The Top 100 scientists are ranked based on total H-index scores at the global, regional, national, and institutional levels. Rankings cover 10 regions, 13 main fields, and 221 subfields. Subject field rankings (at world, region, country, and university levels) are currently in Beta version and updated in near real-time.
Note: Researchers classified as "others" (currently 1,123,374 profiles whose fields are undetermined or unedited) are excluded from subject and regional rankings. These rankings will dynamically evolve as the “others” profiles are reviewed and properly categorized.
* Total H Index Rankings
Rankings
Ranking Based On Selection:
1
Engineering & Technology / Metallurgical & Materials Engineering
Materials Science | Electrochemistry | Batteries | Energy Storage | Nanotechnolog
Materials Science | Electrochemistry | Batteries | Energy Storage | Nanotechnolog
H-Index Metrics
-
H-Index167
-
i10 Index661
-
Citation Counts94,186
* Total H Index Rankings
Rankings
Ranking Based On Selection:
2
Natural Sciences / Geography
Geographic Information Systems | Geographic Information Science | Geoinformatics | Spatial Data Minin
Geographic Information Systems | Geographic Information Science | Geoinformatics | Spatial Data Minin
H-Index Metrics
-
H-Index150
-
i10 Index746
-
Citation Counts86,525
* Total H Index Rankings
Rankings
Ranking Based On Selection:
3
* Total H Index Rankings
Rankings
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Advanced biological waste treatment processes | membrane technologies | alternative water resources | resource recovery | environme
Advanced biological waste treatment processes | membrane technologies | alternative water resources | resource recovery | environme
H-Index Metrics
-
H-Index128
-
i10 Index705
-
Citation Counts67,082
* Total H Index Rankings
Rankings
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Water-Food-Energy Nexus | Membrane separation | Anaerobic digestion | Resource Recovery from Wastewate
Water-Food-Energy Nexus | Membrane separation | Anaerobic digestion | Resource Recovery from Wastewate
H-Index Metrics
-
H-Index119
-
i10 Index448
-
Citation Counts47,392
* Total H Index Rankings
Rankings
Ranking Based On Selection:
6
Engineering & Technology / Computer Science
Data Analytics | Engineering Optimization | Evolutionary Computation | Smart Citie
Data Analytics | Engineering Optimization | Evolutionary Computation | Smart Citie
H-Index Metrics
-
H-Index114
-
i10 Index479
-
Citation Counts70,226
* Total H Index Rankings
Rankings
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Techno-Economic Analysis | Life-Cycle Cost | Cost-Benefit Analysis | Circular Economy | Energy & Fuel
Techno-Economic Analysis | Life-Cycle Cost | Cost-Benefit Analysis | Circular Economy | Energy & Fuel
H-Index Metrics
-
H-Index111
-
i10 Index366
-
Citation Counts46,877
* Total H Index Rankings
Rankings
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
Green Technology | Resource & Energy Recovery | Water-Waste-Energy Nexus | Membrane Technology | Solid Waste Managemen
Green Technology | Resource & Energy Recovery | Water-Waste-Energy Nexus | Membrane Technology | Solid Waste Managemen
H-Index Metrics
-
H-Index109
-
i10 Index455
-
Citation Counts50,817
* Total H Index Rankings
Rankings
Ranking Based On Selection:
9
* Total H Index Rankings
Rankings
Ranking Based On Selection:
10
Engineering & Technology / Energy Engineering
Energy and Fuels | Waste Management | Circular Economy | Sustainable Energ
Energy and Fuels | Waste Management | Circular Economy | Sustainable Energ
H-Index Metrics
-
H-Index106
-
i10 Index283
-
Citation Counts39,284
* Total H Index Rankings
Rankings
Ranking Based On Selection:
11
* Total H Index Rankings
Rankings
Ranking Based On Selection:
12
Engineering & Technology / Environmental Science & Engineering
Environmental Technology | Greenhouse Gas Emissions | Wastewater Treatment | Microplastic
Environmental Technology | Greenhouse Gas Emissions | Wastewater Treatment | Microplastic
H-Index Metrics
-
H-Index105
-
i10 Index502
-
Citation Counts38,153
* Total H Index Rankings
Rankings
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
Ranking Based On Selection:
14
* Total H Index Rankings
Rankings
Ranking Based On Selection:
15
* Total H Index Rankings
Rankings
Ranking Based On Selection:
16
Engineering & Technology / Computer Science
Computational intelligence | machine learning | fuzzy neural networks (FNN) | cognitive neuro-engineering | brain-computer interfac
Computational intelligence | machine learning | fuzzy neural networks (FNN) | cognitive neuro-engineering | brain-computer interfac
H-Index Metrics
-
H-Index100
-
i10 Index489
-
Citation Counts43,884
* Total H Index Rankings
Rankings
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
Ranking Based On Selection:
18
* Total H Index Rankings
Rankings
Ranking Based On Selection:
19
Education / Physical Education and Sport Science
Sport Science | Sport Medicine | Clinimetrics | Research Method
Sport Science | Sport Medicine | Clinimetrics | Research Method
H-Index Metrics
-
H-Index89
-
i10 Index190
-
Citation Counts34,617
* Total H Index Rankings
Rankings
Ranking Based On Selection:
20
Engineering & Technology / Environmental Science & Engineering
Water treatment | Wastewater treatment | membrane technology | filtration | desalinatio
Water treatment | Wastewater treatment | membrane technology | filtration | desalinatio
H-Index Metrics
-
H-Index89
-
i10 Index398
-
Citation Counts28,957
* Total H Index Rankings
Rankings
Ranking Based On Selection:
21
Medical and Health Sciences / Epidemiology and Public Health
public health | primary health care | complementary health care | chronic disease | agein
public health | primary health care | complementary health care | chronic disease | agein
H-Index Metrics
-
H-Index89
-
i10 Index511
-
Citation Counts34,370
* Total H Index Rankings
Rankings
Ranking Based On Selection:
22
Others
Computational Intelligence | Fuzzy Transfer Learning | Concept drift | Decision support system
Computational Intelligence | Fuzzy Transfer Learning | Concept drift | Decision support system
H-Index Metrics
-
H-Index88
-
i10 Index381
-
Citation Counts30,931
* Total H Index Rankings
Rankings
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Plant Physiology | Plant Ecophysiology | Ecohydrology | Remote Sensing | Micrometeorolog
Plant Physiology | Plant Ecophysiology | Ecohydrology | Remote Sensing | Micrometeorolog
H-Index Metrics
-
H-Index87
-
i10 Index247
-
Citation Counts29,834
* Total H Index Rankings
Rankings
Ranking Based On Selection:
24
Engineering & Technology / Computer Science
Network Science | Security and Privacy | Big Data | Mathematical A
Network Science | Security and Privacy | Big Data | Mathematical A
H-Index Metrics
-
H-Index86
-
i10 Index442
-
Citation Counts29,802
* Total H Index Rankings
Rankings
Ranking Based On Selection:
25

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