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 Feb 01, 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 (870.053) 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
evolution
genomics
population genetics
ancient DNA
environmental DNA
Metrics
H-Index
i10 Index
Citation Counts
147
316
77,115
* Total H IndexRankings
Ranking Based On Selection: 2
oxygen
evolution
oceanography
geobiology
biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
121
254
64,025
* Total H IndexRankings
Ranking Based On Selection: 3
lake
lake restoration
biogeochemistry
Water Framework Directive
Metrics
H-Index
i10 Index
Citation Counts
87
241
33,161
* Total H IndexRankings
Ranking Based On Selection: 4
Observational Cosmology
Galaxy Evolution
Metrics
H-Index
i10 Index
Citation Counts
80
198
24,918
* Total H IndexRankings
Ranking Based On Selection: 5
biogeochemistry
microbial ecology
Metrics
H-Index
i10 Index
Citation Counts
80
166
27,933
* Total H IndexRankings
Ranking Based On Selection: 6
geochemistry
climate research
non traditional stable isotopes
Metrics
H-Index
i10 Index
Citation Counts
76
245
19,039
* Total H IndexRankings
Ranking Based On Selection: 7
Greenland ice climate interactions
Metrics
H-Index
i10 Index
Citation Counts
75
174
19,937
* Total H IndexRankings
Ranking Based On Selection: 8
Water Resources
Metrics
H-Index
i10 Index
Citation Counts
64
185
19,318
* Total H IndexRankings
Ranking Based On Selection: 9
Geophysics
Geomagnetism
Metrics
H-Index
i10 Index
Citation Counts
62
152
15,988
* Total H IndexRankings
Ranking Based On Selection: 10
Geophysics
Metrics
H-Index
i10 Index
Citation Counts
57
174
12,693
* Total H IndexRankings
Ranking Based On Selection: 11
bioelectricity
biogeochemistry
microbial ecology
stable isotopes
Metrics
H-Index
i10 Index
Citation Counts
57
87
12,361
* Total H IndexRankings
Ranking Based On Selection: 12
Quaternary geology
Metrics
H-Index
i10 Index
Citation Counts
56
173
9,647
* Total H IndexRankings
Ranking Based On Selection: 13
geochemistry
nanotechniques
natural materials science
Metrics
H-Index
i10 Index
Citation Counts
54
128
9,455
* Total H IndexRankings
Ranking Based On Selection: 14
Geochronology
Noble gases
Metrics
H-Index
i10 Index
Citation Counts
54
79
10,814
* Total H IndexRankings
Ranking Based On Selection: 15
Geochronology
meteoritics
early Solar System
Metrics
H-Index
i10 Index
Citation Counts
53
108
9,692
* Total H IndexRankings
Ranking Based On Selection: 16
remote sensing of vegetation
Metrics
H-Index
i10 Index
Citation Counts
51
94
8,715
* Total H IndexRankings
Ranking Based On Selection: 17
groundwater geochemistry
Metrics
H-Index
i10 Index
Citation Counts
50
74
19,378
* Total H IndexRankings
Ranking Based On Selection: 18
Cohesive sediment
microplastic
coastal wetlands
Arctic fjords
geochronology
Metrics
H-Index
i10 Index
Citation Counts
47
107
6,448
* Total H IndexRankings
Ranking Based On Selection: 19
Geophysics
Geomagnetism
Earth's core
Inverse Problems
Metrics
H-Index
i10 Index
Citation Counts
45
72
9,308
* Total H IndexRankings
Ranking Based On Selection: 20
Geology
Geochemistry
Geochronology
Metrics
H-Index
i10 Index
Citation Counts
45
79
5,432
* Total H IndexRankings
Ranking Based On Selection: 21
Geology
Sedimentology
Dinosaurs
Palaeoclimate
Coastal Systems
Metrics
H-Index
i10 Index
Citation Counts
45
88
5,152
* Total H IndexRankings
Ranking Based On Selection: 22
Geodesy
Earth Observation
Hydrology-Climate
Space Weather
Signal Processing
Metrics
H-Index
i10 Index
Citation Counts
43
69
4,780
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
43
94
5,489
* Total H IndexRankings
Ranking Based On Selection: 24
Earth Observation
