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 Dec 31, 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 (1.131.755) 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
climate change | energy economics | integrated assessment | technological change | sustainable developmen
H-Index Metrics
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H-Index129
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i10 Index304
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Citation Counts155,637
Rankings
Rankings
Rankings
Rankings
Environmental Chemistry | speciation | Arsenic | rice | Analytical Chemistr
H-Index Metrics
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H-Index80
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i10 Index281
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Citation Counts26,453
Rankings
Environmental Psychology | Nature & Health | Blue Space | Risk perception | Happines
H-Index Metrics
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H-Index76
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i10 Index183
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Citation Counts34,827
Rankings
Microplastics | Pollutants | PFAS | Nanoparticles | Remediatio
H-Index Metrics
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H-Index72
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i10 Index194
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Citation Counts22,578
Rankings
Integrated land use modelling | climate change | global change | applied mathematical programming | bio-physical process modellin
H-Index Metrics
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H-Index68
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i10 Index167
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Citation Counts23,449
Rankings
Rankings
Grassland management | Climate change | Agriculture | Biogeochemical cycle | Land-use chang
H-Index Metrics
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H-Index56
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i10 Index122
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Citation Counts12,734
Rankings
Energy Demand | Integrated Assessment | Macro Energy Systems | Scenarios | Energy and Developmen
H-Index Metrics
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H-Index50
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i10 Index100
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Citation Counts15,767
Rankings
Environmental sciences | Protistology | Evolutionary Biolog
H-Index Metrics
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H-Index48
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i10 Index104
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Citation Counts7,168
Rankings
Ecological economics | socio-economic theories of behaviour | ecological macroeconomics | sustainable wor
H-Index Metrics
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H-Index44
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i10 Index65
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Citation Counts9,588
Rankings
Energy Storage | Hydropower | Climate Change | Renewable Energies | Water Managemen
H-Index Metrics
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H-Index42
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i10 Index99
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Citation Counts6,286
Rankings
Land-use Modelling | Climate Change Mitigation | Food Security | Sustainable Developmen
H-Index Metrics
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H-Index42
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i10 Index56
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Citation Counts11,203
Rankings
Rankings
climate services | regional climate modeling | regional impacts of climate change | snow | avalanche
H-Index Metrics
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H-Index42
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i10 Index65
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Citation Counts14,101
Rankings
Energy Storage | Energy Systems Analysis | Data Aanalytics and Energy Transitions | Economics o
H-Index Metrics
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H-Index41
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i10 Index66
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Citation Counts8,024
Rankings
Environmental health impact | Environmental epidemiolog
H-Index Metrics
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H-Index41
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i10 Index90
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Citation Counts7,776
Rankings
Rankings
air pollution | climate change | atmospheric scienc
H-Index Metrics
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H-Index39
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i10 Index61
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Citation Counts17,732
Rankings
air pollution | energy modelling | climat
H-Index Metrics
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H-Index38
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i10 Index72
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Citation Counts11,992
Rankings
air pollution | preventive medicine | environmental medicine | occupational medicin
H-Index Metrics
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H-Index36
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i10 Index63
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Citation Counts5,435
Rankings
Cellulose | sustainable energy storage | thin films | nanotechnolog
H-Index Metrics
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H-Index35
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i10 Index93
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Citation Counts3,621
Rankings
Urban Water Management | Urban hydrology | Environmental Engineering | Sustainability | Infrastructur
H-Index Metrics
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H-Index34
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i10 Index61
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Citation Counts3,588
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