Top 100 Scientists

World Top 100 Scientists 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" (873,864 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
Anwar A Aly
Soil chemistry - Water quality
treatment and management
Metrics
H-Index
i10 Index
Citation
22
31
1,578
Gamal Abdel Nasser Khalil
Soil Physics
Water Management
solute transport
biosorption
wastewater treatment
Metrics
H-Index
i10 Index
Citation
13
18
563
Maher E Saleh
Soil chemistry and fertility
water quality and wastewater treatment
saline agriculture
biochar research
nutrients behavior i
Metrics
H-Index
i10 Index
Citation
12
15
700
Mohamed Bahnassy
Land Evaluation
Geographic Information Systems
Remote Sensing
Geostatistics
Spatial Modeling
Metrics
H-Index
i10 Index
Citation
10
10
712
Taher M. Radwan
Soil Science
GIS
Remote Sensing
Earth Observation
Land Change Science
Metrics
H-Index
i10 Index
Citation
3
3
209
Rankings
Ranking Based On Selection: 1
Anwar A Aly
Metrics
H-Index
i10 Index
Citation Counts
22
31
1,578
Rankings
Ranking Based On Selection: 2
Essam Kandil|Essam Esmail Esmail Kandil
Metrics
H-Index
i10 Index
Citation Counts
18
27
1,220
Rankings
Ranking Based On Selection: 3
Gamal Abdel Nasser Khalil
Metrics
H-Index
i10 Index
Citation Counts
13
18
563
Soil Physics
Water Management
solute transport
biosorption
wastewater treatment
Rankings
Ranking Based On Selection: 4
Maher E Saleh
Metrics
H-Index
i10 Index
Citation Counts
12
15
700
Soil chemistry and fertility
water quality and wastewater treatment
saline agriculture
biochar research
nutrients behavior i
Rankings
Ranking Based On Selection: 5
Mohamed Bahnassy
Metrics
H-Index
i10 Index
Citation Counts
10
10
712
Land Evaluation
Geographic Information Systems
Remote Sensing
Geostatistics
Spatial Modeling
Rankings
Ranking Based On Selection: 6
Mahmoud Kamh
Metrics
H-Index
i10 Index
Citation Counts
9
7
989
Rankings
Ranking Based On Selection: 7
Taher M. Radwan
Metrics
H-Index
i10 Index
Citation Counts
3
3
209
Soil Science
GIS
Remote Sensing
Earth Observation
Land Change Science