University, Subject, Country, Region, World
IHE Delft Institute for Water Education 111 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 Feb 01, 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
Milieutechnology
Metrics
H-Index
i10 Index
Citation Counts
93
524
37,690
* Total H IndexRankings
Ranking Based On Selection: 2
Climate change impacts on coasts
Coastal risk assessment
coastal zone management
numerical modelling of coasts
Metrics
H-Index
i10 Index
Citation Counts
66
171
25,424
* Total H IndexRankings
Ranking Based On Selection: 3
Hydrology
meteorology
climate change
adaptation
Metrics
H-Index
i10 Index
Citation Counts
66
125
23,620
* Total H IndexRankings
Ranking Based On Selection: 4
Coastal engineering
coastal morphology
numerical modeling
Metrics
H-Index
i10 Index
Citation Counts
62
170
18,514
* Total H IndexRankings
Ranking Based On Selection: 5
water management
Metrics
H-Index
i10 Index
Citation Counts
56
171
10,397
* Total H IndexRankings
Ranking Based On Selection: 6
Sea Water Desalination
Groundwater Treatment
Water Quality
Biological Stability
Metrics
H-Index
i10 Index
Citation Counts
52
135
8,536
* Total H IndexRankings
Ranking Based On Selection: 7
Wastewater Treatment
Sanitation
Modelling
FSM
Metrics
H-Index
i10 Index
Citation Counts
49
114
12,306
* Total H IndexRankings
Ranking Based On Selection: 8
hydrology
ecohydrology
biogeochemistry
environmental flows
integrated water resources management
Metrics
H-Index
i10 Index
Citation Counts
46
100
15,461
* Total H IndexRankings
Ranking Based On Selection: 9
Hydrology
Water Resources Management
Metrics
H-Index
i10 Index
Citation Counts
44
112
6,817
* Total H IndexRankings
Ranking Based On Selection: 10
agricultural water management
irrigation
Metrics
H-Index
i10 Index
Citation Counts
44
100
12,297
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* Total H IndexRankings
Ranking Based On Selection: 11
Wastewater treatment
Faecal Sludge Management
Humanitarian WASH
Metrics
H-Index
i10 Index
Citation Counts
41
68
5,495
* Total H IndexRankings
Ranking Based On Selection: 12
Wetland ecology and management
aquaculture
ecosystem services
nutrient cycling and production modelling
Metrics
H-Index
i10 Index
Citation Counts
37
74
5,117
* Total H IndexRankings
Ranking Based On Selection: 13
Hydrological and River Modelling
Climate Change
Floods and Droughts
Snow and Glaciers
Uncertainty
Metrics
H-Index
i10 Index
Citation Counts
36
57
5,905
* Total H IndexRankings
Ranking Based On Selection: 14
hydraulics
gravity currents
fluvial hydraulics
hydropower
hydraulic structures
Metrics
H-Index
i10 Index
Citation Counts
36
77
3,915
* Total H IndexRankings
Ranking Based On Selection: 15
Wastewater
Environmental Biotechnology
Resource Recovery
Metrics
H-Index
i10 Index
Citation Counts
34
57
4,238
* Total H IndexRankings
Ranking Based On Selection: 16
Water
Metrics
H-Index
i10 Index
Citation Counts
34
74
4,833
* Total H IndexRankings
Ranking Based On Selection: 17
Metrics
H-Index
i10 Index
Citation Counts
33
54
3,798
* Total H IndexRankings
Ranking Based On Selection: 18
Hydroinformatics
Computational Hydraulics
Flood mapping
Metrics
H-Index
i10 Index
Citation Counts
33
59
3,678
* Total H IndexRankings
Ranking Based On Selection: 19
water resources planning and management
drought risk management
hydrology and water resources
water systems modeling
Metrics
H-Index
i10 Index
Citation Counts
32
58
3,862
* Total H IndexRankings
Ranking Based On Selection: 20
hydroinformatics
hydrology
water resources
groundwater
decision support systems
Metrics
H-Index
i10 Index
Citation Counts
31
51
3,240
* Total H IndexRankings
Ranking Based On Selection: 21
Estuarine dynamics
coastal morphodynamics
morphodynamic modeling
Metrics
H-Index
i10 Index
Citation Counts
30
55
3,462
* Total H IndexRankings
Ranking Based On Selection: 22
conservation biology
stream ecology
bioindication
spatial planning
Metrics
H-Index
i10 Index
Citation Counts
30
