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 Sep 02, 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 (1.122.044) 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
enviornmental science | enviornmental biolog
H-Index Metrics
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H-Index62
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i10 Index328
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Citation Counts19,145
Rankings
Advanced Oxidation Processes | Ozone | UV | Electrolysi
H-Index Metrics
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H-Index43
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i10 Index87
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Citation Counts10,263
Rankings
Environmental Health | WaSH | Capacity Building | Public Healt
H-Index Metrics
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H-Index40
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i10 Index104
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Citation Counts5,422
Rankings
Rankings
Rankings
Environmental Epidemiology | Air pollution and health | Indigenous health | WASH | Big data analysi
H-Index Metrics
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H-Index22
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i10 Index26
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Citation Counts1,627
Rankings
Environmental Science/Technology | Drinking Water Purification | Environmental Health | Sanitatio
H-Index Metrics
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H-Index20
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i10 Index25
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Citation Counts17,638
Rankings
Natural resource management | climate change adaptation | rural livelihood
H-Index Metrics
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H-Index18
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i10 Index24
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Citation Counts2,847
Rankings
Environment | Carbon sequestration | Ecosystem modelling | Allometric Equation | Ecolog
H-Index Metrics
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H-Index17
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i10 Index22
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Citation Counts1,572
Rankings
environmental biotechnology | bioinformatics | vermicomposting | waste management | environment healt
H-Index Metrics
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H-Index17
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i10 Index25
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Citation Counts1,192
Rankings
Rankings
sustinability | climate change | landscape dynamics | geoarchaeology | physical geo
H-Index Metrics
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H-Index16
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i10 Index25
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Citation Counts1,015
Rankings
Climate Change | Sustainable Agriculture and Machine Learnin
H-Index Metrics
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H-Index16
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i10 Index23
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Citation Counts752
Rankings
Hydroclimatic extremes | Watershed Management | Ecosystems | GIS and Remote Sensin
H-Index Metrics
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H-Index16
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i10 Index20
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Citation Counts892
Rankings
Exposome | Diet and Respiratory disease | Air pollution and Respiratory Health | and Climate and Healt
H-Index Metrics
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H-Index15
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i10 Index17
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Citation Counts18,109
Rankings
Hydrologic modelling | Irrigation design and managment | Climate change | GIS and RS application on natural resources managment | C
H-Index Metrics
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H-Index14
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i10 Index17
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Citation Counts1,226
Rankings
WaSH | Environmental Engineering | Heavy Metal removal | Water Quality and Treatmen
H-Index Metrics
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H-Index14
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i10 Index16
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Citation Counts1,155
Rankings
Rankings
• Water pollution prevention and remediation | Water and Wastewater treatment | Air pollutio
H-Index Metrics
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H-Index13
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i10 Index16
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Citation Counts843
Rankings
Air quality | Climate Modeling | Adaptation and Mitigation of Climate impact
H-Index Metrics
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H-Index13
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i10 Index14
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Citation Counts855
Rankings
Biodiversity Conservation and Utilization | Plant Biotechnology | Plant Breeding | Environmental Scienc
H-Index Metrics
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H-Index13
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i10 Index15
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Citation Counts722
Rankings
Environmental Science | Environmental Management | Environmental Sustainability | Land Resources Management | Land Degradation & Re
H-Index Metrics
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H-Index13
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i10 Index14
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Citation Counts489
Rankings
Weed Ecology and Management | Allelopathy | Agroecology | Organic Agricultur
H-Index Metrics
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H-Index13
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i10 Index13
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Citation Counts619
Rankings
Hydrology | Water Resources Management | Hydroclimatic Time Series Analysis | Climate Change | Land us
H-Index Metrics
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H-Index12
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i10 Index14
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Citation Counts808
Rankings
GIS and Remote Sensing | Environmental studies | Urban Green Infrastructure Development | Lan
H-Index Metrics
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H-Index12
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i10 Index13
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Citation Counts502

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