University, Subject, Country, Region, World
Tokyo Institute of Technology 25 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 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 Jan 31, 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 (870.053) 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 IndexRankings
Ranking Based On Selection: 1
Isotope Biogeochemistry
Environmental Chemistry
Isotopomer
Isotopologue
Metrics
H-Index
i10 Index
Citation Counts
70
288
17,272
* Total H IndexRankings
Ranking Based On Selection: 2
Geotechnical Earthquake Engineering
Geotechnical Engineering
Metrics
H-Index
i10 Index
Citation Counts
56
139
17,742
* Total H IndexRankings
Ranking Based On Selection: 3
Metrics
H-Index
i10 Index
Citation Counts
44
82
5,885
* Total H IndexRankings
Ranking Based On Selection: 4
Astrophysics
Planetary Science
Metrics
H-Index
i10 Index
Citation Counts
43
84
5,885
* Total H IndexRankings
Ranking Based On Selection: 5
Earthquake Engineering
Remote Sensing
Metrics
H-Index
i10 Index
Citation Counts
43
151
6,933
* Total H IndexRankings
Ranking Based On Selection: 6
geomagnetism
volcanology
seismology
magnetotellurics
geothermal
Metrics
H-Index
i10 Index
Citation Counts
39
89
4,638
* Total H IndexRankings
Ranking Based On Selection: 7
Geochemistry
Cosmochemistry
Metrics
H-Index
i10 Index
Citation Counts
33
68
3,487
* Total H IndexRankings
Ranking Based On Selection: 8
Earth science
High-pressure mineral physics
Metrics
H-Index
i10 Index
Citation Counts
28
37
2,438
* Total H IndexRankings
Ranking Based On Selection: 9
Earth Science
Metrics
H-Index
i10 Index
Citation Counts
27
50
2,456
* Total H IndexRankings
Ranking Based On Selection: 10
Microscopy Science
Cryobiology
Origin of Life
Magnetite Biomineralization
Metrics
H-Index
i10 Index
Citation Counts
25
33
3,427
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* Total H IndexRankings
Ranking Based On Selection: 11
Isotopologue
Atmospheric Chemistry
Biogeochemistry
Environmental Chemistry
Metrics
H-Index
i10 Index
Citation Counts
23
45
1,600
* Total H IndexRankings
Ranking Based On Selection: 12
Earthquake Engineering
Structural Engineering
Solid Mechanics
Metrics
H-Index
i10 Index
Citation Counts
23
50
1,765
* Total H IndexRankings
Ranking Based On Selection: 13
Geotechnical engineering
Foundation engineering
Soil-Structure Interaction
Metrics
H-Index
i10 Index
Citation Counts
17
32
1,822
* Total H IndexRankings
Ranking Based On Selection: 14
Geology
Metrics
H-Index
i10 Index
Citation Counts
12
14
395
* Total H IndexRankings
Ranking Based On Selection: 15
Seismology
Metrics
H-Index
i10 Index
Citation Counts
11
11
358
* Total H IndexRankings
Ranking Based On Selection: 16
Isotope geochemistry
Metrics
H-Index
i10 Index
Citation Counts
10
10
472
* Total H IndexRankings
Ranking Based On Selection: 17
Early Earth
Early silicate Earth differentiation
isotope geochemistry
Metrics
H-Index
i10 Index
Citation Counts
9
9
472
* Total H IndexRankings
Ranking Based On Selection: 18
Geotechnical Engineering
Metrics
H-Index
i10 Index
Citation Counts
8
7
201
* Total H IndexRankings
Ranking Based On Selection: 19
Deep Earth
Geophysics
Metrics
H-Index
i10 Index
Citation Counts
7
5
145
* Total H IndexRankings
Ranking Based On Selection: 20
earthquake resistant design
precast/prestressed structures
development of testing systems
development of analytical model
Metrics
H-Index
