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World Scientist and University Rankings 2026
Portugal Engineering & Technology 117 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 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
10,255
World Rank
24
Country Rank
5
University
Ranking Based On Selection:
1
Engineering & Technology / Earth Sciences
Geoscience | Climatology | Hydrology | Environmental Sciences | Astronom
Geoscience | Climatology | Hydrology | Environmental Sciences | Astronom
H-Index Metrics
-
H-Index101
-
i10 Index303
-
Citation Counts39,696
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* Total H Index Rankings
Rankings
69,748
World Rank
223
Country Rank
6
University
Ranking Based On Selection:
2
Engineering & Technology / Earth Sciences
Coastal Dynamics | Coastal Hazards | Coastal Management | Marine Geology | Marine Energ
Coastal Dynamics | Coastal Hazards | Coastal Management | Marine Geology | Marine Energ
H-Index Metrics
-
H-Index56
-
i10 Index183
-
Citation Counts9,253
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* Total H Index Rankings
Rankings
77,051
World Rank
243
Country Rank
41
University
Ranking Based On Selection:
3
* Total H Index Rankings
Rankings
98,986
World Rank
328
Country Rank
1
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
117,468
World Rank
390
Country Rank
74
University
Ranking Based On Selection:
5
* Total H Index Rankings
Rankings
121,748
World Rank
401
Country Rank
75
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
128,376
World Rank
428
Country Rank
82
University
Ranking Based On Selection:
7
* Total H Index Rankings
Rankings
134,429
World Rank
454
Country Rank
89
University
Ranking Based On Selection:
8
Engineering & Technology / Earth Sciences
Geotechnics | Transportation geotechnics | Soil Mechanics | Railway Geotechnics | Pavement Geotechnic
Geotechnics | Transportation geotechnics | Soil Mechanics | Railway Geotechnics | Pavement Geotechnic
H-Index Metrics
-
H-Index43
-
i10 Index157
-
Citation Counts6,704
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* Total H Index Rankings
Rankings
161,439
World Rank
576
Country Rank
115
University
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
176,495
World Rank
641
Country Rank
5
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
177,011
World Rank
645
Country Rank
6
University
Ranking Based On Selection:
11
Engineering & Technology / Earth Sciences
Biotechnology & Applied Microbiology | Energy & Fuels | Microbiology | Biorefiner
Biotechnology & Applied Microbiology | Energy & Fuels | Microbiology | Biorefiner
H-Index Metrics
-
H-Index38
-
i10 Index76
-
Citation Counts7,140
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* Total H Index Rankings
Rankings
177,549
World Rank
650
Country Rank
128
University
Ranking Based On Selection:
12
Engineering & Technology / Earth Sciences
Geology | volcanology | volcano-stratigraphy | geological mapping | neotectonic
Geology | volcanology | volcano-stratigraphy | geological mapping | neotectonic
H-Index Metrics
-
H-Index38
-
i10 Index83
-
Citation Counts4,690
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* Total H Index Rankings
Rankings
178,060
World Rank
655
Country Rank
129
University
Ranking Based On Selection:
13
Engineering & Technology / Earth Sciences
Structural Geology | Tectonics | Tectonophysics | Geodynamic
Structural Geology | Tectonics | Tectonophysics | Geodynamic
H-Index Metrics
-
H-Index38
-
i10 Index96
-
Citation Counts4,375
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* Total H Index Rankings
Rankings
197,067
World Rank
720
Country Rank
25
University
Ranking Based On Selection:
14
Engineering & Technology / Earth Sciences
geostatistics | optimization | groundwater | environmental | ris
geostatistics | optimization | groundwater | environmental | ris
H-Index Metrics
-
H-Index36
-
i10 Index70
-
Citation Counts3,734
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* Total H Index Rankings
Rankings
215,174
World Rank
776
Country Rank
4
University
Ranking Based On Selection:
15
Engineering & Technology / Earth Sciences
Earth Sciences | Environmental Sciences | Sustainability | Statistics and Probabilit
Earth Sciences | Environmental Sciences | Sustainability | Statistics and Probabilit
H-Index Metrics
-
H-Index34
-
i10 Index103
-
Citation Counts5,647
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Premium Data
* Total H Index Rankings
Rankings
250,739
World Rank
915
Country Rank
35
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
253,047
World Rank
924
Country Rank
197
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
262,891
World Rank
972
Country Rank
207
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
266,969
World Rank
991
Country Rank
30
University
Ranking Based On Selection:
19
Engineering & Technology / Earth Sciences
Geodynamics | GIS Mapping | Geomechanics | Groundwater | Rock Engineerin
Geodynamics | GIS Mapping | Geomechanics | Groundwater | Rock Engineerin
H-Index Metrics
-
H-Index31
-
i10 Index90
-
Citation Counts3,519
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Premium Data
* Total H Index Rankings
Rankings
267,910
World Rank
994
Country Rank
217
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
276,533
World Rank
1,022
Country Rank
222
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
291,552
World Rank
1,088
Country Rank
8
University
Ranking Based On Selection:
22
Engineering & Technology / Earth Sciences
coastal geology | geomorphology | sedimentology | geophysic
coastal geology | geomorphology | sedimentology | geophysic
H-Index Metrics
-
H-Index29
-
i10 Index53
-
Citation Counts2,497
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Premium Data
* Total H Index Rankings
Rankings
294,363
World Rank
1,101
Country Rank
55
University
Ranking Based On Selection:
23
* Total H Index Rankings
Rankings
295,413
World Rank
1,107
Country Rank
238
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
297,389
World Rank
1,117
Country Rank
33
University
Ranking Based On Selection:
25
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