The "AD Scientific Index" analyses the academic work of scientists using the H-index, i10 index and number of citations, and provides results that can be used to evaluate the productivity and efficiency of individuals and institutions. In addition to ranking according to "total H-index" for individuals and institutions, you can also see the ranking and analyses according to "last 6 years H-index"and Subject Rankings.
![Steve Mcgrath](/user/assets/images/profile/no-profile-photo.png)
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
141
75
0.532
![Stephen Sparks](https://cdn.adscientificindex.com/pictures/ff/4322675.jpg)
geology
volcanology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
139
62
0.446
![CJ Hawkesworth](/user/assets/images/profile/no-profile-photo.png)
Geology
Geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
135
62
0.459
![David A Hodell](https://cdn.adscientificindex.com/pictures/4f/1361880.jpg)
Isotope geochemistry
palaeoclimatology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
101
59
0.584
![Michael P Searle](https://cdn.adscientificindex.com/pictures/23/1056272.jpg)
Tectonics
Himalaya
Karakoram
Tibet
Oman
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
101
57
0.564
![Richard D Pancost](https://cdn.adscientificindex.com/pictures/26/4322709.jpg)
Organic Geochemistry
Biogeochemistry
Paleoclimate
Global Change
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
64
0.674
![Matthew Thirlwall](/user/assets/images/profile/no-profile-photo.png)
Geology
Isotope Geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
47
0.495
![Julian A Dowdeswell](https://cdn.adscientificindex.com/pictures/ee/1348129.jpg)
Glaciology
marine geology and geophysics of high-latitude margins
remote sensing of ice sheets
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
46
0.484
![René De Borst](https://cdn.adscientificindex.com/pictures/8c/1243256.jpg)
Geomechanics
Continuum Mechanics
Computational Mechanics
Solid Mechanics
Fracture
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
92
51
0.554
![Angela Gurnell](/user/assets/images/profile/no-profile-photo.png)
Geomorphology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
51
0.560
![Jonathan Richard Lloyd](https://cdn.adscientificindex.com/pictures/ff/1548572.jpg)
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
50
0.549
![Alastair Robertson](/user/assets/images/profile/no-profile-photo.png)
geology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
42
0.462
![Marjorie Wilson](/user/assets/images/profile/no-profile-photo.png)
geology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
90
49
0.544
![Paul Wignall](https://cdn.adscientificindex.com/pictures/d7/1147322.jpg)
mass extinctions
palaeoclimate
sedimentology
palaeontology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
89
61
0.685
![Jon Blundy](https://cdn.adscientificindex.com/pictures/7b/1214717.jpg)
Earth Sciences
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
57
0.671
![Herbert Huppert](/user/assets/images/profile/no-profile-photo.png)
fluid mechanics
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
40
0.471
![Melanie Leng](https://cdn.adscientificindex.com/pictures/05/4622867.jpg)
isotopes
palaeoclimate
geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
84
49
0.583
![Julian A. Pearce](/user/assets/images/profile/no-profile-photo.png)
Geology
geochemistry
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
54
0.651
![Mark Macklin](https://cdn.adscientificindex.com/pictures/d8/1229323.jpg)
Fluvial Geomorphology
Holocene
Rivers
Floodplains
Planetary Health
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
41
0.494
![Edward Tipping](/user/assets/images/profile/no-profile-photo.png)
Biogeochemistry
toxicity
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
35
0.422
![Andrew Goudie](https://cdn.adscientificindex.com/pictures/17/1286684.jpg)
Geomorphology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
82
43
0.524
![Martin Brasier](https://cdn.adscientificindex.com/pictures/7c/1147326.jpg)
palaeobiology
micropalaeontology
early life
astrobiology
geobiology
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
82
37
0.451
![Philip CJ Donoghue](https://cdn.adscientificindex.com/pictures/fb/4322744.jpg)
palaeobiology
evodevo
Plants
Metazoa
molecular clocks
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
81
57
0.704
![Michael Bickle](/user/assets/images/profile/no-profile-photo.png)
Geology
carbon sequestration
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
40
0.500
![Mike J Bickle](/user/assets/images/profile/no-profile-photo.png)
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
40
0.500
Steve Mcgrath
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
141
75
0.532
Biogeochemistry of phosphorus
sulphur and trace elements in soil-plant systems
Stephen Sparks
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
139
62
0.446
CJ Hawkesworth
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
135
62
0.459
David A Hodell
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
101
59
0.584
Isotope geochemistry
palaeoclimatology
Michael P Searle
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
101
57
0.564
Tectonics
Himalaya
Karakoram
Tibet
Oman
Richard D Pancost
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
64
0.674
Organic Geochemistry
Biogeochemistry
Paleoclimate
Global Change
Matthew Thirlwall
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
47
0.495
Geology
Isotope Geochemistry
Julian A Dowdeswell
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
95
46
0.484
Glaciology
marine geology and geophysics of high-latitude margins
remote sensing of ice sheets
René De Borst
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
92
51
0.554
Geomechanics
Continuum Mechanics
Computational Mechanics
Solid Mechanics
Fracture
Angela Gurnell
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
51
0.560
Jonathan Richard Lloyd
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
50
0.549
geomicrobiology
environmental microbiology
nanotechnology
biotechnology
Alastair Robertson
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
91
42
0.462
Marjorie Wilson
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
90
49
0.544
Paul Wignall
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
89
61
0.685
mass extinctions
palaeoclimate
sedimentology
palaeontology
Jon Blundy
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
57
0.671
Herbert Huppert
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
85
40
0.471
Melanie Leng
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
84
49
0.583
isotopes
palaeoclimate
geochemistry
Julian A. Pearce
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
54
0.651
Mark Macklin
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
41
0.494
Fluvial Geomorphology
Holocene
Rivers
Floodplains
Planetary Health
Edward Tipping
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
83
35
0.422
Andrew Goudie
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
82
43
0.524
Martin Brasier
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
82
37
0.451
palaeobiology
micropalaeontology
early life
astrobiology
geobiology
Philip CJ Donoghue
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
81
57
0.704
palaeobiology
evodevo
Plants
Metazoa
molecular clocks
Michael Bickle
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
40
0.500
Geology
carbon sequestration
Mike J Bickle
H-Index Metrics
Total
Last 6 Years
Last 6 Years / Total
80
40
0.500