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 Jan 30, 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 (873.690) 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: 26
Air Quality
Climate Change
Public Administration and Policy.
Metrics
H-Index
i10 Index
Citation Counts
6
5
700
* Total H IndexRankings
Ranking Based On Selection: 27
small-scale fisheries
bycatch reduction
biology education
animal behavior
Metrics
H-Index
i10 Index
Citation Counts
5
4
211
* Total H IndexRankings
Ranking Based On Selection: 28
Nanomaterial
Adsorption
Water Treatment
Catalysis
Metrics
H-Index
i10 Index
Citation Counts
5
3
92
* Total H IndexRankings
Ranking Based On Selection: 29
Environmental Engineering
Microbiology
Bioremediation
Heavy metals
Chlorinated solvents
Metrics
H-Index
i10 Index
Citation Counts
5
3
106
* Total H IndexRankings
Ranking Based On Selection: 30
Environmental engineering
Water treatment
Resource recovery
Ion exchange
Membranes
Metrics
H-Index
i10 Index
Citation Counts
4
2
51
* Total H IndexRankings
Ranking Based On Selection: 31
Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
3
3
185
* Total H IndexRankings
Ranking Based On Selection: 32
Environmental Engineering
Wastewater-Based Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
3
3
75
* Total H IndexRankings
Ranking Based On Selection: 33
Remote Sensing
Hyperspectral Imaging
Water Resources Engineering
Geo-environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
3
2
50
* Total H IndexRankings
Ranking Based On Selection: 34
Environmental Engineering
Chemical Engineering
Metrics
H-Index
i10 Index
Citation Counts
3
1
97
* Total H IndexRankings
Ranking Based On Selection: 35
Ecological network analysis
Water treatment technologies
nanotechnology
sustainability
Metrics
H-Index
i10 Index
Citation Counts
2
2
98
Joshua Uebelherr
Metrics
H-Index
i10-Index
Citation Counts
6
5
700
Air Quality
Climate Change
Public Administration and Policy.
Cindy Vargas
Metrics
H-Index
i10-Index
Citation Counts
5
4
211
small-scale fisheries
bycatch reduction
biology education
animal behavior
Alireza Farsad
Metrics
H-Index
i10-Index
Citation Counts
5
3
92
Nanomaterial
Adsorption
Water Treatment
Catalysis
Srivatsan Mohana Rangan
Metrics
H-Index
i10-Index
Citation Counts
5
3
106
Environmental Engineering
Microbiology
Bioremediation
Heavy metals
Chlorinated solvents
Lucas Crane
Metrics
H-Index
i10-Index
Citation Counts
4
2
51
Environmental engineering
Water treatment
Resource recovery
Ion exchange
Membranes
Zunhui Lin
Metrics
H-Index
i10-Index
Citation Counts
3
3
185
Environmental Engineering
Naeema Cheshomi
Metrics
H-Index
i10-Index
Citation Counts
3
3
75
Environmental Engineering
Wastewater-Based Epidemiology
Mahdis Khorram
Metrics
H-Index
i10-Index
Citation Counts
3
2
50
Remote Sensing
Hyperspectral Imaging
Water Resources Engineering
Geo-environmental Engineering
Sepideh Hakim Elahi
Metrics
H-Index
i10-Index
Citation Counts
3
1
97
Environmental Engineering
Chemical Engineering
Emily Briese
Metrics
H-Index
i10-Index
Citation Counts
2
2
98
Ecological network analysis
Water treatment technologies
nanotechnology
sustainability