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 Feb 01, 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 (870.053) 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
Heterogeneous catalysis
Environmental catalysis
Single atom catalysis
Greenhouse gas
XAS
Metrics
H-Index
i10 Index
Citation Counts
61
113
12,277
* Total H IndexRankings
Ranking Based On Selection: 2
Magnetic MEMS
environmental sensors
microfabrication
Metrics
H-Index
i10 Index
Citation Counts
33
75
3,793
* Total H IndexRankings
Ranking Based On Selection: 3
Wastewater Treatment
Nutrient Removal
Biofilms
Microbial Water Quality
Metrics
H-Index
i10 Index
Citation Counts
26
37
3,181
* Total H IndexRankings
Ranking Based On Selection: 4
Water Resources and Watershed Management
Metrics
H-Index
i10 Index
Citation Counts
21
43
1,826
* Total H IndexRankings
Ranking Based On Selection: 5
water quality engineering
advanced water treatment
aeration
corrosion control
disinfection
Metrics
H-Index
i10 Index
Citation Counts
20
43
1,541
* Total H IndexRankings
Ranking Based On Selection: 6
Geoenvironmental Engineering
Smart Cities
Waste Management
Numerical Modeling
Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
19
31
1,189
* Total H IndexRankings
Ranking Based On Selection: 7
Environmental engineering
stormwater management
Metrics
H-Index
i10 Index
Citation Counts
10
10
248
* Total H IndexRankings
Ranking Based On Selection: 8
water treatment technology and engineering
Environmental Engineering
wetland ecology
environment
Metrics
H-Index
i10 Index
Citation Counts
6
3
157
* Total H IndexRankings
Ranking Based On Selection: 9
Environment
Organization Theory
Social Network Analysis
Metrics
H-Index
i10 Index
Citation Counts
5
4
119
* Total H IndexRankings
Ranking Based On Selection: 10
Environmental Engineering
Stormwater
Metrics
H-Index
i10 Index
Citation Counts
3
2
50
Fudong Liu
Metrics
H-Index
i10-Index
Citation Counts
61
113
12,277
Heterogeneous catalysis
Environmental catalysis
Single atom catalysis
Greenhouse gas
XAS
Hyoung Jin Cho
Metrics
H-Index
i10-Index
Citation Counts
33
75
3,793
Magnetic MEMS
environmental sensors
microfabrication
Andrew Randall
Metrics
H-Index
i10-Index
Citation Counts
26
37
3,181
Wastewater Treatment
Nutrient Removal
Biofilms
Microbial Water Quality
FN Nnadi
Metrics
H-Index
i10-Index
Citation Counts
21
43
1,826
Water Resources and Watershed Management
Steven J Duranceau|Steve Duranceau, Steven Duranceau
Metrics
H-Index
i10-Index
Citation Counts
20
43
1,541
water quality engineering
advanced water treatment
aeration
corrosion control
disinfection
Jiannan (Nick) Chen|Jiannan Chen, Nick Chen
Metrics
H-Index
i10-Index
Citation Counts
19
31
1,189
Geoenvironmental Engineering
Smart Cities
Waste Management
Numerical Modeling
Machine Learning
Dan Wen
Metrics
H-Index
i10-Index
Citation Counts
10
10
248
Environmental engineering
stormwater management
B Kushan Aravinda Bellanthudawa|Bellanthudawage Kushan Aravinda Bellanthudawa
Metrics
H-Index
i10-Index
Citation Counts
6
3
157
water treatment technology and engineering
Environmental Engineering
wetland ecology
environment
Hyung Sam Park
Metrics
H-Index
i10-Index
Citation Counts
5
4
119
Environment
Organization Theory
Social Network Analysis
Andrew Hood
Metrics
H-Index
i10-Index
Citation Counts
3
2
50
Environmental Engineering
Stormwater