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 (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
Environmental Toxicology
Environmental Chemistry
Risk Assessment
Metrics
H-Index
i10 Index
Citation Counts
72
171
15,953
* Total H IndexRankings
Ranking Based On Selection: 2
Environmental Pollution
Environmental Risk Assessment
Fish Biology
Endocrine Disruption
Mechanisms of Toxic Action
Metrics
H-Index
i10 Index
Citation Counts
64
180
12,218
* Total H IndexRankings
Ranking Based On Selection: 3
Environmental Assessment
Metrics
H-Index
i10 Index
Citation Counts
46
107
6,589
* Total H IndexRankings
Ranking Based On Selection: 4
Environmental Toxicology
Metrics
H-Index
i10 Index
Citation Counts
36
81
4,294
* Total H IndexRankings
Ranking Based On Selection: 5
conservation biology
ornithology
ecology
Metrics
H-Index
i10 Index
Citation Counts
36
70
4,037
* Total H IndexRankings
Ranking Based On Selection: 6
Environmental catalysis
Metrics
H-Index
i10 Index
Citation Counts
34
56
3,927
* Total H IndexRankings
Ranking Based On Selection: 7
Waste Biomass to green fuels
Thermochemical and Biochemical conversion of Waste biomass to Liquid
Metrics
H-Index
i10 Index
Citation Counts
32
55
4,443
* Total H IndexRankings
Ranking Based On Selection: 8
watershed management
water quality
oilsands tailings waters
climate extremes
Metrics
H-Index
i10 Index
Citation Counts
28
56
2,954
* Total H IndexRankings
Ranking Based On Selection: 9
Postharvest processing
compation and compression of agricultural straw
IR Spectroscopy
Metrics
H-Index
i10 Index
Citation Counts
28
39
2,554
* Total H IndexRankings
Ranking Based On Selection: 10
water and human health
Metrics
H-Index
i10 Index
Citation Counts
25
49
3,025
* Total H IndexRankings
Ranking Based On Selection: 11
Collective action in environmental governance
commons
migration-environment-development nexus
land system science
Metrics
H-Index
i10 Index
Citation Counts
21
46
1,863
* Total H IndexRankings
Ranking Based On Selection: 12
intuitive interspecies communication
multispecies
more-than-human methods
transformative learning
Metrics
H-Index
i10 Index
Citation Counts
19
22
1,157
* Total H IndexRankings
Ranking Based On Selection: 13
Stable Isotope Geochemistry
Metrics
H-Index
i10 Index
Citation Counts
18
24
895
* Total H IndexRankings
Ranking Based On Selection: 14
Environmental chemistry
Human Health
Metrics
H-Index
i10 Index
Citation Counts
17
29
915
* Total H IndexRankings
Ranking Based On Selection: 15
Hydrology
water resources
climate change
Metrics
H-Index
i10 Index
Citation Counts
16
23
1,349
* Total H IndexRankings
Ranking Based On Selection: 16
Indigenous environmental management
disaster risk reduction
emergency management
Indigenous
Metrics
H-Index
i10 Index
Citation Counts
16
22
1,318
* Total H IndexRankings
Ranking Based On Selection: 17
Environmental Toxicology
Sediment
Bioavailability
Risk Assessment
Ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
15
21
996
* Total H IndexRankings
Ranking Based On Selection: 18
Conservation Biology
Environmental Education
Plant Ecology
Vegetation Science
Metrics
H-Index
i10 Index
Citation Counts
13
15
581
* Total H IndexRankings
Ranking Based On Selection: 19
pesticides
agroecosystems
aquatic ecology
wild pollinators
ecotoxicology
Metrics
H-Index
i10 Index
Citation Counts
12
13
1,656
* Total H IndexRankings
Ranking Based On Selection: 20
human-water interaction
resilience in human-nature systems
climate adaptation
Metrics
H-Index
i10 Index
Citation Counts
11
11
741
* Total H IndexRankings
Ranking Based On Selection: 21
environmental and molecular toxicology
multi-omics
bioinformatics
ecNGS
mutagenesis
Metrics
H-Index
i10 Index
Citation Counts
9
9
494
* Total H IndexRankings
Ranking Based On Selection: 22
water resources management
climate downscaling
hydro-climatology
climate change and adaptation
hydrological modelling
Metrics
H-Index
i10 Index
Citation Counts
9
8
623
* Total H IndexRankings
Ranking Based On Selection: 23
Water (in)security
gender
health
climate change
gender-based violence
Metrics
H-Index
i10 Index
Citation Counts
8
7
137
* Total H IndexRankings
Ranking Based On Selection: 24
