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
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :1
Climatology
Climate Change
Environmental management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,599
806
0.504
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Environmental resources management
land use/degradation
land use conflicts and impact assessment
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
537
254
0.473
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Geography (Climatology)
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
29
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :4
Climatology
Remote sensing and GIS
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
6
0.300
Abel A. Adebayo
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,599
806
0.504
Climatology
Climate Change
Environmental management
Abdullahi Liman Tukur
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
537
254
0.473
Environmental resources management
land use/degradation
land use conflicts and impact assessment
Andrew Ezra
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
29
29
1.000
Ambrose Audu Zemba
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
6
0.300