Rankings for Scientist

More Than a Ranking

NASA Ames Research Center Scientists Natural Sciences / Biological Science Rankings 2024

Welcome to AD Scientific Index. The international independent ranking organisation AD Scientific Index is more than an ordinary "Ranking". The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index", "total i10 Productivity index", "last 6 years i10 Productivity index", "total citations" and "last 6 years citations" only in "AD Scientific Index". See also: Subject Rankings, University Subject Rankings and  Universities Rankings.   Click here for individual or institutional registration.

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Total 26 scientist
* Total H IndexRankings
World Rank
10,405
Country Rank
4,765
Institution Rank : 14
United States
Sassan Saatchi
Sassan Saatchi
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
carbon cycle
remote sensing
electromagnetic theory
forest ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
71
0.747
See All Rankings and Analysis
* Total H IndexRankings
World Rank
16,449
Country Rank
7,337
Institution Rank : 31
United States
Michael Keller
Michael Keller
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Ecology
tropical forest
Amazon
biogeochemistry
land use change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
84
52
0.619
See All Rankings and Analysis
* Total H IndexRankings
World Rank
110,928
Country Rank
39,640
Institution Rank : 256
United States
Brad Bebout
Brad Bebout
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Microbial Ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
21
0.477
See All Rankings and Analysis
* Total H IndexRankings
World Rank
281,979
Country Rank
86,495
Institution Rank : 551
United States
Chien-Ting Chen
Chien-Ting Chen
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
AGN
galaxy evolution
black hole physics
large scale structure
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
25
0.926
See All Rankings and Analysis
* Total H IndexRankings
World Rank
284,645
Country Rank
87,221
Institution Rank : 555
United States
Ryan Pavlick
Ryan Pavlick
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Earth System Science
Remote Sensing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
See All Rankings and Analysis
* Total H IndexRankings
World Rank
320,177
Country Rank
96,178
Institution Rank : 603
United States
Fabian D Schneider
Fabian D Schneider
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
biodiversity
laser scanning
imaging spectroscopy
process-based modeling
forest ecosystems
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
25
24
0.960
See All Rankings and Analysis
* Total H IndexRankings
World Rank
361,782
Country Rank
106,729
Institution Rank : 659
United States
Paul Schmalzer
Paul Schmalzer
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Plant Ecology
Fire Ecology
Florida scrub
rare plants
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
24
10
0.417
See All Rankings and Analysis
* Total H IndexRankings
World Rank
407,359
Country Rank
118,274
Institution Rank : 728
United States
Yen-Ben Cheng
Yen-Ben Cheng
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
ecology
agriculture
remote sensing
climate change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
22
15
0.682
See All Rankings and Analysis
* Total H IndexRankings
World Rank
441,023
Country Rank
126,841
Institution Rank : 776
United States
Ken Cullings
Ken Cullings
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Ecology and evolution
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
21
11
0.524
See All Rankings and Analysis
* Total H IndexRankings
World Rank
444,200
Country Rank
127,688
Institution Rank : 784
United States
Ramesh Mainali
Ramesh Mainali
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
High-redshift galaxies
Galaxy Evolution
Reionization
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
See All Rankings and Analysis
* Total H IndexRankings
World Rank
450,812
Country Rank
129,393
Institution Rank : 794
United States
Fathi Karouia
Fathi Karouia
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Space Biology
Biotechnology
Human Spaceflight
Astronaut Health and Performance
Astrobiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
See All Rankings and Analysis
* Total H IndexRankings
World Rank
463,369
Country Rank
132,546
Institution Rank : 806
United States
Craig Everroad
Craig Everroad
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Microbiology
Evolution
Astrobiology
Space Biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
See All Rankings and Analysis
* Total H IndexRankings
World Rank
505,704
Country Rank
142,908
Institution Rank : 866
United States
Thomas Dreschel
Thomas Dreschel
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Space Biology
Ecology
LASSO Contract
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
19
9
0.474
See All Rankings and Analysis
* Total H IndexRankings
World Rank
536,629
Country Rank
150,624
Institution Rank : 914
United States
Eric Stolen
Eric Stolen
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Wildllife Ecology
quantitative ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
18
12
0.667
See All Rankings and Analysis
* Total H IndexRankings
World Rank
576,416
Country Rank
160,467
Institution Rank : 973
United States
Matthew Fladeland
