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: 1
Water and Wastewater Treatment
Adsorption
Climate and Hydrology
Water Security
Metrics
H-Index
i10 Index
Citation Counts
29
37
1,885
* Total H IndexRankings
Ranking Based On Selection: 2
Reservoir Modelling and Simulation
Process Optimization
Design
Control
& Artificial Intelligence
Metrics
H-Index
i10 Index
Citation Counts
24
48
1,479
* Total H IndexRankings
Ranking Based On Selection: 3
Agricultural Economics
Metrics
H-Index
i10 Index
Citation Counts
23
65
2,181
* Total H IndexRankings
Ranking Based On Selection: 4
Materials
Process
Energy Systems and Environmental Engineering
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,588
* Total H IndexRankings
Ranking Based On Selection: 5
Cement replacement materials/structural analysis
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,958
* Total H IndexRankings
Ranking Based On Selection: 6
Chemistry
Metrics
H-Index
i10 Index
Citation Counts
19
29
1,246
* Total H IndexRankings
Ranking Based On Selection: 7
Water Treatment Process Modelling
Optimization and Control
Metrics
H-Index
i10 Index
Citation Counts
18
32
912
* Total H IndexRankings
Ranking Based On Selection: 8
Pollution Monitoring and Evaluation
Environmental Catalysis
Metrics
H-Index
i10 Index
Citation Counts
17
26
1,239
* Total H IndexRankings
Ranking Based On Selection: 9
biotechnology
microbiology
Metrics
H-Index
i10 Index
Citation Counts
17
20
732
* Total H IndexRankings
Ranking Based On Selection: 10
Chemical Engineering
Ceramic Membrane
Surface Modification
Self-Cleaning
Wastewater Treatment
Metrics
H-Index
i10 Index
Citation Counts
16
17
808
* Total H IndexRankings
Ranking Based On Selection: 11
Hydrology and Water Resources Engineering
Metrics
H-Index
i10 Index
Citation Counts
15
15
726
* Total H IndexRankings
Ranking Based On Selection: 12
Oxidative Stress and Oxidative Stress Biomarkers
Antioxidants
Biochemistry of Infectious Diseases
Bioethics
Research & Innov
Metrics
H-Index
i10 Index
Citation Counts
15
20
827
* Total H IndexRankings
Ranking Based On Selection: 13
Otorhinolaryngology
Metrics
H-Index
i10 Index
Citation Counts
14
18
1,945
* Total H IndexRankings
Ranking Based On Selection: 14
Energy conservation
Renewable energy
Catalysis
Optimisation
Environment
Metrics
H-Index
i10 Index
Citation Counts
14
15
1,542
* Total H IndexRankings
Ranking Based On Selection: 15
hydrogeology
Metrics
H-Index
i10 Index
Citation Counts
14
28
846
* Total H IndexRankings
Ranking Based On Selection: 16
Control Engineering
Artificial Intelligence
Signal Processing
Electrical Engineering
Metrics
H-Index
i10 Index
Citation Counts
14
21
816
* Total H IndexRankings
Ranking Based On Selection: 17
Natural products Chemistry
Environmental Standards
Metrics
H-Index
i10 Index
Citation Counts
14
16
465
* Total H IndexRankings
Ranking Based On Selection: 18
Organic Chemistry
Natural products
Environmental Chemistry
Synthesis of novel bioactive compounds
Metrics
H-Index
i10 Index
Citation Counts
14
16
463
* Total H IndexRankings
Ranking Based On Selection: 19
Chemical Engineering
Biochemical and Environmental
Bioresources
Pollution Abatement
Water Treatment
Metrics
H-Index
i10 Index
Citation Counts
13
20
849
* Total H IndexRankings
Ranking Based On Selection: 20
Animal Science
Metrics
H-Index
i10 Index
Citation Counts
13
19
596
* Total H IndexRankings
Ranking Based On Selection: 21
environmental chemical engineering
Metrics
H-Index
i10 Index
Citation Counts
12
14
505
* Total H IndexRankings
