Subject Rankings

World Engineering & Technology Subject Rankings 2025

AD Scientific Index (Alper-Doger Scientific Index) offers the broadest spectrum of branches, providing analysis in 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses can be based on indicators such as the H-index, i10-index, and citation count, as well as their values from the last 6 years. As of Nov 21, 2024, rankings are according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in beta. This is due to the exclusion of (873.864) scientists categorized under 'others,' whose profiles cannot yet be determined, edited, or classified. As these fields are updated, the rankings will adjust accordingly. Please keep this in mind. See Also: [University Subject Rankings]

Total 19.907 scientist, 200 country, 15.241 institution
* Total H IndexRankings
Ranking Based On Selection :1
Pete Smith
Global change
soils
carbon
climate change
mitigation
Metrics
H-Index
i10 Index
Citation Counts
176
831
129,555
* Total H IndexRankings
Ranking Based On Selection :2
Philip Jones
Climate
Climate Change
Paleoclimate
Metrics
H-Index
i10 Index
Citation Counts
173
637
152,999
* Total H IndexRankings
Ranking Based On Selection :3
Robert B Jackson
biogeochemistry
ecology
environmental science
climate change
ecohydrology
Metrics
H-Index
i10 Index
Citation Counts
170
485
159,936
* Total H IndexRankings
Ranking Based On Selection :4
Zhanhu Guo
Polymer nanocomposites
Conducting Polymers
Sustainability
Environmental Engineering
Electronics
Metrics
H-Index
i10 Index
Citation Counts
169
953
98,928
* Total H IndexRankings
Ranking Based On Selection :5
Bruce E Logan
Microbial fuel cells
microbial electrolysis cells
thermal batteries
desalination
water electrolyzers
Metrics
H-Index
i10 Index
Citation Counts
168
541
120,794
* Total H IndexRankings
Ranking Based On Selection :6
Detlef P. Van Vuuren
integrated assessment
climate change
environmental science
global change
sustainable development
Metrics
H-Index
i10 Index
Citation Counts
164
565
193,439
* Total H IndexRankings
Ranking Based On Selection :8
Christopher B Field
climate change
ecology
carbon cycle
leaf nitrogen
Metrics
H-Index
i10 Index
Citation Counts
162
380
169,710
* Total H IndexRankings
Ranking Based On Selection :9
Baoshan Xing
Environmental & soil chemistry
adsorption
nanoparticles
microplastics
food safety
Metrics
H-Index
i10 Index
Citation Counts
152
862
98,056
* Total H IndexRankings
Ranking Based On Selection :10
Kevin C Jones
Environmental behaviour and effects of organic contaminants
passive sampling techniques
Metrics
H-Index
i10 Index
Citation Counts
150
800
89,655
* Total H IndexRankings
Ranking Based On Selection :11
Michael Brauer
air pollution
environmental health
environmental epidemiology
built environment
Metrics
H-Index
i10 Index
Citation Counts
147
444
162,657
* Total H IndexRankings
Ranking Based On Selection :13
Peter Verburg
land use change
global environmental change
geography
land use
land cover
Metrics
H-Index
i10 Index
Citation Counts
145
450
68,097
* Total H IndexRankings
Ranking Based On Selection :15
Ravi Naidu
environmental science
pollution
risk and remediation
Metrics
H-Index
i10 Index
Citation Counts
140
898
83,705
* Total H IndexRankings
Ranking Based On Selection :16
Sonia I Seneviratne
climate change
land-climate dynamics
climate extremes
Metrics
H-Index
i10 Index
Citation Counts
135
329
74,714
* Total H IndexRankings
Ranking Based On Selection :17
Mika Sillanpää
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
Metrics
H-Index
i10 Index
Citation Counts
135
989
88,714
* Total H IndexRankings
Ranking Based On Selection :19
Ove Hoegh Guldberg
Climate change
Tropical marine biology
Coral reefs
Metrics
H-Index
i10 Index
Citation Counts
133
385
99,383
* Total H IndexRankings
Ranking Based On Selection :20
Jun Ma 马军
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
Metrics
H-Index
i10 Index
Citation Counts
131
774
67,882
* Total H IndexRankings
Ranking Based On Selection :21
Gordon Mckay
Water Treatment
Waste to Value-added Products
Metrics
H-Index
i10 Index
Citation Counts
131
515
95,009
* Total H IndexRankings
Ranking Based On Selection :22
Michael R Hoffmann
environmental chemistry
atmospheric chemistry
environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
131
429
83,607
* Total H IndexRankings
Ranking Based On Selection :23
Frank Dentener
Climate Change
agriculture
mitigation
adaptation
atmospheric chemistry
Metrics
H-Index
i10 Index
Citation Counts
130
258
103,225
* Total H IndexRankings
