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 1,123,368 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
Water Resources | Hydrology | Climate Chang
Water Resources | Hydrology | Climate Chang
H-Index Metrics
-
H-Index52
-
i10 Index139
-
Citation Counts7,544
* Total H Index Rankings
Rankings
Ranking Based On Selection:
2
Engineering & Technology / Environmental Science & Engineering
Environmental Science and Egg. | Algal Biotechnology | Bioenergy | Bioremediatio
Environmental Science and Egg. | Algal Biotechnology | Bioenergy | Bioremediatio
H-Index Metrics
-
H-Index28
-
i10 Index52
-
Citation Counts4,352
* Total H Index Rankings
Rankings
Ranking Based On Selection:
3
Engineering & Technology / Environmental Science & Engineering
Geotechnical Engineering | Environmental Biotechnology | Geoenvironmental Engineerin
Geotechnical Engineering | Environmental Biotechnology | Geoenvironmental Engineerin
H-Index Metrics
-
H-Index14
-
i10 Index14
-
Citation Counts1,056
* Total H Index Rankings
Rankings
Ranking Based On Selection:
4
Engineering & Technology / Environmental Science & Engineering
Drought | Flash Drought | Crop modelling | Climate change | Extreme Weather Event
Drought | Flash Drought | Crop modelling | Climate change | Extreme Weather Event
H-Index Metrics
-
H-Index9
-
i10 Index9
-
Citation Counts901
* Total H Index Rankings
Rankings
Ranking Based On Selection:
5
Engineering & Technology / Environmental Science & Engineering
Glaciology | Hydrology | Remote Sensing (Optical and SAR) | GIS | Climate Chang
Glaciology | Hydrology | Remote Sensing (Optical and SAR) | GIS | Climate Chang
H-Index Metrics
-
H-Index9
-
i10 Index9
-
Citation Counts553
* Total H Index Rankings
Rankings
Ranking Based On Selection:
6
Engineering & Technology / Environmental Science & Engineering
Environment Economics | Disaster Management | Climate Change
Environment Economics | Disaster Management | Climate Change
H-Index Metrics
-
H-Index2
-
i10 Index1
-
Citation Counts33

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