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
organic geochemistry
microbiology
Metrics
H-Index
i10 Index
Citation Counts
165
848
104,224
* Total H IndexRankings
Ranking Based On Selection: 2
coastal and estuarine ecology
Metrics
H-Index
i10 Index
Citation Counts
93
348
31,697
* Total H IndexRankings
Ranking Based On Selection: 3
oceanography
geochemistry
climate change
Metrics
H-Index
i10 Index
Citation Counts
87
229
27,220
* Total H IndexRankings
Ranking Based On Selection: 4
Marine Geochemistry & (paleo)Chemical oceanography
Metrics
H-Index
i10 Index
Citation Counts
79
209
17,742
* Total H IndexRankings
Ranking Based On Selection: 5
Environmental modelling
marine biogeochemistry
food webs
Metrics
H-Index
i10 Index
Citation Counts
76
253
21,566
* Total H IndexRankings
Ranking Based On Selection: 6
biogeochemistry
oceanography
environmental sciences
paleoceanography
geobiology
Metrics
H-Index
i10 Index
Citation Counts
70
169
16,383
* Total H IndexRankings
Ranking Based On Selection: 7
phylogeography
phylogenetics
populations genetics/genomics
hybrid zones
invasive species
Metrics
H-Index
i10 Index
Citation Counts
70
145
12,976
* Total H IndexRankings
Ranking Based On Selection: 8
Oceanography
Marine Plastic Litter
Climate Science
Public Engagement
Metrics
H-Index
i10 Index
Citation Counts
66
140
18,127
* Total H IndexRankings
Ranking Based On Selection: 9
Climate change impacts on coasts
Coastal risk assessment
coastal zone management
numerical modelling of coasts
Metrics
H-Index
i10 Index
Citation Counts
66
171
25,424
* Total H IndexRankings
Ranking Based On Selection: 10
Coastal engineering
coastal morphology
numerical modeling
Metrics
H-Index
i10 Index
Citation Counts
62
170
18,514
* Total H IndexRankings
Ranking Based On Selection: 11
nearshore processes
coastal dunes
beach-dune interaction
aeolian processes
biogeomorphology
Metrics
H-Index
i10 Index
Citation Counts
61
180
11,745
* Total H IndexRankings
Ranking Based On Selection: 12
phylogenetics
phylogeography
invasive species
Metrics
H-Index
i10 Index
Citation Counts
61
117
10,221
* Total H IndexRankings
Ranking Based On Selection: 13
Marine_Ecology
Dynamic_Energy_Budget_Theory
Population_Ecology
Metrics
H-Index
i10 Index
Citation Counts
60
205
13,902
* Total H IndexRankings
Ranking Based On Selection: 14
viral ecology
marine viruses
microorganisms
food web dynamics
biogeochemical cycling
Metrics
H-Index
i10 Index
Citation Counts
59
143
13,981
* Total H IndexRankings
Ranking Based On Selection: 15
Multi-Machine Operations
Smart Shipping
Smart Logistics
Synchromodal Transport
Distributed Control
Metrics
H-Index
i10 Index
Citation Counts
57
218
12,122
* Total H IndexRankings
Ranking Based On Selection: 16
Paleoceanography
organic geochemistry
paleoclimatology
paleolimnology
Metrics
H-Index
i10 Index
Citation Counts
57
106
21,758
* Total H IndexRankings
Ranking Based On Selection: 17
Marine ecology
Metrics
H-Index
i10 Index
Citation Counts
57
153
10,406
* Total H IndexRankings
Ranking Based On Selection: 18
mariene biologie
paleontologie
geschiedenis natuurwetenschappen
Metrics
H-Index
i10 Index
Citation Counts
56
120
10,555
* Total H IndexRankings
Ranking Based On Selection: 19
Glaciology
Polar meteorology
Metrics
H-Index
i10 Index
Citation Counts
54
104
7,582
* Total H IndexRankings
Ranking Based On Selection: 20
corals
coral reefs
marine biodiversity
natural history
taxonomy
Metrics
H-Index
i10 Index
Citation Counts
54
226
15,390
* Total H IndexRankings
Ranking Based On Selection: 21
Marine phytoplankton
polar regions
ecophysiology
algal applications
Metrics
H-Index
i10 Index
Citation Counts
54
113
7,586
* Total H IndexRankings
Ranking Based On Selection: 22
marine ecosystems
plastic pollution
top predators
polar ecology
Metrics
H-Index
i10 Index
Citation Counts
53
108
16,879
* Total H IndexRankings
Ranking Based On Selection: 23
seabird demography & ecology
marine mammals
marine pollution
Metrics
H-Index
i10 Index
Citation Counts
53
156
12,170
* Total H IndexRankings
Ranking Based On Selection: 24
Marine Ecosystem Dynamics
Ecophysiology
Life History Strategy