Ranking Based On Selection: 22
Civil and structural engineering
Metrics
H-Index
i10 Index
Citation Counts
12
13
426
* Total H IndexRankings
Ranking Based On Selection: 23
Computational intelligence applied to power system
renewable energy
Metrics
H-Index
i10 Index
Citation Counts
12
15
542
* Total H IndexRankings
Ranking Based On Selection: 24
Project Management and Construction Management
Metrics
H-Index
i10 Index
Citation Counts
11
13
394
* Total H IndexRankings
Ranking Based On Selection: 25
Construction Management
Metrics
H-Index
i10 Index
Citation Counts
11
12
365
Ibrahim Mohammed Lawal
Metrics
H-Index
i10-Index
Citation Counts
29
37
1,885
Water and Wastewater Treatment
Adsorption
Climate and Hydrology
Water Security
Abdulwahab Giwa
Metrics
H-Index
i10-Index
Citation Counts
24
48
1,479
Reservoir Modelling and Simulation
Process Optimization
Design
Control
& Artificial Intelligence
Mohammed Bello 1
Metrics
H-Index
i10-Index
Citation Counts
23
65
2,181
Agricultural Economics
Isah Yakub Mohammed
Metrics
H-Index
i10-Index
Citation Counts
22
35
1,588
Materials
Process
Energy Systems and Environmental Engineering
Elinwa, Augustine Uchechukwu
Metrics
H-Index
i10-Index
Citation Counts
19
27
1,958
Cement replacement materials/structural analysis
Aliyu Jauro
Metrics
H-Index
i10-Index
Citation Counts
19
29
1,246
Saidat Olanipekun Giwa
Metrics
H-Index
i10-Index
Citation Counts
18
32
912
Water Treatment Process Modelling
Optimization and Control
Adamu Haruna
Metrics
H-Index
i10-Index
Citation Counts
17
26
1,239
Moshood Yusuf
Metrics
H-Index
i10-Index
Citation Counts
17
20
732
Yusuf Olabode Raji
Metrics
H-Index
i10-Index
Citation Counts
16
17
808
Chemical Engineering
Ceramic Membrane
Surface Modification
Self-Cleaning
Wastewater Treatment
Ibrahim Hassan
Metrics
H-Index
i10-Index
Citation Counts
15
15
726
Hydrology and Water Resources Engineering
Ibrahim Hassan Garba
Metrics
H-Index
i10-Index
Citation Counts
15
20
827
Oxidative Stress and Oxidative Stress Biomarkers
Antioxidants
Biochemistry of Infectious Diseases
Bioethics
Research & Innov
Abdullahi Musa Kirfi
Metrics
H-Index
i10-Index
Citation Counts
14
18
1,945
Kabir Garba
Metrics
H-Index
i10-Index
Citation Counts
14
15
1,542
Energy conservation
Renewable energy
Catalysis
Optimisation
Environment
Abdullateef Lawal
Metrics
H-Index
i10-Index
Citation Counts
14
28
846
Sabo Miya Hassan
Metrics
H-Index
i10-Index
Citation Counts
14
21
816
Control Engineering
Artificial Intelligence
Signal Processing
Electrical Engineering
Istifanus Yarkasuwa Chindo
Metrics
H-Index
i10-Index
Citation Counts
14
16
465
Natural products Chemistry
Environmental Standards
Yarkasuwa Istifanus Chindo
Metrics
H-Index
i10-Index
Citation Counts
14
16
463
Organic Chemistry
Natural products
Environmental Chemistry
Synthesis of novel bioactive compounds
Jibril Mohammed
Metrics
H-Index
i10-Index
Citation Counts
13
20
849
Chemical Engineering
Biochemical and Environmental
Bioresources
Pollution Abatement
Water Treatment
Dju Kalla
Metrics
H-Index
i10-Index
Citation Counts
13
19
596
Muhammad İdris Misau
Metrics
H-Index
i10-Index
Citation Counts
12
14
505
environmental chemical engineering
Abbagana Mohammed
Metrics
H-Index
i10-Index
Citation Counts
12
13
426
Civil and structural engineering
Ganiyu Bakare
Metrics
H-Index
i10-Index
Citation Counts
12
15
542
Computational intelligence applied to power system
renewable energy
Jamilu Maiauduga Bala
Metrics
H-Index
i10-Index
Citation Counts
11
13
394
Ibrahim Inuwa Musa
Metrics
H-Index
i10-Index
Citation Counts
11
12
365