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 :226
Hydrogeology
Hydrology
Earth Science
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
33
0.569
* Total i10 IndexRankings
Ranking Based On Selection :227
Conservation genetics and genomics
animal health
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
52
0.912
* Total i10 IndexRankings
Ranking Based On Selection :228
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
45
0.789
* Total i10 IndexRankings
Ranking Based On Selection :229
Volcano Seismology
Infrasound
Volcanology
Seismology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
45
0.789
* Total i10 IndexRankings
Ranking Based On Selection :230
hydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
44
0.772
* Total i10 IndexRankings
Ranking Based On Selection :231
Volcanology
Natural hazards
Mechanics of granular flow
Surface processes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
37
0.649
* Total i10 IndexRankings
Ranking Based On Selection :232
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
48
0.857
* Total i10 IndexRankings
Ranking Based On Selection :233
Avian Ecology
Statistics
Quantitative Ecology
Demographics
Life History Evolution
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
47
0.839
* Total i10 IndexRankings
Ranking Based On Selection :234
Hydrology
computational methods
hydrogeology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
41
0.732
* Total i10 IndexRankings
Ranking Based On Selection :235
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
23
0.411
* Total i10 IndexRankings
Ranking Based On Selection :236
Conservation Biology
Ornithology
Forest Ecology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
15
0.268
* Total i10 IndexRankings
Ranking Based On Selection :237
Neotectonics
Quaternary fault studies
Paleoseismology
Altyn Tagh fault
Basin and Range
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
51
0.927
* Total i10 IndexRankings
Ranking Based On Selection :238
disturbance hydrology
unsaturated zone hydrology
wildfire
hydrogeomorphology
hillslope hydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
50
0.909
* Total i10 IndexRankings
Ranking Based On Selection :239
Ecosystem biogeochemistry
boreal/arctic
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
49
0.891
* Total i10 IndexRankings
Ranking Based On Selection :240
ecology
climate change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
48
0.873
* Total i10 IndexRankings
Ranking Based On Selection :241
Landscape ecology
aquatic ecology
spatial analysis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
45
0.818
* Total i10 IndexRankings
Ranking Based On Selection :242
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
43
0.782
* Total i10 IndexRankings
Ranking Based On Selection :243
Aquatic Ecology
Water Quality
Public Health Microbiology
Beaches
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
41
0.745
* Total i10 IndexRankings
Ranking Based On Selection :244
environmental toxicology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
37
0.673
* Total i10 IndexRankings
Ranking Based On Selection :245
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
* Total i10 IndexRankings
Ranking Based On Selection :246
Geologic Hydrogen Resources
Gas Geochemistry
Organic-inorganic Geochemistry
Stable Isotopes
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
40
0.741
* Total i10 IndexRankings
Ranking Based On Selection :247
vulnerability
hazards
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
38
0.704
* Total i10 IndexRankings
Ranking Based On Selection :248
Volcanology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
37
0.685
* Total i10 IndexRankings
Ranking Based On Selection :249
Wildlife Biology and Conservation
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
33
0.611
* Total i10 IndexRankings
Ranking Based On Selection :250
Surficial Geologic Mapping
Geomorphology
Paleoflood Hydrology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
25
0.463
Devin Galloway
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
58
33
0.569
Hydrogeology
Hydrology
Earth Science
Margaret E Hunter
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
52
0.912
Conservation genetics and genomics
animal health
Burke Minsley
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
45
0.789
Arthur D Jolly
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
45
0.789
Volcano Seismology
Infrasound
Volcanology
Seismology
Christian Langevin
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
44
0.772
James W Vallance
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
57
37
0.649
Volcanology
Natural hazards
Mechanics of granular flow
Surface processes
Adam Sepulveda
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
48
0.857
Mark Herzog
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
47
0.839
Avian Ecology
Statistics
Quantitative Ecology
Demographics
Life History Evolution
Richard Niswonger
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
41
0.732
Hydrology
computational methods
hydrogeology
John Pearce
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
23
0.411
Daniel Twedt
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
56
15
0.268
Conservation Biology
Ornithology
Forest Ecology
Ryan Gold
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
51
0.927
Neotectonics
Quaternary fault studies
Paleoseismology
Altyn Tagh fault
Basin and Range
Brian A Ebel
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
50
0.909
disturbance hydrology
unsaturated zone hydrology
wildfire
hydrogeomorphology
hillslope hydrology
Kimberly P Wickland
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
49
0.891
Ecosystem biogeochemistry
boreal/arctic
Toni Lyn Morelli
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
48
0.873
Christian E Torgersen
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
45
0.818
Landscape ecology
aquatic ecology
spatial analysis
Michelle A Walvoord
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
43
0.782
Meredith B Nevers
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
41
0.745
Aquatic Ecology
Water Quality
Public Health Microbiology
Beaches
David J Soucek
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
37
0.673
Leslie F Ruppert
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
55
29
0.527
Geoffrey Ellis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
40
0.741
Geologic Hydrogen Resources
Gas Geochemistry
Organic-inorganic Geochemistry
Stable Isotopes
Nathan Wood
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
38
0.704
Tim Orr
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
37
0.685
John Organ
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
33
0.611
Wildlife Biology and Conservation
P Kyle House
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
25
0.463
Surficial Geologic Mapping
Geomorphology
Paleoflood Hydrology