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 (0) 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
Rankings
Condensed Matter Physics | Material Science | nano science | photovoltaic
H-Index Metrics
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H-Index166
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i10 Index707
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Citation Counts133,467
Rankings
Atmospheric Chemistry | Mass Spectrometry | Aerosols | Air Quality | Air Pollutio
H-Index Metrics
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H-Index163
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i10 Index648
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Citation Counts110,857
Rankings
Rankings
Rankings
ecology | microbiology | biogeochemistry | microbial ecology | ecosystem ecolog
H-Index Metrics
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H-Index149
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i10 Index302
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Citation Counts184,621
Rankings
Rankings
Rankings
Chemical Engineering | Biomedical Engineering | Materials | Biomaterials | Hydrogel
H-Index Metrics
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H-Index146
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i10 Index418
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Citation Counts75,390
Rankings
cryosphere | hydrology | biogeochemical cycling | glaciology | mountain
H-Index Metrics
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H-Index144
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i10 Index716
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Citation Counts112,008
Rankings
Materials Science | Chemical Engineerin
H-Index Metrics
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H-Index142
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i10 Index287
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Citation Counts89,831
Rankings
Rankings
Rankings
Rankings
Rankings
Rankings
Atmospheric Chemistry | Air Pollution | Volatile Organic Compounds | Mass Spectrometr
H-Index Metrics
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H-Index120
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i10 Index324
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Citation Counts42,764
Rankings
Rankings
Rankings
Rankings
Rankings
Rankings
Forest ecology | fire ecology | biogeography | disturbance ecology | geograph
H-Index Metrics
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H-Index117
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i10 Index328
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Citation Counts74,768
Rankings
Rankings
Space Plasma Physics | Solar-Terrestrial Physics | Solar Wind | Magnetic Reconnection | Collisionless Shock
H-Index Metrics
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H-Index113
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i10 Index414
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Citation Counts46,515
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