Subject Rankings

Institute of Space Science 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 yearsAs of Dec 19, 2024, the rankings are determined according to the Total H IndexBETA 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: 2
Rajesh Vj
Petrology
Mineralogy
Planetary Geology
Terrestrial Analogues of Moon/Mars
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,132
* Total H IndexRankings
Ranking Based On Selection: 3
Sanjoy Som
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: 4
Anindita Das
Geomicrobiology
Astrobiology
Biogeochemistry
Evolution
Health and Nutrition
Metrics
H-Index
i10 Index
Citation Counts
7
4
164
* Total H IndexRankings
Ranking Based On Selection: 5
Graham Lau
astrobiology
geochemistry
planetary science
science communication
philosophy
Metrics
H-Index
i10 Index
Citation Counts
4
3
85
* Total H IndexRankings
Ranking Based On Selection: 7
Thesniya Pm
Geology of the Moon
Planetary Geoscience
Mineralogy
Remote sensing and geological applications
Metrics
H-Index
i10 Index
Citation Counts
3
0
26
* Total H IndexRankings
Ranking Based On Selection: 8
Haritha A
Planetary analogue research
Spectroscopic analyses
Geochemistry
Ultramafics and associated carbonates
Metrics
H-Index
i10 Index
Citation Counts
2
0
5
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Kenneth H Williford
Metrics
H-Index
i10-Index
Citation Counts
37
58
4,458
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Rajesh Vj
Metrics
H-Index
i10-Index
Citation Counts
16
23
1,132
Petrology
Mineralogy
Planetary Geology
Terrestrial Analogues of Moon/Mars
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Sanjoy Som
Metrics
H-Index
i10-Index
Citation Counts
15
17
975
Astrobiology
Earth Sciences
Planetary science
Geobiology
Aqueous Geochemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Anindita Das
Metrics
H-Index
i10-Index
Citation Counts
7
4
164
Geomicrobiology
Astrobiology
Biogeochemistry
Evolution
Health and Nutrition
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Graham Lau
Metrics
H-Index
i10-Index
Citation Counts
4
3
85
astrobiology
geochemistry
planetary science
science communication
philosophy
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Mahima Singh
Metrics
H-Index
i10-Index
Citation Counts
3
2
38
Planetary geosciences
Geochemistry
Sedimentology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Thesniya Pm
Metrics
H-Index
i10-Index
Citation Counts
3
0
26
Geology of the Moon
Planetary Geoscience
Mineralogy
Remote sensing and geological applications
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Haritha A
Metrics
H-Index
i10-Index
Citation Counts
2
0
5
Planetary analogue research
Spectroscopic analyses
Geochemistry
Ultramafics and associated carbonates