47
4,027
* Total H IndexRankings
Ranking Based On Selection: 23
Air-sea interaction
wave climate
climate change
Metrics
H-Index
i10 Index
Citation Counts
29
48
3,557
* Total H IndexRankings
Ranking Based On Selection: 24
Hydrology
Water Resources
Water Accounting
Water Productivity
Environmental Flows
Metrics
H-Index
i10 Index
Citation Counts
29
49
2,600
* Total H IndexRankings
Ranking Based On Selection: 25
River and estuary morphodynamics
river meandering and braiding
bars
interaction vegetation-morphodynamics
Metrics
H-Index
i10 Index
Citation Counts
28
48
2,780
Piet Lens
Metrics
H-Index
i10-Index
Citation Counts
93
524
37,690
Roshanka Ranasinghe
Metrics
H-Index
i10-Index
Citation Counts
66
171
25,424
Climate change impacts on coasts
Coastal risk assessment
coastal zone management
numerical modelling of coasts
Eddy Moors
Metrics
H-Index
i10-Index
Citation Counts
66
125
23,620
Hydrology
meteorology
climate change
adaptation
Dano Ja Roelvink
Metrics
H-Index
i10-Index
Citation Counts
62
170
18,514
Coastal engineering
coastal morphology
numerical modeling
Pieter Van Der Zaag
Metrics
H-Index
i10-Index
Citation Counts
56
171
10,397
Maria Kennedy
Metrics
H-Index
i10-Index
Citation Counts
52
135
8,536
Sea Water Desalination
Groundwater Treatment
Water Quality
Biological Stability
Damir Brdjanovic
Metrics
H-Index
i10-Index
Citation Counts
49
114
12,306
Wastewater Treatment
Sanitation
Modelling
FSM
Michael E Mcclain
Metrics
H-Index
i10-Index
Citation Counts
46
100
15,461
hydrology
ecohydrology
biogeochemistry
environmental flows
integrated water resources management
Graham Jewitt
Metrics
H-Index
i10-Index
Citation Counts
44
112
6,817
Hydrology
Water Resources Management
Charlotte De Fraiture
Metrics
H-Index
i10-Index
Citation Counts
44
100
12,297
agricultural water management
irrigation
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Christine Maria Tineke Hooijmans
Metrics
H-Index
i10-Index
Citation Counts
41
68
5,495
Wastewater treatment
Faecal Sludge Management
Humanitarian WASH
Anne A Van Dam
Metrics
H-Index
i10-Index
Citation Counts
37
74
5,117
Wetland ecology and management
aquaculture
ecosystem services
nutrient cycling and production modelling
Shreedhar Maskey
Metrics
H-Index
i10-Index
Citation Counts
36
57
5,905
Hydrological and River Modelling
Climate Change
Floods and Droughts
Snow and Glaciers
Uncertainty
Mário J Franca
Metrics
H-Index
i10-Index
Citation Counts
36
77
3,915
hydraulics
gravity currents
fluvial hydraulics
hydropower
hydraulic structures
Carlos M Lopez Vazquez
Metrics
H-Index
i10-Index
Citation Counts
34
57
4,238
Wastewater
Environmental Biotechnology
Resource Recovery
Saroj Sharma
Metrics
H-Index
i10-Index
Citation Counts
34
74
4,833
Capucine Dupont
Metrics
H-Index
i10-Index
Citation Counts
33
54
3,798
Ioana Popescu
Metrics
H-Index
i10-Index
Citation Counts
33
59
3,678
Hydroinformatics
Computational Hydraulics
Flood mapping
Ilyas Masih
Metrics
H-Index
i10-Index
Citation Counts
32
58
3,862
water resources planning and management
drought risk management
hydrology and water resources
water systems modeling
Andreja Jonoski
Metrics
H-Index
i10-Index
Citation Counts
31
51
3,240
hydroinformatics
hydrology
water resources
groundwater
decision support systems
Mick Van Der Wegen
Metrics
H-Index
i10-Index
Citation Counts
30
55
3,462
Estuarine dynamics
coastal morphodynamics
morphodynamic modeling
John P Simaika
Metrics
H-Index
i10-Index
Citation Counts
30
47
4,027
conservation biology
stream ecology
bioindication
spatial planning
Alvaro Semedo
Metrics
H-Index
i10-Index
Citation Counts
29
48
3,557
Air-sea interaction
wave climate
climate change
Marloes Mul
Metrics
H-Index
i10-Index
Citation Counts
29
49
2,600
Hydrology
Water Resources
Water Accounting
Water Productivity
Environmental Flows
Alessandra Crosato
Metrics
H-Index
i10-Index
Citation Counts
28
48
2,780
River and estuary morphodynamics
river meandering and braiding
bars
interaction vegetation-morphodynamics