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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].
* Total H Index Rankings
Rankings
323,764
World Rank
155
Country Rank
5
University
Ranking Based On Selection:
1
Engineering & Technology / Environmental Science & Engineering
Emerging Diseases | Climate Change | Mental Health | Medical Education | Chronic Disease
Emerging Diseases | Climate Change | Mental Health | Medical Education | Chronic Disease
H-Index Metrics
-
H-Index27
-
i10 Index64
-
Citation Counts2,336
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* Total H Index Rankings
Rankings
327,800
World Rank
159
Country Rank
19
University
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Climate variability | Climate modeling | ENSO impacts | Climate chang
Climate variability | Climate modeling | ENSO impacts | Climate chang
H-Index Metrics
-
H-Index27
-
i10 Index50
-
Citation Counts2,363
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* Total H Index Rankings
Rankings
441,976
World Rank
246
Country Rank
42
University
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Medio ambiente y desarrollo sostenibl
Medio ambiente y desarrollo sostenibl
H-Index Metrics
-
H-Index22
-
i10 Index31
-
Citation Counts5,254
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* Total H Index Rankings
Rankings
443,516
World Rank
250
Country Rank
29
University
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Amazon Indigenous Health | Food Security | Nutrition | Climate Change | Environmental Healt
Amazon Indigenous Health | Food Security | Nutrition | Climate Change | Environmental Healt
H-Index Metrics
-
H-Index22
-
i10 Index37
-
Citation Counts2,840
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* Total H Index Rankings
Rankings
794,922
World Rank
837
Country Rank
29
University
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Environmental & Ecological Economics | Mining | Public Health | Per
Environmental & Ecological Economics | Mining | Public Health | Per
H-Index Metrics
-
H-Index13
-
i10 Index18
-
Citation Counts620
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* Total H Index Rankings
Rankings
800,513
World Rank
850
Country Rank
1
University
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Ingeniería ambienta | artículos de ingenierí
Ingeniería ambienta | artículos de ingenierí
H-Index Metrics
-
H-Index13
-
i10 Index15
-
Citation Counts723
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* Total H Index Rankings
Rankings
839,643
World Rank
945
Country Rank
32
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
958,647
World Rank
1,218
Country Rank
1
University
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
Medio Ambiente y Desarrollo Sostenible- Investigación Sistémica
Medio Ambiente y Desarrollo Sostenible- Investigación Sistémica
H-Index Metrics
-
H-Index11
-
i10 Index11
-
Citation Counts555
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* Total H Index Rankings
Rankings
1,007,201
World Rank
1,329
Country Rank
17
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
1,030,314
World Rank
1,371
Country Rank
126
University
Ranking Based On Selection:
10
Engineering & Technology / Environmental Science & Engineering
Indigenous health | interculturality | climate chang
Indigenous health | interculturality | climate chang
H-Index Metrics
-
H-Index10
-
i10 Index12
-
Citation Counts422
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* Total H Index Rankings
Rankings
1,106,463
World Rank
1,564
Country Rank
20
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
1,154,257
World Rank
1,704
Country Rank
29
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
1,171,701
World Rank
1,762
Country Rank
61
University
Ranking Based On Selection:
13
Engineering & Technology / Environmental Science & Engineering
Medio Ambiente | Química Analítica | Química Sostenible | Química Ambiental | Quimiometrí
Medio Ambiente | Química Analítica | Química Sostenible | Química Ambiental | Quimiometrí
H-Index Metrics
-
H-Index9
-
i10 Index9
-
Citation Counts617
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* Total H Index Rankings
Rankings
1,214,895
World Rank
1,868
Country Rank
13
University
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
biofuels | environmental engineering | bioprocess engineering | biotechnology | wastewater treatmen
biofuels | environmental engineering | bioprocess engineering | biotechnology | wastewater treatmen
H-Index Metrics
-
H-Index8
-
i10 Index8
-
Citation Counts161
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* Total H Index Rankings
Rankings
1,257,211
World Rank
2,011
Country Rank
23
University
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Environmental psychology | Climate Change | Risk perceptio
Environmental psychology | Climate Change | Risk perceptio
H-Index Metrics
-
H-Index8
-
i10 Index7
-
Citation Counts777
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* Total H Index Rankings
Rankings
1,546,708
World Rank
3,071
Country Rank
92
University
Ranking Based On Selection:
16
Engineering & Technology / Environmental Science & Engineering
Material Engineering / Environmental Engineerin
Material Engineering / Environmental Engineerin
H-Index Metrics
-
H-Index6
-
i10 Index3
-
Citation Counts68
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* Total H Index Rankings
Rankings
1,595,098
World Rank
3,335
Country Rank
97
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
1,640,344
World Rank
3,537
Country Rank
39
University
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
Renewable Energy | Air quality | Climate chang
Renewable Energy | Air quality | Climate chang
H-Index Metrics
-
H-Index5
-
i10 Index5
-
Citation Counts169
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* Total H Index Rankings
Rankings
1,646,446
World Rank
3,559
Country Rank
20
University
Ranking Based On Selection:
19
Engineering & Technology / Environmental Science & Engineering
Ecotoxicology | Modelling | Climate Change
Ecotoxicology | Modelling | Climate Change
H-Index Metrics
-
H-Index5
-
i10 Index5
-
Citation Counts115
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* Total H Index Rankings
Rankings
1,658,325
World Rank
3,599
Country Rank
4
University
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Large-sample hydrology | Uncertainty in hydrological forecasting | Climate Change | Hydroinformatic
Large-sample hydrology | Uncertainty in hydrological forecasting | Climate Change | Hydroinformatic
H-Index Metrics
-
H-Index5
-
i10 Index4
-
Citation Counts179
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* Total H Index Rankings
Rankings
1,693,913
World Rank
3,770
Country Rank
63
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
1,705,444
World Rank
3,835
Country Rank
29
University
Ranking Based On Selection:
22
* Total H Index Rankings
Rankings
1,706,313
World Rank
3,847
Country Rank
22
University
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Solid Waste | Climate Change | Remediation | Valorization of Waste | Blibliometric
Solid Waste | Climate Change | Remediation | Valorization of Waste | Blibliometric
H-Index Metrics
-
H-Index5
-
i10 Index3
-
Citation Counts84
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* Total H Index Rankings
Rankings
1,715,469
World Rank
3,893
Country Rank
132
University
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
Environmental sciences | Air pollution | Heavy metals | WWTPs | Sewage sludg
Environmental sciences | Air pollution | Heavy metals | WWTPs | Sewage sludg
H-Index Metrics
-
H-Index5
-
i10 Index3
-
Citation Counts60
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* Total H Index Rankings
Rankings
1,735,413
World Rank
4,009
Country Rank
112
University
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Natural products | Microbiology | Environmental Sciences | Pharmaceutical Science
Natural products | Microbiology | Environmental Sciences | Pharmaceutical Science
H-Index Metrics
-
H-Index5
-
i10 Index2
-
Citation Counts60
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Premium Data
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