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 07, 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 (1.131.927) 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
Bioremediation | Ecotoxicology | Environmental Science | Environmental Microbiology | Mixed Contaminant
H-Index Metrics
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H-Index111
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i10 Index522
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Citation Counts45,150
Rankings
Rankings
Rankings
Rankings
Civil and Environmental Engineering | Climate Change | cities and resource managemen
H-Index Metrics
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H-Index51
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i10 Index71
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Citation Counts17,322
Rankings
Air-sea gas exchange | Sea Surface Microlaye
H-Index Metrics
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H-Index51
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i10 Index79
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Citation Counts9,548
Rankings
Rankings
Environmental Soil Chemistry | waste utilisation | sorption remediatio
H-Index Metrics
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H-Index44
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i10 Index79
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Citation Counts7,317
Rankings
Rankings
Mediterranean Palaeoecology | Climate change and its impact in the british uplands and mediterranean regio
H-Index Metrics
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H-Index43
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i10 Index71
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Citation Counts7,976
Rankings
Microbial Ecology | Wastewater Treatment | Biodegradation | Micropollutant
H-Index Metrics
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H-Index38
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i10 Index63
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Citation Counts6,493
Rankings
Rankings
Rankings
Hydrology | Ecohydrology | Ecogeomorphology | Water Resource
H-Index Metrics
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H-Index37
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i10 Index60
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Citation Counts4,385
Rankings
aquatic toxicology | ecotoxicology | marine ecotoxicolog
H-Index Metrics
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H-Index35
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i10 Index65
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Citation Counts5,342
Rankings
Rankings
Catchment hydrology | GIS and Remote Sensing | Environmental Planning | Spatial Data Analytic
H-Index Metrics
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H-Index30
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i10 Index53
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Citation Counts2,602
Rankings
Rankings
Female hormones | Exercise performance | Training adaptation
H-Index Metrics
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H-Index29
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i10 Index38
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Citation Counts6,304
Rankings
environmental science | battery safety | battery recycling | environmental and analytical chemistry | environmental risk assesmen
H-Index Metrics
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H-Index29
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i10 Index36
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Citation Counts3,803
Rankings
environmental sensing | urban systems | AI | digital twins | Io
H-Index Metrics
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H-Index27
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i10 Index55
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Citation Counts3,509
Rankings
Analytical Chemistry | Environmental Analysis | Materials Characterizatio
H-Index Metrics
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H-Index27
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i10 Index48
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Citation Counts4,317
Rankings
bioelectrochemical systems microagal technology process intensification environmenta
H-Index Metrics
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H-Index26
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i10 Index43
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Citation Counts3,365
Rankings
environment schemes | agriculture | food | technology | productivit
H-Index Metrics
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H-Index25
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i10 Index37
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Citation Counts2,207
Rankings
Circular economy | Sustainability | Low carbon technologie
H-Index Metrics
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H-Index24
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i10 Index41
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Citation Counts2,158
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