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 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 (1.131.699) 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].
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Multimessenger Astrophysics | Astroparticle Physics: Cosmic Rays | Gamma-ray Astronom
H-Index Metrics
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H-Index175
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i10 Index515
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Citation Counts116,302
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density functional theory | first principles calculations | many body theory | condensed matter physics | materials scienc
H-Index Metrics
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H-Index146
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i10 Index399
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Citation Counts463,704
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Organic semiconductors | organic solar cells | bio-organic electronics | CO2 recyclin
H-Index Metrics
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H-Index134
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i10 Index546
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Citation Counts97,491
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Psychiatry | Psychopharmacology | Neuroimaging | Drug Discovery | Neuroscienc
H-Index Metrics
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H-Index133
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i10 Index824
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Citation Counts71,290
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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
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(Bio-)Physics | Optics | Surface Science | Materials Science | (Bio-) Sensor Developmen
H-Index Metrics
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H-Index127
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i10 Index790
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Citation Counts63,375
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Hydrology | Groundwater | Environment | Agriculture | Systems Scienc
H-Index Metrics
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H-Index120
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i10 Index232
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Citation Counts57,929
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Biodiversity | Food Security | Sustainability | Environmental Economics | Land-Use Modelin
H-Index Metrics
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H-Index120
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i10 Index321
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Citation Counts58,822
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Meteorology | atmospheric sciences | geoscience
H-Index Metrics
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H-Index116
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i10 Index380
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Citation Counts50,616
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