Matthew Fladeland
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Airborne Science
Forest Ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
17
11
0.647
See All Rankings and Analysis
* Total H IndexRankings
World Rank
584,100
Country Rank
162,426
Institution Rank : 982
United States
K Dana Chadwick
K Dana Chadwick
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Landscape Biogeochemistry
Ecosystem Ecology
Remote Sensing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
See All Rankings and Analysis
* Total H IndexRankings
World Rank
642,814
Country Rank
177,124
Institution Rank : 1,064
United States
Sigrid Reinsch
Sigrid Reinsch
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Space Biology
Cell and Developmental Biology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
15
13
0.867
See All Rankings and Analysis
* Total H IndexRankings
World Rank
670,688
Country Rank
183,833
Institution Rank : 1,084
United States
Alexey Shiklomanov
Alexey Shiklomanov
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Remote sensing
forest ecology
ecosystem modeling
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
See All Rankings and Analysis
* Total H IndexRankings
World Rank
745,280
Country Rank
201,951
Institution Rank : 1,211
United States
Keith Gaddis
Keith Gaddis
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Ecology
Evolution
Landscape genetics
Remote sensing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
See All Rankings and Analysis
* Total H IndexRankings
World Rank
750,604
Country Rank
202,977
Institution Rank : 1,215
United States
Arsev Umur Aydinoğlu
Arsev Umur Aydinoğlu
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
interdisciplinary collaboration
emergence
research data management
qualitative research
astrobiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
See All Rankings and Analysis
* Total H IndexRankings
World Rank
753,416
Country Rank
203,709
Institution Rank : 1,217
United States
Naiara Pinto
Naiara Pinto
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Remote Sensing
Landscape Ecology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
See All Rankings and Analysis
* Total H IndexRankings
World Rank
798,596
Country Rank
214,118
Institution Rank : 1,260
United States
Emil A Cherrington
Emil A Cherrington
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
ecology
forests
land cover change
remote sensing
earth system science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
See All Rankings and Analysis
* Total H IndexRankings
World Rank
801,573
Country Rank
215,042
Institution Rank : 1,264
United States
Yoseline Angel Lopez
Yoseline Angel Lopez
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Remote sensing
Hyperspectral
Terrestrial ecology
Agriculture
Geodesy
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
See All Rankings and Analysis
* Total H IndexRankings
World Rank
839,635
Country Rank
223,414
Institution Rank : 1,310
United States
Jessica Audrey Lee
Jessica Audrey Lee
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
microbial ecology and evolution
complex systems science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
See All Rankings and Analysis
* Total H IndexRankings
World Rank
844,144
Country Rank
224,436
Institution Rank : 1,317
United States
Armaghan Abed-Elmdoust
Armaghan Abed-Elmdoust
NASA Ames Research Center
California , United States
Natural Sciences / Biological Science
Hydrological modeling
Landscape evolution
Water Resources Management
Game Theory
River Networks
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
See All Rankings and Analysis
* Total H Index Rankings
Rankings
10,405
United States
4,765
14
Sassan Saatchi
Sassan Saatchi
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
71
0.747
Natural Sciences / Biological Science
carbon cycle
remote sensing
electromagnetic theory
forest ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
16,449
United States
7,337
31
Michael Keller
Michael Keller
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
84
52
0.619
Natural Sciences / Biological Science
Ecology
tropical forest
Amazon
biogeochemistry
land use change
See All Rankings and Analysis
* Total H Index Rankings
Rankings
110,928
United States
39,640
256
Brad Bebout
Brad Bebout
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
44
21
0.477
Natural Sciences / Biological Science
Microbial Ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
281,979
United States
86,495
551
Chien-Ting Chen
Chien-Ting Chen
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
25
0.926
Natural Sciences / Biological Science
AGN
galaxy evolution
black hole physics
large scale structure
See All Rankings and Analysis
* Total H Index Rankings
Rankings
284,645
United States
87,221
555
Ryan Pavlick
Ryan Pavlick
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
27
24
0.889
Natural Sciences / Biological Science
Earth System Science
Remote Sensing
See All Rankings and Analysis
* Total H Index Rankings
Rankings
320,177
United States
96,178
603
Fabian D Schneider
Fabian D Schneider
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
25
24
0.960
Natural Sciences / Biological Science
biodiversity
laser scanning
imaging spectroscopy
process-based modeling
forest ecosystems
See All Rankings and Analysis
* Total H Index Rankings
Rankings
361,782
United States
106,729
659
Paul Schmalzer
