University, Subject, Country, Region, World
Open University 33 Scientists Subject Rankings - 2025
The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 197 sub-branches at global, national, and regional levels. These analyses are based on indicators such as the H-index, i10-index, and citation count, including their values from the last 6 years. As of Mar 02, 2025, the rankings are determined according to the Total H Index. BETA VERSION: The subject field rankings for the world, regions, countries, and universities are currently in their Beta phase. This is due to the exclusion of (941.641) scientists categorized under ‘Others’, whose profiles have yet to be determined, edited, or classified. As updates are made to these fields, the rankings will be adjusted accordingly. Note: Please keep this in mind while reviewing the rankings. For further details, explore our [University Subject Rankings].
* Total H IndexRankings
Ranking Based On Selection: 1
Paleoclimatology
paleoecology
paleobotany
Metrics
H-Index
i10 Index
Citation Counts
68
183
15,860
* Total H IndexRankings
Ranking Based On Selection: 2
Earth Sciences
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
56
102
14,014
* Total H IndexRankings
Ranking Based On Selection: 3
Moon
Lunar volatiles
Mars
Meteorites
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
54
133
8,309
* Total H IndexRankings
Ranking Based On Selection: 4
Climate - sustainability - energy
Metrics
H-Index
i10 Index
Citation Counts
47
97
9,448
* Total H IndexRankings
Ranking Based On Selection: 5
geochemistry
geology
flood basalts
weathering
laterites
Metrics
H-Index
i10 Index
Citation Counts
41
68
7,412
* Total H IndexRankings
Ranking Based On Selection: 6
earth sciences
geochronology
metamorphic petrology
tectonics
Metrics
H-Index
i10 Index
Citation Counts
37
53
5,030
* Total H IndexRankings
Ranking Based On Selection: 7
Earthquake Engineering
Structural Dynamics
Finite Elements
Boundary Elements
Structural Engineering
Metrics
H-Index
i10 Index
Citation Counts
33
63
5,061
* Total H IndexRankings
Ranking Based On Selection: 8
earth sciences
Metrics
H-Index
i10 Index
Citation Counts
33
49
3,290
* Total H IndexRankings
Ranking Based On Selection: 9
Planet interior and evolution
exoplanet characterisation
planet formation
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,695
* Total H IndexRankings
Ranking Based On Selection: 10
Vertebrate palaeontology
Palaeobiogeography
Stratigraphy
Geoscience education
Metrics
H-Index
i10 Index
Citation Counts
20
29
1,265
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* Total H IndexRankings
Ranking Based On Selection: 11
Earthquake engineering
Applied mechanics
Dynamics
Damping
Steel structures
Metrics
H-Index
i10 Index
Citation Counts
17
29
1,027
* Total H IndexRankings
Ranking Based On Selection: 12
Geology
Planetary Science
Impact Processes
Metrics
H-Index
i10 Index
Citation Counts
14
16
456
* Total H IndexRankings
Ranking Based On Selection: 13
Geomicrobiology caves
Metrics
H-Index
i10 Index
Citation Counts
14
16
845
* Total H IndexRankings
Ranking Based On Selection: 14
Organic Geochemistry
Paleoceanography
Climate change
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,690
* Total H IndexRankings
Ranking Based On Selection: 15
Geochemistry
Igneous Petrology
Sedimentary Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
13
17
600
* Total H IndexRankings
Ranking Based On Selection: 16
Engineering - Environmental Project Management
Structural Geology
Geology of Greece
Economic Geology
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
11
13
684
* Total H IndexRankings
Ranking Based On Selection: 17
earth sciences
geology
planetary sciences
electron microscopy
Metrics
H-Index
i10 Index
Citation Counts
7
7
154
* Total H IndexRankings
Ranking Based On Selection: 18
geotechnical engineering
earth and environmental sciences
Metrics
H-Index
i10 Index
Citation Counts
7
6
309
* Total H IndexRankings
Ranking Based On Selection: 19
paleo-environmental
biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
7
5
241
* Total H IndexRankings
Ranking Based On Selection: 20
Geology
Petrology
Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
5
2
70
* Total H IndexRankings
Ranking Based On Selection: 21
Geotechnic
dredged marine soil
construction management
construction waste
Metrics
H-Index
i10 Index
Citation Counts
