Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: 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
geotechnical earthquakes seepage
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,692
420
0.248
* Total Citation Counts Rankings
Ranking Based On Selection :2
hydrogeology
water management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,326
621
0.468
* Total Citation Counts Rankings
Ranking Based On Selection :3
Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
407
81
0.199
* Total Citation Counts Rankings
Ranking Based On Selection :4
hydrogeology
water resources
unesco
drought
arid regions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179
34
0.190
* Total Citation Counts Rankings
Ranking Based On Selection :5
biogeochemistry
wetlands
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
165
128
0.776
* Total Citation Counts Rankings
Ranking Based On Selection :6
Contaminant Transport
Hydrogeology
Water Quality
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
160
62
0.388
* Total Citation Counts Rankings
Ranking Based On Selection :7
Geology
Radiocarbon
hydrology
Groundwater
Dam Performance Monitoring
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
44
0.393
* Total Citation Counts Rankings
Ranking Based On Selection :8
geotechnical and structural engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
38
0.384
* Total Citation Counts Rankings
Ranking Based On Selection :9
Urban Hydrology
Biogeochemistry
Natural Infrastructure
Stormwater Modeling
Nature Based Solutions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
66
0.957
* Total Citation Counts Rankings
Ranking Based On Selection :10
Geotechnical Engineering
Dams
Levees
Relief Wells
Groundwater
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
Richard Olsen
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,692
420
0.248
geotechnical earthquakes seepage
William Logan
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,326
621
0.468
hydrogeology
water management
Erich D Guy
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
407
81
0.199
William Logan
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
179
34
0.190
hydrogeology
water resources
unesco
drought
arid regions
Marissa L Kneer
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
165
128
0.776
Jodi Ryder
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
160
62
0.388
Contaminant Transport
Hydrogeology
Water Quality
Bill Walker
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
112
44
0.393
Geology
Radiocarbon
hydrology
Groundwater
Dam Performance Monitoring
Eileen Glynn
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
99
38
0.384
geotechnical and structural engineering
Matthew A Smith
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
69
66
0.957
Urban Hydrology
Biogeochemistry
Natural Infrastructure
Stormwater Modeling
Nature Based Solutions
Andrew M Keffer
US Army
Washington, United States
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
9
9
1.000
Geotechnical Engineering
Dams
Levees
Relief Wells
Groundwater