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 02, 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
climate
climate policy
climate solutions
oceanography
meteorology
Metrics
H-Index
i10 Index
Citation Counts
80
199
42,956
* Total H IndexRankings
Ranking Based On Selection: 2
Arctic
cold-regions hydrology
climate change
hydro-ecology
hydro-climatology
Metrics
H-Index
i10 Index
Citation Counts
74
205
28,206
* Total H IndexRankings
Ranking Based On Selection: 3
ethnobotany
Metrics
H-Index
i10 Index
Citation Counts
67
173
21,062
* Total H IndexRankings
Ranking Based On Selection: 4
Climate
Metrics
H-Index
i10 Index
Citation Counts
53
94
48,349
* Total H IndexRankings
Ranking Based On Selection: 5
Isotope hydrology
geochemistry
oil sands environmental sciences
Metrics
H-Index
i10 Index
Citation Counts
51
98
9,679
* Total H IndexRankings
Ranking Based On Selection: 6
climate change adaptation
human geography
emission trading
business sustainability
Metrics
H-Index
i10 Index
Citation Counts
42
79
6,094
* Total H IndexRankings
Ranking Based On Selection: 7
Aerosols
climate
aerosol-cloud interactions
Arctic
air pollution
Metrics
H-Index
i10 Index
Citation Counts
40
70
6,845
* Total H IndexRankings
Ranking Based On Selection: 8
Climate Change
Global Public Goods
Metrics
H-Index
i10 Index
Citation Counts
39
61
32,482
* Total H IndexRankings
Ranking Based On Selection: 9
restoration ecology
ecological restoration
philosophy of technology
environmental ethics
parks and protected areas
Metrics
H-Index
i10 Index
Citation Counts
39
64
11,111
* Total H IndexRankings
Ranking Based On Selection: 10
climate
climate science
agriculture
Metrics
H-Index
i10 Index
Citation Counts
37
76
9,022
* Total H IndexRankings
Ranking Based On Selection: 11
Water resources
hydrological modelling
Urban water management
data-driven modelling
Hydroinformatics
Metrics
H-Index
i10 Index
Citation Counts
34
68
4,988
* Total H IndexRankings
Ranking Based On Selection: 12
climate change
energy
housing
sustainable cities
transport
Metrics
H-Index
i10 Index
Citation Counts
33
60
4,505
* Total H IndexRankings
Ranking Based On Selection: 13
hydrology
Metrics
H-Index
i10 Index
Citation Counts
32
62
3,609
* Total H IndexRankings
Ranking Based On Selection: 14
Climate change adaptation
Metrics
H-Index
i10 Index
Citation Counts
30
57
6,908
* Total H IndexRankings
Ranking Based On Selection: 15
Sustainability
circular economy
green infrastructure
Metrics
H-Index
i10 Index
Citation Counts
29
50
3,223
* Total H IndexRankings
Ranking Based On Selection: 16
Extreme event attribution
climate change emergence
Metrics
H-Index
i10 Index
Citation Counts
27
51
2,913
* Total H IndexRankings
Ranking Based On Selection: 17
Sustainability
Business and Society
Alleviation of Poverty
Metrics
H-Index
i10 Index
Citation Counts
27
41
9,487
* Total H IndexRankings
Ranking Based On Selection: 18
Hydrology
Statistical Downscaling
Climate
Uncertainty
Metrics
H-Index
i10 Index
Citation Counts
26
36
2,408
* Total H IndexRankings
Ranking Based On Selection: 19
Climate change
hydrology
extremes
Metrics
H-Index
i10 Index
Citation Counts
25
33
4,677
* Total H IndexRankings
Ranking Based On Selection: 20
water governance
social innovation
resilience
transformation
complex systems change
Metrics
H-Index
i10 Index
Citation Counts
25
39
5,783
* Total H IndexRankings
Ranking Based On Selection: 21
Ecology
conservation science
biodiversity
Metrics
H-Index
i10 Index
Citation Counts
25
46
3,155
* Total H IndexRankings
Ranking Based On Selection: 22
Water & Environmental Engineering
Sustainability
Energy
Safety
Project Management
Metrics
H-Index
i10 Index
Citation Counts
24
37
1,898
* Total H IndexRankings
Ranking Based On Selection: 23
climate change impacts
