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 02, 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 (1.131.752) 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
Rankings
Environmental sciences | Nanohybrids | Adsorbents | Advanced Oxidative Processes | Membran
H-Index Metrics
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H-Index27
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i10 Index49
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Citation Counts2,275
Rankings
Engineering Projects | Sustainability | Sustainable Tourism | Environmental Engineerin
H-Index Metrics
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H-Index26
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i10 Index52
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Citation Counts2,684
Rankings
Climate and health | harmful algal bloom | ocean healt
H-Index Metrics
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H-Index24
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i10 Index37
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Citation Counts2,173
Rankings
Fresh Water | Wastewater Treatment | Bioremediation | Sustainabilit
H-Index Metrics
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H-Index22
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i10 Index35
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Citation Counts2,727
Rankings
Enviromental Radioactivity | ionizing radiation | radioprotection | nanomaterial
H-Index Metrics
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H-Index20
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i10 Index31
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Citation Counts1,377
Rankings
Environmental chemistry | detection of adulteration | Raman spectroscopy | water treatment | analytical chemistr
H-Index Metrics
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H-Index20
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i10 Index27
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Citation Counts1,046
Rankings
Rainfall | Climate in South America | ENSO | Climate Change and variability | Dynamical and statistical downscalin
H-Index Metrics
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H-Index19
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i10 Index27
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Citation Counts1,174
Rankings
Climatologia | Erosion de Suelos | Vegetatio
H-Index Metrics
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H-Index18
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i10 Index28
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Citation Counts1,528
Rankings
Emission inventories. Air pollution modeling. Volcanic ash dispersio
H-Index Metrics
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H-Index18
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i10 Index32
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Citation Counts1,237
Rankings
Sustainability | Environment | Health
H-Index Metrics
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H-Index15
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i10 Index20
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Citation Counts651
Rankings
Climate Change | Agroecology | Landscape planning | One Healt
H-Index Metrics
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H-Index15
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i10 Index18
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Citation Counts980
Rankings
Fish biology | fish diversity | fish vision | climate chang
H-Index Metrics
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H-Index14
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i10 Index15
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Citation Counts791
Rankings
Ambiental | Contaminaciones | Impacto ambienta
H-Index Metrics
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H-Index12
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i10 Index12
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Citation Counts583
Rankings
Rankings
Solar heating and cooling | buildings energy efficiency | air quality | bioenerg
H-Index Metrics
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H-Index11
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i10 Index15
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Citation Counts975
Rankings
IT | Environmental Sciences | Soil Microbiology | Innovatio
H-Index Metrics
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H-Index10
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i10 Index11
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Citation Counts396
Rankings
Medio ambiten | Fuentes renovables de Energía | Tratamiento anaerobio | Residuos sólidos biodegradable
H-Index Metrics
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H-Index10
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i10 Index11
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Citation Counts364
Rankings
Rankings
Ingeniería Ambiental | Materiales sustentable
H-Index Metrics
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H-Index9
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i10 Index5
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Citation Counts426
Rankings
Rankings
Rankings
Environmental Engineering | Civil Engineering | CoDa | numerical modelling | Climate chang
H-Index Metrics
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H-Index5
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i10 Index4
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Citation Counts105
Rankings
Sostenibilidad | Ecuador COVID 19 | Transporte y Comercio | Emprendimiento rural | Cambio Climátic
H-Index Metrics
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H-Index5
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i10 Index3
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Citation Counts132
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