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 1,122,068 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 / Environmental Science & Engineering
Environmental Soil Science & Biogeochemistr
Environmental Soil Science & Biogeochemistr
H-Index Metrics
-
H-Index168
-
i10 Index778
-
Citation Counts104,756
* Total H Index Rankings
Rankings
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Water Treatment Processes | Environmental Nanotechnology | Advanced Oxidation | Membrane Technolog
Water Treatment Processes | Environmental Nanotechnology | Advanced Oxidation | Membrane Technolog
H-Index Metrics
-
H-Index142
-
i10 Index861
-
Citation Counts78,533
* Total H Index Rankings
Rankings
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Groundwater | Hydrogeology | Hydrology | Earth Science
Groundwater | Hydrogeology | Hydrology | Earth Science
H-Index Metrics
-
H-Index130
-
i10 Index1,102
-
Citation Counts79,831
* Total H Index Rankings
Rankings
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
environmental science | chemical engineering | water treatment | catalysi
environmental science | chemical engineering | water treatment | catalysi
H-Index Metrics
-
H-Index127
-
i10 Index603
-
Citation Counts56,861
* Total H Index Rankings
Rankings
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Glacier energy and mass balance | Climate change at high altitude region | Glacier hydolog
Glacier energy and mass balance | Climate change at high altitude region | Glacier hydolog
H-Index Metrics
-
H-Index126
-
i10 Index1,220
-
Citation Counts85,830
* Total H Index Rankings
Rankings
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Hydrological modeling and prediction | Surface water and groundwater interaction | Hydrological response to climate chang
Hydrological modeling and prediction | Surface water and groundwater interaction | Hydrological response to climate chang
H-Index Metrics
-
H-Index125
-
i10 Index1,083
-
Citation Counts72,036
* Total H Index Rankings
Rankings
Ranking Based On Selection:
7
Engineering & Technology / Environmental Science & Engineering
Water Treatment | Environmental Engineering | Environmental Nanotechnology | Bioremediatio
Water Treatment | Environmental Engineering | Environmental Nanotechnology | Bioremediatio
H-Index Metrics
-
H-Index121
-
i10 Index443
-
Citation Counts43,430
* Total H Index Rankings
Rankings
Ranking Based On Selection:
8
Engineering & Technology / Environmental Science & Engineering
Environmental analytical chemistry | Environmental monitoring | the fate of pollutant
Environmental analytical chemistry | Environmental monitoring | the fate of pollutant
H-Index Metrics
-
H-Index121
-
i10 Index1,025
-
Citation Counts73,686
* Total H Index Rankings
Rankings
Ranking Based On Selection:
9
Engineering & Technology / Environmental Science & Engineering
Energy storage and conversion | Batteries | Li-S battery | metal air battery | Na ion batter
Energy storage and conversion | Batteries | Li-S battery | metal air battery | Na ion batter
H-Index Metrics
-
H-Index117
-
i10 Index486
-
Citation Counts46,156
* Total H Index Rankings
Rankings
Ranking Based On Selection:
10
* 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
Climate Change Economics | Ecological Economics | Emission Data Accountin
Climate Change Economics | Ecological Economics | Emission Data Accountin
H-Index Metrics
-
H-Index115
-
i10 Index287
-
Citation Counts47,131
* Total H Index Rankings
Rankings
Ranking Based On Selection:
13
* Total H Index Rankings
Rankings
Ranking Based On Selection:
14
Engineering & Technology / Environmental Science & Engineering
Disinfection and DBPs | DBP precursors and characterization | nitrosamines | NOM | T&
Disinfection and DBPs | DBP precursors and characterization | nitrosamines | NOM | T&
H-Index Metrics
-
H-Index114
-
i10 Index897
-
Citation Counts56,121
* Total H Index Rankings
Rankings
Ranking Based On Selection:
15
Engineering & Technology / Environmental Science & Engineering
Soil remediation | Biochar | Waste management | Soil CN cycling | Water qualit
Soil remediation | Biochar | Waste management | Soil CN cycling | Water qualit
H-Index Metrics
-
H-Index111
-
i10 Index507
-
Citation Counts47,623
* Total H Index Rankings
Rankings
Ranking Based On Selection:
16
* Total H Index Rankings
Rankings
Ranking Based On Selection:
17
* Total H Index Rankings
Rankings
Ranking Based On Selection:
18
Engineering & Technology / Environmental Science & Engineering
emission | atmospheric chemistry | health impacts | mercur
emission | atmospheric chemistry | health impacts | mercur
H-Index Metrics
-
H-Index108
-
i10 Index398
-
Citation Counts39,888
* Total H Index Rankings
Rankings
Ranking Based On Selection:
19
Engineering & Technology / Environmental Science & Engineering
POPs | Emerging Contaminants | PFAS | PPCP
POPs | Emerging Contaminants | PFAS | PPCP
H-Index Metrics
-
H-Index105
-
i10 Index401
-
Citation Counts37,467
* Total H Index Rankings
Rankings
Ranking Based On Selection:
20
* Total H Index Rankings
Rankings
Ranking Based On Selection:
21
Engineering & Technology / Environmental Science & Engineering
Disinfection byproducts | emerging contaminants | water treatment | water chemistr
Disinfection byproducts | emerging contaminants | water treatment | water chemistr
H-Index Metrics
-
H-Index104
-
i10 Index491
-
Citation Counts44,620
* Total H Index Rankings
Rankings
Ranking Based On Selection:
22
Engineering & Technology / Environmental Science & Engineering
Atmosperic Environment | Cryosphere | Climate Chang
Atmosperic Environment | Cryosphere | Climate Chang
H-Index Metrics
-
H-Index101
-
i10 Index651
-
Citation Counts45,523
* Total H Index Rankings
Rankings
Ranking Based On Selection:
23
Engineering & Technology / Environmental Science & Engineering
Chemistry | Environmental Sciences & Ecology | Toxicolog
Chemistry | Environmental Sciences & Ecology | Toxicolog
H-Index Metrics
-
H-Index98
-
i10 Index519
-
Citation Counts34,936
* Total H Index Rankings
Rankings
Ranking Based On Selection:
24
Engineering & Technology / Environmental Science & Engineering
environmental engineering | water treatment | environmental nanotechnology | adsorption | advanced oxidation processe
environmental engineering | water treatment | environmental nanotechnology | adsorption | advanced oxidation processe
H-Index Metrics
-
H-Index97
-
i10 Index293
-
Citation Counts33,562
* Total H Index Rankings
Rankings
Ranking Based On Selection:
25
Engineering & Technology / Environmental Science & Engineering
Environmental engineering | environmental microbiology | microbial ecology | vapor intrusion
Environmental engineering | environmental microbiology | microbial ecology | vapor intrusion
H-Index Metrics
-
H-Index94
-
i10 Index596
-
Citation Counts37,463

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