Top 100 Scientists

Top 100 Scientists in Singapore 2025

Top 100 scientists can be ranked globally or specific to the following regions including Africa, Asia, Europe, North America, Latin America, Oceania, Arab League, ASEAN, EECA, and BRICS based on total H-index scores without any breakdown by subject areas. Top 100 rankings in the world, in a continent, or a region include standardized subjects areas of Agriculture & Forestry, Arts, Design and Architecture, Business & Management, Economics & Econometrics, Education, Engineering & Technology, History, Philosophy, Theology, Law/Law and Legal Studies, Medical and Health Sciences, Natural Sciences, Social Sciences, Art and Humanities Rankings and Social Sciences and Humanities Rankings BETA VERSION. Subject field ranking in world, region, country and university is beta version since subject field "others" (873,690 scientists profile whose branch cannot be determined, not yet edited or determined) is excluded, so the ranking will change as the others fields are edited. Please note that. Subjects indicated as “ * others ” will not be included in the ranking by regions and subjects.

* Rankings
Ranking Based On Selection: 1
Yu Liu
Environmental microbiology and biotechnology
MBR
Biological wastewater treatment
Metrics
H-Index
i10 Index
Citation
100
320
38,519
* Rankings
Ranking Based On Selection: 3
Teik Thye Lim
Environmental Engineering
Environmental Science
Chemical Engineering
Nanomaterials
Metrics
H-Index
i10 Index
Citation
83
192
24,431
* Rankings
Ranking Based On Selection: 6
Darren Delai Sun
Environmental Engineering
Membrane Separation
Environmental Nanotechnology
Water and Desalination
Environmental Materials
Metrics
H-Index
i10 Index
Citation
69
173
17,359
* Rankings
Ranking Based On Selection: 7
Stefan Wuertz
wastewater treatment
recreational water quality
public health
environmental microbiology
biofilms
Metrics
H-Index
i10 Index
Citation
67
161
16,092
* Rankings
Ranking Based On Selection: 8
Say Leong Ong
Water and Wastewater Treatment
Water Reuse
Membrane Technology
Green Infrastructure
Metrics
H-Index
i10 Index
Citation
63
148
11,775

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* Rankings
Ranking Based On Selection: 11
Tham Kwok Wai
Indoor Air Quality
building performance
energy
indoor environment
Metrics
H-Index
i10 Index
Citation
53
121
10,814
* Rankings
Ranking Based On Selection: 14
Dong Qing Zhang
Wastewater treatment
constructed wetland
emerging contaminants
denitrification
soluble microbial product
Metrics
H-Index
i10 Index
Citation
46
97
8,781
* Rankings
Ranking Based On Selection: 15
Kunli Goh
Water Purification
Membranes
Carbon Nanotubes
Graphene
Carbon Nanoarchitectures
Metrics
H-Index
i10 Index
Citation
45
78
8,852
* Rankings
Ranking Based On Selection: 16
Piet van Asten
coffee
farming systems
climate change
sustainable agriculture
Metrics
H-Index
i10 Index
Citation
45
120
8,783
* Rankings
Ranking Based On Selection: 17
Xiaosheng Qin
water resources engineering
hydrology
climate change
flood modeling
green urban technology
Metrics
H-Index
i10 Index
Citation
43
105
5,349
* Rankings
Ranking Based On Selection: 20
Hongwei Bai
Environmental Technology
Water Treatment
Environmental Functional Materials
Metrics
H-Index
