World Scientist and University Rankings 2025

Norway Natural Sciences 168 Scientists Subject Rankings - 2025

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 yearsAs of Jan 30, 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 (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
Trygve Helgaker|Trygve Ulf Helgaker
Chemistry
theoretical chemistry
quantum chemistry
molecular electronic structure
molecular properties
Metrics
H-Index
i10 Index
Citation Counts
95
312
43,348
* Total H IndexRankings
Ranking Based On Selection: 2
Stig Pedersen Bjergaard
Sample preparation
drug analysis
analytical chemistry
Metrics
H-Index
i10 Index
Citation Counts
73
215
18,813
* Total H IndexRankings
Ranking Based On Selection: 3
Georg Becher
Human exposure to organic pollutants
Metrics
H-Index
i10 Index
Citation Counts
67
121
14,297
* Total H IndexRankings
Ranking Based On Selection: 4
Dick Bedeaux
Niet evenwichts thermodynamica en statistische mechanica
Metrics
H-Index
i10 Index
Citation Counts
62
253
13,190
* Total H IndexRankings
Ranking Based On Selection: 5
Hans Peter Arp
environmental organic chemistry
partitioning
emerging contaminants
passive sampling
PMT
Metrics
H-Index
i10 Index
Citation Counts
55
120
11,382
* Total H IndexRankings
Ranking Based On Selection: 7
Bo Nyström
Polymers
Nano science
Metrics
H-Index
i10 Index
Citation Counts
52
174
8,539
* Total H IndexRankings
Ranking Based On Selection: 8
Morten Sørlie
Physical Chemistry
Enzymology
Metrics
H-Index
i10 Index
Citation Counts
47
104
9,685
* Total H IndexRankings
Ranking Based On Selection: 9
Ola Nilsen
thin film
inorganic chemistry
functional materials
Metrics
H-Index
i10 Index
Citation Counts
47
116
5,604
* Total H IndexRankings
Ranking Based On Selection: 10
Rolf David Vogt
Environmental chemistry
Hydro-biogeochemistry
natural organic matter
nutrients
heavy metals
Metrics
H-Index
i10 Index
Citation Counts
46
118
8,661

