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University, Subject, Country, Region, World
International Institute for Applied Systems Analysis 16 Scientists Subject Rankings
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 09, 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 (1.122.060) 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].
* Total H Index Rankings
Rankings
4,035
World Rank
18
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
climate change | energy economics | integrated assessment | technological change | sustainable developmen
climate change | energy economics | integrated assessment | technological change | sustainable developmen
H-Index Metrics
-
H-Index126
-
i10 Index298
-
Citation Counts148,581
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* Total H Index Rankings
Rankings
13,442
World Rank
72
Country Rank
5
University
Ranking Based On Selection:
2
* Total H Index Rankings
Rankings
71,253
World Rank
411
Country Rank
15
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Grassland management | Climate change | Agriculture | Biogeochemical cycle | Land-use chang
Grassland management | Climate change | Agriculture | Biogeochemical cycle | Land-use chang
H-Index Metrics
-
H-Index54
-
i10 Index112
-
Citation Counts11,354
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* Total H Index Rankings
Rankings
92,243
World Rank
542
Country Rank
18
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Energy Demand | Integrated Assessment | Macro Energy Systems | Scenarios | Energy and Developmen
Energy Demand | Integrated Assessment | Macro Energy Systems | Scenarios | Energy and Developmen
H-Index Metrics
-
H-Index49
-
i10 Index95
-
Citation Counts14,693
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* Total H Index Rankings
Rankings
139,711
World Rank
807
Country Rank
23
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Land-use Modelling | Climate Change Mitigation | Food Security | Sustainable Developmen
Land-use Modelling | Climate Change Mitigation | Food Security | Sustainable Developmen
H-Index Metrics
-
H-Index41
-
i10 Index56
-
Citation Counts10,401
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* Total H Index Rankings
Rankings
147,529
World Rank
849
Country Rank
25
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Energy Storage | Hydropower | Climate Change | Renewable Energies | Water Managemen
Energy Storage | Hydropower | Climate Change | Renewable Energies | Water Managemen
H-Index Metrics
-
H-Index40
-
i10 Index88
-
Citation Counts5,746
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* Total H Index Rankings
Rankings
155,949
World Rank
906
Country Rank
28
University
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Energy Storage | Energy Systems Analysis | Data Aanalytics and Energy Transitions | Economics o
Energy Storage | Energy Systems Analysis | Data Aanalytics and Energy Transitions | Economics o
H-Index Metrics
-
H-Index39
-
i10 Index64
-
Citation Counts7,426
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* Total H Index Rankings
Rankings
166,622
World Rank
968
Country Rank
33
University
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
air pollution | energy modelling | climat
air pollution | energy modelling | climat
H-Index Metrics
-
H-Index38
-
i10 Index71
-
Citation Counts11,395
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* Total H Index Rankings
Rankings
174,709
World Rank
1,009
Country Rank
36
University
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
air pollution | climate change | atmospheric scienc
air pollution | climate change | atmospheric scienc
H-Index Metrics
-
H-Index37
-
i10 Index57
-
Citation Counts14,753
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* Total H Index Rankings
Rankings
424,299
World Rank
2,282
Country Rank
62
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
energy demand | climate change mitigation | behavior change | agent-based modelling | citie
energy demand | climate change mitigation | behavior change | agent-based modelling | citie
H-Index Metrics
-
H-Index22
-
i10 Index32
-
Citation Counts24,468
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* Total H Index Rankings
Rankings
482,975
World Rank
2,553
Country Rank
67
University
Ranking Based On Selection:
11
Engineering & Technology / Environmental Science & Engineering
policy analysis | deep uncertainty | system dynamics | climate change mitigation | sustainabilit
policy analysis | deep uncertainty | system dynamics | climate change mitigation | sustainabilit
H-Index Metrics
-
H-Index20
-
i10 Index28
-
Citation Counts1,656
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* Total H Index Rankings
Rankings
635,498
World Rank
3,255
Country Rank
80
University
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
Waste and wastewater management | social metabolism | air pollution climate chang
Waste and wastewater management | social metabolism | air pollution climate chang
H-Index Metrics
-
H-Index16
-
i10 Index19
-
Citation Counts2,044
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* Total H Index Rankings
Rankings
775,857
World Rank
3,909
Country Rank
86
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Water-Energy-Food Nexus | sustainability | climate chang
Water-Energy-Food Nexus | sustainability | climate chang
H-Index Metrics
-
H-Index13
-
i10 Index14
-
Citation Counts955
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* Total H Index Rankings
Rankings
1,052,563
World Rank
5,236
Country Rank
99
University
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
Macroecology | Biodiversity | Conservation | Land use & Climate change | Food system
Macroecology | Biodiversity | Conservation | Land use & Climate change | Food system
H-Index Metrics
-
H-Index9
-
i10 Index9
-
Citation Counts698
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* Total H Index Rankings
Rankings
1,514,660
World Rank
7,280
Country Rank
117
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Air Pollution policy | Atmospheric aerosol | Remote sensing | Indo-Gangetic Basin | Aerosol cloud interactio
Air Pollution policy | Atmospheric aerosol | Remote sensing | Indo-Gangetic Basin | Aerosol cloud interactio
H-Index Metrics
-
H-Index6
-
i10 Index5
-
Citation Counts113
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* Total H Index Rankings
Rankings
1,704,835
World Rank
7,919
Country Rank
125
University
Ranking Based On Selection:
16
Engineering & Technology / Environmental Science & Engineering
Environmental and Health Economics | Optimal control theory | dynamic modellin
Environmental and Health Economics | Optimal control theory | dynamic modellin
H-Index Metrics
-
H-Index5
-
i10 Index4
-
Citation Counts132
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