Total 2,392,995 scientists, country 221, and institutions 24,455 are evaluated in the Productivity Rankings, an exclusive service provided by AD Scientific Index. This ranking measures and highlights the scientific productivity of researchers based on the i10 index (number of publications with at least 10 citations). This system identifies highly productive scientists across disciplines, institutions, and regions, contributing to the development of evidence-based academic policies and effective incentive mechanisms. The rankings include global, regional, and institutional analyses, along with specialized rankings such as Scientists' Last 6 Years' i10 Index and Universities' i10 Index Rankings 2025. With Premium Membership, you can:
- Gain full access to detailed comparisons and advanced analytics,
- Objectively evaluate your academic productivity,
- Make strategic, data-driven decisions to enhance performance.
* Total i10 IndexRankings
Ranking Based On Selection: 1
geology
volcanology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
439
326
0.743
* Total i10 IndexRankings
Ranking Based On Selection: 2
Geology
Geochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
225
0.641
* 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
235
0.855
* Total i10 IndexRankings
Ranking Based On Selection: 4
Glaciers ice sheets geochemistry biogeochemistry
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
225
136
0.604
* 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
220
181
0.823
* Total i10 IndexRankings
Ranking Based On Selection: 6
Earth Sciences
Limestones
Sedimentology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
179
124
0.693
* 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
94
0.764
* Total i10 IndexRankings
Ranking Based On Selection: 8
palaeobiology
biomechanics
evolution
dinosaurs
computer modelling
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
105
0.921
* Total i10 IndexRankings
Ranking Based On Selection: 9
Earthquake Engineering
Structural Dynamics
Bridge Engineering
Performance-based Earthquake
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
81
0.736
* 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
108
91
0.843
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* Total i10 IndexRankings
Ranking Based On Selection: 11
Biogeochemistry
Nitrogen
Phosphorus
Carbon
Freshwaters
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
65
0.677
* Total i10 IndexRankings
Ranking Based On Selection: 12
Volcanology
Natural Hazards
Disaster Risk Reduction
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
66
0.710
* Total i10 IndexRankings
Ranking Based On Selection: 13
Mineralogy
Petrology
Mantle
Diamonds
Silicate Melts
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
56
0.609
* Total i10 IndexRankings
Ranking Based On Selection: 14
volcanology
gravimetry
geophysics
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
61
0.678
* Total i10 IndexRankings
Ranking Based On Selection: 15
Seismology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
54
0.740
* Total i10 IndexRankings
Ranking Based On Selection: 16
Volcanology
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
65
0.903
* 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
69
67
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
69
46
0.667
* 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
65
45
0.692
* 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
57
0.919
* Total i10 IndexRankings
Ranking Based On Selection: 21
Earth Sciences
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
60
47
0.783
* 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
45
0.833
* 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
42
0.857
* Total i10 IndexRankings
Ranking Based On Selection: 24
earthquake engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
48
38
0.792
* Total i10 IndexRankings
Ranking Based On Selection: 25
Geotechnical Engineering
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909
Stephen Sparks
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
439
326
0.743
CJ Hawkesworth
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
351
225
0.641
Richard D Pancost
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
275
235
0.855
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
225
136
0.604
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
220
181
0.823
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
179
124
0.693
Earth Sciences
Limestones
Sedimentology
George Mylonakis
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
123
94
0.764
Geotechnical Engineering
Geotechnical Earthquake Engineering
Soil-Structure Interaction
Soil Dynamics
Earthquake Engineering
Emily J Rayfield
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
114
105
0.921
palaeobiology
biomechanics
evolution
dinosaurs
computer modelling
Anastasios Sextos
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
110
81
0.736
Earthquake Engineering
Structural Dynamics
Bridge Engineering
Performance-based Earthquake
Davide Pisani
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
108
91
0.843
Phylogeny
Molecular palaeobiology
Zoology
Metazoa
Prokaryotes & Eukaryogenesis
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Penny Johnes
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
96
65
0.677
Biogeochemistry
Nitrogen
Phosphorus
Carbon
Freshwaters
Jeremy Phillips
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
93
66
0.710
Volcanology
Natural Hazards
Disaster Risk Reduction
Simon C. Kohn
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
92
56
0.609
Mineralogy
Petrology
Mantle
Diamonds
Silicate Melts
Joachim Gottsmann
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
90
61
0.678
volcanology
gravimetry
geophysics
James Wookey
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
73
54
0.740
Alison Rust
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
72
65
0.903
David Naafs
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
69
67
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
69
46
0.667
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
65
45
0.692
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
57
0.919
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
60
47
0.783
Ian Parkinson
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
54
45
0.833
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
42
0.857
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
48
38
0.792
Andrea Diambra
University of Bristol
Bristol, United Kingdom
i-10 Metrics
Total
Last 6 Years
Last 6 Years / Total
44
40
0.909