Integrated water quality modelling
Sediment transport modelling
Limnology
Identifiability analysis
Climate change
Metrics
H-Index
i10 Index
Citation Counts
7
7
136
* Total H IndexRankings
Ranking Based On Selection: 25
Atmospheric Physics
Atmospheric Chemistry
Ozone
Stratosphere
Climate Change
Metrics
H-Index
i10 Index
Citation Counts
6
3
147
Paul Jones
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
72
171
15,953
Environmental Toxicology
Environmental Chemistry
Risk Assessment
Markus Hecker
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
64
180
12,218
Environmental Pollution
Environmental Risk Assessment
Fish Biology
Endocrine Disruption
Mechanisms of Toxic Action
Bram Noble
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
46
107
6,589
Environmental Assessment
Som Niyogi
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
36
81
4,294
Environmental Toxicology
Steven L Van Wilgenburg
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
36
70
4,037
conservation biology
ornithology
ecology
Jafar Soltan
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
34
56
3,927
Environmental catalysis
Jude A Okolie
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
32
55
4,443
Waste Biomass to green fuels
Thermochemical and Biochemical conversion of Waste biomass to Liquid
Dena Mcmartin
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
28
56
2,954
watershed management
water quality
oilsands tailings waters
climate extremes
Phani Adapa
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
28
39
2,554
Postharvest processing
compation and compression of agricultural straw
IR Spectroscopy
Corinne J Schuster Wallace
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
25
49
3,025
water and human health
James P Robson
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
21
46
1,863
Collective action in environmental governance
commons
migration-environment-development nexus
land system science
Mj Barrett
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
19
22
1,157
intuitive interspecies communication
multispecies
more-than-human methods
transformative learning
Geoff Koehler
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
18
24
895
Stable Isotope Geochemistry
Xiaowen Ji
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
17
29
915
Environmental chemistry
Human Health
Mohamed Ezzat Elshamy
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
16
23
1,349
Hydrology
water resources
climate change
Simon J Lambert
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
16
22
1,318
Indigenous environmental management
disaster risk reduction
emergency management
Indigenous
Sarah E Crawford
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
15
21
996
Environmental Toxicology
Sediment
Bioavailability
Risk Assessment
Ecotoxicology
Vladimir Kricsfalusy|Krichfalushii V.V., Krichfalushij V.V., Kričfaluši V.
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
13
15
581
Conservation Biology
Environmental Education
Plant Ecology
Vegetation Science
Anson Main
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
12
13
1,656
pesticides
agroecosystems
aquatic ecology
wild pollinators
ecotoxicology
Li Xu
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
11
11
741
human-water interaction
resilience in human-nature systems
climate adaptation
Alper James Alcaraz
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
9
9
494
environmental and molecular toxicology
multi-omics
bioinformatics
ecNGS
mutagenesis
Elvis Z Asong
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
9
8
623
water resources management
climate downscaling
hydro-climatology
climate change and adaptation
hydrological modelling
Gervin Ane Apatinga
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
8
7
137
Water (in)security
gender
health
climate change
gender-based violence
Eric Akomeah
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
7
7
136
Integrated water quality modelling
Sediment transport modelling
Limnology
Identifiability analysis
Climate change
Kimberlee Dubé
University of Saskatchewan
Saskatoon, Canada
Metrics
H-Index
i10-Index
Citation Counts
6
3
147
Atmospheric Physics
Atmospheric Chemistry
Ozone
Stratosphere
Climate Change