World Scientist and University Rankings 2025

Iceland Natural Sciences 197 Scientists Subject Rankings - 2025

The AD Scientific Index (Alper-Doger Scientific Index) provides the most comprehensive analysis across 13 main fields and 211 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 yearsAs of Jun 06, 2025, the rankings are determined according to the Total H IndexBETA 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 (1.121.279) 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
Vilmundur Gudnason
Genetics of common
chronic disease. Disease risk assessmen
Metrics
H-Index
i10 Index
Citation Counts
198
756
213,777
* Total H IndexRankings
Ranking Based On Selection: 2
Daniel Gudbjartsson
Statistical Genetic
Metrics
H-Index
i10 Index
Citation Counts
138
294
89,759
* Total H IndexRankings
Ranking Based On Selection: 3
Guðlaugur Jóhannesson
Astro particle physics
high-energy gamma rays
Cosmic rays
gamma-ray bursts
interstellar mediu
Metrics
H-Index
i10 Index
Citation Counts
132
254
68,872
* Total H IndexRankings
Ranking Based On Selection: 5
Thor Aspelund
Statistics
biostatistics
survival analysis
clinical prediction model
Metrics
H-Index
i10 Index
Citation Counts
106
300
145,029
* Total H IndexRankings
Ranking Based On Selection: 6
Gísli Másson
Bioinformatics
Human Genetics
Genomics
Computational Biology
Algebr
Metrics
H-Index
i10 Index
Citation Counts
84
121
37,283
* Total H IndexRankings
Ranking Based On Selection: 7
Pall Jakobsson
Gamma-Ray Bursts
Cosmology
Galaxy Evolutio
Metrics
H-Index
i10 Index
Citation Counts
74
227
25,666
* Total H IndexRankings
Ranking Based On Selection: 9
Hannes Jónsson
computational science
rate theory
electronic structure
catalysis
nanocluster
Metrics
H-Index
i10 Index
Citation Counts
72
207
85,058
* Total H IndexRankings
Ranking Based On Selection: 10
Thorgeir Thorgeirsson
genetics
psychiatric genetics
addictio
Metrics
H-Index
i10 Index
Citation Counts
70
115
37,037

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Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
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* Total H IndexRankings
Ranking Based On Selection: 11
Bjarni V. Halldorsson
Computational Biology
Bioinformatics
Genetics
Algorithm
Metrics
H-Index
i10 Index
Citation Counts
62
119
21,308
* Total H IndexRankings
Ranking Based On Selection: 12
Jon E Gudmundsson
The Cosmic Microwave Background. Early universe models
large scale structure
and general cosmology
Metrics
H-Index
i10 Index
Citation Counts
61
113
77,041
* Total H IndexRankings
Ranking Based On Selection: 13
Ivan Shelykh
Quantum physics: theor
Metrics
H-Index
i10 Index
Citation Counts
60
212
13,222
* Total H IndexRankings
Ranking Based On Selection: 14
Michael Frigge
statistical genetic
Metrics
H-Index
i10 Index
Citation Counts
59
68
28,339
* Total H IndexRankings
Ranking Based On Selection: 15
Unnur Styrkarsdottir
human genetics
molecular biology
osteoporosis
osteoarthritis
microbiom
Metrics
H-Index
i10 Index
Citation Counts
57
81
22,902
* Total H IndexRankings
Ranking Based On Selection: 17
Gudmundur Hrafn Gudmundsson
innate immunity
infection
inflammation
gene regulation
epitheli
Metrics
H-Index
i10 Index
Citation Counts
54
89
15,964
* Total H IndexRankings
Ranking Based On Selection: 18
Snorri Sigurdsson
Nucleic acids chemistry
nitroxides
EPR spectroscop
Metrics
H-Index
i10 Index
Citation Counts
53
137
7,670
* Total H IndexRankings
Ranking Based On Selection: 19
Sigurjon A. Gudjonsson|Sigurjón Axel Guðjónsson, Sigurjon Guðjonsson, Sigurjon Axel Gudjonsson
Computational Biology
Genomics
Comparative Genomics
Regulatory Genomics
Population Genetic
Metrics
H-Index
i10 Index
Citation Counts
52
63
20,311
* Total H IndexRankings
Ranking Based On Selection: 20
Nikolay Gagunashvili
Methods of data analysis for experimental particle physics
human genetics
mathematical physic
Metrics
H-Index
i10 Index
Citation Counts
51
83
21,262
* Total H IndexRankings
Ranking Based On Selection: 21
Eirikur Steingrimsson
molecular biology
genetics
development
melanocytes
melanom
Metrics
H-Index
i10 Index
Citation Counts
48
82
11,137
* Total H IndexRankings
Ranking Based On Selection: 22
Brynhildur Davidsdottir
Ecological economics
industrial ecolog
Metrics
H-Index
i10 Index
Citation Counts
45
123
9,262
* Total H IndexRankings
Ranking Based On Selection: 24
Gyda Bjornsdottir
genetics
epidemiology
informatic
Metrics
H-Index
i10 Index
Citation Counts
41
55
20,545
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Vilmundur Gudnason
          Metrics
H-Index
i10-Index
Citation Counts
198
756
213,777
Genetics of common
chronic disease. Disease risk assessmen
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Daniel Gudbjartsson
          Metrics
H-Index
i10-Index
Citation Counts
138
294
89,759
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Guðlaugur Jóhannesson
          Metrics
H-Index
i10-Index
Citation Counts
132
254
68,872
Astro particle physics
high-energy gamma rays
Cosmic rays
gamma-ray bursts
interstellar mediu
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Patrick Sulem
          Metrics
H-Index
i10-Index
Citation Counts
113
234
57,968
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Thor Aspelund
          Metrics
H-Index
i10-Index
Citation Counts
106
300
145,029
Statistics
biostatistics
survival analysis
clinical prediction model
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Gísli Másson
          Metrics
H-Index
i10-Index
Citation Counts
84
121
37,283
Bioinformatics
Human Genetics
Genomics
Computational Biology
Algebr
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Pall Jakobsson
          Metrics
H-Index
i10-Index
Citation Counts
74
227
25,666
Gamma-Ray Bursts
Cosmology
Galaxy Evolutio
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Sigurdur R Gislason
          Metrics
H-Index
i10-Index
Citation Counts
72
162
19,147
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Hannes Jónsson
          Metrics
H-Index
i10-Index
Citation Counts
72
207
85,058
computational science
rate theory
electronic structure
catalysis
nanocluster
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Thorgeir Thorgeirsson
          Metrics
H-Index
i10-Index
Citation Counts
70
115
37,037

