Productivity Rankings is a unique service offered only by “AD Scientific Index”. This is a ranking system derived from the i10 index in order to show the productivity of the scientist in publishing scientific articles of value. Productivity Rankings is an instrument that lists productive scientists in a given area, discipline, university, and country and can guide the development of meaningful incentives and academic policies. The world rankings, regional rankings, and university rankings of scientists in this table are developed based on the total i10 index. Additionally, click to view the special rankings based on Productivity Rankings: Scientists Last 6 years' i10 Index", Universities Total i10 Index Rankings 2025, Universities Last 6 Years i10 Index Rankings 2025 "Art and Humanities i10 Productivity Rankings" and "Social Sciences and Humanities i10 Productivity Rankings".
* Total i10 IndexRankings
Ranking Based On Selection :1
hydrogeology
water management
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
11
0.458
* Total i10 IndexRankings
Ranking Based On Selection :2
geotechnical earthquakes seepage
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
11
0.550
* Total i10 IndexRankings
Ranking Based On Selection :3
Geotechnical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
1
0.091
* Total i10 IndexRankings
Ranking Based On Selection :4
geotechnical and structural engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
* Total i10 IndexRankings
Ranking Based On Selection :5
hydrogeology
water resources
unesco
drought
arid regions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
* Total i10 IndexRankings
Ranking Based On Selection :6
Contaminant Transport
Hydrogeology
Water Quality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
* Total i10 IndexRankings
Ranking Based On Selection :7
Urban Hydrology
Biogeochemistry
Natural Infrastructure
Stormwater Modeling
Nature Based Solutions
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
* Total i10 IndexRankings
Ranking Based On Selection :8
Geology
Radiocarbon
hydrology
Groundwater
Dam Performance Monitoring
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
* Total i10 IndexRankings
Ranking Based On Selection :9
biogeochemistry
wetlands
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
* Total i10 IndexRankings
Ranking Based On Selection :10
Geotechnical Engineering
Dams
Levees
Relief Wells
Groundwater
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
William Logan
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
24
11
0.458
hydrogeology
water management
Richard Olsen
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
20
11
0.550
geotechnical earthquakes seepage
Erich D Guy
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
11
1
0.091
Eileen Glynn
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
5
2
0.400
geotechnical and structural engineering
William Logan
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
4
1
0.250
hydrogeology
water resources
unesco
drought
arid regions
Jodi Ryder
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
3
2
0.667
Contaminant Transport
Hydrogeology
Water Quality
Matthew A Smith
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
2
1.000
Urban Hydrology
Biogeochemistry
Natural Infrastructure
Stormwater Modeling
Nature Based Solutions
Bill Walker
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
2
1
0.500
Geology
Radiocarbon
hydrology
Groundwater
Dam Performance Monitoring
Marissa L Kneer
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
1
1
1.000
Andrew M Keffer
US Army
Washington, United States
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
0
0
0
Geotechnical Engineering
Dams
Levees
Relief Wells
Groundwater