i10 Index
Citation
39
53
5,098
* Rankings
Ranking Based On Selection: 21
Sanjay Swarup
Environmental biology
microbial ecology
metabolomics
plant-microbe interactions
syst
Metrics
H-Index
i10 Index
Citation
37
81
6,545
* Rankings
Ranking Based On Selection: 22
Janelle R Thompson
Environmental Microbiology
Microbial Ecology
Extremophiles
Astrobiology
Environmental Health
Metrics
H-Index
i10 Index
Citation
36
57
6,190
* Rankings
Ranking Based On Selection: 23
Dale Barker
Numerical Weather Prediction
Data Assimilation
Climate Science
Reanalysis
Metrics
H-Index
i10 Index
Citation
35
56
26,518
* Rankings
Ranking Based On Selection: 24
Le Zhang
Environmental biotechnology
Waste-to-resources
Biomass energy technology
Metrics
H-Index
i10 Index
Citation
34
50
3,284
* Rankings
Ranking Based On Selection: 26
Stefano Galelli
Water Resources Management
Hydroinformatics
Multi-objective Optimisation
Optimal Control
Systems
Metrics
H-Index
i10 Index
Citation
32
60
3,977
* Rankings
Ranking Based On Selection: 28
Sonia Akter
climate change mitigation and adaptation
econmics of natural disasters
microinsurance
environmental valuation
risk and uncer
Metrics
H-Index
i10 Index
Citation
29
45
4,355
* Rankings
Ranking Based On Selection: 29
Xin Li 李鑫
Water treatment
membrane technology
Nano-enhanced membrane
membrane fouling
Environmental functional nanomaterials
Metrics
H-Index
i10 Index
Citation
28
38
5,081
* Rankings
Ranking Based On Selection: 30
Wei Ping Chan 陈伟斌
Waste management
Thermochemcial conversion
Carbon capture
Resource recovery
Metrics
H-Index
i10 Index
Citation
26
41
1,949
* Rankings
Ranking Based On Selection: 34
Sandeep Sahany
Climate Modeling
Tropical Convection
Monsoons
Climate Change Science
Climate Change Impacts
Metrics
H-Index
i10 Index
Citation
22
35
1,281
* Rankings
Ranking Based On Selection: 36
Sungwoo Bae
Multi-omics
Lab-On-a-Smartphone(LOS)
Microplastics
Viablity PCR
Biofilm
Metrics
H-Index
i10 Index
Citation
21
29
1,712
* Rankings
Ranking Based On Selection: 37
Chen Cai 蔡琛
Microbial methane cycling
Biological greenhouse gas transformation
Metrics
H-Index
i10 Index
Citation
21
26
2,308
* Rankings
Ranking Based On Selection: 41
Zhi Yung Tay
Hydrodynamics
Hydroelastic
Fluid-Structure Interaction
Wave Energy
Offshore Structures
Metrics
H-Index
i10 Index
Citation
21
29
1,454
* Rankings
Ranking Based On Selection: 42
Leong Ching
water policy
environmental governance
narratives
irrationalities
blame and credt
Metrics
H-Index
i10 Index
Citation
21
29
1,126
* Rankings
Ranking Based On Selection: 44
Connor Graham
Science_technology_and_society_(STS)
Internet Studies
Climate Change
Metrics
H-Index
i10 Index
Citation
20
30
2,010
* Rankings
Ranking Based On Selection: 47
Florentin Constancias
Microbial ecology
microbiome data science
metagenomics
molecular epidemiology
Metrics
H-Index
i10 Index
Citation
19
27
1,557
* Rankings
Ranking Based On Selection: 48
Jiefeng Zhang
Environmental chemistry
water and wastewater treatment
nutrient recovery
air pollution
Metrics
H-Index
i10 Index
Citation
19
22
2,034
* Rankings
Ranking Based On Selection: 49
Ting Wang
Environmental Remediation
Multi-functional Materials
Catalytic Oxidations
Metrics
H-Index
i10 Index
Citation
18
20
2,368
* Rankings
Ranking Based On Selection: 50