Climate Impacts
Social Ecological Systems
Metrics
H-Index
i10 Index
Citation Counts
52
148
10,537
* Total H IndexRankings
Ranking Based On Selection: 25
microbial ecology
sediment biochemistry
cable bacteria
electron transport
Metrics
H-Index
i10 Index
Citation Counts
51
90
9,965
Jaap Sinninghe Damste
Metrics
H-Index
i10-Index
Citation Counts
165
848
104,224
organic geochemistry
microbiology
Tjeerd J Bouma
Metrics
H-Index
i10-Index
Citation Counts
93
348
31,697
coastal and estuarine ecology
Hein De Baar
Metrics
H-Index
i10-Index
Citation Counts
87
229
27,220
oceanography
geochemistry
climate change
Gert J De Lange
Utrecht University
Utrecht, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
79
209
17,742
Marine Geochemistry & (paleo)Chemical oceanography
Karline Soetaert
Metrics
H-Index
i10-Index
Citation Counts
76
253
21,566
Environmental modelling
marine biogeochemistry
food webs
Caroline P Slomp
Utrecht University
Utrecht, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
70
169
16,383
biogeochemistry
oceanography
environmental sciences
paleoceanography
geobiology
Jeanine L Olsen
University of Groningen
Groningen, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
70
145
12,976
phylogeography
phylogenetics
populations genetics/genomics
hybrid zones
invasive species
Erik Van Sebille
Utrecht University
Utrecht, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
66
140
18,127
Oceanography
Marine Plastic Litter
Climate Science
Public Engagement
Roshanka Ranasinghe
Metrics
H-Index
i10-Index
Citation Counts
66
171
25,424
Climate change impacts on coasts
Coastal risk assessment
coastal zone management
numerical modelling of coasts
Dano Ja Roelvink
Metrics
H-Index
i10-Index
Citation Counts
62
170
18,514
Coastal engineering
coastal morphology
numerical modeling
Bg Ruessink
Utrecht University
Utrecht, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
61
180
11,745
nearshore processes
coastal dunes
beach-dune interaction
aeolian processes
biogeomorphology
Wytze Stam
University of Groningen
Groningen, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
61
117
10,221
phylogenetics
phylogeography
invasive species
Jaap Van Der Meer
Metrics
H-Index
i10-Index
Citation Counts
60
205
13,902
Marine_Ecology
Dynamic_Energy_Budget_Theory
Population_Ecology
Corina Brussaard
Metrics
H-Index
i10-Index
Citation Counts
59
143
13,981
viral ecology
marine viruses
microorganisms
food web dynamics
biogeochemical cycling
Rudy R. Negenborn
Metrics
H-Index
i10-Index
Citation Counts
57
218
12,122
Multi-Machine Operations
Smart Shipping
Smart Logistics
Synchromodal Transport
Distributed Control
Jung-Hyun Kim
Metrics
H-Index
i10-Index
Citation Counts
57
106
21,758
Paleoceanography
organic geochemistry
paleoclimatology
paleolimnology
Henk W. Van Der Veer
Metrics
H-Index
i10-Index
Citation Counts
57
153
10,406
Gccadee
Metrics
H-Index
i10-Index
Citation Counts
56
120
10,555
mariene biologie
paleontologie
geschiedenis natuurwetenschappen
Carleen Reijmer
Utrecht University
Utrecht, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
54
104
7,582
Glaciology
Polar meteorology
Bert W. Hoeksema
Metrics
H-Index
i10-Index
Citation Counts
54
226
15,390
corals
coral reefs
marine biodiversity
natural history
taxonomy
AGJ Buma
University of Groningen
Groningen, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
54
113
7,586
Marine phytoplankton
polar regions
ecophysiology
algal applications
JA Van Franeker Jan Andries
Wageningen University & Research Centre
Wageningen, Netherlands
Metrics
H-Index
i10-Index
Citation Counts
53
108
16,879
marine ecosystems
plastic pollution
top predators
polar ecology
Cj Camphuysen
Metrics
H-Index
i10-Index
Citation Counts
53
156
12,170
seabird demography & ecology
marine mammals
marine pollution
Myron Peck
Metrics
H-Index
i10-Index
Citation Counts
52
148
10,537
Marine Ecosystem Dynamics
Ecophysiology
Life History Strategy
Climate Impacts
Social Ecological Systems
Henricus Eric Ts Boschker
Metrics
H-Index
i10-Index
Citation Counts
51
90
9,965
microbial ecology
sediment biochemistry
cable bacteria
electron transport