University, Subject, Country, Region, World

Research Institute for Humanity and Nature 20 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 yearsAs of Jan 30, 2025, the rankings are determined according to the Total H IndexBETA 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 (873.690) 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
Ichiro Tayasu
isotope ecology
environmental isotope studies
Metrics
H-Index
i10 Index
Citation Counts
42
101
5,294
* Total H IndexRankings
Ranking Based On Selection: 2
Yamanaka, Manabu D
Atmosphere-Hydrosphere Sciences
Metrics
H-Index
i10 Index
Citation Counts
39
106
5,858
* Total H IndexRankings
Ranking Based On Selection: 3
Keiichiro Kanemoto|金本圭一朗
Industrial Ecology
Corporate Sustainability
Computational Sustainability
Input-Output Analysis
Metrics
H-Index
i10 Index
Citation Counts
35
53
11,575
* Total H IndexRankings
Ranking Based On Selection: 4
Tanbir Singh
Air pollution
Biomass burning
Emission Inventories
Metrics
H-Index
i10 Index
Citation Counts
18
20
1,485
* Total H IndexRankings
Ranking Based On Selection: 5
Itsuki C Handoh
Chemical Pollution
Climate Change
Global Biogeochemical Cycles
Mathematical Modelling
Bayesian Analysis
Metrics
H-Index
i10 Index
Citation Counts
17
20
939
* Total H IndexRankings
Ranking Based On Selection: 8
Deepak Singh (ディーパックシン)|D Singh
Energy and Environmental Governance
Policy Design & Futures Studies
STS
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,086
* Total H IndexRankings
Ranking Based On Selection: 9
Shin Ki-Cheol
同位体地球化学
Metrics
H-Index
i10 Index
Citation Counts
13
22
666
* Total H IndexRankings
Ranking Based On Selection: 10
Hadi Farabi-Asl
Energy systems analysis
Metrics
H-Index
i10 Index
Citation Counts
11
11
690

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H IndexRankings
Ranking Based On Selection: 11
Norie Tamura
natural resource management
commons
fishery
agriculture
forestry
Metrics
H-Index
i10 Index
Citation Counts
10
10
519
* Total H IndexRankings
Ranking Based On Selection: 12
Yasuhisa Kondo
Archaeological geography
Transdisciplinary methodology
Metrics
H-Index
i10 Index
Citation Counts
9
8
281
* Total H IndexRankings
Ranking Based On Selection: 13
Monali Maiti
Supramolecular gels
Amphiphile self-assembly
Drug encapsulation and release
Porous materials
Metrics
H-Index
i10 Index
Citation Counts
8
7
148
* Total H IndexRankings
Ranking Based On Selection: 14
Muhamad Fahmi
bioinformatics
computational biology
molecular evolution
Metrics
H-Index
i10 Index
Citation Counts
7
7
237
* Total H IndexRankings
Ranking Based On Selection: 15
Kazuhiko Ota
Environmental ethics
Food ethics
Sustainability transition
Milieu
Metrics
H-Index
i10 Index
Citation Counts
7
6
408
* Total H IndexRankings
Ranking Based On Selection: 17
Yuya Katafuchi|片渕結矢
Econometrics
Applied Econometrics
Industrial Ecology
Metrics
H-Index
i10 Index
Citation Counts
4
3
140
* Total H IndexRankings
Ranking Based On Selection: 18
Yuko Shirai
Area Studies
Rural-Urban Interaction
Metrics
H-Index
i10 Index
Citation Counts
4
3
92
* Total H IndexRankings
Ranking Based On Selection: 20
Kazuyuki Maeda
Governance Leadership
Metrics
H-Index
i10 Index
Citation Counts
2
0
5
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Ichiro Tayasu
Metrics
H-Index
i10-Index
Citation Counts
42
101
5,294
isotope ecology
environmental isotope studies
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Yamanaka, Manabu D
Metrics
H-Index
i10-Index
Citation Counts
39
106
5,858
Atmosphere-Hydrosphere Sciences
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Keiichiro Kanemoto|金本圭一朗
Metrics
H-Index
i10-Index
Citation Counts
35
53
11,575
Industrial Ecology
Corporate Sustainability
Computational Sustainability
Input-Output Analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Tanbir Singh
Metrics
H-Index
i10-Index
Citation Counts
18
20
1,485
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Itsuki C Handoh
Metrics
H-Index
i10-Index
Citation Counts
17
20
939
Chemical Pollution
Climate Change
Global Biogeochemical Cycles
Mathematical Modelling
Bayesian Analysis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
remote sensing
urbanization
air pollution
urban-environment systems
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Ahmad Dhiaulhaq
Metrics
H-Index
i10-Index
Citation Counts
13
16
988
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Deepak Singh (ディーパックシン)|D Singh
Metrics
H-Index
i10-Index
Citation Counts
13
13
1,086
Energy and Environmental Governance
Policy Design & Futures Studies
STS
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Shin Ki-Cheol
Metrics
H-Index
i10-Index
Citation Counts
13
22
666
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Hadi Farabi-Asl
Metrics
H-Index
i10-Index
Citation Counts
11
11
690
Energy systems analysis

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Norie Tamura
Metrics
H-Index
i10-Index
Citation Counts
10
10
519
natural resource management
commons
fishery
agriculture
forestry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Yasuhisa Kondo
Metrics
H-Index
i10-Index
Citation Counts
9
8
281
Archaeological geography
Transdisciplinary methodology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Monali Maiti
Metrics
H-Index
i10-Index
Citation Counts
8
7
148
Supramolecular gels
Amphiphile self-assembly
Drug encapsulation and release
Porous materials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Muhamad Fahmi
Metrics
H-Index
i10-Index
Citation Counts
7
7
237
bioinformatics
computational biology
molecular evolution
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Kazuhiko Ota
Metrics
H-Index
i10-Index
Citation Counts
7
6
408
Environmental ethics
Food ethics
Sustainability transition
Milieu
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Satomi Kimijima
Metrics
H-Index
i10-Index
Citation Counts
6
6
129
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Yuya Katafuchi|片渕結矢
Metrics
H-Index
i10-Index
Citation Counts
4
3
140
Econometrics
Applied Econometrics
Industrial Ecology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Yuko Shirai
Metrics
H-Index
i10-Index
Citation Counts
4
3
92
Area Studies
Rural-Urban Interaction
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Daiki Tomojiri
Metrics
H-Index
i10-Index
Citation Counts
4
3
57
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Kazuyuki Maeda
Metrics
H-Index
i10-Index
Citation Counts
2
0
5