Orlando Garcia Rodriguez
Environmental electrochemistry
Environmental engineering
electrochemistry
wastewater treatment
Metrics
H-Index
i10 Index
Citation
18
22
1,251
* Rankings
Ranking Based On Selection: 51
Boon Ning Chew
Air quality modelling
Dispersion modelling
Remote sensing
Radiation Safety Analysis
Metrics
H-Index
i10 Index
Citation
18
19
1,353
* Rankings
Ranking Based On Selection: 53
Marcel Ignatius
Microclimate
Climate Change
Urban Climatic Map
Sustainable Design
Buildings Performance
Metrics
H-Index
i10 Index
Citation
15
22
1,008
* Rankings
Ranking Based On Selection: 55
Binu Kundukad
Biofilms
Biophysics
Rheology
Atomic force microscopy
DNA protein interaction
Metrics
H-Index
i10 Index
Citation
14
16
941
* Rankings
Ranking Based On Selection: 63
Fakhrur Rozy Harnas
Geotechnical engineering
Ecological Engineering
Geo-Environmental Engineering
Metrics
H-Index
i10 Index
Citation
10
12
382
Ezequiel Santillan
Environmental engineering
microbial ecology
circular economy
molecular biology
chemical engineering
Metrics
H-Index
i10 Index
Citation
9
9
353
* Rankings
Ranking Based On Selection: 66
Terence Chin
Air pollution
environmental engineering
hazardous waste management
sustainability
Metrics
H-Index
i10 Index
Citation
8
8
920
* Rankings
Ranking Based On Selection: 69
Senthil Kumar Selvaraj
Environmental Simulation
Software/Application Development
Python/C/C++ Programming
3D Visualization
CAD Modelling
Metrics
H-Index
i10 Index
Citation
5
5
53
Arvin Liangdy
Advanced Oxidation Process
Chemical Reaction Engineering
Water Treatment
Chemical Engineering
Environmental Engineering
Metrics
H-Index
i10 Index
Citation
4
3
98
Rankings
Ranking Based On Selection: 1
Yu Liu
Metrics
H-Index
i10 Index
Citation Counts
100
320
38,519
Environmental microbiology and biotechnology
MBR
Biological wastewater treatment
Rankings
Ranking Based On Selection: 2
Shane A Snyder
Metrics
H-Index
i10 Index
Citation Counts
95
278
39,765
Rankings
Ranking Based On Selection: 3
Teik Thye Lim
Metrics
H-Index
i10 Index
Citation Counts
83
192
24,431
Environmental Engineering
Environmental Science
Chemical Engineering
Nanomaterials
Rankings
Ranking Based On Selection: 4
Wilson Tam
Metrics
H-Index
i10 Index
Citation Counts
77
188
27,054
Rankings
Ranking Based On Selection: 5
Wunjern Ng
Metrics
H-Index
i10 Index
Citation Counts
69
189
17,094
Rankings
Ranking Based On Selection: 6
Darren Delai Sun
Metrics
H-Index
i10 Index
Citation Counts
69
173
17,359
Environmental Engineering
Membrane Separation
Environmental Nanotechnology
Water and Desalination
Environmental Materials
Rankings
Ranking Based On Selection: 7
Stefan Wuertz
Metrics
H-Index
i10 Index
Citation Counts
67
161
16,092
wastewater treatment
recreational water quality
public health
environmental microbiology
biofilms
Rankings
Ranking Based On Selection: 8
Say Leong Ong
Metrics
H-Index
i10 Index
Citation Counts
63
148
11,775
Water and Wastewater Treatment
Water Reuse
Membrane Technology
Green Infrastructure
Rankings
Ranking Based On Selection: 9
Yan Zhou
Metrics
H-Index
i10 Index
Citation Counts
58
167
11,614
Rankings
Ranking Based On Selection: 10
Christine A Shoemaker
Metrics
H-Index
i10 Index
Citation Counts
55
137
11,562

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! 

