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.
water treatment
disinfection
oxidation
Metrics
H-Index
i10 Index
Citation
82
228
25,229
Air Quality
emissions
fires
biogenic emissions
biological particles
Metrics
H-Index
i10 Index
Citation
77
145
26,576
* Rankings
Ranking Based
On Selection: 3
Water quality
Mass Spectrometry
time-of-flight
pharmaceuticals
hydraulic fracturing
Metrics
H-Index
i10 Index
Citation
63
118
12,251
* Rankings
Ranking Based
On Selection: 4
Water quality and treatment - water reuse
Metrics
H-Index
i10 Index
Citation
57
138
11,571
* Rankings
Ranking Based
On Selection: 5
Soot
Combustion
Black carbon
Climate change
Greenhouse gases
Metrics
H-Index
i10 Index
Citation
57
114
11,110
* Rankings
Ranking Based
On Selection: 6
urban and indoor air quality
health effects
exposures to air pollutants
air pollution control measures
ultraviolet germicida
Metrics
H-Index
i10 Index
Citation
49
101
10,001
* Rankings
Ranking Based
On Selection: 7
Biosphere-Climate Interactions
Conservation Planning in Context of Climate Change
Climate Change in High Mountain Systems
Ecosystem Geography
Metrics
H-Index
i10 Index
Citation
49
74
9,901
* Rankings
Ranking Based
On Selection: 8
subsurface hydrology and transport
glaciology
glacier hydrology
Metrics
H-Index
i10 Index
Citation
47
92
7,287
* Rankings
Ranking Based
On Selection: 9
Aerobiology of indoor and outdoor atmosphere
Biofouling and microbially induced corrosion
Green chemistry treatment and smart infrastructure
Metrics
H-Index
i10 Index
Citation
45
90
6,838
* Rankings
Ranking Based
On Selection: 10
Engineering Organizations
Social Networks
Knowledge Management
Metrics
H-Index
i10 Index
Citation
38
87
6,825
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
Environmental change
human behavior
climate change and adaptation
conservation
sustainability
Metrics
H-Index
i10 Index
Citation
38
81
4,636
* Rankings
Ranking Based
On Selection: 12
engineering education research
environmental engineering
Metrics
H-Index
i10 Index
Citation
38
104
4,485
* Rankings
Ranking Based
On Selection: 13
Community ecology
restoration ecology
landscape ecology
Metrics
H-Index
i10 Index
Citation
38
66
6,977
* Rankings
Ranking Based
On Selection: 14
tropical forests
agriculture
food systems
livelihoods
governance
Metrics
H-Index
i10 Index
Citation
30
42
3,879
* Rankings
Ranking Based
On Selection: 15
Environmental Psychology
Environmental Behavior
Climate Change
Adaptation
Metrics
H-Index
i10 Index
Citation
28
42
5,128
* Rankings
Ranking Based
On Selection: 16
water resources planning and management
multi-objective decision support for river and reservoir systems
river system and hydropower modeling
Metrics
H-Index
i10 Index
Citation
27
43
3,423
* Rankings
Ranking Based
On Selection: 17
Climate change
Hydrology
Water Resources
Snow
Forest
Metrics
H-Index
i10 Index
Citation
26
34
3,211
* Rankings
Ranking Based
On Selection: 18
multi-objective decision support
water resources planning and management
watershed hydrology
environmental engineering
Metrics
H-Index
i10 Index
Citation
26
34
4,007
* Rankings
Ranking Based
On Selection: 19
Regional Climate Projections
Climate Extremes
Droughts
High Elevation Climate Change
Metrics
H-Index
i10 Index
Citation
24
34
5,120
* Rankings
Ranking Based
On Selection: 20
Collaborative networks
Environmental planning
Collaborative Resilience
Metrics
H-Index
i10 Index
Citation
23
36
3,869
* Rankings
Ranking Based
On Selection: 21
environmental communication
environmental justice
environmental policy
social movements
and public advocacy
Metrics
H-Index
i10 Index
Citation
22
34
3,324
* Rankings
Ranking Based
On Selection: 22
Membrane Processes
Water-Energy Nexus
Separations
Sustainable Energy
Metrics
H-Index
i10 Index
Citation
21
28
4,408
* Rankings
Ranking Based
On Selection: 23
Machine Learning
Water Treatment and Reuse
Advance Oxidation Process
Dissolved Organic Matter
Metrics
H-Index
i10 Index
Citation
21
28
2,029
* Rankings
Ranking Based
On Selection: 24
Environmental engineering
science education
Metrics
H-Index
i10 Index