Paul Schmalzer
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
24
10
0.417
Natural Sciences / Biological Science
Plant Ecology
Fire Ecology
Florida scrub
rare plants
See All Rankings and Analysis
* Total H Index Rankings
Rankings
407,359
United States
118,274
728
Yen-Ben Cheng
Yen-Ben Cheng
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
22
15
0.682
Natural Sciences / Biological Science
ecology
agriculture
remote sensing
climate change
See All Rankings and Analysis
* Total H Index Rankings
Rankings
441,023
United States
126,841
776
Ken Cullings
Ken Cullings
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
21
11
0.524
Natural Sciences / Biological Science
Ecology and evolution
See All Rankings and Analysis
* Total H Index Rankings
Rankings
444,200
United States
127,688
784
Ramesh Mainali
Ramesh Mainali
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
20
1.000
Natural Sciences / Biological Science
High-redshift galaxies
Galaxy Evolution
Reionization
See All Rankings and Analysis
* Total H Index Rankings
Rankings
450,812
United States
129,393
794
Fathi Karouia
Fathi Karouia
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
18
0.900
Natural Sciences / Biological Science
Space Biology
Biotechnology
Human Spaceflight
Astronaut Health and Performance
Astrobiology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
463,369
United States
132,546
806
Craig Everroad
Craig Everroad
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
20
15
0.750
Natural Sciences / Biological Science
Microbiology
Evolution
Astrobiology
Space Biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
505,704
United States
142,908
866
Thomas Dreschel
Thomas Dreschel
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
19
9
0.474
Natural Sciences / Biological Science
Space Biology
Ecology
LASSO Contract
See All Rankings and Analysis
* Total H Index Rankings
Rankings
536,629
United States
150,624
914
Eric Stolen
Eric Stolen
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
18
12
0.667
Natural Sciences / Biological Science
Wildllife Ecology
quantitative ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
576,416
United States
160,467
973
Matthew Fladeland
Matthew Fladeland
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
17
11
0.647
Natural Sciences / Biological Science
Airborne Science
Forest Ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
584,100
United States
162,426
982
K Dana Chadwick
K Dana Chadwick
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Natural Sciences / Biological Science
Landscape Biogeochemistry
Ecosystem Ecology
Remote Sensing
See All Rankings and Analysis
* Total H Index Rankings
Rankings
642,814
United States
177,124
1,064
Sigrid Reinsch
Sigrid Reinsch
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
15
13
0.867
Natural Sciences / Biological Science
Space Biology
Cell and Developmental Biology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
670,688
United States
183,833
1,084
Alexey Shiklomanov
Alexey Shiklomanov
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
14
14
1.000
Natural Sciences / Biological Science
Remote sensing
forest ecology
ecosystem modeling
See All Rankings and Analysis
* Total H Index Rankings
Rankings
745,280
United States
201,951
1,211
Keith Gaddis
Keith Gaddis
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
11
0.846
Natural Sciences / Biological Science
Ecology
Evolution
Landscape genetics
Remote sensing
See All Rankings and Analysis
* Total H Index Rankings
Rankings
750,604
United States
202,977
1,215
Arsev Umur Aydinoğlu
Arsev Umur Aydinoğlu
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
Natural Sciences / Biological Science
interdisciplinary collaboration
emergence
research data management
qualitative research
astrobiology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
753,416
United States
203,709
1,217
Naiara Pinto
Naiara Pinto
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
13
10
0.769
Natural Sciences / Biological Science
Remote Sensing
Landscape Ecology
See All Rankings and Analysis
* Total H Index Rankings
Rankings
798,596
United States
214,118
1,260
Emil A Cherrington
Emil A Cherrington
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
Natural Sciences / Biological Science
ecology
forests
land cover change
remote sensing
earth system science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
801,573
United States
215,042
1,264
Yoseline Angel Lopez
Yoseline Angel Lopez
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
12
10
0.833
Natural Sciences / Biological Science
Remote sensing
Hyperspectral
Terrestrial ecology
Agriculture
Geodesy
See All Rankings and Analysis
* Total H Index Rankings
Rankings
839,635
United States
223,414
1,310
Jessica Audrey Lee
Jessica Audrey Lee
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
Natural Sciences / Biological Science
microbial ecology and evolution
complex systems science
See All Rankings and Analysis
* Total H Index Rankings
Rankings
844,144
United States
224,436
1,317
Armaghan Abed-Elmdoust
Armaghan Abed-Elmdoust
NASA Ames Research Center California, United States United States
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
11
10
0.909
Natural Sciences / Biological Science
Hydrological modeling
Landscape evolution
Water Resources Management
Game Theory
River Networks
See All Rankings and Analysis