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
Climate Sciences
Environmental Management
Spatial analyst
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134
93
0.694
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :2
Soil Geomorphology and environmental management
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68
59
0.868
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :3
Natural Hazards
Climate Change Adaptation and Sustainable Livelihoods
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
39
0.907
Ishiaku Ibrahim
Federal University Birnin Kebbi
Birnin Kebbi, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
134
93
0.694
Climate Sciences
Environmental Management
Spatial analyst
Aminu Zuni
Federal University Birnin Kebbi
Birnin Kebbi, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
68
59
0.868
Soil Geomorphology and environmental management
Abdullahi Umar
Federal University Birnin Kebbi
Birnin Kebbi, Nigeria
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
43
39
0.907
Natural Hazards
Climate Change Adaptation and Sustainable Livelihoods