Ranking Based On Selection :24
Davey Jones
Environmental Science & Public Health
Metrics
H-Index
i10 Index
Citation Counts
129
537
70,456
* Total H IndexRankings
Ranking Based On Selection :25
Scott Doney
Oceanography
Biogeochemistry
Marine Ecosystems
Climate
Carbon Cycle
Metrics
H-Index
i10 Index
Citation Counts
129
375
90,823
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Pete Smith
Metrics
H-Index
i10-Index
Citation Counts
176
831
129,555
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Philip Jones
Metrics
H-Index
i10-Index
Citation Counts
173
637
152,999
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Robert B Jackson
Metrics
H-Index
i10-Index
Citation Counts
170
485
159,936
biogeochemistry
ecology
environmental science
climate change
ecohydrology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Zhanhu Guo
Metrics
H-Index
i10-Index
Citation Counts
169
953
98,928
Polymer nanocomposites
Conducting Polymers
Sustainability
Environmental Engineering
Electronics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Bruce E Logan
Metrics
H-Index
i10-Index
Citation Counts
168
541
120,794
Microbial fuel cells
microbial electrolysis cells
thermal batteries
desalination
water electrolyzers
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Detlef P. Van Vuuren
Metrics
H-Index
i10-Index
Citation Counts
164
565
193,439
integrated assessment
climate change
environmental science
global change
sustainable development
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Yong-Guan Zhu
Metrics
H-Index
i10-Index
Citation Counts
162
705
93,830
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Christopher B Field
Metrics
H-Index
i10-Index
Citation Counts
162
380
169,710
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Baoshan Xing
Metrics
H-Index
i10-Index
Citation Counts
152
862
98,056
Environmental & soil chemistry
adsorption
nanoparticles
microplastics
food safety
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Kevin C Jones
Metrics
H-Index
i10-Index
Citation Counts
150
800
89,655
Environmental behaviour and effects of organic contaminants
passive sampling techniques
* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Michael Brauer
Metrics
H-Index
i10-Index
Citation Counts
147
444
162,657
air pollution
environmental health
environmental epidemiology
built environment
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Kevin Jones
Metrics
H-Index
i10-Index
Citation Counts
147
728
78,229
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Peter Verburg
Metrics
H-Index
i10-Index
Citation Counts
145
450
68,097
land use change
global environmental change
geography
land use
land cover
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
John C Wingfield
Metrics
H-Index
i10-Index
Citation Counts
142
506
72,970
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Ravi Naidu
Metrics
H-Index
i10-Index
Citation Counts
140
898
83,705
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Sonia I Seneviratne
Metrics
H-Index
i10-Index
Citation Counts
135
329
74,714
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Mika Sillanpää
Metrics
H-Index
i10-Index
Citation Counts
135
989
88,714
Environmental Engineering
Green Chemistry
Chemical Engineering
Water Treatment
Environmental
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Lidia Morawska
Metrics
H-Index
i10-Index
Citation Counts
133
497
238,343
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Ove Hoegh Guldberg
Metrics
H-Index
i10-Index
Citation Counts
133
385
99,383
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Jun Ma 马军
Metrics
H-Index
i10-Index
Citation Counts
131
774
67,882
Water Treatment Processes
Environmental Nanotechnology
Advanced Oxidation
Membrane Technology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Gordon Mckay
Metrics
H-Index
i10-Index
Citation Counts
131
515
95,009
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Michael R Hoffmann
Metrics
H-Index
i10-Index
Citation Counts
131
429
83,607
environmental chemistry
atmospheric chemistry
environmental engineering
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Frank Dentener
Metrics
H-Index
i10-Index
Citation Counts
130
258
103,225
Climate Change
agriculture
mitigation
adaptation
atmospheric chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Davey Jones
Metrics
H-Index
i10-Index
Citation Counts
129
537
70,456
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Scott Doney
Metrics
H-Index
i10-Index
Citation Counts
129
375
90,823
Oceanography
Biogeochemistry
Marine Ecosystems
Climate
Carbon Cycle