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 05, 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 (1.131.911) 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
Anaerobic digestion | atmospheric pollution transpor
H-Index Metrics
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H-Index36
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i10 Index51
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Citation Counts7,533
Rankings
Biyoloji eğitimi | Fen eğitii | çevre eğitim
H-Index Metrics
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H-Index27
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i10 Index58
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Citation Counts3,283
Rankings
Rankings
Rankings
Environmental Biotechnology | Laccase | Advance Oxidation Processes | Biorefiner
H-Index Metrics
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H-Index10
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i10 Index10
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Citation Counts613
Rankings
Rankings
çevre | eğitim | ekoloji | doğa korum
H-Index Metrics
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H-Index8
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i10 Index7
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Citation Counts202
Rankings
Advanced Oxidation Processes | Catalytic Advanced Oxidation Processes | Groundwater and waste water remediation | Water Qualit
H-Index Metrics
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H-Index7
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i10 Index6
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Citation Counts416
Rankings
Adsorption | pesticides | soil and land use | water pollutio
H-Index Metrics
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H-Index6
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i10 Index6
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Citation Counts218
Rankings
Energy Efficient Buildings | Environmental Sustainability | Climate Change | Building Simulation | Energy Polic
H-Index Metrics
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H-Index5
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i10 Index4
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Citation Counts186
Rankings
Environment | Tourism forecasting | Management | Finance | Waste managemen
H-Index Metrics
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H-Index5
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i10 Index4
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Citation Counts193
Rankings
Rankings
environmental engineering | energy systems engineering | chemistr
H-Index Metrics
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H-Index3
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i10 Index2
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Citation Counts218
Rankings
climate change | water | politics and securit
H-Index Metrics
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H-Index2
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i10 Index0
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Citation Counts10
Rankings
Rankings
Rankings
Environmental Engineering | Water Resources Management | Sustainability and Climate Chang
H-Index Metrics
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H-Index1
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i10 Index0
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Citation Counts2
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