i10 Productivity
Rankings

NASA Ames Research Center 35 Scientists Natural Sciences / Chemical Sciences i10 Productivity Rankings - 2025

Total 2,453,121 scientists, country 221, and institutions 24,478 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:

  • Gain full access to detailed comparisons and advanced analytics,
  • Objectively evaluate your academic productivity,
  • Make strategic, data-driven decisions to enhance performance.

* Total i10 IndexRankings
Ranking Based On Selection: 1
United States
Timothy J Lee
chemistry
physics
astrochemistry
theoretical chemistry
spectroscopy
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
272
134
0.493
* Total i10 IndexRankings
Ranking Based On Selection: 2
United States
Hanwant Singh
Atmospheric Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
83
0.327
* Total i10 IndexRankings
Ranking Based On Selection: 3
United States
Stanley P Sander
atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
58
0.384
* Total i10 IndexRankings
Ranking Based On Selection: 4
United States
John B Nowak
Ammonia
Air Quality
Tropospheric Chemistry
Chemical Ionization Mass Spectrometry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
122
101
0.828
* Total i10 IndexRankings
Ranking Based On Selection: 5
United States
Luke D Oman
Chemistry-Climate Modeling
Ozone
Stratospheric Chemistry
Volcanic Eruptions and Climate
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
108
92
0.852
* Total i10 IndexRankings
Ranking Based On Selection: 6
United States
Nathan Jacobson
High temperature chemistry
chemical thermodynamics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
56
0.533
* Total i10 IndexRankings
Ranking Based On Selection: 7
United States
Perry Gerakines
Astrochemistry
Chemistry
Astrobiology
Planetary Science
Radiation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
51
0.729
* Total i10 IndexRankings
Ranking Based On Selection: 8
United States
Mathieu Choukroun
planetary science
physical chemistry
physical properties of ices
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
61
0.897
* Total i10 IndexRankings
Ranking Based On Selection: 9
United States
Can Li
Atmospheric Chemistry
Air Pollution
Remote Sensing
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
62
0.925
* Total i10 IndexRankings
Ranking Based On Selection: 10
United States
Peter A Willis
Astrobiology
Planetary Science
Analytical Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
43
0.717

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* Total i10 IndexRankings
Ranking Based On Selection: 11
United States
Sarah Strode
chemistry-climate interactions
trends in atmospheric pollutants
atmospheric chemistry modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
52
0.897
* Total i10 IndexRankings
Ranking Based On Selection: 12
United States
José Carlos Aponte
Astrochemistry
Organic Chemistry
Natural Products
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
40
0.816
* Total i10 IndexRankings
Ranking Based On Selection: 13
United States
James Gleason
Atmospheric Chemistry
Satellite Remote Sensing of Trace Gases
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
24
0.533
* Total i10 IndexRankings
Ranking Based On Selection: 14
United States
Jin Liao
Atmospheric Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
37
0.902
* Total i10 IndexRankings
Ranking Based On Selection: 15
United States
Partha P Bera
chemistry
atmospheric sciences
quantum chemistry
astrochemistry
astrobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
25
0.676
* Total i10 IndexRankings
Ranking Based On Selection: 16
United States
Frank L Palmieri
surface engineering
thermal materials
battery architecture
bonding
structural composite
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
22
0.595
* Total i10 IndexRankings
Ranking Based On Selection: 17
United States
Katherine Travis
Atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
* Total i10 IndexRankings
Ranking Based On Selection: 18
United States
Hannah S Halliday
Atmospheric Chemistry
In-situ measurements
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
* Total i10 IndexRankings
Ranking Based On Selection: 19
United States
William T Wallace
Environmental chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
16
0.615
* Total i10 IndexRankings
Ranking Based On Selection: 20
United States
Emma Yates
Atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
16
0.640
* Total i10 IndexRankings
Ranking Based On Selection: 21
United States
Edith Fayolle
Chemistry in the Solar System and planet-forming regions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
* Total i10 IndexRankings
Ranking Based On Selection: 22
United States
Travis N Knepp
Atmospheric chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
21
0.913
* Total i10 IndexRankings
Ranking Based On Selection: 23
United States
Mauro S Ferreira Santos
Electroanalytical Chemistry
Separation Science
Microfluidic Devices
Analytical Instrumentation
Astrobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
* Total i10 IndexRankings
Ranking Based On Selection: 24
United States
Alexander A Bol'Shakov
Laser ablation
LIBS
Plasma Physics
Analytical Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
15
0.714
* Total i10 IndexRankings
Ranking Based On Selection: 25
United States
Jurij Simcic
Mass spectrometry
quadrupole ion trap
planetary atmospheres
ice giants
gas giants
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
6
0.333
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 1
Timothy J Lee
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
272
134
0.493
chemistry
physics
astrochemistry
theoretical chemistry
spectroscopy
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 2
Hanwant Singh
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
254
83
0.327
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 3
Stanley P Sander
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
151
58
0.384
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 4
John B Nowak
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
122
101
0.828
Ammonia
Air Quality
Tropospheric Chemistry
Chemical Ionization Mass Spectrometry
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 5
Luke D Oman
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
108
92
0.852
Chemistry-Climate Modeling
Ozone
Stratospheric Chemistry
Volcanic Eruptions and Climate
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 6
Nathan Jacobson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
105
56
0.533
High temperature chemistry
chemical thermodynamics
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 7
Perry Gerakines
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
70
51
0.729
Astrochemistry
Chemistry
Astrobiology
Planetary Science
Radiation
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 8
Mathieu Choukroun
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
61
0.897
planetary science
physical chemistry
physical properties of ices
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 9
Can Li
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
67
62
0.925
Atmospheric Chemistry
Air Pollution
Remote Sensing
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 10
Peter A Willis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
43
0.717
Astrobiology
Planetary Science
Analytical Chemistry

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 i10 Index Rankings
Rankings
Ranking Based On Selection: 11
Sarah Strode
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
52
0.897
chemistry-climate interactions
trends in atmospheric pollutants
atmospheric chemistry modeling
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 12
José Carlos Aponte
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
40
0.816
Astrochemistry
Organic Chemistry
Natural Products
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 13
James Gleason
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
45
24
0.533
Atmospheric Chemistry
Satellite Remote Sensing of Trace Gases
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 14
Jin Liao
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
41
37
0.902
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 15
Partha P Bera
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
25
0.676
chemistry
atmospheric sciences
quantum chemistry
astrochemistry
astrobiology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 16
Frank L Palmieri
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
37
22
0.595
surface engineering
thermal materials
battery architecture
bonding
structural composite
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 17
Katherine Travis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
32
31
0.969
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 18
Hannah S Halliday
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
30
28
0.933
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 19
William T Wallace
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
26
16
0.615
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 20
Emma Yates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
25
16
0.640
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 21
Edith Fayolle
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
22
0.957
Chemistry in the Solar System and planet-forming regions
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 22
Travis N Knepp
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
23
21
0.913
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 23
Mauro S Ferreira Santos
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
17
0.810
Electroanalytical Chemistry
Separation Science
Microfluidic Devices
Analytical Instrumentation
Astrobiology
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 24
Alexander A Bol'Shakov
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
21
15
0.714
Laser ablation
LIBS
Plasma Physics
Analytical Chemistry
* Total i10 Index Rankings
Rankings
Ranking Based On Selection: 25
Jurij Simcic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
18
6
0.333
Mass spectrometry
quadrupole ion trap
planetary atmospheres
ice giants
gas giants
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