Water resources
hydroclimatology
extremes
machine learning
Metrics
H-Index
i10 Index
Citation Counts
23
36
1,474
* Total H IndexRankings
Ranking Based On Selection: 24
science communication
public engagement with science
climate change
Metrics
H-Index
i10 Index
Citation Counts
20
25
1,728
* Total H IndexRankings
Ranking Based On Selection: 25
Metrics
H-Index
i10 Index
Citation Counts
18
24
1,425
Andrew Weaver
Metrics
H-Index
i10-Index
Citation Counts
80
199
42,956
climate
climate policy
climate solutions
oceanography
meteorology
Terry Prowse
Metrics
H-Index
i10-Index
Citation Counts
74
205
28,206
Arctic
cold-regions hydrology
climate change
hydro-ecology
hydro-climatology
Nancy Turner
Metrics
H-Index
i10-Index
Citation Counts
67
173
21,062
Michael Eby
Metrics
H-Index
i10-Index
Citation Counts
53
94
48,349
John J Gibson
Metrics
H-Index
i10-Index
Citation Counts
51
98
9,679
Isotope hydrology
geochemistry
oil sands environmental sciences
Alex Y Lo
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
42
79
6,094
climate change adaptation
human geography
emission trading
business sustainability
Knut Von Salzen
Metrics
H-Index
i10-Index
Citation Counts
40
70
6,845
Aerosols
climate
aerosol-cloud interactions
Arctic
air pollution
Dave Frame|David Frame, David J Frame
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
39
61
32,482
Climate Change
Global Public Goods
Eric Higgs
Metrics
H-Index
i10-Index
Citation Counts
39
64
11,111
restoration ecology
ecological restoration
philosophy of technology
environmental ethics
parks and protected areas
James Salinger
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
37
76
9,022
climate
climate science
agriculture
Nitin Muttil
Victoria University
Melbourne, Australia
Metrics
H-Index
i10-Index
Citation Counts
34
68
4,988
Water resources
hydrological modelling
Urban water management
data-driven modelling
Hydroinformatics
Ralph Chapman
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
33
60
4,505
climate change
energy
housing
sustainable cities
transport
Daniel Peters
Metrics
H-Index
i10-Index
Citation Counts
32
62
3,609
Judy Lawrence
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
30
57
6,908
Climate change adaptation
Anne Ng
Victoria University
Melbourne, Australia
Metrics
H-Index
i10-Index
Citation Counts
29
50
3,223
Sustainability
circular economy
green infrastructure
Luke J Harrington
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
27
51
2,913
Extreme event attribution
climate change emergence
Ana Maria Peredo
Metrics
H-Index
i10-Index
Citation Counts
27
41
9,487
Sustainability
Business and Society
Alleviation of Poverty
Arelia T Werner
Metrics
H-Index
i10-Index
Citation Counts
26
36
2,408
Hydrology
Statistical Downscaling
Climate
Uncertainty
Qiaohong Sun
Metrics
H-Index
i10-Index
Citation Counts
25
33
4,677
Climate change
hydrology
extremes
Michele Lee Moore
Metrics
H-Index
i10-Index
Citation Counts
25
39
5,783
water governance
social innovation
resilience
transformation
complex systems change
Brian Starzomski
Metrics
H-Index
i10-Index
Citation Counts
25
46
3,155
Ecology
conservation science
biodiversity
Augustine Osamor Ifelebuegu
Victoria University Kampala
Kampala, Uganda
Metrics
H-Index
i10-Index
Citation Counts
24
37
1,898
Water & Environmental Engineering
Sustainability
Energy
Safety
Project Management
Rajesh R Shrestha|Rajesh Raj Shrestha
Metrics
H-Index
i10-Index
Citation Counts
23
36
1,474
climate change impacts
Water resources
hydroclimatology
extremes
machine learning
Rhian Salmon
Victoria University of Wellington
Wellington, New Zealand
Metrics
H-Index
i10-Index
Citation Counts
20
25
1,728
science communication
public engagement with science
climate change
Karena Kara Shaw
Metrics
H-Index
i10-Index
Citation Counts
18
24
1,425