i10 Index
Citation Counts
4
3
64
* Total H IndexRankings
Ranking Based On Selection: 21
Earthquake Engineering
Structural Engineering
Metrics
H-Index
i10 Index
Citation Counts
4
2
129
* Total H IndexRankings
Ranking Based On Selection: 22
Seismology
Volcanology
Tectonophysics
Metrics
H-Index
i10 Index
Citation Counts
2
1
17
* Total H IndexRankings
Ranking Based On Selection: 23
Seismic Isolation
Metrics
H-Index
i10 Index
Citation Counts
1
0
8
* Total H IndexRankings
Ranking Based On Selection: 24
Earth Science
High-pressure mineral physics
Metrics
H-Index
i10 Index
Citation Counts
1
0
3
* Total H IndexRankings
Ranking Based On Selection: 25
Seismology
Machine learning
Source process
Foreshock seismicity
Earthquake cycle
Metrics
H-Index
i10 Index
Citation Counts
1
0
1
Naohiro Yoshida
Metrics
H-Index
i10-Index
Citation Counts
70
288
17,272
Isotope Biogeochemistry
Environmental Chemistry
Isotopomer
Isotopologue
Kohji Tokimatsu
Metrics
H-Index
i10-Index
Citation Counts
56
139
17,742
Geotechnical Earthquake Engineering
Geotechnical Engineering
Yuichiro Ueno
Metrics
H-Index
i10-Index
Citation Counts
44
82
5,885
Satoshi Okuzumi
Metrics
H-Index
i10-Index
Citation Counts
43
84
5,885
Astrophysics
Planetary Science
Masashi Matsuoka
Metrics
H-Index
i10-Index
Citation Counts
43
151
6,933
Earthquake Engineering
Remote Sensing
Yasuo Ogawa
Metrics
H-Index
i10-Index
Citation Counts
39
89
4,638
geomagnetism
volcanology
seismology
magnetotellurics
geothermal
Tetsuya Yokoyama
Metrics
H-Index
i10-Index
Citation Counts
33
68
3,487
Kenji Ohta
Metrics
H-Index
i10-Index
Citation Counts
28
37
2,438
Earth science
High-pressure mineral physics
Akira Ishikawa
Metrics
H-Index
i10-Index
Citation Counts
27
50
2,456
Atsuko Kobayashi
Metrics
H-Index
i10-Index
Citation Counts
25
33
3,427
Microscopy Science
Cryobiology
Origin of Life
Magnetite Biomineralization
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Shohei Hattori
Metrics
H-Index
i10-Index
Citation Counts
23
45
1,600
Isotopologue
Atmospheric Chemistry
Biogeochemistry
Environmental Chemistry
Anil C Wijeyewickrema
Metrics
H-Index
i10-Index
Citation Counts
23
50
1,765
Earthquake Engineering
Structural Engineering
Solid Mechanics
Shuji Tamura
Metrics
H-Index
i10-Index
Citation Counts
17
32
1,822
Geotechnical engineering
Foundation engineering
Soil-Structure Interaction
Tomohiko Sato
Metrics
H-Index
i10-Index
Citation Counts
12
14
395
Naofumi Aso
Metrics
H-Index
i10-Index
Citation Counts
11
11
358
Naizhong Zhang
Metrics
H-Index
i10-Index
Citation Counts
10
10
472
Ikshu Gautam
Metrics
H-Index
i10-Index
Citation Counts
9
9
472
Early Earth
Early silicate Earth differentiation
isotope geochemistry
Kazuki Horikoshi
Metrics
H-Index
i10-Index
Citation Counts
8
7
201
Yuki Suzuki
Metrics
H-Index
i10-Index
Citation Counts
7
5
145
Shreya Thusoo
Metrics
H-Index
i10-Index
Citation Counts
4
3
64
earthquake resistant design
precast/prestressed structures
development of testing systems
development of analytical model
Diana Ene
Metrics
H-Index
i10-Index
Citation Counts
4
2
129
Earthquake Engineering
Structural Engineering
Li Jiaxi 李家熙
Metrics
H-Index
i10-Index
Citation Counts
1
0
8
Yoshihiro Nagaya
Metrics
H-Index
i10-Index
Citation Counts
1
0
3
Earth Science
High-pressure mineral physics
Ritsuya Shibata
Metrics
H-Index
i10-Index
Citation Counts
1
0
1
Seismology
Machine learning
Source process
Foreshock seismicity
Earthquake cycle