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World Scientist and University Rankings 2026
Engineering & Technology / Earth Sciences 29.291 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 (1.131.752) 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
1,921
World Rank
792
Country Rank
1
University
Ranking Based On Selection:
1
* Total H Index Rankings
Rankings
1,953
World Rank
14
Country Rank
7
University
Ranking Based On Selection:
2
Engineering & Technology / Earth Sciences
evolution | genomics | population genetics | ancient DNA | environmental DN
evolution | genomics | population genetics | ancient DNA | environmental DN
H-Index Metrics
-
H-Index153
-
i10 Index331
-
Citation Counts85,426
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* Total H Index Rankings
Rankings
1,977
World Rank
61
Country Rank
1
University
Ranking Based On Selection:
3
Engineering & Technology / Earth Sciences
geochemistry | petrology | isotopic geochemistry | mantle evolutio
geochemistry | petrology | isotopic geochemistry | mantle evolutio
H-Index Metrics
-
H-Index153
-
i10 Index726
-
Citation Counts105,341
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* Total H Index Rankings
Rankings
2,052
World Rank
62
Country Rank
1
University
Ranking Based On Selection:
4
* Total H Index Rankings
Rankings
2,104
World Rank
179
Country Rank
1
University
Ranking Based On Selection:
5
Engineering & Technology / Earth Sciences
Biogeochemistry of phosphorus | sulphur and trace elements in soil-plant system
Biogeochemistry of phosphorus | sulphur and trace elements in soil-plant system
H-Index Metrics
-
H-Index151
-
i10 Index425
-
Citation Counts81,989
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* Total H Index Rankings
Rankings
2,155
World Rank
59
Country Rank
1
University
Ranking Based On Selection:
6
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
2,392
World Rank
1,010
Country Rank
6
University
Ranking Based On Selection:
7
Engineering & Technology / Earth Sciences
Remote Sensing | Climate | Biogeosciences | Geosciences | Ecolog
Remote Sensing | Climate | Biogeosciences | Geosciences | Ecolog
H-Index Metrics
-
H-Index146
-
i10 Index360
-
Citation Counts97,705
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* Total H Index Rankings
Rankings
2,469
World Rank
86
Country Rank
1
University
Ranking Based On Selection:
8
Engineering & Technology / Earth Sciences
Earth and Environmental Sciences [China University of Geosciences Beijing
Earth and Environmental Sciences [China University of Geosciences Beijing
H-Index Metrics
-
H-Index145
-
i10 Index1,261
-
Citation Counts98,788
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* Total H Index Rankings
Rankings
2,518
World Rank
87
Country Rank
6
University
Ranking Based On Selection:
9
Engineering & Technology / Earth Sciences
atmospheric chemistry | emissions | satellite remote sensing | air qualit
atmospheric chemistry | emissions | satellite remote sensing | air qualit
H-Index Metrics
-
H-Index144
-
i10 Index400
-
Citation Counts80,765
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* Total H Index Rankings
Rankings
2,586
World Rank
222
Country Rank
7
University
Ranking Based On Selection:
10
* Total H Index Rankings
Rankings
2,657
World Rank
1,139
Country Rank
8
University
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
3,026
World Rank
263
Country Rank
9
University
Ranking Based On Selection:
12
* Total H Index Rankings
Rankings
3,046
World Rank
134
Country Rank
1
University
Ranking Based On Selection:
13
Engineering & Technology / Earth Sciences
Earth System science | biogeochemical cycles | extreme events | eco-hydrology | machine learnin
Earth System science | biogeochemical cycles | extreme events | eco-hydrology | machine learnin
H-Index Metrics
-
H-Index138
-
i10 Index358
-
Citation Counts105,512
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* Total H Index Rankings
Rankings
3,479
World Rank
1,519
Country Rank
19
University
Ranking Based On Selection:
14
Engineering & Technology / Earth Sciences
planet imaging | stellar astrophysics | interstellar mediu
planet imaging | stellar astrophysics | interstellar mediu
H-Index Metrics
-
H-Index134
-
i10 Index359
-
Citation Counts130,654
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* Total H Index Rankings
Rankings
3,840
World Rank
1,687
Country Rank
1
University
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
3,896
World Rank
137
Country Rank
5
University
Ranking Based On Selection:
16
Engineering & Technology / Earth Sciences
Petrology | Geochemistry | Tectonics | Geodynamics | Geophysic
Petrology | Geochemistry | Tectonics | Geodynamics | Geophysic
H-Index Metrics
-
H-Index130
-
i10 Index490
-
Citation Counts72,317
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* Total H Index Rankings
Rankings
3,927
World Rank
1,737
Country Rank
12
University
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
4,149
World Rank
183
Country Rank
1
University
Ranking Based On Selection:
18
Engineering & Technology / Earth Sciences
Crustal evolution | geochronology | Precambrian tectonics | palaeomagnetis
Crustal evolution | geochronology | Precambrian tectonics | palaeomagnetis
H-Index Metrics
-
H-Index128
-
i10 Index422
-
Citation Counts57,466
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* Total H Index Rankings
Rankings
4,270
World Rank
100
Country Rank
12
University
Ranking Based On Selection:
19
Engineering & Technology / Earth Sciences
Biogeochemistry | Organic Geochemistry | Oceanography | Stable Isotopes | Geochemistr
Biogeochemistry | Organic Geochemistry | Oceanography | Stable Isotopes | Geochemistr
H-Index Metrics
-
H-Index127
-
i10 Index392
-
Citation Counts65,562
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* Total H Index Rankings
Rankings
4,327
World Rank
1,919
Country Rank
42
University
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
4,576
World Rank
2,029
Country Rank
46
University
Ranking Based On Selection:
21
* Total H Index Rankings
Rankings
4,583
World Rank
2,032
Country Rank
44
University
Ranking Based On Selection:
22
* Total H Index Rankings
Rankings
4,589
World Rank
2,037
Country Rank
92
University
Ranking Based On Selection:
23
Engineering & Technology / Earth Sciences
Surface/Interface Chemistry | Envronmental Chemistry/Geochemistry | Nanomaterial
Surface/Interface Chemistry | Envronmental Chemistry/Geochemistry | Nanomaterial
H-Index Metrics
-
H-Index125
-
i10 Index394
-
Citation Counts50,474
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* Total H Index Rankings
Rankings
4,685
World Rank
2,080
Country Rank
17
University
Ranking Based On Selection:
24
Engineering & Technology / Earth Sciences
carbon cycle | biogeochemistry | climate change | land use change | sustainabilit
carbon cycle | biogeochemistry | climate change | land use change | sustainabilit
H-Index Metrics
-
H-Index124
-
i10 Index271
-
Citation Counts81,393
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* Total H Index Rankings
Rankings
4,725
World Rank
2,102
Country Rank
48
University
Ranking Based On Selection:
25
Engineering & Technology / Earth Sciences
ozone depletion | stratosphere | climate and climate chang
ozone depletion | stratosphere | climate and climate chang
H-Index Metrics
-
H-Index124
-
i10 Index403
-
Citation Counts91,080
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Premium Data
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