Rankings
Ranking Based On Selection: 11
Tham Kwok Wai
Metrics
H-Index
i10 Index
Citation Counts
53
121
10,814
Indoor Air Quality
building performance
energy
indoor environment
Rankings
Ranking Based On Selection: 12
David Taylor
Metrics
H-Index
i10 Index
Citation Counts
53
118
10,683
Rankings
Ranking Based On Selection: 13
Chandra Sekhar
Metrics
H-Index
i10 Index
Citation Counts
51
111
11,833
Rankings
Ranking Based On Selection: 14
Dong Qing Zhang
Metrics
H-Index
i10 Index
Citation Counts
46
97
8,781
Wastewater treatment
constructed wetland
emerging contaminants
denitrification
soluble microbial product
Rankings
Ranking Based On Selection: 15
Kunli Goh
Metrics
H-Index
i10 Index
Citation Counts
45
78
8,852
Water Purification
Membranes
Carbon Nanotubes
Graphene
Carbon Nanoarchitectures
Rankings
Ranking Based On Selection: 16
Piet van Asten
Metrics
H-Index
i10 Index
Citation Counts
45
120
8,783
coffee
farming systems
climate change
sustainable agriculture
Rankings
Ranking Based On Selection: 17
Xiaosheng Qin
Metrics
H-Index
i10 Index
Citation Counts
43
105
5,349
water resources engineering
hydrology
climate change
flood modeling
green urban technology
Rankings
Ranking Based On Selection: 18
Shie Yui Liong
Metrics
H-Index
i10 Index
Citation Counts
42
85
7,005
Rankings
Ranking Based On Selection: 19
Andrei Veksha
Metrics
H-Index
i10 Index
Citation Counts
39
85
4,958
Rankings
Ranking Based On Selection: 20
Hongwei Bai
Metrics
H-Index
i10 Index
Citation Counts
39
53
5,098
Environmental Technology
Water Treatment
Environmental Functional Materials
Rankings
Ranking Based On Selection: 21
Sanjay Swarup
Metrics
H-Index
i10 Index
Citation Counts
37
81
6,545
Environmental biology
microbial ecology
metabolomics
plant-microbe interactions
syst
Rankings
Ranking Based On Selection: 22
Janelle R Thompson
Metrics
H-Index
i10 Index
Citation Counts
36
57
6,190
Environmental Microbiology
Microbial Ecology
Extremophiles
Astrobiology
Environmental Health
Rankings
Ranking Based On Selection: 23
Dale Barker
Metrics
H-Index
i10 Index
Citation Counts
35
56
26,518
Numerical Weather Prediction
Data Assimilation
Climate Science
Reanalysis
Rankings
Ranking Based On Selection: 24
Le Zhang
Metrics
H-Index
i10 Index
Citation Counts
34
50
3,284
Environmental biotechnology
Waste-to-resources
Biomass energy technology
Rankings
Ranking Based On Selection: 25
Aurel Moise
Metrics
H-Index
i10 Index
Citation Counts
33
61
3,863
Rankings
Ranking Based On Selection: 26
Stefano Galelli
Metrics
H-Index
i10 Index
Citation Counts
32
60
3,977
Water Resources Management
Hydroinformatics
Multi-objective Optimisation
Optimal Control
Systems
Rankings
Ranking Based On Selection: 27
Brian G Mcadoo
Metrics
H-Index
i10 Index
Citation Counts
32
45
4,252
Rankings
Ranking Based On Selection: 28
Sonia Akter
Metrics
H-Index
i10 Index
Citation Counts
29
45
4,355
climate change mitigation and adaptation
econmics of natural disasters
microinsurance
environmental valuation
risk and uncer
Rankings
Ranking Based On Selection: 29
Xin Li 李鑫
Metrics
H-Index
i10 Index
Citation Counts
28
38
5,081
Water treatment
membrane technology
Nano-enhanced membrane
membrane fouling
Environmental functional nanomaterials
Rankings
Ranking Based On Selection: 30
Wei Ping Chan 陈伟斌
Metrics
H-Index
i10 Index
