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 Jan 30, 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 (873.690) 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
oceanography
Metrics
H-Index
i10 Index
Citation Counts
101
320
39,404
* Total H IndexRankings
Ranking Based On Selection: 2
Oceanography
Metrics
H-Index
i10 Index
Citation Counts
72
171
26,136
* Total H IndexRankings
Ranking Based On Selection: 3
oceanography
phytoplankton
ocean observations
ballast water treatment issues
Metrics
H-Index
i10 Index
Citation Counts
69
124
17,991
* Total H IndexRankings
Ranking Based On Selection: 4
Ocean
phytoplankton
climate
physics
Metrics
H-Index
i10 Index
Citation Counts
60
119
14,208
* Total H IndexRankings
Ranking Based On Selection: 5
Diagenesis
CaCO3 dissolution
Benthic Boundary Layer
Bubbles in Sediments
Ocean Acidification
Metrics
H-Index
i10 Index
Citation Counts
52
98
11,539
* Total H IndexRankings
Ranking Based On Selection: 6
ocean biogeochemistry
ocean modelling
data assimilation
hypoxia
carbon cycle
Metrics
H-Index
i10 Index
Citation Counts
49
119
10,130
* Total H IndexRankings
Ranking Based On Selection: 7
aquaculture
coastal ecology
Metrics
H-Index
i10 Index
Citation Counts
49
90
7,216
* Total H IndexRankings
Ranking Based On Selection: 8
Oceanography
Marine Particle Dynamics
Sediment Transport
Metrics
H-Index
i10 Index
Citation Counts
46
95
7,356
* Total H IndexRankings
Ranking Based On Selection: 9
Oceanography
Biological Oceanography
Fisheries
Evolution & Ecology
Marine Mammalogy
Metrics
H-Index
i10 Index
Citation Counts
45
103
7,807
* Total H IndexRankings
Ranking Based On Selection: 10
Lipids
biomarkers
marine food webs
Metrics
H-Index
i10 Index
Citation Counts
43
79
8,173
* Total H IndexRankings
Ranking Based On Selection: 11
predictability in the atmosphere-ocean-climate system
madden-julian oscillation
intraseasonal
Metrics
H-Index
i10 Index
Citation Counts
37
58
11,027
* Total H IndexRankings
Ranking Based On Selection: 12
Fisheries Economics
Marine Governance
Conservation
Metrics
H-Index
i10 Index
Citation Counts
36
60
3,459
* Total H IndexRankings
Ranking Based On Selection: 13
Biological/Geological Oceanography
Seafloor mapping
Benthic Ecology
GIS
Acoustic remote sensing
Metrics
H-Index
i10 Index
Citation Counts
36
69
5,141
* Total H IndexRankings
Ranking Based On Selection: 14
coastal dynamics
groundwater
hydrology
river temperatures
permafrost
Metrics
H-Index
i10 Index
Citation Counts
35
65
4,929
* Total H IndexRankings
Ranking Based On Selection: 15
aquaculture
suspension-feeders
Metrics
H-Index
i10 Index
Citation Counts
35
85
3,610
* Total H IndexRankings
Ranking Based On Selection: 16
Ocean Science
numerical modelling
coastal and shelf dynamics
Metrics
H-Index
i10 Index
Citation Counts
34
84
3,691
* Total H IndexRankings
Ranking Based On Selection: 17
Metal Additive Manufacturing
Welding and Joining
Multi-scale Materials Characterization
Corrosion
Metrics
H-Index
i10 Index
Citation Counts
30
51
2,331
* Total H IndexRankings
Ranking Based On Selection: 18
physical oceanography
ocean mixing
internal waves
double diffusion
Metrics
H-Index
i10 Index
Citation Counts
30
46
3,578
* Total H IndexRankings
Ranking Based On Selection: 19
Stable Isotopes
Biogeochemistry
Corals
Methane
Paleoceanography
Metrics
H-Index
i10 Index
Citation Counts
28
39
3,239
* Total H IndexRankings
Ranking Based On Selection: 20
Fisheries Economics
Resource Management
Metrics
H-Index
i10 Index
Citation Counts
25
36
4,462
* Total H IndexRankings
Ranking Based On Selection: 21
Ocean Governance
Integrated Coastal Management
Piracy
Natural Resources Management
Metrics
H-Index
i10 Index
Citation Counts
25
51
2,036
* Total H IndexRankings
Ranking Based On Selection: 22
Marine Geology
Seismic Interpretation
Marine Geohazards
Sedimentology
Metrics
H-Index
i10 Index
Citation Counts
23
36
1,820
* Total H IndexRankings
Ranking Based On Selection: 23
Research data management
Open information
