i10 Productivity
Rankings
U.S. Geological Survey Scientists i10 Productivity Rankings 2025
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 :101
Earth Science
Environmental Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
78
0.907
* Total i10 IndexRankings
Ranking Based On Selection :102
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
78
0.907
* Total i10 IndexRankings
Ranking Based On Selection :103
Energy
ecosystem services
applied ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
60
0.698
* Total i10 IndexRankings
Ranking Based On Selection :104
structural geology
neotectonics
earthquake hazard
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
47
0.547
* Total i10 IndexRankings
Ranking Based On Selection :105
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
32
0.372
* Total i10 IndexRankings
Ranking Based On Selection :106
Fisheries
Animal Behavior
Chemical Ecology
Physiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
72
0.847
* Total i10 IndexRankings
Ranking Based On Selection :107
wetland ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
47
0.553
* Total i10 IndexRankings
Ranking Based On Selection :108
ecology
management
statistics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
76
0.905
* Total i10 IndexRankings
Ranking Based On Selection :109
Aquatic ecology
Fisheries biology
Climate change
Invasive species
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
71
0.845
* Total i10 IndexRankings
Ranking Based On Selection :110
Estuarine processes
sediment transport
numerical modeling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
67
0.798
* Total i10 IndexRankings
Ranking Based On Selection :111
Geologic hazards
Landslides
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
59
0.702
* Total i10 IndexRankings
Ranking Based On Selection :112
Alpine hydrology
climate change
atmospheric pollution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
55
0.655
* Total i10 IndexRankings
Ranking Based On Selection :113
coastal change hazards
continental shelf sedimentation
sea-level rise
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
50
0.595
* Total i10 IndexRankings
Ranking Based On Selection :114
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
22
0.262
* Total i10 IndexRankings
Ranking Based On Selection :115
structural geology & tectonics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
17
0.205
* Total i10 IndexRankings
Ranking Based On Selection :116
Dryland ecology
soil science
range management
restoration
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
79
0.963
* Total i10 IndexRankings
Ranking Based On Selection :117
riparian ecology
rivers
restoration
invasive species
environmental flow
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
64
0.780
* Total i10 IndexRankings
Ranking Based On Selection :118
Contaminant transport
biodegradation
fluids and faulting
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
61
0.744
* Total i10 IndexRankings
Ranking Based On Selection :119
environmental geochemistry
karst hydrology
sediment chemistry
pesticides
water quality
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
60
0.732
* Total i10 IndexRankings
Ranking Based On Selection :120
biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
58
0.707
* Total i10 IndexRankings
Ranking Based On Selection :121
Invasive species biology
herpetology
reptile ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
56
0.691
* Total i10 IndexRankings
Ranking Based On Selection :122
marine ecology
coral reefs
conservation biology
biodiversity
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
* Total i10 IndexRankings
Ranking Based On Selection :123
hydrogeology
groundwater
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
49
0.605
* Total i10 IndexRankings
Ranking Based On Selection :124
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
37
0.457
* Total i10 IndexRankings
Ranking Based On Selection :125
Wildlife Disease
Ornithology
Conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
29
0.358
Yiping Wu
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
78
0.907
Earth Science
Environmental Science
Kristen M Hart
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
78
0.907
Jay Diffendorfer
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
60
0.698
Energy
ecosystem services
applied ecology
Ray E Wells
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
47
0.547
structural geology
neotectonics
earthquake hazard
Peter D Warwick
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
86
32
0.372
Nicholas Johnson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
72
0.847
Fisheries
Animal Behavior
Chemical Ecology
Physiology
Beth Middleton
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
85
47
0.553
Charles Yackulic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
76
0.905
Clint Muhlfeld
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
71
0.845
Aquatic ecology
Fisheries biology
Climate change
Invasive species
Neil Kamal Ganju
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
67
0.798
Estuarine processes
sediment transport
numerical modeling
Randall Jibson
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
59
0.702
David W Clow
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
55
0.655
Alpine hydrology
climate change
atmospheric pollution
E Robert Thieler
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
50
0.595
coastal change hazards
continental shelf sedimentation
sea-level rise
Warren J Nokleberg
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
84
22
0.262
J Wright Horton, Jr
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
83
17
0.205
structural geology & tectonics
Michael C Duniway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
79
0.963
Dryland ecology
soil science
range management
restoration
Patrick B Shafroth
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
64
0.780
riparian ecology
rivers
restoration
invasive species
environmental flow
Barbara Bekins
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
61
0.744
Contaminant transport
biodegradation
fluids and faulting
Barbara J Mahler
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
60
0.732
environmental geochemistry
karst hydrology
sediment chemistry
pesticides
water quality
Brian A Bergamaschi
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
82
58
0.707
Robert N Reed
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
56
0.691
Invasive species biology
herpetology
reptile ecology
Caroline Rogers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
50
0.617
marine ecology
coral reefs
conservation biology
biodiversity
Ward Sanford
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
49
0.605
David W Houseknecht
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
37
0.457
Charles Van Riper III
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
81
29
0.358
Wildlife Disease
Ornithology
Conservation