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.
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Environmental Engineering
Membrane Processes
Biofilm Formation
Education
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,426
2,571
0.581
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Aqueous geochemistry
mine water
economic geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,628
2,189
0.330
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Power systems engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,649
1,887
0.284
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Environmental Biotechnology
Industrial Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,062
1,464
0.710
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :5
remote sensing
geophysics
geosciences
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,869
1,427
0.497
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :6
Reservoir Engineering
Unconventional Reservoirs
EOR
Hydraulic and Natural Fractures
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,404
1,338
0.557
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :7
viruses
innate immunity
Leishmania
macrophages
antiviral proteins
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
644
0.349
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :8
Department of Chemistry & Geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,829
551
0.301
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :9
Materials
composite materials
infiltration
advanced ceramics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
569
521
0.916
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :10
Exploration geophysics
Resistivity
Electromagnetic
Hydro-geophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
710
398
0.561
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :11
nanotechnology
microfabrication
materials science
plasmonics
bioengineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
891
370
0.415
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :12
seismology
glaciers
tectonics
seismic reflection
seismic refraction
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,034
363
0.351
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :13
occupational ergonomics and safety
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,192
320
0.146
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :14
geochemistry
biogeochemistry
hydrogeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,385
318
0.230
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :15
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
670
287
0.428
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :16
Chemical Physics
Physiological Simulation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,598
271
0.170
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :17
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
405
258
0.637
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :18
Active Tectonics
Structural Geology
Tectonic Geomorphology
Geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
372
225
0.605
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :19
Hydrogeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522
224
0.429
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :20
coevolution of Earth's life and chemistry
hot spring ecosystems
environmental proteomics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
220
0.640
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :21
Catalysis
Surface Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
551
208
0.377
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :22
coarse geometry
dimension theory
group theory
applied geometry & topology
geometric modeling
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
423
204
0.482
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :23
geology
Quaternary
geomorphology
hydrogeology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
551
198
0.359
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :24
environment
engineering
sustainability. decommissioning
natural resource damage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
187
0.903
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :25
composites
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
176
0.168
Katherine R Zodrow
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,426
2,571
0.581
Environmental Engineering
Membrane Processes
Biofilm Formation
Education
Christopher Gammons
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,628
2,189
0.330
Aqueous geochemistry
mine water
economic geology
Daniel Trudnowski
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
6,649
1,887
0.284
Power systems engineering
Daqian Jiang
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,062
1,464
0.710
Environmental Biotechnology
Industrial Ecology
Xiaobing Zhou
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,869
1,427
0.497
remote sensing
geophysics
geosciences
B Todd Hoffman
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,404
1,338
0.557
Reservoir Engineering
Unconventional Reservoirs
EOR
Hydraulic and Natural Fractures
Joel Graff
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,847
644
0.349
viruses
innate immunity
Leishmania
macrophages
antiviral proteins
Stephen Parker
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,829
551
0.301
Department of Chemistry & Geochemistry
Mario Caccia
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
569
521
0.916
Materials
composite materials
infiltration
advanced ceramics
Mohamed Ahmed Khalil
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
710
398
0.561
Exploration geophysics
Resistivity
Electromagnetic
Hydro-geophysics
Jack L Skinner
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
891
370
0.415
nanotechnology
microfabrication
materials science
plasmonics
bioengineering
Marvin Speece
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,034
363
0.351
seismology
glaciers
tectonics
seismic reflection
seismic refraction
Roger C Jensen
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,192
320
0.146
Gary A Icopini
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,385
318
0.230
geochemistry
biogeochemistry
hydrogeology
Lee Richards
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
670
287
0.428
Ronald J White
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,598
271
0.170
Chemical Physics
Physiological Simulation
* Last 6 Years Citation Counts Rankings
H Smith Risser
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
405
258
0.637
* Last 6 Years Citation Counts Rankings
Yann Gavillot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
372
225
0.605
Active Tectonics
Structural Geology
Tectonic Geomorphology
Geochronology
* Last 6 Years Citation Counts Rankings
Andrew Bobst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
522
224
0.429
* Last 6 Years Citation Counts Rankings
Alysia Cox
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
344
220
0.640
coevolution of Earth's life and chemistry
hot spring ecosystems
environmental proteomics
* Last 6 Years Citation Counts Rankings
Dario Prieto Centurion
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
551
208
0.377
* Last 6 Years Citation Counts Rankings
Atish Mitra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
423
204
0.482
coarse geometry
dimension theory
group theory
applied geometry & topology
geometric modeling
* Last 6 Years Citation Counts Rankings
Larry N Smith
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
551
198
0.359
geology
Quaternary
geomorphology
hydrogeology
* Last 6 Years Citation Counts Rankings
Robin Bullock
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
207
187
0.903
environment
engineering
sustainability. decommissioning
natural resource damage
* Last 6 Years Citation Counts Rankings
Blackketter Dm
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,048
176
0.168