Citation Rankings (Highly Cited Researchers) and the list of the most cited and influential researchers cover a wide range of scientific fields, spanning 197 main and sub-disciplines, as well as the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings, offering a unique service. Additionally, the list without CERN, Statistical Data, etc., provided exclusively by “AD Scientific Index”, is part of our effort to balance the situation created by CERN and researchers with statistical data, who have an advantage over others, especially those in the social and humanities fields. There should be new regulations for multi-author and CERN papers. Citation lists also reveal many rule violations and unethical practices. See also for more specific citation analyses: Scientists Last 6 years Citation Index, Universities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025
* Total Citation Counts Rankings
Ranking Based On Selection :1
Air Quality
Hydrogeochemistry
Hydrochemical Modelling
Groundwater
Ecohydrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
472
343
0.727
* Total Citation Counts Rankings
Ranking Based On Selection :2
Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
HWT Mapoma|Harold T Mapoma, Harold Mapoma, Harold W. Mapoma
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
472
343
0.727
Air Quality
Hydrogeochemistry
Hydrochemical Modelling
Groundwater
Ecohydrology
Abdul Samson
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000