Citation Rankings
Highly Cited Researchers
Engineering & Technology / Environmental Science & Engineering Highly Cited Researchers Citation Rankings 2025
The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the Scientists Last 6 Years Citation Index, Universities Total Citations Rankings 2025, and Universities Last 6 Years Citations Rankings 2025.
* Total Citation Counts Rankings
Ranking Based On Selection: 1
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,879
25,815
0.575
* Total Citation Counts Rankings
Ranking Based On Selection: 2
water
hydrology
soil
modeling
remote sensing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,100
5,015
0.452
* Total Citation Counts Rankings
Ranking Based On Selection: 3
Environmental science
Ecology
Marine science
Biological oceanography
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,214
3,565
0.349
* Total Citation Counts Rankings
Ranking Based On Selection: 4
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,329
3,376
0.405
* Total Citation Counts Rankings
Ranking Based On Selection: 5
Desalination
water treatment
environmental engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,813
7,683
0.983
* Total Citation Counts Rankings
Ranking Based On Selection: 6
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,238
1,938
0.311
* Total Citation Counts Rankings
Ranking Based On Selection: 7
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,181
3,833
0.620
* Total Citation Counts Rankings
Ranking Based On Selection: 8
Bioprocess development Protein purification Process design and economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,177
1,350
0.219
* Total Citation Counts Rankings
Ranking Based On Selection: 9
Energy
air quality
waste management and machinery design and development
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,679
3,592
0.633
* Total Citation Counts Rankings
Ranking Based On Selection: 10
water
water governance
water insecurity
water security
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,377
4,324
0.988
* Total Citation Counts Rankings
Ranking Based On Selection: 11
Environmental Sociology
Disaster
Emergency Management
Social Capital
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,194
3,471
0.828
* Total Citation Counts Rankings
Ranking Based On Selection: 12
environmental engineering
chemical engineering
bioengineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,166
3,402
0.817
* Total Citation Counts Rankings
Ranking Based On Selection: 13
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,044
750
0.185
* Total Citation Counts Rankings
Ranking Based On Selection: 14
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,792
2,109
0.556
* Total Citation Counts Rankings
Ranking Based On Selection: 15
water resource economics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,604
676
0.188
* Total Citation Counts Rankings
Ranking Based On Selection: 16
Water Resources
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,294
2,053
0.623
* Total Citation Counts Rankings
Ranking Based On Selection: 17
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
2,051
0.639
* Total Citation Counts Rankings
Ranking Based On Selection: 18
Climate Change Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,328
2,308
0.991
* Total Citation Counts Rankings
Ranking Based On Selection: 19
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,152
1,867
0.868
* Total Citation Counts Rankings
Ranking Based On Selection: 20
ice nucleation
climate
aerosol
cloud
freezing
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,983
1,176
0.593
* Total Citation Counts Rankings
Ranking Based On Selection: 21
Environmental Science
Atmospheric Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,888
1,180
0.625
* Total Citation Counts Rankings
Ranking Based On Selection: 22
environmental health
air pollution
asthma
water
children health
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,753
1,243
0.709
* Total Citation Counts Rankings
Ranking Based On Selection: 23
Water Resources
Environmental Restoration
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,739
403
0.232
* Total Citation Counts Rankings
Ranking Based On Selection: 24
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,722
1,023
0.594
* Total Citation Counts Rankings
Ranking Based On Selection: 25
water
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,405
379
0.270
* Total Citation Counts Rankings
Rankings
11,855
5,640
24
Ranking Based On Selection: 1
Virender Sharma
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
44,879
25,815
0.575
Water Treatment
Environmental Science
Environmental Chemistry
Environmental Health
Environmental
* Total Citation Counts Rankings
Rankings
87,183
35,418
271
Ranking Based On Selection: 2
Mohanty Binayak P
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
11,100
5,015
0.452
water
hydrology
soil
modeling
remote sensing
* Total Citation Counts Rankings
Rankings
96,194
38,552
1
Ranking Based On Selection: 3
Paul Montagna
Texas A&M University Corpus Christi
Corpus Christi, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
10,214
3,565
0.349
Environmental science
Ecology
Marine science
Biological oceanography
* Total Citation Counts Rankings
Rankings
121,238
47,142
404