5
3
104
* Total H IndexRankings
Ranking Based On Selection: 22
Volcanology
Noble gases
Geochemistry
Mars
Water/Rock interaction
Metrics
H-Index
i10 Index
Citation Counts
4
1
57
* Total H IndexRankings
Ranking Based On Selection: 23
Geodesy
Location Intelligence
Geocomputational Methods
Geospatial AI
Metrics
H-Index
i10 Index
Citation Counts
4
0
48
* Total H IndexRankings
Ranking Based On Selection: 24
FinTech
Information Technology
Digital Transformation
Metrics
H-Index
i10 Index
Citation Counts
3
2
61
* Total H IndexRankings
Ranking Based On Selection: 25
Peer-to-peer file sharing system
Plate Tectonics
Earthquakes & Seismicity
Metrics
H-Index
i10 Index
Citation Counts
3
1
43
Robert Spicer
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
68
183
15,860
Paleoclimatology
paleoecology
paleobotany
Nick Rogers
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
56
102
14,014
Mahesh Anand
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
54
133
8,309
Moon
Lunar volatiles
Mars
Meteorites
Geochemistry
Neil R Edwards
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
47
97
9,448
Climate - sustainability - energy
Mike Widdowson
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
41
68
7,412
geochemistry
geology
flood basalts
weathering
laterites
Clare Warren
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
37
53
5,030
earth sciences
geochronology
metamorphic petrology
tectonics
George D Hatzigeorgiou
Hellenic Open University
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
33
63
5,061
Earthquake Engineering
Structural Dynamics
Finite Elements
Boundary Elements
Structural Engineering
Soichi Omori
Metrics
H-Index
i10-Index
Citation Counts
33
49
3,290
Allona Vazan
Open University of Israel
Ra'anana, Israel
Metrics
H-Index
i10-Index
Citation Counts
20
25
1,695
Planet interior and evolution
exoplanet characterisation
planet formation
Omkar Verma
Metrics
H-Index
i10-Index
Citation Counts
20
29
1,265
Vertebrate palaeontology
Palaeobiogeography
Stratigraphy
Geoscience education
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George A Papagiannopoulos
Hellenic Open University
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
17
29
1,027
Earthquake engineering
Applied mechanics
Dynamics
Damping
Steel structures
Lee Francis White
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
14
16
456
Geology
Planetary Science
Impact Processes
Baskar S
Metrics
H-Index
i10-Index
Citation Counts
14
16
845
Marcus Badger
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
13
13
1,690
Organic Geochemistry
Paleoceanography
Climate change
Meenal Mishra
Metrics
H-Index
i10-Index
Citation Counts
13
17
600
Geochemistry
Igneous Petrology
Sedimentary Geochemistry
George Falalakis
Hellenic Open University
Patras, Greece
Metrics
H-Index
i10-Index
Citation Counts
11
13
684
Engineering - Environmental Project Management
Structural Geology
Geology of Greece
Economic Geology
Geochemistry
Giulia Degli Alessandrini|Giulia Alessandrini, Giulia D Alessandrini
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
7
7
154
earth sciences
geology
planetary sciences
electron microscopy
Tran Thanh Danh
Ho Chi Minh City Open University
Ho Chi Minh City, Vietnam
Metrics
H-Index
i10-Index
Citation Counts
7
6
309
geotechnical engineering
earth and environmental sciences
Charlotte Spencer-Jones
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
7
5
241
paleo-environmental
biogeochemistry
Gabriel Theophilus Valera
Metrics
H-Index
i10-Index
Citation Counts
5
2
70
Geology
Petrology
Geochemistry
Suaathi Kaliannan
Wawasan Open University
Penang, Malaysia
Metrics
H-Index
i10-Index
Citation Counts
5
3
104
Geotechnic
dredged marine soil
construction management
construction waste
Simone Cogliati
Open University UK
Milton Keynes, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
4
1
57
Volcanology
Noble gases
Geochemistry
Mars
Water/Rock interaction
Czar Jakiri Soriano Sarmiento|Czar Jakiri Soriano Sarmiento
Metrics
H-Index
i10-Index
Citation Counts
4
0
48
Geodesy
Location Intelligence
Geocomputational Methods
Geospatial AI
Sudhir Pant
Uttarakhand Open University
Haldwani, India
Metrics
H-Index
i10-Index
Citation Counts
3
2
61
FinTech
Information Technology
Digital Transformation
Kashyap Mahanta
Metrics
H-Index
i10-Index
Citation Counts
3
1
43
Peer-to-peer file sharing system
Plate Tectonics
Earthquakes & Seismicity