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 Dec 19, 2024, 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 (873.897) 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
astrobiology
geochemistry
Metrics
H-Index
i10 Index
Citation Counts
37
58
4,458
* Total H IndexRankings
Ranking Based On Selection: 2
biogeochemical cycles
stable isotope geochemistry
Precambrian Earth history
astrobiology
Metrics
H-Index
i10 Index
Citation Counts
33
52
4,797
* Total H IndexRankings
Ranking Based On Selection: 3
Haloarchaea
Astrobiology
Extremophile Microbiology
Genomics
Education
Metrics
H-Index
i10 Index
Citation Counts
33
59
3,663
* Total H IndexRankings
Ranking Based On Selection: 4
Astrobiology
Planetary Habitability
Extraterrestrial Life
Environmental Ethics
Space Settlement
Metrics
H-Index
i10 Index
Citation Counts
28
55
2,995
* Total H IndexRankings
Ranking Based On Selection: 5
Astrobiology
Earth Sciences
Planetary science
Geobiology
Aqueous Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
15
17
975
* Total H IndexRankings
Ranking Based On Selection: 6
cosmology
astrobiology
Metrics
H-Index
i10 Index
Citation Counts
14
21
888
* Total H IndexRankings
Ranking Based On Selection: 7
Oceanography
phytoplankton ecology
remote sensing
Metrics
H-Index
i10 Index
Citation Counts
11
11
386
* Total H IndexRankings
Ranking Based On Selection: 8
indoor farming
food safety
bioremediation
microgreens
Metrics
H-Index
i10 Index
Citation Counts
8
5
273
* Total H IndexRankings
Ranking Based On Selection: 9
Metrics
H-Index
i10 Index
Citation Counts
7
7
626
* Total H IndexRankings
Ranking Based On Selection: 10
space radiation
neuroscience
DNA damage
peripheral blood immune cells
miRNA
Metrics
H-Index
i10 Index
Citation Counts
7
6
171
* Total H IndexRankings
Ranking Based On Selection: 11
Geomicrobiology
Astrobiology
Biogeochemistry
Evolution
Health and Nutrition
Metrics
H-Index
i10 Index
Citation Counts
7
4
164
* Total H IndexRankings
Ranking Based On Selection: 12
astrobiology
geochemistry
planetary science
science communication
philosophy
Metrics
H-Index
i10 Index
Citation Counts
4
3
85
* Total H IndexRankings
Ranking Based On Selection: 13
Aerospace Enginnering
Space Applications
Metrics
H-Index
i10 Index
Citation Counts
2
1
26
Kenneth H Williford
Metrics
H-Index
i10-Index
Citation Counts
37
58
4,458
Aubrey Zerkle
Metrics
H-Index
i10-Index
Citation Counts
33
52
4,797
biogeochemical cycles
stable isotope geochemistry
Precambrian Earth history
astrobiology
Priya Dassarma
Metrics
H-Index
i10-Index
Citation Counts
33
59
3,663
Haloarchaea
Astrobiology
Extremophile Microbiology
Genomics
Education
Jacob Haqq-Misra
Metrics
H-Index
i10-Index
Citation Counts
28
55
2,995
Astrobiology
Planetary Habitability
Extraterrestrial Life
Environmental Ethics
Space Settlement
Sanjoy Som
Metrics
H-Index
i10-Index
Citation Counts
15
17
975
Astrobiology
Earth Sciences
Planetary science
Geobiology
Aqueous Geochemistry
Mccullen Sandora
Metrics
H-Index
i10-Index
Citation Counts
14
21
888
Priscila Kienteca Lange
Metrics
H-Index
i10-Index
Citation Counts
11
11
386
Oceanography
phytoplankton ecology
remote sensing
Gina Misra
Metrics
H-Index
i10-Index
Citation Counts
8
5
273
Connie Tsai
Metrics
H-Index
i10-Index
Citation Counts
7
7
626
Kira Da Rienecker|Kira D. Rienecker, Kira Rienecker
Metrics
H-Index
i10-Index
Citation Counts
7
6
171
space radiation
neuroscience
DNA damage
peripheral blood immune cells
miRNA
Anindita Das
Metrics
H-Index
i10-Index
Citation Counts
7
4
164
Geomicrobiology
Astrobiology
Biogeochemistry
Evolution
Health and Nutrition
Graham Lau
Metrics
H-Index
i10-Index
Citation Counts
4
3
85
astrobiology
geochemistry
planetary science
science communication
philosophy
Satyam Tiwari
Metrics
H-Index
i10-Index
Citation Counts
2
1
26
Aerospace Enginnering
Space Applications