Ranking Based On Selection: 4
Shankar Chellam
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
8,329
3,376
0.405
water treatment
urban aerosols
Saharan dust
electrocoagulation
membrane filtration
* Total Citation Counts Rankings
Rankings
129,991
106
2
Ranking Based On Selection: 5
Khaled Elsaid
Texas A&M University at Qatar
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
7,813
7,683
0.983
Desalination
water treatment
environmental engineering
* Total Citation Counts Rankings
Rankings
164,860
61,167
548
Ranking Based On Selection: 6
Vaughn Bryant
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,238
1,938
0.311
Pollen
forensics
coprolites
paleoenvironmental studies
archaeololgy
* Total Citation Counts Rankings
Rankings
166,413
61,643
557
Ranking Based On Selection: 7
Rabi Mohtar
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,181
3,833
0.620
Water-Energy-Food Security
WEF Nexus
Hydrology
Pedostructure
Science to Policy
* Total Citation Counts Rankings
Rankings
166,536
61,685
558
Ranking Based On Selection: 8
Zivko L Nikolov
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,177
1,350
0.219
Bioprocess development Protein purification Process design and economics
* Total Citation Counts Rankings
Rankings
181,069
66,241
623
Ranking Based On Selection: 9
Sergio Capareda
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,679
3,592
0.633
Energy
air quality
waste management and machinery design and development
* Total Citation Counts Rankings
Rankings
232,252
81,564
782
Ranking Based On Selection: 10
Hwise Rcn
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,377
4,324
0.988
water
water governance
water insecurity
water security
* Total Citation Counts Rankings
Rankings
241,651
84,292
820
Ranking Based On Selection: 11
Michelle Annette Meyer
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,194
3,471
0.828
Environmental Sociology
Disaster
Emergency Management
Social Capital
* Total Citation Counts Rankings
Rankings
243,161
84,734
826
Ranking Based On Selection: 12
Eunsung Kan
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,166
3,402
0.817
environmental engineering
chemical engineering
bioengineering
* Total Citation Counts Rankings
Rankings
249,925
86,736
848
Ranking Based On Selection: 13
James L Heilman
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,044
750
0.185
* Total Citation Counts Rankings
Rankings
264,586
90,961
896
Ranking Based On Selection: 14
Bing Guo
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,792
2,109
0.556
solar power generation
photovoltaic soiling mitigation
dust
air quality
aerosol
* Total Citation Counts Rankings
Rankings
276,467
94,387
937
Ranking Based On Selection: 15
Ron Griffin
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,604
676
0.188
water resource economics
* Total Citation Counts Rankings
Rankings
298,572
100,761
5
Ranking Based On Selection: 16
Walter Den
Texas A&M University San Antonio
San Antonio, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,294
2,053
0.623
* Total Citation Counts Rankings
Rankings
305,162
294
7
Ranking Based On Selection: 17
Konstantinos E Kakosimos
Texas A&M University at Qatar
Ar-Rayyan, Qatar
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,210
2,051
0.639
Modelling of Transport and Reacting Phenomena (Air Quality
Risk Assessment
Solar Thermochemical)
* Total Citation Counts Rankings
Rankings
394,179
127,401
1,245
Ranking Based On Selection: 18
Chao Fan
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,328
2,308
0.991
Climate Change Adaptation
Infrastructure Equity
Digital Twins
Resilience
Environmental Justice
* Total Citation Counts Rankings
Rankings
417,621
133,786
1,307
Ranking Based On Selection: 19
Bassel Daher
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,152
1,867
0.868
WEF Nexus
Decision Support Tools
Stakeholder Engagement
Collective Action
Governance
* Total Citation Counts Rankings
Rankings
443,301
140,750
6
Ranking Based On Selection: 20
Naruki Hiranuma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,983
1,176
0.593
ice nucleation
climate
aerosol
cloud
freezing
* Total Citation Counts Rankings
Rankings
459,093
144,992
7
Ranking Based On Selection: 21
Erik Crosman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,888
1,180
0.625
Environmental Science
Atmospheric Science
* Total Citation Counts Rankings
Rankings
482,937
151,399
1,448
Ranking Based On Selection: 22
Genny Carrillo
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,753
1,243
0.709
environmental health
air pollution
asthma
water
children health
* Total Citation Counts Rankings
Rankings
485,811
152,134
1,453
Ranking Based On Selection: 23
John Tracy
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,739
403
0.232
Water Resources
Environmental Restoration
* Total Citation Counts Rankings
Rankings
489,018
152,950
33
Ranking Based On Selection: 24
Hua Zhang
Texas A&M University Corpus Christi
Corpus Christi, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,722
1,023
0.594
Water Resources
Hydrology
Geospatial Analysis
Infrastructure Resilience
* Total Citation Counts Rankings
Rankings
557,992
171,127
1,604
Ranking Based On Selection: 25
Ronald Kaiser
Texas A&M University
College Station, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,405
379
0.270