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
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
Metrics
H-Index
i10 Index
Citation Counts
112
411
63,544
* Total H IndexRankings
Ranking Based On Selection: 2
Population ecology
Coastal ecology
Environmental change
Metrics
H-Index
i10 Index
Citation Counts
87
206
30,098
* Total H IndexRankings
Ranking Based On Selection: 3
Physical Oceanography
Metrics
H-Index
i10 Index
Citation Counts
64
148
12,006
* Total H IndexRankings
Ranking Based On Selection: 4
Genomics
Reverse Genetics
Evolution
Phytoplankton
Microbes
Metrics
H-Index
i10 Index
Citation Counts
48
92
13,211
* Total H IndexRankings
Ranking Based On Selection: 5
Organosulfur cycling
Environmental microbiology
DMSP
DMS
Marine Microbiology
Metrics
H-Index
i10 Index
Citation Counts
43
76
6,228
* Total H IndexRankings
Ranking Based On Selection: 6
Tropical meteorology
oceanography and climate
Metrics
H-Index
i10 Index
Citation Counts
40
76
6,546
* Total H IndexRankings
Ranking Based On Selection: 7
marine biogeochemistry
Metrics
H-Index
i10 Index
Citation Counts
40
67
8,157
* Total H IndexRankings
Ranking Based On Selection: 8
Stable Isotope Geochemistry
Marine Biogeochemistry
Atmospheric Chemistry
Metrics
H-Index
i10 Index
Citation Counts
39
79
5,361
* Total H IndexRankings
Ranking Based On Selection: 9
marine biogeochemistry
climate change impacts
ocean acidification
blue carbon
Metrics
H-Index
i10 Index
Citation Counts
39
69
7,415
* Total H IndexRankings
Ranking Based On Selection: 10
Environmental justice
wellbeing
conservation governance
climate
agriculture
Metrics
H-Index
i10 Index
Citation Counts
27
38
3,419
* Total H IndexRankings
Ranking Based On Selection: 11
Marine biogeochemistry
Earth-system Science
Knowledge Exchange
Aquaculture
marine CDR
Metrics
H-Index
i10 Index
Citation Counts
24
37
2,719
* Total H IndexRankings
Ranking Based On Selection: 12
maritime history
navigation
meteorology
oceanography
glaciology
Metrics
H-Index
i10 Index
Citation Counts
19
25
2,277
* Total H IndexRankings
Ranking Based On Selection: 13
Oceanography
Metrics
H-Index
i10 Index
Citation Counts
13
15
6,212
* Total H IndexRankings
Ranking Based On Selection: 14
physical oceanography
Southern Ocean
gliders
ocean mixing
Metrics
H-Index
i10 Index
Citation Counts
13
13
849
* Total H IndexRankings
Ranking Based On Selection: 15
marine science
climate change
biogeochemistry
plankton ecosystem
gelatinous zooplankton
Metrics
H-Index
i10 Index
Citation Counts
12
12
4,026
* Total H IndexRankings
Ranking Based On Selection: 16
Coastal Modelling
Metrics
H-Index
i10 Index
Citation Counts
11
13
412
* Total H IndexRankings
Ranking Based On Selection: 17
marine and terrestrial ecology
ecosystem functioning
ornithology
Metrics
H-Index
i10 Index
Citation Counts
1
1
16
* Total H IndexRankings
Ranking Based On Selection: 18
Physical Oceanography
Ocean dynamics
Metrics
H-Index
i10 Index
Citation Counts
1
1
12
Robert J Nicholls
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
112
411
63,544
Coastal Systems
Climate Change
Impacts
Adaptation
Integrated Assessment
Andrew Watkinson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
87
206
30,098
Population ecology
Coastal ecology
Environmental change
Karen J Heywood
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
64
148
12,006
Physical Oceanography
Thomas Mock
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
48
92
13,211
Genomics
Reverse Genetics
Evolution
Phytoplankton
Microbes
Jonathan D Todd
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
43
76
6,228
Organosulfur cycling
Environmental microbiology
DMSP
DMS
Marine Microbiology
Adrian Matthews
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
40
76
6,546
Tropical meteorology
oceanography and climate
Carol Robinson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
40
67
8,157
marine biogeochemistry
Jan Kaiser
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
39
79
5,361
Stable Isotope Geochemistry
Marine Biogeochemistry
Atmospheric Chemistry
Phillip Williamson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
39
69
7,415
marine biogeochemistry
climate change impacts
ocean acidification
blue carbon
Neil Dawson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
27
38
3,419
Environmental justice
wellbeing
conservation governance
climate
agriculture
Martin Johnson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
24
37
2,719
Marine biogeochemistry
Earth-system Science
Knowledge Exchange
Aquaculture
marine CDR
clive wilkinson
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
19
25
2,277
maritime history
navigation
meteorology
oceanography
glaciology
Nicolas Mayot
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
13
15
6,212
Gillian Damerell
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
13
13
849
physical oceanography
Southern Ocean
gliders
ocean mixing
Rebecca M Wright
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
12
12
4,026
marine science
climate change
biogeochemistry
plankton ecosystem
gelatinous zooplankton
John Bacon
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
11
13
412
James M Booty
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
1
1
16
marine and terrestrial ecology
ecosystem functioning
ornithology
Aparna Ar|Aparna Anitha Reghunathan
University of East Anglia
Norwich, United Kingdom
Metrics
H-Index
i10-Index
Citation Counts
1
1
12
Physical Oceanography
Ocean dynamics