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 Dec 30, 2024, 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 (874.427) 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
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
Metrics
H-Index
i10 Index
Citation Counts
102
423
44,879
* Total H IndexRankings
Ranking Based On Selection: 2
Environmental science
Ecology
Marine science
Biological oceanography
Metrics
H-Index
i10 Index
Citation Counts
59
155
10,214
* Total H IndexRankings
Ranking Based On Selection: 3
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
Metrics
H-Index
i10 Index
Citation Counts
57
111
8,329
* Total H IndexRankings
Ranking Based On Selection: 4
water
hydrology
soil
modeling
remote sensing
Metrics
H-Index
i10 Index
Citation Counts
56
134
11,100
* Total H IndexRankings
Ranking Based On Selection: 5
Desalination
water treatment
environmental engineering
Metrics
H-Index
i10 Index
Citation Counts
47
87
7,813
* Total H IndexRankings
Ranking Based On Selection: 6
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
Metrics
H-Index
i10 Index
Citation Counts
44
108
6,238
* Total H IndexRankings
Ranking Based On Selection: 7
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
Metrics
H-Index
i10 Index
Citation Counts
42
125
6,181
* Total H IndexRankings
Ranking Based On Selection: 8
Energy
air quality
waste management and machinery design and development
Metrics
H-Index
i10 Index
Citation Counts
40
94
5,679
* Total H IndexRankings
Ranking Based On Selection: 9
Bioprocess development Protein purification Process design and economics
Metrics
H-Index
i10 Index
Citation Counts
40
75
6,177
* Total H IndexRankings
Ranking Based On Selection: 10
water
water governance
water insecurity
water security
Metrics
H-Index
i10 Index
Citation Counts
38
69
4,377
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* Total H IndexRankings
Ranking Based On Selection: 11
environmental engineering
chemical engineering
bioengineering
Metrics
H-Index
i10 Index
Citation Counts
34
47
4,166
* Total H IndexRankings
Ranking Based On Selection: 12
Metrics
H-Index
i10 Index
Citation Counts
34
72
4,044
* Total H IndexRankings
Ranking Based On Selection: 13
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
Metrics
H-Index
i10 Index
Citation Counts
30
57
3,792
* Total H IndexRankings
Ranking Based On Selection: 14
Water Resources
Metrics
H-Index
i10 Index
Citation Counts
30
53
3,294
* Total H IndexRankings
Ranking Based On Selection: 15
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
Metrics
H-Index
i10 Index
Citation Counts
28
54
3,210
* Total H IndexRankings
Ranking Based On Selection: 16
water resource economics
Metrics
H-Index
i10 Index
Citation Counts
25
45
3,604
* Total H IndexRankings
Ranking Based On Selection: 17
Climate Change Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
Metrics
H-Index
i10 Index
Citation Counts
24
43
2,328
* Total H IndexRankings
Ranking Based On Selection: 18
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
Metrics
H-Index
i10 Index
Citation Counts
23
32
1,722
* Total H IndexRankings
Ranking Based On Selection: 19
environmental health
air pollution
asthma
water
children health
Metrics
H-Index
i10 Index
Citation Counts
22
42
1,753
* Total H IndexRankings
Ranking Based On Selection: 20
Environmental Sociology
Disaster
Emergency Management
Social Capital
Metrics
H-Index
i10 Index
Citation Counts
21
30
4,194
* Total H IndexRankings
Ranking Based On Selection: 21
water
Metrics
H-Index
i10 Index
Citation Counts
21
31
1,405
* Total H IndexRankings
Ranking Based On Selection: 22
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
Metrics
H-Index
i10 Index
Citation Counts
20
26
2,152
* Total H IndexRankings
Ranking Based On Selection: 23
Environmental Science
Atmospheric Science
Metrics
H-Index
i10 Index
Citation Counts
20
33
1,888
* Total H IndexRankings
Ranking Based On Selection: 24
ice nucleation
climate
aerosol
cloud
freezing
Metrics
H-Index
i10 Index
Citation Counts
19
25
1,983
* Total H IndexRankings
Ranking Based On Selection: 25
Air Quality
Procesing
Livestock
Cotton
Grain
Metrics
H-Index
i10 Index
Citation Counts
19
34
1,286
Virender Sharma
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
102
423
44,879
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
Paul Montagna
Texas A&M University Corpus Christi
Corpus Christi, United States
Metrics
H-Index
i10-Index
Citation Counts
59
155
10,214
Environmental science
Ecology
Marine science
Biological oceanography
Shankar Chellam
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
57
111
8,329
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
Mohanty Binayak P
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
56
134
11,100
water
hydrology
soil
modeling
remote sensing
Khaled Elsaid
Texas A&M University at Qatar
Ar-Rayyan, Qatar
Metrics
H-Index
i10-Index
Citation Counts
47
87
7,813
Desalination
water treatment
environmental engineering
Vaughn Bryant
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
44
108
6,238
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
Rabi Mohtar
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
42
125
6,181
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
Sergio Capareda
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
40
94
5,679
Energy
air quality
waste management and machinery design and development
Zivko L Nikolov
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
40
75
6,177
Bioprocess development Protein purification Process design and economics
Hwise Rcn
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
38
69
4,377
water
water governance
water insecurity
water security
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!
Eunsung Kan
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
34
47
4,166
environmental engineering
chemical engineering
bioengineering
James L Heilman
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
34
72
4,044
Bing Guo
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
30
57
3,792
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
Walter Den
Texas A&M University San Antonio
San Antonio, United States
Metrics
H-Index
i10-Index
Citation Counts
30
53
3,294
Konstantinos E Kakosimos
Texas A&M University at Qatar
Ar-Rayyan, Qatar
Metrics
H-Index
i10-Index
Citation Counts
28
54
3,210
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
Ron Griffin
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
25
45
3,604
water resource economics
Chao Fan
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
24
43
2,328
Climate Change Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
Hua Zhang
Texas A&M University Corpus Christi
Corpus Christi, United States
Metrics
H-Index
i10-Index
Citation Counts
23
32
1,722
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
Genny Carrillo
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
22
42
1,753
environmental health
air pollution
asthma
water
children health
Michelle Annette Meyer
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
21
30
4,194
Environmental Sociology
Disaster
Emergency Management
Social Capital
Ronald Kaiser
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
21
31
1,405
Bassel Daher
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
20
26
2,152
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
Erik Crosman
Metrics
H-Index
i10-Index
Citation Counts
20
33
1,888
Environmental Science
Atmospheric Science
Naruki Hiranuma
Metrics
H-Index
i10-Index
Citation Counts
19
25
1,983
ice nucleation
climate
aerosol
cloud
freezing
William Faulkner
Texas A&M University
College Station, United States
Metrics
H-Index
i10-Index
Citation Counts
19
34
1,286
Air Quality
Procesing
Livestock
Cotton
Grain