Citation Counts
26
41
1,949
Waste management
Thermochemcial conversion
Carbon capture
Resource recovery
Rankings
Ranking Based On Selection: 31
Jun Gu
Metrics
H-Index
i10 Index
Citation Counts
25
28
2,385
Rankings
Ranking Based On Selection: 32
Srivatsan V Raghavan
Metrics
H-Index
i10 Index
Citation Counts
25
30
1,472
Rankings
Ranking Based On Selection: 33
Chinagarn Kunacheva
Metrics
H-Index
i10 Index
Citation Counts
23
32
1,941
Rankings
Ranking Based On Selection: 34
Sandeep Sahany
Metrics
H-Index
i10 Index
Citation Counts
22
35
1,281
Climate Modeling
Tropical Convection
Monsoons
Climate Change Science
Climate Change Impacts
Rankings
Ranking Based On Selection: 35
Moo James
Metrics
H-Index
i10 Index
Citation Counts
22
32
1,996
Rankings
Ranking Based On Selection: 36
Sungwoo Bae
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,712
Multi-omics
Lab-On-a-Smartphone(LOS)
Microplastics
Viablity PCR
Biofilm
Rankings
Ranking Based On Selection: 37
Chen Cai 蔡琛
Metrics
H-Index
i10 Index
Citation Counts
21
26
2,308
Microbial methane cycling
Biological greenhouse gas transformation
Rankings
Ranking Based On Selection: 38
Muhammad Zafir Bin Mohamad Nasir
Metrics
H-Index
i10 Index
Citation Counts
21
26
1,223
Electrochemistry
Electrochemical (bio)sensors
Environmental Sciences
Rankings
Ranking Based On Selection: 39
Le Nghiem
Metrics
H-Index
i10 Index
Citation Counts
21
21
1,433
Rankings
Ranking Based On Selection: 40
Bijayalaxmi Mohanty
Metrics
H-Index
i10 Index
Citation Counts
21
33
1,765
Rankings
Ranking Based On Selection: 41
Zhi Yung Tay
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,454
Hydrodynamics
Hydroelastic
Fluid-Structure Interaction
Wave Energy
Offshore Structures
Rankings
Ranking Based On Selection: 42
Leong Ching
Metrics
H-Index
i10 Index
Citation Counts
21
29
1,126
water policy
environmental governance
narratives
irrationalities
blame and credt
Rankings
Ranking Based On Selection: 44
Connor Graham
Metrics
H-Index
i10 Index
Citation Counts
20
30
2,010
Science_technology_and_society_(STS)
Internet Studies
Climate Change
Rankings
Ranking Based On Selection: 45
Qiang Hu
Metrics
H-Index
i10 Index
Citation Counts
19
22
2,098
Rankings
Ranking Based On Selection: 46
Chen Zhihao
Metrics
H-Index
i10 Index
Citation Counts
19
28
1,248
Rankings
Ranking Based On Selection: 47
Florentin Constancias
Metrics
H-Index
i10 Index
Citation Counts
19
27
1,557
Microbial ecology
microbiome data science
metagenomics
molecular epidemiology
Rankings
Ranking Based On Selection: 48
Jiefeng Zhang
Metrics
H-Index
i10 Index
Citation Counts
19
22
2,034
Environmental chemistry
water and wastewater treatment
nutrient recovery
air pollution
Rankings
Ranking Based On Selection: 49
Ting Wang
Metrics
H-Index
i10 Index
Citation Counts
18
20
2,368
Environmental Remediation
Multi-functional Materials
Catalytic Oxidations
Rankings
Ranking Based On Selection: 50
Orlando Garcia Rodriguez
Metrics
H-Index
i10 Index
Citation Counts
18
22
1,251
Environmental electrochemistry
Environmental engineering
electrochemistry
wastewater treatment
Rankings
Ranking Based On Selection: 51
Boon Ning Chew
Metrics
H-Index
i10 Index
Citation Counts
18
19
1,353
Air quality modelling
Dispersion modelling
Remote sensing
Radiation Safety Analysis
Rankings
Ranking Based On Selection: 53
