University, Subject, Country, Region, World
Norwegian Institute for Water Research 152 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 years. As of Jan 31, 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 (870.053) 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
Metrics
H-Index
i10 Index
Citation Counts
76
199
16,159
* Total H IndexRankings
Ranking Based On Selection: 2
Nature-based solutions
Biodiversity
Ecosystem functioning
Freshwaters
Rivers
Metrics
H-Index
i10 Index
Citation Counts
54
127
9,573
* Total H IndexRankings
Ranking Based On Selection: 3
Ecotoxicology
hazard assessment
risk assessment
ecotoxicogenomics
effect assessment
Metrics
H-Index
i10 Index
Citation Counts
53
143
9,916
* Total H IndexRankings
Ranking Based On Selection: 4
ocean acidification
ecosystems
marginal seas
polar oceans
socioecology
Metrics
H-Index
i10 Index
Citation Counts
49
113
10,713
* Total H IndexRankings
Ranking Based On Selection: 5
Metrics
H-Index
i10 Index
Citation Counts
48
98
9,326
* Total H IndexRankings
Ranking Based On Selection: 6
microplastic
marine litter
plastics
microplastics
pollution
Metrics
H-Index
i10 Index
Citation Counts
44
79
17,914
* Total H IndexRankings
Ranking Based On Selection: 7
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: 8
Marine biology
Metrics
H-Index
i10 Index
Citation Counts
43
82
7,853
* Total H IndexRankings
Ranking Based On Selection: 9
Running waters
Biodiversity
Aquatic ecology
Restoration
Metrics
H-Index
i10 Index
Citation Counts
42
77
7,926
* Total H IndexRankings
Ranking Based On Selection: 10
Metrics
H-Index
i10 Index
Citation Counts
41
67
6,631
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
Environmental chemistry
passive sampling
environmental sciences
pollution
Metrics
H-Index
i10 Index
Citation Counts
40
75
7,207
* Total H IndexRankings
Ranking Based On Selection: 12
Environmental Sciences
Ecotoxicology
Environmental chemistry
Metrics
H-Index
i10 Index
Citation Counts
40
59
4,570
* Total H IndexRankings
Ranking Based On Selection: 13
Biogeochemistry
carbon cycle
water quality
Metrics
H-Index
i10 Index
Citation Counts
39
72
6,733
* Total H IndexRankings
Ranking Based On Selection: 14
Comparative stress physiology
Fish welfare
Fish behavior.
Metrics
H-Index
i10 Index
Citation Counts
39
72
4,931
* Total H IndexRankings
Ranking Based On Selection: 15
Metrics
H-Index
i10 Index
Citation Counts
37
56
4,156
* Total H IndexRankings
Ranking Based On Selection: 16
Population dynamics of marine organisms
statistical analyses of spatiotemporal data
Metrics
H-Index
i10 Index
Citation Counts
37
63
5,498
* Total H IndexRankings
Ranking Based On Selection: 17
environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
Metrics
H-Index
i10 Index
Citation Counts
36
75
4,844
* Total H IndexRankings
Ranking Based On Selection: 18
Aquatic ecology
Water management
Eutrophication
Metrics
H-Index
i10 Index
Citation Counts
33
59
6,352
* Total H IndexRankings
Ranking Based On Selection: 19
freshwater ecology
Metrics
H-Index
i10 Index
Citation Counts
33
71
4,450
* Total H IndexRankings
Ranking Based On Selection: 20
Environmental toxicology
ecotoxicology
biomarkers
risk assessment
Metrics
H-Index
i10 Index
Citation Counts
33
47
11,242
* Total H IndexRankings
Ranking Based On Selection: 21
Ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
32
51
3,880
* Total H IndexRankings
Ranking Based On Selection: 22
Ecotoxicology
Marine Biology
Bioaccumulation
Food Chain
Biological Effects
Metrics
