Optical Transients
Gamma-ray Bursts
* Last 6 Years Citation Counts Rankings
Rankings
2,325
903
2
Ranking Based On Selection: 2
Regina Caputo
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
210,853
53,283
0.253
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
* Last 6 Years Citation Counts Rankings
Rankings
3,033
1,193
3
Ranking Based On Selection: 3
Benjamin Poulter
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64,190
45,435
0.708
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
* Last 6 Years Citation Counts Rankings
Rankings
5,415
2,164
4
Ranking Based On Selection: 4
Andrés Alejandro Plazas Malagón
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
42,450
31,701
0.747
* Last 6 Years Citation Counts Rankings
Rankings
5,863
2,334
5
Ranking Based On Selection: 5
Miguel De Val-Borro
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,763
30,112
0.797
* Last 6 Years Citation Counts Rankings
Rankings
6,096
2,433
6
Ranking Based On Selection: 6
Jon M Jenkins
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,004
29,373
0.481
* Last 6 Years Citation Counts Rankings
Rankings
6,730
2,695
7
Ranking Based On Selection: 7
Edward J Wollack
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
106,725
27,521
0.258
* Last 6 Years Citation Counts Rankings
Rankings
7,312
2,928
8
Ranking Based On Selection: 8
Amanda L Steinhebel
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
26,991
26,112
0.967
radiation detection
particle imaging
high energy physics and astronomy
* Last 6 Years Citation Counts Rankings
Rankings
7,418
2,975
9
Ranking Based On Selection: 9
Compton J Tucker
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
97,562
25,857
0.265
* Last 6 Years Citation Counts Rankings
Rankings
7,555
3,012
10
Ranking Based On Selection: 10
Brent Holben
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
98,089
25,570
0.261
* Last 6 Years Citation Counts Rankings
Rankings
9,001
3,552
11
Ranking Based On Selection: 11
Eric Vermote
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
59,766
22,920
0.383
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
* Last 6 Years Citation Counts Rankings
Rankings
10,523
4,141
12
Ranking Based On Selection: 12
Vadim N Smelyanskiy
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
25,221
20,742
0.822
* Last 6 Years Citation Counts Rankings
Rankings
11,073
4,375
13
Ranking Based On Selection: 13
Ramakrishna Nemani
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
61,602
20,068
0.326
remote sensing
climate
hydrology
ecology
* Last 6 Years Citation Counts Rankings
Rankings
11,565
4,582
14
Ranking Based On Selection: 14
Matthew Rodell
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
38,027
19,522
0.513
* Last 6 Years Citation Counts Rankings
Rankings
11,631
4,602
15
Ranking Based On Selection: 15
Randal Koster
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
49,379
19,440
0.394
* Last 6 Years Citation Counts Rankings
Rankings
11,860
4,682
16
Ranking Based On Selection: 16
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
* Last 6 Years Citation Counts Rankings
Rankings
11,922
4,710
17
Ranking Based On Selection: 17
Eleonora Troja
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,482
19,106
0.430
* Last 6 Years Citation Counts Rankings
Rankings
11,941
4,713
18
Ranking Based On Selection: 18
Sassan Saatchi
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36,978
19,088
0.516
carbon cycle
remote sensing
electromagnetic theory
forest ecology
* Last 6 Years Citation Counts Rankings
Rankings
15,058
5,943
19
Ranking Based On Selection: 19
Mark Marley
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
37,850
16,325
0.431
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
* Last 6 Years Citation Counts Rankings
Rankings
15,348
6,057
20
Ranking Based On Selection: 20
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
* Last 6 Years Citation Counts Rankings
Rankings
15,923
6,281
21
Ranking Based On Selection: 21
Alexei Lyapustin
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
21,977
15,723
0.715
remote sensing
aerosols
snow
surface reflectance
radiative transfer
* Last 6 Years Citation Counts Rankings
Rankings
16,607
6,535
22
Ranking Based On Selection: 22
Geert Barentsen
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,328
15,294
0.883
* Last 6 Years Citation Counts Rankings
Rankings
16,916
6,644
23
Ranking Based On Selection: 23
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
* Last 6 Years Citation Counts Rankings
Rankings
17,147
6,730
24
Ranking Based On Selection: 24
Tom Barclay
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
27,017
14,993
0.555
* Last 6 Years Citation Counts Rankings
Rankings
17,496
6,873
25
Ranking Based On Selection: 25
Kostyantyn Kechedzhi
NASA Ames Research Center
California, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,980
14,790
0.871