Land Use Science
Citizen Science
Climate Change
Geographical Machine Learning
Metrics
H-Index
i10 Index
Citation Counts
41
76
5,644
* Total H IndexRankings
Ranking Based On Selection: 25
Ecosystem modelling
Earth system modelling
Metrics
H-Index
i10 Index
Citation Counts
40
70
7,557
Eske Willerslev
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
147
316
77,115
evolution
genomics
population genetics
ancient DNA
environmental DNA
Donald E Canfield
University of Southern Denmark
Tianjin, Denmark
Metrics
H-Index
i10-Index
Citation Counts
121
254
64,025
oxygen
evolution
oceanography
geobiology
biogeochemistry
Martin Søndergaard
Aarhus University
Aarhus, Denmark
Metrics
H-Index
i10-Index
Citation Counts
87
241
33,161
lake
lake restoration
biogeochemistry
Water Framework Directive
Georgios E Magdis
Technical University of Denmark
Kongens Lyngby, Denmark
Metrics
H-Index
i10-Index
Citation Counts
80
198
24,918
Observational Cosmology
Galaxy Evolution
Bo Thamdrup
University of Southern Denmark
Tianjin, Denmark
Metrics
H-Index
i10-Index
Citation Counts
80
166
27,933
biogeochemistry
microbial ecology
Robert Frei
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
76
245
19,039
geochemistry
climate research
non traditional stable isotopes
Jason E. Box
Metrics
H-Index
i10-Index
Citation Counts
75
174
19,937
Greenland ice climate interactions
Jens Christian Refsgaard
Metrics
H-Index
i10-Index
Citation Counts
64
185
19,318
Nils Olsen
Technical University of Denmark
Kongens Lyngby, Denmark
Metrics
H-Index
i10-Index
Citation Counts
62
152
15,988
Esben Auken
Metrics
H-Index
i10-Index
Citation Counts
57
174
12,693
Nils Risgaard Petersen
Aarhus University
Aarhus, Denmark
Metrics
H-Index
i10-Index
Citation Counts
57
87
12,361
bioelectricity
biogeochemistry
microbial ecology
stable isotopes
Ole Bennike
Metrics
H-Index
i10-Index
Citation Counts
56
173
9,647
Susan Louise Svane Stipp
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
54
128
9,455
geochemistry
nanotechniques
natural materials science
Michael Storey
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
54
79
10,814
James N Connelly
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
53
108
9,692
Geochronology
meteoritics
early Solar System
Martin Brandt
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
51
94
8,715
remote sensing of vegetation
Dieke Postma
Metrics
H-Index
i10-Index
Citation Counts
50
74
19,378
Thorbjørn Joest Andersen
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
47
107
6,448
Cohesive sediment
microplastic
coastal wetlands
Arctic fjords
geochronology
Christopher Finlay
Technical University of Denmark
Kongens Lyngby, Denmark
Metrics
H-Index
i10-Index
Citation Counts
45
72
9,308
Geophysics
Geomagnetism
Earth's core
Inverse Problems
Tod Waight
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
45
79
5,432
Geology
Geochemistry
Geochronology
Lars B Clemmensen
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
45
88
5,152
Geology
Sedimentology
Dinosaurs
Palaeoclimate
Coastal Systems
Ehsan Forootan
Aalborg University
Aalborg, Denmark
Metrics
H-Index
i10-Index
Citation Counts
43
69
4,780
Geodesy
Earth Observation
Hydrology-Climate
Space Weather
Signal Processing
Christian Tegner
Aarhus University
Aarhus, Denmark
Metrics
H-Index
i10-Index
Citation Counts
43
94
5,489
Jamal Jokar Arsanjani
Aalborg University
Aalborg, Denmark
Metrics
H-Index
i10-Index
Citation Counts
41
76
5,644
Earth Observation
Land Use Science
Citizen Science
Climate Change
Geographical Machine Learning
Guy Schurgers
University of Copenhagen
Copenhagen, Denmark
Metrics
H-Index
i10-Index
Citation Counts
40
70
7,557
Ecosystem modelling
Earth system modelling