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H IndexRankings
Ranking Based On Selection: 11
Thomas Bondo Pedersen
Quantum chemistry
Electron dynamics
Attosecond science
Metrics
H-Index
i10 Index
Citation Counts
46
79
11,810
* Total H IndexRankings
Ranking Based On Selection: 12
Claus Nielsen
Radiative Forcing
CO2-capture
Chemical Kinetics
Reaction Mechanisms
Atmospheric Chemistry
Metrics
H-Index
i10 Index
Citation Counts
46
173
11,833
* Total H IndexRankings
Ranking Based On Selection: 13
Reidar Haugsrud
Solid-state electrochemistry
Energy conversion
Solid-State Ionics
Hydrogen in Oxides
High-Temperature Corrosion
Metrics
H-Index
i10 Index
Citation Counts
45
124
6,752
* Total H IndexRankings
Ranking Based On Selection: 14
Luca Nizzetto
Environmental chemistry
Risk assessment
Food safety
Plastic Pollution
Metrics
H-Index
i10 Index
Citation Counts
44
84
10,427
* Total H IndexRankings
Ranking Based On Selection: 15
Frode Rise
Organic chemistry
nuclear magnetic resonance spectroscopy
medicine
pharmacognosy
physics
Metrics
H-Index
i10 Index
Citation Counts
44
120
5,896
* Total H IndexRankings
Ranking Based On Selection: 16
John S. Mjøen Svendsen
organisk syntese
legemiddelkjemi
antimikrobielle stoffer
Metrics
H-Index
i10 Index
Citation Counts
44
79
6,321
* Total H IndexRankings
Ranking Based On Selection: 17
Michael Stöcker
Chemistry
Spectroscopy
Catalysis
Zeolites
Porous Materials
Metrics
H-Index
i10 Index
Citation Counts
44
99
11,677
* Total H IndexRankings
Ranking Based On Selection: 18
Peter Ruoff
Molecular and kinetic mechanisms of adaptation and homeostasis
Metrics
H-Index
i10 Index
Citation Counts
43
121
6,258
* Total H IndexRankings
Ranking Based On Selection: 19
Per Olof Åstrand
Molecular Modeling
Quantum Chemistry
Molecular Dynamics
Metrics
H-Index
i10 Index
Citation Counts
43
95
5,991
* Total H IndexRankings
Ranking Based On Selection: 20
yvan orsolini
Middle atmosphere dynamics and chemistry - Energetic Particle Precipitation - Role of cryosphere in
Metrics
H-Index
i10 Index
Citation Counts
41
93
5,221
* Total H IndexRankings
Ranking Based On Selection: 21
Odne Stokke Burheim
Electrochemical systems
Li-ion battery
Novel hydrogen conversion
Electrodialytic flow cell technologies
Battery value chain
Metrics
H-Index
i10 Index
Citation Counts
39
102
4,936
* Total H IndexRankings
Ranking Based On Selection: 22
Reidar Lund
soft matter science
polymer science
peptides
self-assembly
X-ray and neutron scattering techniques
Metrics
H-Index
i10 Index
Citation Counts
38
79
3,747
* Total H IndexRankings
Ranking Based On Selection: 23
Steven Ray Wilson
Analytical chemistry
Chromatography
Mass Spectrometry
Organoids
Metrics
H-Index
i10 Index
Citation Counts
38
67
4,639
* Total H IndexRankings
Ranking Based On Selection: 24
Ole Martin Løvvik
Hydrogen
Thermoelectricity
Functional energy materials
Ab initio atomistic simulations
Metrics
H-Index
i10 Index
Citation Counts
37
94
5,922
* Total H IndexRankings
Ranking Based On Selection: 25
Jos Benders
ORGANIZATION CONCEPTS
MEDIEVAL COINAGE
LEAN HEALTH CARE
Metrics
H-Index
i10 Index
Citation Counts
37
86
5,096
* Total H Index Rankings
Rankings
Ranking Based On Selection: 1
Trygve Helgaker|Trygve Ulf Helgaker
Metrics
H-Index
i10-Index
Citation Counts
95
312
43,348
Chemistry
theoretical chemistry
quantum chemistry
molecular electronic structure
molecular properties
* Total H Index Rankings
Rankings
Ranking Based On Selection: 2
Stig Pedersen Bjergaard
Metrics
H-Index
i10-Index
Citation Counts
73
215
18,813
Sample preparation
drug analysis
analytical chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 3
Georg Becher
Metrics
H-Index
i10-Index
Citation Counts
67
121
14,297
* Total H Index Rankings
Rankings
Ranking Based On Selection: 4
Dick Bedeaux
Metrics
H-Index
i10-Index
Citation Counts
62
253
13,190
Niet evenwichts thermodynamica en statistische mechanica
* Total H Index Rankings
Rankings
Ranking Based On Selection: 5
Hans Peter Arp
Metrics
H-Index
i10-Index
Citation Counts
55
120
11,382
environmental organic chemistry
partitioning
emerging contaminants
passive sampling
PMT
* Total H Index Rankings
Rankings
Ranking Based On Selection: 6
Knut Breivik
Metrics
H-Index
i10-Index
Citation Counts
53
98
11,930
* Total H Index Rankings
Rankings
Ranking Based On Selection: 7
Bo Nyström
Metrics
H-Index
i10-Index
Citation Counts
52
174
8,539
* Total H Index Rankings
Rankings
Ranking Based On Selection: 8
Morten Sørlie
Metrics
H-Index
i10-Index
Citation Counts
47
104
9,685
* Total H Index Rankings
Rankings
Ranking Based On Selection: 9
Ola Nilsen
Metrics
H-Index
i10-Index
Citation Counts
47
116
5,604
thin film
inorganic chemistry
functional materials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 10
Rolf David Vogt
Metrics
H-Index
i10-Index
Citation Counts
46
118
8,661
Environmental chemistry
Hydro-biogeochemistry
natural organic matter
nutrients
heavy metals

Enroll all your faculty members with discounted institutional membership to showcase your institution's academic strength to the world in the best way possible – join now and achieve results fast! 