H-Index
i10 Index
Citation Counts
32
81
4,415
* Total H IndexRankings
Ranking Based On Selection: 23
Freshwater ecology
macroinvertebrates
ecosystem function
environmental contaminants
Metrics
H-Index
i10 Index
Citation Counts
31
52
4,429
* Total H IndexRankings
Ranking Based On Selection: 24
Ecology
Ecotoxicology
Environmental risk assessment
Metrics
H-Index
i10 Index
Citation Counts
31
62
5,078
* Total H IndexRankings
Ranking Based On Selection: 25
marine biology
microalgae
systematics
Metrics
H-Index
i10 Index
Citation Counts
31
55
4,634
Bert Van Bavel
Metrics
H-Index
i10-Index
Citation Counts
76
199
16,159
Nikolai Friberg
Metrics
H-Index
i10-Index
Citation Counts
54
127
9,573
Nature-based solutions
Biodiversity
Ecosystem functioning
Freshwaters
Rivers
Knut Erik Tollefsen
Metrics
H-Index
i10-Index
Citation Counts
53
143
9,916
Ecotoxicology
hazard assessment
risk assessment
ecotoxicogenomics
effect assessment
Richard Bellerby
Metrics
H-Index
i10-Index
Citation Counts
49
113
10,713
ocean acidification
ecosystems
marginal seas
polar oceans
socioecology
Thorjorn Larssen
Metrics
H-Index
i10-Index
Citation Counts
48
98
9,326
Amy Lusher
Metrics
H-Index
i10-Index
Citation Counts
44
79
17,914
microplastic
marine litter
plastics
microplastics
pollution
Luca Nizzetto
Metrics
H-Index
i10-Index
Citation Counts
44
84
10,427
Environmental chemistry
Risk assessment
Food safety
Plastic Pollution
Hartvig Christie
Metrics
H-Index
i10-Index
Citation Counts
43
82
7,853
Leonard Sandin
Metrics
H-Index
i10-Index
Citation Counts
42
77
7,926
Running waters
Biodiversity
Aquatic ecology
Restoration
Malcolm J Reid
Metrics
H-Index
i10-Index
Citation Counts
41
67
6,631
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!
Ian John Allan
Metrics
H-Index
i10-Index
Citation Counts
40
75
7,207
Environmental chemistry
passive sampling
environmental sciences
pollution
Elisabeth Lie
Metrics
H-Index
i10-Index
Citation Counts
40
59
4,570
Environmental Sciences
Ecotoxicology
Environmental chemistry
Heleen A de Wit
Metrics
H-Index
i10-Index
Citation Counts
39
72
6,733
Biogeochemistry
carbon cycle
water quality
Erik Höglund
Metrics
H-Index
i10-Index
Citation Counts
39
72
4,931
Andreas Ballot
Metrics
H-Index
i10-Index
Citation Counts
37
56
4,156
Dag Øystein Hjermann
Metrics
H-Index
i10-Index
Citation Counts
37
63
5,498
Population dynamics of marine organisms
statistical analyses of spatiotemporal data
Merete Grung
Metrics
H-Index
i10-Index
Citation Counts
36
75
4,844
environmental risk assessment
organic contaminants
ecotoxicology
environmental monitoring
PFAS
Anne Lyche Solheim
Metrics
H-Index
i10-Index
Citation Counts
33
59
6,352
Aquatic ecology
Water management
Eutrophication
Susanne Schneider
Metrics
H-Index
i10-Index
Citation Counts
33
71
4,450
Jonny Beyer
Metrics
H-Index
i10-Index
Citation Counts
33
47
11,242
Environmental toxicology
ecotoxicology
biomarkers
risk assessment
Tânia Gomes
Metrics
H-Index
i10-Index
Citation Counts
32
51
3,880
Anders Ruus
Metrics
H-Index
i10-Index
Citation Counts
32
81
4,415
Ecotoxicology
Marine Biology
Bioaccumulation
Food Chain
Biological Effects
Jes Jessen Rasmussen
Metrics
H-Index
i10-Index
Citation Counts
31
52
4,429
Freshwater ecology
macroinvertebrates
ecosystem function
environmental contaminants
Jannicke Moe
Metrics
H-Index
i10-Index
Citation Counts
31
62
5,078
Ecology
Ecotoxicology
Environmental risk assessment
Wenche Eikrem
Metrics
H-Index
i10-Index
Citation Counts
31
55
4,634
marine biology
microalgae
systematics