H-Index
Rankings
Japan Scientists H-Index Engineering & Technology / Environmental Science & Engineering Rankings in Japan 2025
AD Scientific Index evaluates the academic productivity and efficiency of scientists and institutions based on the H-index, i10 index, and citation counts. In addition to total H-index rankings, you can also explore rankings and analyses by "Scientists Last 6 Years H-index" and by subject.
* Total H Index Rankings
Ranking Based
On Selection :1
Biological wastewater treatment
Biofilm
Anaerobic digestion
Anammox
MBR
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
70
0.824
* Total H Index Rankings
Ranking Based
On Selection :2
Urban Analytics
Urban Policy
Sustainable Operations
Climate Change Economics
Wellbeing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
69
0.831
* Total H Index Rankings
Ranking Based
On Selection :3
Climate Change
Monsoon
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
48
0.600
* Total H Index Rankings
Ranking Based
On Selection :4
Climate
climate modelling
ice sheet dynamics
paleoclimatology
pale oceanography
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
79
59
0.747
* Total H Index Rankings
Ranking Based
On Selection :5
Climate change
Integrated Assessment Models
Energy modeling
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
74
68
0.919
* Total H Index Rankings
Ranking Based
On Selection :6
Plant-microbe interactions
rhizobial ecology
genome evolution
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
61
37
0.607
* Total H Index Rankings
Ranking Based
On Selection :7
Environmental Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
34
0.576
* Total H Index Rankings
Ranking Based
On Selection :8
oceanography
biogeochemistry
geochemistry
carbon cycle
climate change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
30
0.508
* Total H Index Rankings
Ranking Based
On Selection :9
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
34
0.586
* Total H Index Rankings
Ranking Based
On Selection :10
Waste and wastewater treatment
biogasification
nutrients removal and recovery
heavy metals
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
56
50
0.893
* Total H Index Rankings
Ranking Based
On Selection :11
climate change
biogeochemistry
inverse modeling
data assimilation
remote sensing
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
37
0.673
* Total H Index Rankings
Ranking Based
On Selection :12
Environmental Toxicology
Chemical Pollution
Environmental Chemistry
Ecotoxicology
Aquatic Toxicology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
23
0.418
* Total H Index Rankings
Ranking Based
On Selection :13
Environmental Virology
Wastewater-based Epidemiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
44
0.830
* Total H Index Rankings
Ranking Based
On Selection :14
Climate Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
42
0.792
* Total H Index Rankings
Ranking Based
On Selection :15
Building Enviromental Engineering
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
30
0.566
* Total H Index Rankings
Ranking Based
On Selection :16
Fuel Cells
Electrolyzers
Sensors
Batteries
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
23
0.434
* Total H Index Rankings
Ranking Based
On Selection :17
environmental studies
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
36
0.706
* Total H Index Rankings
Ranking Based
On Selection :18
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
28
0.549
* Total H Index Rankings
Ranking Based
On Selection :19
eDNA Research
Freshwater Ecology
Ecology of Infectious Diseases
Animal Physiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
50
45
0.900
* Total H Index Rankings
Ranking Based
On Selection :20
Water
hydrology
floods
droughts
environmental flows
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
37
0.755
* Total H Index Rankings
Ranking Based
On Selection :21
Nitrification inhibition
Biological nitrification inhibition
nitrous oxide emissions
global warming
climate change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
36
0.735
* Total H Index Rankings
Ranking Based
On Selection :22
Environmental Sciences
Mineralogy
Geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
31
0.633
* Total H Index Rankings
Ranking Based
On Selection :23
Environmental Science
Remote Sensing
GIS
REDD+
Sustainability Science
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
* Total H Index Rankings
Ranking Based
On Selection :24
GIScience
spatial analysis
health geographies
crime epidemiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
39
0.813
* Total H Index Rankings
Ranking Based
On Selection :25
wastewater treatment
stirred tank
photocatalyst
zero-valent iron
Fenton process
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
28
0.583
李玉友|李 玉友, Gyokuyu RI
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
70
0.824
Biological wastewater treatment
Biofilm
Anaerobic digestion
Anammox
MBR
Shunsuke Managi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
69
0.831
Urban Analytics
Urban Policy
Sustainable Operations
Climate Change Economics
Wellbeing
Akio Kitoh
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
48
0.600
Climate Change
Monsoon
Ayako Abe Ouchi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
79
59
0.747
Climate
climate modelling
ice sheet dynamics
paleoclimatology
pale oceanography
Shinichiro Fujimori
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
74
68
0.919
Climate change
Integrated Assessment Models
Energy modeling
Kiwamu Minamisawa
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
61
37
0.607
Plant-microbe interactions
rhizobial ecology
genome evolution
Shigeki Masunaga
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
34
0.576
Environmental Science
Yukihiro Nojiri
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
59
30
0.508
oceanography
biogeochemistry
geochemistry
carbon cycle
climate change
Satoshi Kaneco
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
58
34
0.586
Zhongfang Lei
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
56
50
0.893
Waste and wastewater treatment
biogasification
nutrients removal and recovery
heavy metals
Shamil Maksyutov
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
37
0.673
climate change
biogeochemistry
inverse modeling
data assimilation
remote sensing
Hisato Iwata
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
55
23
0.418
Environmental Toxicology
Chemical Pollution
Environmental Chemistry
Ecotoxicology
Aquatic Toxicology
Masaaki Kitajima
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
44
0.830
Environmental Virology
Wastewater-based Epidemiology
Hideo Shiogama
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
42
0.792
Shinsuke Kato
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
30
0.566
Building Enviromental Engineering
Takashi Hibino
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
53
23
0.434
Fuel Cells
Electrolyzers
Sensors
Batteries
Kazuhiko Takeuchi
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
36
0.706
environmental studies
Takashi Kunito
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
51
28
0.549
Toshifumi Minamoto
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
50
45
0.900
eDNA Research
Freshwater Ecology
Ecology of Infectious Diseases
Animal Physiology
Vladimir Smakhtin
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
37
0.755
Water
hydrology
floods
droughts
environmental flows
Subbarao Guntur
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
36
0.735
Nitrification inhibition
Biological nitrification inhibition
nitrous oxide emissions
global warming
climate change
Satoshi Utsunomiya
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
49
31
0.633
Environmental Sciences
Mineralogy
Geochemistry
Ram Avtar
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
44
0.917
Environmental Science
Remote Sensing
GIS
REDD+
Sustainability Science
Tomoki Nakaya
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
39
0.813
GIScience
spatial analysis
health geographies
crime epidemiology
Yoshinori Kawase
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
48
28
0.583
wastewater treatment
stirred tank
photocatalyst
zero-valent iron
Fenton process