Citation
19
23
1,818
* Rankings
Ranking Based
On Selection: 25
limnology
aquatic food webs
primary production
biogeochemistry
Metrics
H-Index
i10 Index
Citation
19
22
4,311
* Rankings
Ranking Based
On Selection: 26
Global climate justice
environmental justice
energy access
just transitions
Metrics
H-Index
i10 Index
Citation
18
23
2,109
* Rankings
Ranking Based
On Selection: 27
fluvial geomorphology
floodplain dynamics
environmental management
boreal rivers
Metrics
H-Index
i10 Index
Citation
18
23
2,154
* Rankings
Ranking Based
On Selection: 28
Ambient Air Quality
Indoor Air Quality
Human-Building Interactions
Infection Control
Environmental Microbiome
Metrics
H-Index
i10 Index
Citation
17
21
1,857
* Rankings
Ranking Based
On Selection: 29
Climate change
social impact
public policy
low-carbon energy
complex systems
Metrics
H-Index
i10 Index
Citation
17
19
1,270
* Rankings
Ranking Based
On Selection: 30
mountain hydrology
remote sensing
data science
water resource management
climate change
Metrics
H-Index
i10 Index
Citation
12
12
856
* Rankings
Ranking Based
On Selection: 31
Environment
Energy
Climate Change
China
Metrics
H-Index
i10 Index
Citation
11
11
1,141
* Rankings
Ranking Based
On Selection: 32
Primates
Climate Change
Phylogeny
Modeling
Metrics
H-Index
i10 Index
Citation
7
7
379
* Rankings
Ranking Based
On Selection: 33
Wastewater Engineering
Environmental Microbiology
Metrics
H-Index
i10 Index
Citation
7
6
523
* Rankings
Ranking Based
On Selection: 34
Deep Learning
Meteorology
Physical Oceanography
Applied Mathematics
Machine Learning
Metrics
H-Index
i10 Index
Citation
6
6
269
* Rankings
Ranking Based
On Selection: 35
Paleoclimate
Tropical Climate Variability
Abrupt Climate Change
Geochemistry
Corals
Metrics
H-Index
i10 Index
Citation
6
6
103
* Rankings
Ranking Based
On Selection: 36
Environmental Health
Urban Planning and Design
Urban Forestry
Walkability
Shade and Sun Safety
Metrics
H-Index
i10 Index
Citation
5
4
86
* Rankings
Ranking Based
On Selection: 37
Environmental Engineering
Environmental Chemistry
Photochemistry
Metrics
H-Index
i10 Index
Citation
3
1
105
* Rankings
Ranking Based
On Selection: 38
smallholder agriculture
drought vulnerability
remote sensing
Metrics
H-Index
i10 Index
Citation
2
1
36
* Rankings
Ranking Based
On Selection: 39
Metrics
H-Index
i10 Index
Citation
1
1
21
* Rankings
Ranking Based
On Selection: 40
Environmental Engineering
Water Treatment
Metrics
H-Index
i10 Index
Citation
1
1
14
Karl G Linden
Metrics
H-Index
i10 Index
Citation Counts
82
228
25,229
water treatment
disinfection
oxidation
Christine Wiedinmyer
Metrics
H-Index
i10 Index
Citation Counts
77
145
26,576
Air Quality
emissions
fires
biogenic emissions
biological particles
Imma Ferrer
Metrics
H-Index
i10 Index
Citation Counts
63
118
12,251
Water quality
Mass Spectrometry
time-of-flight
pharmaceuticals
hydraulic fracturing
R Scott Summers
Metrics
H-Index
i10 Index
Citation Counts
57
138
11,571
Water quality and treatment - water reuse
Hope A Michelsen
Metrics
H-Index
i10 Index
Citation Counts
57
114
11,110
Soot
Combustion
Black carbon
Climate change
Greenhouse gases
Shelly Miller
Metrics
H-Index
i10 Index
Citation Counts
49
101
10,001
urban and indoor air quality
health effects
exposures to air pollutants
air pollution control measures
ultraviolet germicida
Kittel Timothy Gf
Metrics
H-Index
i10 Index
Citation Counts
49
74
9,901
Biosphere-Climate Interactions
Conservation Planning in Context of Climate Change
Climate Change in High Mountain Systems
Ecosystem Geography
Harihar Rajaram
Metrics
H-Index
i10 Index
Citation Counts
47
92
7,287
subsurface hydrology and transport
glaciology
glacier hydrology
Mark Hernandez
Metrics
H-Index
i10 Index
Citation Counts
45
90
6,838
Aerobiology of indoor and outdoor atmosphere
Biofouling and microbially induced corrosion
Green chemistry treatment and smart infrastructure
Paul Chinowsky
Metrics
H-Index
i10 Index
Citation Counts
38
87
6,825
Engineering Organizations
Social Networks
Knowledge Management
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!