Marcel Ignatius
Metrics
H-Index
i10 Index
Citation Counts
15
22
1,008
Microclimate
Climate Change
Urban Climatic Map
Sustainable Design
Buildings Performance
Rankings
Ranking Based On Selection: 54
Ebrahim Akhondi
Metrics
H-Index
i10 Index
Citation Counts
15
17
1,091
Rankings
Ranking Based On Selection: 55
Binu Kundukad
Metrics
H-Index
i10 Index
Citation Counts
14
16
941
Biofilms
Biophysics
Rheology
Atomic force microscopy
DNA protein interaction
Rankings
Ranking Based On Selection: 56
Shipra Jain
Metrics
H-Index
i10 Index
Citation Counts
14
15
538
Rankings
Ranking Based On Selection: 57
Boon Chong Peter Heng
Metrics
H-Index
i10 Index
Citation Counts
14
16
835
Rankings
Ranking Based On Selection: 58
Bcp Heng
Metrics
H-Index
i10 Index
Citation Counts
14
16
834
Numerical weather prediction
tropical meteorology
soil erosion
Rankings
Ranking Based On Selection: 59
Olivia Jensen
Metrics
H-Index
i10 Index
Citation Counts
13
15
972
Rankings
Ranking Based On Selection: 60
Amir Hooshang Taheri
Metrics
H-Index
i10 Index
Citation Counts
13
13
1,308
Water treatment
Membrane Science
Water Desalination and Treatment
Rankings
Ranking Based On Selection: 61
Dong Xia
Metrics
H-Index
i10 Index
Citation Counts
11
11
338
Enviromental engineering
solid waste recycling
marine chemistry
Rankings
Ranking Based On Selection: 62
Anna Lagerström
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,621
Rankings
Ranking Based On Selection: 63
Fakhrur Rozy Harnas
Metrics
H-Index
i10 Index
Citation Counts
10
12
382
Geotechnical engineering
Ecological Engineering
Geo-Environmental Engineering
Rankings
Ranking Based On Selection: 64
Ezequiel Santillan
Metrics
H-Index
i10 Index
Citation Counts
9
9
353
Environmental engineering
microbial ecology
circular economy
molecular biology
chemical engineering
Rankings
Ranking Based On Selection: 65
Qin Junde
Metrics
H-Index
i10 Index
Citation Counts
9
9
347
Rankings
Ranking Based On Selection: 66
Terence Chin
Metrics
H-Index
i10 Index
Citation Counts
8
8
920
Air pollution
environmental engineering
hazardous waste management
sustainability
Rankings
Ranking Based On Selection: 67
Hieu T. Kieu
Metrics
H-Index
i10 Index
Citation Counts
8
7
212
Rankings
Ranking Based On Selection: 68
Remondah R. Ramzy
Metrics
H-Index
i10 Index
Citation Counts
6
6
205
Rankings
Ranking Based On Selection: 69
Senthil Kumar Selvaraj
Metrics
H-Index
i10 Index
Citation Counts
5
5
53
Environmental Simulation
Software/Application Development
Python/C/C++ Programming
3D Visualization
CAD Modelling
Rankings
Ranking Based On Selection: 70
Arvin Liangdy
Metrics
H-Index
i10 Index
Citation Counts
4
3
98
Advanced Oxidation Process
Chemical Reaction Engineering
Water Treatment
Chemical Engineering
Environmental Engineering
Rankings
Ranking Based On Selection: 71
Rochelle Silva|Mahamalage Rochelle Udani Silva
Metrics
H-Index
i10 Index
Citation Counts
3
3
88
Environmental Engineering
Electrochemistry
Water Treatment
Chemical Engineering
Rankings
Ranking Based On Selection: 72
Ramanujam Srinivasan Vethathirri
Metrics
H-Index
i10 Index
Citation Counts
3
1
81
microbial biotechnology
food security
resource recovery
environmental engineering
Rankings
Ranking Based On Selection: 73
Alicia Tang
Metrics
H-Index
i10 Index
Citation Counts
3
1
54