Service-oriented Architectures
Cloud Computing
Ocean Data
Metrics
H-Index
i10 Index
Citation Counts
22
40
2,379
* Total H IndexRankings
Ranking Based On Selection: 24
Maritime Law
Law of the Sea
Coastal Law
Arctic Shipping
Metrics
H-Index
i10 Index
Citation Counts
21
55
1,617
* Total H IndexRankings
Ranking Based On Selection: 25
eDNA instrumentation
lab on a chip
submersible sensors
Metrics
H-Index
i10 Index
Citation Counts
20
33
1,832
Trevor Platt
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
101
320
39,404
Dwr Wallace
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
171
26,136
John J Cullen
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
69
124
17,991
oceanography
phytoplankton
ocean observations
ballast water treatment issues
Marlon Lewis
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
60
119
14,208
Ocean
phytoplankton
climate
physics
Bernard Boudreau
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
52
98
11,539
Diagenesis
CaCO3 dissolution
Benthic Boundary Layer
Bubbles in Sediments
Ocean Acidification
Katja Fennel
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
49
119
10,130
ocean biogeochemistry
ocean modelling
data assimilation
hypoxia
carbon cycle
Jon Grant
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
49
90
7,216
aquaculture
coastal ecology
Paul S Hill
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
46
95
7,356
Oceanography
Marine Particle Dynamics
Sediment Transport
Christopher Taggart
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
45
103
7,807
Oceanography
Biological Oceanography
Fisheries
Evolution & Ecology
Marine Mammalogy
Suzanne M Budge
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
43
79
8,173
Lipids
biomarkers
marine food webs
Eric C Oliver
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
37
58
11,027
predictability in the atmosphere-ocean-climate system
madden-julian oscillation
intraseasonal
Megan Bailey
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
36
60
3,459
Fisheries Economics
Marine Governance
Conservation
Craig J Brown
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
36
69
5,141
Biological/Geological Oceanography
Seafloor mapping
Benthic Ecology
GIS
Acoustic remote sensing
Barret Kurylyk
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
35
65
4,929
coastal dynamics
groundwater
hydrology
river temperatures
permafrost
Ramón Filgueira
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
35
85
3,610
aquaculture
suspension-feeders
Jinyu Sheng
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
34
84
3,691
Ocean Science
numerical modelling
coastal and shelf dynamics
Ali Nasiri
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
30
51
2,331
Metal Additive Manufacturing
Welding and Joining
Multi-scale Materials Characterization
Corrosion
Dan E Kelley
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
30
46
3,578
physical oceanography
ocean mixing
internal waves
double diffusion
Owen Sherwood
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
28
39
3,239
Stable Isotopes
Biogeochemistry
Corals
Methane
Paleoceanography
Wilf Swartz
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
25
36
4,462
Fisheries Economics
Resource Management
Lucia Fanning
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
25
51
2,036
Ocean Governance
Integrated Coastal Management
Piracy
Natural Resources Management
Vittorio Maselli
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
23
36
1,820
Marine Geology
Seismic Interpretation
Marine Geohazards
Sedimentology
Mike Smit
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
22
40
2,379
Research data management
Open information
Service-oriented Architectures
Cloud Computing
Ocean Data
Aldo Chircop
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
21
55
1,617
Maritime Law
Law of the Sea
Coastal Law
Arctic Shipping
Vincent Sieben
Dalhousie University
Halifax, Canada
Metrics
H-Index
i10-Index
Citation Counts
20
33
1,832
eDNA instrumentation
lab on a chip
submersible sensors