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World Scientist and University Rankings 2026
Spain Engineering & Technology / Earth Sciences 577 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
2,155
World Rank
59
Country Rank
1
University
Ranking Based On Selection:
1
Engineering & Technology / Earth Sciences
aerosols | air quality | geosciences | environmental geochemistr
aerosols | air quality | geosciences | environmental geochemistr
H-Index Metrics
-
H-Index150
-
i10 Index757
-
Citation Counts86,916
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* Total H Index Rankings
Rankings
5,471
World Rank
110
Country Rank
2
University
Ranking Based On Selection:
2
Engineering & Technology / Earth Sciences
Geoquímica ambiental | Contaminación atmosférica | Aerosoles atmosférico
Geoquímica ambiental | Contaminación atmosférica | Aerosoles atmosférico
H-Index Metrics
-
H-Index119
-
i10 Index429
-
Citation Counts51,849
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* Total H Index Rankings
Rankings
12,412
World Rank
241
Country Rank
4
University
Ranking Based On Selection:
3
Engineering & Technology / Earth Sciences
Stellar physics | asteroseismology | stellar structure and dynamics | solar-like stars | red giant
Stellar physics | asteroseismology | stellar structure and dynamics | solar-like stars | red giant
H-Index Metrics
-
H-Index96
-
i10 Index255
-
Citation Counts35,748
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* Total H Index Rankings
Rankings
19,401
World Rank
409
Country Rank
1
University
Ranking Based On Selection:
4
Engineering & Technology / Earth Sciences
soil organic matter | solid-state NMR | biogeochemistry | biocha
soil organic matter | solid-state NMR | biogeochemistry | biocha
H-Index Metrics
-
H-Index85
-
i10 Index233
-
Citation Counts23,628
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* Total H Index Rankings
Rankings
19,512
World Rank
412
Country Rank
2
University
Ranking Based On Selection:
5
Engineering & Technology / Earth Sciences
Environmental Microbiology | Geomicrobiology | Organic Geochemistry | Environmental Chemistry | Cultural Heritag
Environmental Microbiology | Geomicrobiology | Organic Geochemistry | Environmental Chemistry | Cultural Heritag
H-Index Metrics
-
H-Index85
-
i10 Index324
-
Citation Counts23,188
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* Total H Index Rankings
Rankings
20,793
World Rank
437
Country Rank
8
University
Ranking Based On Selection:
6
* Total H Index Rankings
Rankings
24,610
World Rank
529
Country Rank
9
University
Ranking Based On Selection:
7
Engineering & Technology / Earth Sciences
Air pollution | indoor and outdoor air quality | geochemistry | pollution sources | nanoparticle
Air pollution | indoor and outdoor air quality | geochemistry | pollution sources | nanoparticle
H-Index Metrics
-
H-Index79
-
i10 Index177
-
Citation Counts23,171
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* Total H Index Rankings
Rankings
28,058
World Rank
600
Country Rank
10
University
Ranking Based On Selection:
8
Engineering & Technology / Earth Sciences
Environmental Chemistry | organic pollutants | organic carbon | biogeochemistry | anthropogenic chemicals as vector of global chang
Environmental Chemistry | organic pollutants | organic carbon | biogeochemistry | anthropogenic chemicals as vector of global chang
H-Index Metrics
-
H-Index76
-
i10 Index176
-
Citation Counts17,834
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* Total H Index Rankings
Rankings
32,122
World Rank
708
Country Rank
4
University
Ranking Based On Selection:
9
Engineering & Technology / Earth Sciences
global change | paleoclimate | paleolimnology | limnogeology | sedimentolog
global change | paleoclimate | paleolimnology | limnogeology | sedimentolog
H-Index Metrics
-
H-Index73
-
i10 Index202
-
Citation Counts15,388
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* Total H Index Rankings
Rankings
36,222
World Rank
796
Country Rank
1
University
Ranking Based On Selection:
10
Engineering & Technology / Earth Sciences
Structural Geology | Tectonics | Salt Tectonics | Geodynamic
Structural Geology | Tectonics | Salt Tectonics | Geodynamic
H-Index Metrics
-
H-Index70
-
i10 Index174
-
Citation Counts16,346
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* Total H Index Rankings
Rankings
44,208
World Rank
1,017
Country Rank
5
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
45,404
World Rank
1,046
Country Rank
79
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
46,411
World Rank
1,084
Country Rank
6
University
Ranking Based On Selection:
13
Engineering & Technology / Earth Sciences
organic geochemistry | soil organic matter | humic substances | lignin | woo
organic geochemistry | soil organic matter | humic substances | lignin | woo
H-Index Metrics
-
H-Index65
-
i10 Index215
-
Citation Counts16,227
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* Total H Index Rankings
Rankings
48,127
World Rank
1,117
Country Rank
25
University
Ranking Based On Selection:
14
Engineering & Technology / Earth Sciences
Stable Isotope Biogeochemistry | Earth Science | Climate Chang
Stable Isotope Biogeochemistry | Earth Science | Climate Chang
H-Index Metrics
-
H-Index64
-
i10 Index225
-
Citation Counts13,037
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Premium Data
* Total H Index Rankings
Rankings
54,676
World Rank
1,303
Country Rank
9
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
61,414
World Rank
1,518
Country Rank
2
University
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
67,558
World Rank
1,715
Country Rank
32
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
69,803
World Rank
1,769
Country Rank
6
University
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
70,100
World Rank
1,778
Country Rank
43
University
Ranking Based On Selection:
19
* Total H Index Rankings
Rankings
74,294
World Rank
1,925
Country Rank
95
University
Ranking Based On Selection:
20
Engineering & Technology / Earth Sciences
Petrology | Geochemistry | Geochronology | Variscan Orogen | Ophiolite
Petrology | Geochemistry | Geochronology | Variscan Orogen | Ophiolite
H-Index Metrics
-
H-Index55
-
i10 Index118
-
Citation Counts8,908
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* Total H Index Rankings
Rankings
75,825
World Rank
1,963
Country Rank
147
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
83,766
World Rank
2,245
Country Rank
24
University
Ranking Based On Selection:
22
Engineering & Technology / Earth Sciences
soil biogeochemistry | N2O | greenhouse gas emissions | nitrogen cycle | nitrous_oxid
soil biogeochemistry | N2O | greenhouse gas emissions | nitrogen cycle | nitrous_oxid
H-Index Metrics
-
H-Index52
-
i10 Index81
-
Citation Counts14,767
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* Total H Index Rankings
Rankings
84,111
World Rank
2,255
Country Rank
1
University
Ranking Based On Selection:
23
Engineering & Technology / Earth Sciences
Planetary Geology | Astrobiology | Analogs | Mars Moon Geoethic
Planetary Geology | Astrobiology | Analogs | Mars Moon Geoethic
H-Index Metrics
-
H-Index52
-
i10 Index161
-
Citation Counts15,453
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Premium Data
* Total H Index Rankings
Rankings
85,561
World Rank
2,308
Country Rank
3
University
Ranking Based On Selection:
24
* Total H Index Rankings
Rankings
86,064
World Rank
2,325
Country Rank
9
University
Ranking Based On Selection:
25
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