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 14, 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 (875.720) 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
Global Change
Ecology
Carbon Cycle
Modeling
Metrics
H-Index
i10 Index
Citation Counts
112
236
59,430
* Total H IndexRankings
Ranking Based On Selection: 2
Physical Oceanography
Sea Ice
Arctic Climate
Metrics
H-Index
i10 Index
Citation Counts
93
515
40,751
* Total H IndexRankings
Ranking Based On Selection: 3
permafrost
environmental change
Metrics
H-Index
i10 Index
Citation Counts
92
225
41,570
* Total H IndexRankings
Ranking Based On Selection: 4
Arctic climate
weather
ice and snow
extreme events
Metrics
H-Index
i10 Index
Citation Counts
92
191
29,355
* Total H IndexRankings
Ranking Based On Selection: 5
Arctic ecology
vegetation science
vegetation classification
remote sensing
plant community ecology
Metrics
H-Index
i10 Index
Citation Counts
87
212
31,702
* Total H IndexRankings
Ranking Based On Selection: 6
Arctic water isotope cycle
climate change
Arctic Food Web Ecology
Predatory-Prey Inte
Metrics
H-Index
i10 Index
Citation Counts
78
221
32,261
* Total H IndexRankings
Ranking Based On Selection: 7
Metrics
H-Index
i10 Index
Citation Counts
70
176
16,636
* Total H IndexRankings
Ranking Based On Selection: 8
Metrics
H-Index
i10 Index
Citation Counts
67
120
22,818
* Total H IndexRankings
Ranking Based On Selection: 9
Arctic Science
Metrics
H-Index
i10 Index
Citation Counts
66
117
19,725
* Total H IndexRankings
Ranking Based On Selection: 10
Terrestrial ecology in high-latitudes
Metrics
H-Index
i10 Index
Citation Counts
62
116
22,639
* Total H IndexRankings
Ranking Based On Selection: 11
neuroscience
diabetes
cardiovascular disease
fatty acids
evolution
Metrics
H-Index
i10 Index
Citation Counts
61
159
10,872
* Total H IndexRankings
Ranking Based On Selection: 12
glaciology
Metrics
H-Index
i10 Index
Citation Counts
60
111
22,257
* Total H IndexRankings
Ranking Based On Selection: 13
Glaciers and Climate
Metrics
H-Index
i10 Index
Citation Counts
60
115
13,853
* Total H IndexRankings
Ranking Based On Selection: 14
boreal forest ecology plant-herbivore interaction biogeochemical cycling
Metrics
H-Index
i10 Index
Citation Counts
60
100
11,633
* Total H IndexRankings
Ranking Based On Selection: 15
Evolutionary Biology
Birds
Migration
Biodiversity
Population Genomics
Metrics
H-Index
i10 Index
Citation Counts
57
150
16,788
* Total H IndexRankings
Ranking Based On Selection: 16
hibernation
cryobiology
biological rhythms
Metrics
H-Index
i10 Index
Citation Counts
56
119
9,834
* Total H IndexRankings
Ranking Based On Selection: 17
40Ar/39Ar geochronology
Metrics
H-Index
i10 Index
Citation Counts
55
156
9,016
* Total H IndexRankings
Ranking Based On Selection: 18
Infectious Diseases
Epidemiology
Metrics
H-Index
i10 Index
Citation Counts
54
137
11,915
* Total H IndexRankings
Ranking Based On Selection: 19
Chemical oceanography
Metrics
H-Index
i10 Index
Citation Counts
54
102
8,175
* Total H IndexRankings
Ranking Based On Selection: 20
Climate
Arctic Climate
Alaska Climate
Climate Variability
Climate Dynamics
Metrics
H-Index
i10 Index
Citation Counts
52
97
11,054
* Total H IndexRankings
Ranking Based On Selection: 21
polar oceanography
climate change
multidecadal variability
Arctic
North Atlantic
Metrics
H-Index
i10 Index
Citation Counts
52
94
11,681
* Total H IndexRankings
Ranking Based On Selection: 22
zooplankton
arctic ecosystems
Arctic
Gulf of Alaska
Metrics
H-Index
i10 Index
Citation Counts
52
125
9,099
* Total H IndexRankings
Ranking Based On Selection: 23
Metrics
H-Index
i10 Index
Citation Counts
52
121
8,379
* Total H IndexRankings
Ranking Based On Selection: 24
Metrics
H-Index
i10 Index
Citation Counts
51
150
21,056
* Total H IndexRankings
Ranking Based On Selection: 25
Soils
permafrost
carbon
Metrics
H-Index
i10 Index
Citation Counts
51
116
11,953
Anthony David Mcguire
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
112
236
59,430
Global Change
Ecology
Carbon Cycle
Modeling
Mark Andrew Johnson
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
93
515
40,751
Physical Oceanography
Sea Ice
Arctic Climate
Vladimir Romanovsky
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
92
225
41,570
John Walsh
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
92
191
29,355
Arctic climate
weather
ice and snow
extreme events
Da Walker
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
87
212
31,702
Arctic ecology
vegetation science
vegetation classification
remote sensing
plant community ecology
Jeffrey M Welker
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
78
221
32,261
Arctic water isotope cycle
climate change
Arctic Food Web Ecology
Predatory-Prey Inte
Hajo Eicken
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
70
176
16,636
Matthew Sturm
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
67
120
22,818
Larry Hinzman
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
66
117
19,725
Eugenie Euskirchen
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
62
116
22,639
Terrestrial ecology in high-latitudes
Sven Ebbesson
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
61
159
10,872
neuroscience
diabetes
cardiovascular disease
fatty acids
evolution
Regine Hock
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
60
111
22,257
Mark Fahnestock
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
60
115
13,853
Roger W Ruess
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
60
100
11,633
boreal forest ecology plant-herbivore interaction biogeochemical cycling
Kevin Winker
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
57
150
16,788
Evolutionary Biology
Birds
Migration
Biodiversity
Population Genomics
Brian M Barnes
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
56
119
9,834
hibernation
cryobiology
biological rhythms
Paul W Layer
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
55
156
9,016
Thomas Hennessy
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
54
137
11,915
Infectious Diseases
Epidemiology
S Bradley Moran
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
54
102
8,175
Uma Bhatt
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
52
97
11,054
Climate
Arctic Climate
Alaska Climate
Climate Variability
Climate Dynamics
Igor Polyakov
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
52
94
11,681
polar oceanography
climate change
multidecadal variability
Arctic
North Atlantic
Russell Hopcroft
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
52
125
9,099
zooplankton
arctic ecosystems
Arctic
Gulf of Alaska
Katrin Iken
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
52
121
8,379
Falk Huettmann
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
51
150
21,056
Chien Lu Ping
University of Alaska Fairbanks
Fairbanks, United States
Metrics
H-Index
i10-Index
Citation Counts
51
116
11,953
Soils
permafrost
carbon