* Total H Index Rankings
Rankings
Ranking Based On Selection: 11
Thomas Bondo Pedersen
Metrics
H-Index
i10-Index
Citation Counts
46
79
11,810
Quantum chemistry
Electron dynamics
Attosecond science
* Total H Index Rankings
Rankings
Ranking Based On Selection: 12
Claus Nielsen
Metrics
H-Index
i10-Index
Citation Counts
46
173
11,833
Radiative Forcing
CO2-capture
Chemical Kinetics
Reaction Mechanisms
Atmospheric Chemistry
* Total H Index Rankings
Rankings
Ranking Based On Selection: 13
Reidar Haugsrud
Metrics
H-Index
i10-Index
Citation Counts
45
124
6,752
Solid-state electrochemistry
Energy conversion
Solid-State Ionics
Hydrogen in Oxides
High-Temperature Corrosion
* Total H Index Rankings
Rankings
Ranking Based On Selection: 14
Luca Nizzetto
Metrics
H-Index
i10-Index
Citation Counts
44
84
10,427
Environmental chemistry
Risk assessment
Food safety
Plastic Pollution
* Total H Index Rankings
Rankings
Ranking Based On Selection: 15
Frode Rise
Metrics
H-Index
i10-Index
Citation Counts
44
120
5,896
Organic chemistry
nuclear magnetic resonance spectroscopy
medicine
pharmacognosy
physics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 16
John S. Mjøen Svendsen
Metrics
H-Index
i10-Index
Citation Counts
44
79
6,321
organisk syntese
legemiddelkjemi
antimikrobielle stoffer
* Total H Index Rankings
Rankings
Ranking Based On Selection: 17
Michael Stöcker
SINTEF Trondheim, Norway
Metrics
H-Index
i10-Index
Citation Counts
44
99
11,677
Chemistry
Spectroscopy
Catalysis
Zeolites
Porous Materials
* Total H Index Rankings
Rankings
Ranking Based On Selection: 18
Peter Ruoff
Metrics
H-Index
i10-Index
Citation Counts
43
121
6,258
Molecular and kinetic mechanisms of adaptation and homeostasis
* Total H Index Rankings
Rankings
Ranking Based On Selection: 19
Per Olof Åstrand
Metrics
H-Index
i10-Index
Citation Counts
43
95
5,991
Molecular Modeling
Quantum Chemistry
Molecular Dynamics
* Total H Index Rankings
Rankings
Ranking Based On Selection: 20
yvan orsolini
Metrics
H-Index
i10-Index
Citation Counts
41
93
5,221
Middle atmosphere dynamics and chemistry - Energetic Particle Precipitation - Role of cryosphere in
* Total H Index Rankings
Rankings
Ranking Based On Selection: 21
Odne Stokke Burheim
Metrics
H-Index
i10-Index
Citation Counts
39
102
4,936
Electrochemical systems
Li-ion battery
Novel hydrogen conversion
Electrodialytic flow cell technologies
Battery value chain
* Total H Index Rankings
Rankings
Ranking Based On Selection: 22
Reidar Lund
Metrics
H-Index
i10-Index
Citation Counts
38
79
3,747
soft matter science
polymer science
peptides
self-assembly
X-ray and neutron scattering techniques
* Total H Index Rankings
Rankings
Ranking Based On Selection: 23
Steven Ray Wilson
Metrics
H-Index
i10-Index
Citation Counts
38
67
4,639
Analytical chemistry
Chromatography
Mass Spectrometry
Organoids
* Total H Index Rankings
Rankings
Ranking Based On Selection: 24
Ole Martin Løvvik
Metrics
H-Index
i10-Index
Citation Counts
37
94
5,922
Hydrogen
Thermoelectricity
Functional energy materials
Ab initio atomistic simulations
* Total H Index Rankings
Rankings
Ranking Based On Selection: 25
Jos Benders
Metrics
H-Index
i10-Index
Citation Counts
37
86
5,096
ORGANIZATION CONCEPTS
MEDIEVAL COINAGE
LEAN HEALTH CARE