Productivity Rankings is an exclusive service provided by AD Scientific Index. This ranking system, derived from the i10 index, highlights the productivity of scientists in publishing impactful scientific articles. Productivity Rankings serves as a tool to identify highly productive scientists across specific areas, disciplines, universities, and countries, and supports the creation of effective incentives and academic policies. The global, regional, and institutional rankings of scientists in this table are calculated based on their total i10 index. Moreover, you can explore special rankings derived from Productivity Rankings, such as 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
geology
volcanology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
437
342
0.783
* Total i10 IndexRankings
Ranking Based On Selection :2
Geology
Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
350
244
0.697
* Total i10 IndexRankings
Ranking Based On Selection :3
Organic Geochemistry
Biogeochemistry
Paleoclimate
Global Change
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
244
0.887
* Total i10 IndexRankings
Ranking Based On Selection :4
Glaciers ice sheets geochemistry biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
146
0.652
* Total i10 IndexRankings
Ranking Based On Selection :5
palaeobiology
evodevo
Plants
Metazoa
molecular clocks
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
218
187
0.858
* Total i10 IndexRankings
Ranking Based On Selection :6
Earth Sciences
Limestones
Sedimentology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
176
125
0.710
* Total i10 IndexRankings
Ranking Based On Selection :7
Geotechnical Engineering
Geotechnical Earthquake Engineering
Soil-Structure Interaction
Soil Dynamics
Earthquake Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
100
0.813
* Total i10 IndexRankings
Ranking Based On Selection :8
Earthquake Engineering
Structural Dynamics
Bridge Engineering
Performance-based Earthquake
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
83
0.755
* Total i10 IndexRankings
Ranking Based On Selection :9
palaeobiology
biomechanics
evolution
dinosaurs
computer modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
103
0.945
* Total i10 IndexRankings
Ranking Based On Selection :10
Phylogeny
Molecular palaeobiology
Zoology
Metazoa
Prokaryotes & Eukaryogenesis
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
107
94
0.879
* Total i10 IndexRankings
Ranking Based On Selection :11
Biogeochemistry
Nitrogen
Phosphorus
Carbon
Freshwaters
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
67
0.705
* Total i10 IndexRankings
Ranking Based On Selection :12
Mineralogy
Petrology
Mantle
Diamonds
Silicate Melts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
62
0.681
* Total i10 IndexRankings
Ranking Based On Selection :13
Volcanology
Natural Hazards
Disaster Risk Reduction
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
74
0.813
* Total i10 IndexRankings
Ranking Based On Selection :14
volcanology
gravimetry
geophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
69
0.767
* Total i10 IndexRankings
Ranking Based On Selection :15
Volcanology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
67
0.931
* Total i10 IndexRankings
Ranking Based On Selection :16
Seismology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
57
0.803
* Total i10 IndexRankings
Ranking Based On Selection :17
Biomarker
climate
organic geochemistry
earth sciences
chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
66
0.971
* Total i10 IndexRankings
Ranking Based On Selection :18
hydrology
biogeochemistry
water-rock reactions
karst
carbonates
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
50
0.735
* Total i10 IndexRankings
Ranking Based On Selection :19
Volcanology
Remote Sensing
UAVs
Volcanic ash and gas
Climate Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
48
0.750
* Total i10 IndexRankings
Ranking Based On Selection :20
seismology
earthquakes
statistical seismology
earthquake forecasting
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
58
0.935
* Total i10 IndexRankings
Ranking Based On Selection :21
Earth Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
47
0.797
* Total i10 IndexRankings
Ranking Based On Selection :22
Isotope Geochemistry
Trace Element Geochemistry
Igneous Petrology
Ocean Chemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
48
0.889
* Total i10 IndexRankings
Ranking Based On Selection :23
Soil geochemistry
biogeochemistry
weathering
critical zone
geomicrobiology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
44
0.898
* Total i10 IndexRankings
Ranking Based On Selection :24
earthquake engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
38
0.809
* Total i10 IndexRankings
Ranking Based On Selection :25
Geotechnical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
40
0.930
Stephen Sparks
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
437
342
0.783
CJ Hawkesworth
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
350
244
0.697
Richard D Pancost
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
244
0.887
Organic Geochemistry
Biogeochemistry
Paleoclimate
Global Change
Martyn Tranter
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
224
146
0.652
Glaciers ice sheets geochemistry biogeochemistry
Philip CJ Donoghue
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
218
187
0.858
palaeobiology
evodevo
Plants
Metazoa
molecular clocks
Maurice Tucker
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
176
125
0.710
Earth Sciences
Limestones
Sedimentology
George Mylonakis
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
100
0.813
Geotechnical Engineering
Geotechnical Earthquake Engineering
Soil-Structure Interaction
Soil Dynamics
Earthquake Engineering
Anastasios Sextos
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
83
0.755
Earthquake Engineering
Structural Dynamics
Bridge Engineering
Performance-based Earthquake
Emily J Rayfield
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
109
103
0.945
palaeobiology
biomechanics
evolution
dinosaurs
computer modelling
Davide Pisani
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
107
94
0.879
Phylogeny
Molecular palaeobiology
Zoology
Metazoa
Prokaryotes & Eukaryogenesis
Penny Johnes
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
95
67
0.705
Biogeochemistry
Nitrogen
Phosphorus
Carbon
Freshwaters
Simon C. Kohn
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
62
0.681
Mineralogy
Petrology
Mantle
Diamonds
Silicate Melts
Jeremy Phillips
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
91
74
0.813
Volcanology
Natural Hazards
Disaster Risk Reduction
Joachim Gottsmann
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
69
0.767
volcanology
gravimetry
geophysics
Alison Rust
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
67
0.931
James Wookey
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
71
57
0.803
David Naafs
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
66
0.971
Biomarker
climate
organic geochemistry
earth sciences
chemistry
Fiona Whitaker
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
68
50
0.735
hydrology
biogeochemistry
water-rock reactions
karst
carbonates
Matthew Watson
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
64
48
0.750
Volcanology
Remote Sensing
UAVs
Volcanic ash and gas
Climate Engineering
Maximilian Werner
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
62
58
0.935
seismology
earthquakes
statistical seismology
earthquake forecasting
Christopher Coath
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
59
47
0.797
Ian Parkinson
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
48
0.889
Isotope Geochemistry
Trace Element Geochemistry
Igneous Petrology
Ocean Chemistry
Heather L. Buss
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
49
44
0.898
Soil geochemistry
biogeochemistry
weathering
critical zone
geomicrobiology
Flavia De Luca
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
47
38
0.809
Andrea Diambra
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
43
40
0.930