Is Your University Ready for the Future?

Compare your institution’s global, national, and city-level ranking with its 20 closest competitors and set strategic goals.
Gain insights from detailed performance analyses of scientists across 13 major disciplines, identify your strengths, improve weaknesses, and gain a competitive edge.. Check Your Free Sample Performance Analysis

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Bjarni V. Halldorsson
          Metrics
H-Index
i10-Index
Citation Counts
62
119
21,308
Computational Biology
Bioinformatics
Genetics
Algorithm
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Jon E Gudmundsson
          Metrics
H-Index
i10-Index
Citation Counts
61
113
77,041
The Cosmic Microwave Background. Early universe models
large scale structure
and general cosmology
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Ivan Shelykh
          Metrics
H-Index
i10-Index
Citation Counts
60
212
13,222
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Michael Frigge
          Metrics
H-Index
i10-Index
Citation Counts
59
68
28,339
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Unnur Styrkarsdottir
          Metrics
H-Index
i10-Index
Citation Counts
57
81
22,902
human genetics
molecular biology
osteoporosis
osteoarthritis
microbiom
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
Jorunn E Eyfjord
          Metrics
H-Index
i10-Index
Citation Counts
57
99
38,777
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Gudmundur Hrafn Gudmundsson
          Metrics
H-Index
i10-Index
Citation Counts
54
89
15,964
innate immunity
infection
inflammation
gene regulation
epitheli
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Snorri Sigurdsson
          Metrics
H-Index
i10-Index
Citation Counts
53
137
7,670
Nucleic acids chemistry
nitroxides
EPR spectroscop
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Sigurjon A. Gudjonsson|Sigurjón Axel Guðjónsson, Sigurjon Guðjonsson, Sigurjon Axel Gudjonsson
          Metrics
H-Index
i10-Index
Citation Counts
52
63
20,311
Computational Biology
Genomics
Comparative Genomics
Regulatory Genomics
Population Genetic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
Nikolay Gagunashvili
          Metrics
H-Index
i10-Index
Citation Counts
51
83
21,262
Methods of data analysis for experimental particle physics
human genetics
mathematical physic
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Eirikur Steingrimsson
          Metrics
H-Index
i10-Index
Citation Counts
48
82
11,137
molecular biology
genetics
development
melanocytes
melanom
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Brynhildur Davidsdottir
          Metrics
H-Index
i10-Index
Citation Counts
45
123
9,262
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Þorvaldur Ingvarsson
          Metrics
H-Index
i10-Index
Citation Counts
44
70
9,132
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Gyda Bjornsdottir
          Metrics
H-Index
i10-Index
Citation Counts
41
55
20,545
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Andrei Manolescu
          Metrics
H-Index
i10-Index
Citation Counts
41
149
23,788