University, Subject, Country, Region, World
International Water Management Institute (IWMI) 65 Scientists Subject Rankings - 2025
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 6 years. As of Jun 18, 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 (1.121.299) 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
370,770
World Rank
165
Country Rank
26
University
Ranking Based On Selection:
26
Social Sciences / Social Science
impact assessment of agricultural technologies | cost benefit analysis | nutrition/gender sensitive value chain analysi
impact assessment of agricultural technologies | cost benefit analysis | nutrition/gender sensitive value chain analysi
H-Index Metrics
-
H-Index24
-
i10 Index33
-
Citation Counts2,141
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* Total H Index Rankings
Rankings
381,019
World Rank
172
Country Rank
27
University
Ranking Based On Selection:
27
* Total H Index Rankings
Rankings
382,914
World Rank
176
Country Rank
28
University
Ranking Based On Selection:
28
* Total H Index Rankings
Rankings
419,151
World Rank
205
Country Rank
29
University
Ranking Based On Selection:
29
Engineering & Technology / Environmental Science & Engineering
Climate change/variability | hydrological modeling | hydrological extremes | water security | water managemen
Climate change/variability | hydrological modeling | hydrological extremes | water security | water managemen
H-Index Metrics
-
H-Index22
-
i10 Index34
-
Citation Counts2,012
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* Total H Index Rankings
Rankings
447,313
World Rank
229
Country Rank
30
University
Ranking Based On Selection:
30
* Total H Index Rankings
Rankings
453,935
World Rank
237
Country Rank
31
University
Ranking Based On Selection:
31
* Total H Index Rankings
Rankings
498,846
World Rank
271
Country Rank
32
University
Ranking Based On Selection:
32
* Total H Index Rankings
Rankings
513,597
World Rank
288
Country Rank
33
University
Ranking Based On Selection:
33
Engineering & Technology / Environmental Science & Engineering
Water Resources | Environmental Pollution | Climate Change | Planetary Health | Remote Sensin
Water Resources | Environmental Pollution | Climate Change | Planetary Health | Remote Sensin
H-Index Metrics
-
H-Index19
-
i10 Index23
-
Citation Counts914
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* Total H Index Rankings
Rankings
531,508
World Rank
312
Country Rank
34
University
Ranking Based On Selection:
34
* Total H Index Rankings
Rankings
538,771
World Rank
317
Country Rank
35
University
Ranking Based On Selection:
35
Agriculture & Forestry / Agriculture
Agriculture | Disaster | Earth Observation | Geo-economics | Data Scienc
Agriculture | Disaster | Earth Observation | Geo-economics | Data Scienc
H-Index Metrics
-
H-Index18
-
i10 Index32
-
Citation Counts1,175
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* Total H Index Rankings
Rankings
540,895
World Rank
320
Country Rank
36
University
Ranking Based On Selection:
36
Engineering & Technology / Environmental Science & Engineering
Spatial Hydrology | Climate Change | Water Accounting | Land and Water Management | Earth Observatio
Spatial Hydrology | Climate Change | Water Accounting | Land and Water Management | Earth Observatio
H-Index Metrics
-
H-Index18
-
i10 Index21
-
Citation Counts1,371
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* Total H Index Rankings
Rankings
558,375
World Rank
338
Country Rank
37
University
Ranking Based On Selection:
37
Engineering & Technology / Environmental Science & Engineering
Hydrological modeling | Climate Change | Remote Sensin
Hydrological modeling | Climate Change | Remote Sensin
H-Index Metrics
-
H-Index18
-
i10 Index24
-
Citation Counts1,567
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* Total H Index Rankings
Rankings
564,266
World Rank
343
Country Rank
38
University
Ranking Based On Selection:
38
Business & Management / Entrepreneurship
Innovation system | innovation scaling | research commercialisation | development studie
Innovation system | innovation scaling | research commercialisation | development studie
H-Index Metrics
-
H-Index18
-
i10 Index20
-
Citation Counts873
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* Total H Index Rankings
Rankings
565,850
World Rank
346
Country Rank
39
University
Ranking Based On Selection:
39
* Total H Index Rankings
Rankings
601,103
World Rank
377
Country Rank
40
University
Ranking Based On Selection:
40
Others
Natural Resources Governance | irrigation management | wetlands management | inclusive growth | weather index insuranc
Natural Resources Governance | irrigation management | wetlands management | inclusive growth | weather index insuranc
H-Index Metrics
-
H-Index17
-
i10 Index30
-
Citation Counts1,418
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* Total H Index Rankings
Rankings
630,092
World Rank
406
Country Rank
41
University
Ranking Based On Selection:
41
Engineering & Technology / Environmental Science & Engineering
Water resources | Agriculture | Environment | Climate Chang
Water resources | Agriculture | Environment | Climate Chang
H-Index Metrics
-
H-Index16
-
i10 Index19
-
Citation Counts1,519
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* Total H Index Rankings
Rankings
686,906
World Rank
478
Country Rank
42
University
Ranking Based On Selection:
42
Engineering & Technology / Environmental Science & Engineering
Institutions | policy | governance | climate change adaptation | irrigatio
Institutions | policy | governance | climate change adaptation | irrigatio
H-Index Metrics
-
H-Index15
-
i10 Index21
-
Citation Counts915
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* Total H Index Rankings
Rankings
686,914
World Rank
479
Country Rank
43
University
Ranking Based On Selection:
43
Engineering & Technology / Environmental Science & Engineering
water governance | transdisciplinarity | climate change | community-based approaches to wate
water governance | transdisciplinarity | climate change | community-based approaches to wate
H-Index Metrics
-
H-Index15
-
i10 Index21
-
Citation Counts906
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* Total H Index Rankings
Rankings
719,169
World Rank
516
Country Rank
44
University
Ranking Based On Selection:
44
Economics & Econometrics / Environmental Economics
impact evaluation | agricultural microeconomics | environmental economic
impact evaluation | agricultural microeconomics | environmental economic
H-Index Metrics
-
H-Index14
-
i10 Index15
-
Citation Counts742
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* Total H Index Rankings
Rankings
721,166
World Rank
521
Country Rank
45
University
Ranking Based On Selection:
45
* Total H Index Rankings
Rankings
790,847
World Rank
623
Country Rank
46
University
Ranking Based On Selection:
46
Engineering & Technology / Environmental Science & Engineering
Resource recovery & reuse | Environmental sustainability assessment | Business model development | Waste reus
Resource recovery & reuse | Environmental sustainability assessment | Business model development | Waste reus
H-Index Metrics
-
H-Index13
-
i10 Index14
-
Citation Counts869
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* Total H Index Rankings
Rankings
829,321
World Rank
669
Country Rank
47
University
Ranking Based On Selection:
47
* Total H Index Rankings
Rankings
879,962
World Rank
732
Country Rank
48
University
Ranking Based On Selection:
48
* Total H Index Rankings
Rankings
984,548
World Rank
892
Country Rank
49
University
Ranking Based On Selection:
49
Engineering & Technology / Environmental Science & Engineering
Water-Energy-Food Nexus | Climate Change Adaptation/Mitigation | Water Resources Management | Water Security | Energy Transitio
Water-Energy-Food Nexus | Climate Change Adaptation/Mitigation | Water Resources Management | Water Security | Energy Transitio
H-Index Metrics
-
H-Index10
-
i10 Index10
-
Citation Counts418
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* Total H Index Rankings
Rankings
992,853
World Rank
911
Country Rank
50
University
Ranking Based On Selection:
50
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