Joel Hartter
Metrics
H-Index
i10 Index
Citation Counts
38
81
4,636
Environmental change
human behavior
climate change and adaptation
conservation
sustainability
Angela Bielefeldt
Metrics
H-Index
i10 Index
Citation Counts
38
104
4,485
engineering education research
environmental engineering
Sharon K Collinge
Metrics
H-Index
i10 Index
Citation Counts
38
66
6,977
Community ecology
restoration ecology
landscape ecology
Peter Newton
Metrics
H-Index
i10 Index
Citation Counts
30
42
3,879
tropical forests
agriculture
food systems
livelihoods
governance
Amanda Carrico
Metrics
H-Index
i10 Index
Citation Counts
28
42
5,128
Environmental Psychology
Environmental Behavior
Climate Change
Adaptation
Edith Zagona
Metrics
H-Index
i10 Index
Citation Counts
27
43
3,423
water resources planning and management
multi-objective decision support for river and reservoir systems
river system and hydropower modeling
Keith N Musselman
Metrics
H-Index
i10 Index
Citation Counts
26
34
3,211
Climate change
Hydrology
Water Resources
Snow
Forest
Joseph Kasprzyk
Metrics
H-Index
i10 Index
Citation Counts
26
34
4,007
multi-objective decision support
water resources planning and management
watershed hydrology
environmental engineering
Imtiaz Rangwala
Metrics
H-Index
i10 Index
Citation Counts
24
34
5,120
Regional Climate Projections
Climate Extremes
Droughts
High Elevation Climate Change
Bruce Evan Goldstein
Metrics
H-Index
i10 Index
Citation Counts
23
36
3,869
Collaborative networks
Environmental planning
Collaborative Resilience
Phaedra C Pezzullo
Metrics
H-Index
i10 Index
Citation Counts
22
34
3,324
environmental communication
environmental justice
environmental policy
social movements
and public advocacy
Anthony P Straub
Metrics
H-Index
i10 Index
Citation Counts
21
28
4,408
Membrane Processes
Water-Energy Nexus
Separations
Sustainable Energy
Seong Nam Nam
Metrics
H-Index
i10 Index
Citation Counts
21
28
2,029
Machine Learning
Water Treatment and Reuse
Advance Oxidation Process
Dissolved Organic Matter
Jeffrey H Writer
Metrics
H-Index
i10 Index
Citation Counts
19
23
1,818
Environmental engineering
science education
James H Mccutchan Jr
Metrics
H-Index
i10 Index
Citation Counts
19
22
4,311
limnology
aquatic food webs
primary production
biogeochemistry
D Ciplet
Metrics
H-Index
i10 Index
Citation Counts
18
23
2,109
Global climate justice
environmental justice
energy access
just transitions
Katherine B Lininger
Metrics
H-Index
i10 Index
Citation Counts
18
23
2,154
fluvial geomorphology
floodplain dynamics
environmental management
boreal rivers
Nicholas Clements
Metrics
H-Index
i10 Index
Citation Counts
17
21
1,857
Ambient Air Quality
Indoor Air Quality
Human-Building Interactions
Infection Control
Environmental Microbiome
Amy Schweikert
Metrics
H-Index
i10 Index
Citation Counts
17
19
1,270
Climate change
social impact
public policy
low-carbon energy
complex systems
Dominik Schneider
Metrics
H-Index
i10 Index
Citation Counts
12
12
856
mountain hydrology
remote sensing
data science
water resource management
climate change
Shuang Zhang
Metrics
H-Index
i10 Index
Citation Counts
11
11
1,141
Environment
Energy
Climate Change
China
Kevin Bracy Knight
Metrics
H-Index
i10 Index
Citation Counts
7
7
379
Primates
Climate Change
Phylogeny
Modeling
Alison L Ling
Metrics
H-Index
i10 Index
Citation Counts
7
6
523
Wastewater Engineering
Environmental Microbiology
Christina Kumler-Bonfanti
Metrics
H-Index
i10 Index
Citation Counts
6
6
269
Deep Learning
Meteorology
Physical Oceanography
Applied Mathematics
Machine Learning
Allison Lawman
Metrics
H-Index
i10 Index
Citation Counts
6
6
103
Paleoclimate
Tropical Climate Variability
Abrupt Climate Change
Geochemistry
Corals
Sara Tabatabaie
Metrics
H-Index
i10 Index
Citation Counts
5
4
86
Environmental Health
Urban Planning and Design
Urban Forestry
Walkability
Shade and Sun Safety
Shelby Buckley
Metrics
H-Index
i10 Index
Citation Counts
3
1
105
Environmental Engineering
Environmental Chemistry
Photochemistry
Tara Ippolito
Metrics
H-Index
i10 Index
Citation Counts
2
1
36
smallholder agriculture
drought vulnerability
remote sensing
Keani Cu Willebrand
Metrics
H-Index
i10 Index
Citation Counts
1
1
21
Choolwe Mandona
Metrics
H-Index
i10 Index
Citation Counts
1
1
14
Environmental Engineering
Water Treatment