The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 5 years. As of Jan 04, 2026, 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 (1.131.752) 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].
Rankings
Urban sustainability | Urban planning | Climate change | Land governanc
H-Index Metrics
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H-Index32
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i10 Index68
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Citation Counts3,697
Rankings
Renewable Energy | Bioenergy | Energy Planning and Ploic
H-Index Metrics
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H-Index32
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i10 Index73
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Citation Counts4,411
Rankings
Energy Systems Engineering | Energy Efficiency and Demand Side Management | Rural Power Suppl
H-Index Metrics
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H-Index27
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i10 Index59
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Citation Counts3,520
Rankings
Renewable Energy | Energy Efficiency | Fluid Machinery | Cooling Technologie
H-Index Metrics
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H-Index24
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i10 Index39
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Citation Counts1,480
Rankings
Aquatic Resource Management | Climate Change | Science Policy Interface | Sustainability Scienc
H-Index Metrics
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H-Index24
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i10 Index37
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Citation Counts1,923
Rankings
Rankings
Energy and Fuels | Climate Change | Water Resources | Waste Management | Environment and Healt
H-Index Metrics
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H-Index21
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i10 Index35
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Citation Counts1,927
Rankings
Renewable Energy Systems | Energy Modelling | Rural Electrification | Energy Access & Planning | Clea
H-Index Metrics
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H-Index20
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i10 Index34
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Citation Counts1,251
Rankings
Postharvest Technology | Renewable Energy | Drying | Energy Efficienc
H-Index Metrics
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H-Index18
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i10 Index21
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Citation Counts1,050
Rankings
Land use | climate change and natural resources governanc
H-Index Metrics
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H-Index17
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i10 Index27
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Citation Counts1,538
Rankings
photonics | surface plasma resonance | photonics crystals | optical communications | artificial intelligenc
H-Index Metrics
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H-Index16
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i10 Index21
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Citation Counts1,564
Rankings
Rankings
Renewable Energy | Energy Modelling | Techno-Economics Analysis | Life Cycle Assessmen
H-Index Metrics
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H-Index7
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i10 Index6
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Citation Counts145
Rankings
Renewable Energy Technologies | Energy Audit and Management | Energy Efficiency | DS
H-Index Metrics
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H-Index6
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i10 Index5
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Citation Counts164
Rankings
Rankings
Regional electricity markets | electricity reforms | Energy policy | renewable energy | electricit
H-Index Metrics
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H-Index6
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i10 Index5
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Citation Counts157
Rankings
Rankings
PV power generation | renewable energy integration | DC/DC converters and digital control of powe
H-Index Metrics
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H-Index3
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i10 Index2
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Citation Counts97
Rankings
5G mobile technology | internet of things | Telecom infrastructure design | renewable Energ
H-Index Metrics
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H-Index3
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i10 Index2
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Citation Counts40
Rankings
Renewable Energy Technologies | Sustainable Development | Electrical and Electronic
H-Index Metrics
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H-Index3
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i10 Index1
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Citation Counts58
Rankings
Biofuels | Waste-to-Energy | Just Energy Transition | Energy Policy | Climate Diplomac
H-Index Metrics
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H-Index2
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i10 Index1
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Citation Counts18
Rankings
Rankings
Renewable Energy Penetration and Integration | Energy management | Control Systems | Power Systems | Computer Applications and Arti
H-Index Metrics
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H-Index2
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i10 Index0
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Citation Counts5
Rankings
Rankings
Maintenance Engineering | Reliability Engineering | Renewable Energy | Biomass Energ
H-Index Metrics
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H-Index1
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i10 Index0
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Citation Counts5
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