University, Subject, Country, Region, World
NASA Ames Research Center 1.526 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Feb 03, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (870.057) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
Metrics
H-Index
i10 Index
Citation Counts
219
619
210,853
* Total H IndexRankings
Ranking Based On Selection: 2
Metrics
H-Index
i10 Index
Citation Counts
141
468
98,089
* Total H IndexRankings
Ranking Based On Selection: 3
satellite studies of Earth
Metrics
H-Index
i10 Index
Citation Counts
135
291
97,562
* Total H IndexRankings
Ranking Based On Selection: 4
exoplanets planets
Metrics
H-Index
i10 Index
Citation Counts
123
460
61,004
* Total H IndexRankings
Ranking Based On Selection: 5
Gravitational Waves
Optical Transients
Gamma-ray Bursts
Metrics
H-Index
i10 Index
Citation Counts
118
259
137,734
* Total H IndexRankings
Ranking Based On Selection: 6
Astrophysics
Cosmology
Instrumentation
Metrics
H-Index
i10 Index
Citation Counts
106
411
106,725
* Total H IndexRankings
Ranking Based On Selection: 7
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
Metrics
H-Index
i10 Index
Citation Counts
103
308
64,190
* Total H IndexRankings
Ranking Based On Selection: 8
Nanotechnology
nano materials
nanosensors
nanoelectronics
Metrics
H-Index
i10 Index
Citation Counts
103
426
41,096
* Total H IndexRankings
Ranking Based On Selection: 9
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
Metrics
H-Index
i10 Index
Citation Counts
101
233
54,755
* Total H IndexRankings
Ranking Based On Selection: 10
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
Metrics
H-Index
i10 Index
Citation Counts
100
308
37,850
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
* Total H IndexRankings
Ranking Based On Selection: 11
remote sensing
climate
hydrology
ecology
Metrics
H-Index
i10 Index
Citation Counts
100
229
61,602
* Total H IndexRankings
Ranking Based On Selection: 12
Weak Lensing
Cosmology
Instrumentation
Metrics
H-Index
i10 Index
Citation Counts
99
383
42,450
* Total H IndexRankings
Ranking Based On Selection: 13
carbon cycle
remote sensing
electromagnetic theory
forest ecology
Metrics
H-Index
i10 Index
Citation Counts
97
261
36,978
* Total H IndexRankings
Ranking Based On Selection: 14
High Energy Astrophysics
Metrics
H-Index
i10 Index
Citation Counts
97
208
44,482
* Total H IndexRankings
Ranking Based On Selection: 15
electromagnetic scattering
radiative transfer
atmospheric radiation
light scattering
polarimetry
Metrics
H-Index
i10 Index
Citation Counts
95
300
40,736
* Total H IndexRankings
Ranking Based On Selection: 16
Hydrology
Climate
Metrics
H-Index
i10 Index
Citation Counts
94
198
49,379
* Total H IndexRankings
Ranking Based On Selection: 17
Atmospheric Chemistry
Metrics
H-Index
i10 Index
Citation Counts
94
254
27,448
* Total H IndexRankings
Ranking Based On Selection: 18
Climate Dynamics
Predictability
Earth System Processes
Metrics
H-Index
i10 Index
Citation Counts
93
266
28,682
* Total H IndexRankings
Ranking Based On Selection: 19
Metrics
H-Index
i10 Index
Citation Counts
93
305
31,511
* Total H IndexRankings
Ranking Based On Selection: 20
astronomy
star formation
Metrics
H-Index
i10 Index
Citation Counts
93
386
32,799
* Total H IndexRankings
Ranking Based On Selection: 21
Remote Sensing
Aerosol Optical Properties
Atmospheric Science
Metrics
H-Index
i10 Index
Citation Counts
92
172
49,411
* Total H IndexRankings
Ranking Based On Selection: 22
Astronomy
Metrics
H-Index
i10 Index
Citation Counts
92
247
29,719
* Total H IndexRankings
Ranking Based On Selection: 23
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
Metrics
H-Index
i10 Index
Citation Counts
90
179
59,766
* Total H IndexRankings
Ranking Based On Selection: 24
atmospheric science
clouds
remote sensing
Metrics
H-Index
i10 Index
Citation Counts
89
354
34,335
* Total H IndexRankings
Ranking Based On Selection: 25
Climate Change
Paleoclimate
climate modeling
Metrics
H-Index
i10 Index
Citation Counts
88
182
30,826
Regina Caputo
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
219
619
210,853
Dark Matter
gamma-ray astrophysics
multimessenger astrophysics
Brent Holben
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
141
468
98,089
Compton J Tucker
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
135
291
97,562
Jon M Jenkins
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
123
460
61,004
Leo Singer
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
118
259
137,734
Gravitational Waves
Optical Transients
Gamma-ray Bursts
Edward J Wollack
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
106
411
106,725
Benjamin Poulter
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
103
308
64,190
Carbon cycle
greenhouse gases
global change
remote sensing
Earth system modeling
M Meyyappan
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
103
426
41,096
Nanotechnology
nano materials
nanosensors
nanoelectronics
David Rind
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
101
233
54,755
Climate Change
Atmospheric Dynamics
Stratosphere
Paleoclimate
Hydrology
Mark Marley
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
100
308
37,850
planetary science
brown dwarfs
planetary atmospheres
exoplanets
extrasolar planets
Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast!
Ramakrishna Nemani
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
100
229
61,602
remote sensing
climate
hydrology
ecology
Andrés Alejandro Plazas Malagón
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
99
383
42,450
Sassan Saatchi
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
97
261
36,978
carbon cycle
remote sensing
electromagnetic theory
forest ecology
Eleonora Troja
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
97
208
44,482
Michael Mishchenko
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
95
300
40,736
electromagnetic scattering
radiative transfer
atmospheric radiation
light scattering
polarimetry
Randal Koster
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
94
198
49,379
Hanwant Singh
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
94
254
27,448
Duane Waliser
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
93
266
28,682
David P Bennett
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
93
305
31,511
Paul Goldsmith
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
93
386
32,799
Thomas Eck
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
92
172
49,411
Remote Sensing
Aerosol Optical Properties
Atmospheric Science
Karl Stapelfeldt
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
92
247
29,719
Eric Vermote
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
90
179
59,766
Radiative transfer
Remote Sensing
Agriculture monitoring from Remote Sensing
Patrick Minnis
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
89
354
34,335
atmospheric science
clouds
remote sensing
Gavin Schmidt
NASA Ames Research Center
California, United States
Metrics
H-Index
i10-Index
Citation Counts
88
182
30,826
Climate Change
Paleoclimate
climate modeling