The Citation Rankings (Highly Cited Researchers) highlight the most cited and influential researchers across a vast range of scientific fields, covering 197 main and sub-disciplines, including the Art and Humanities Citation Rankings and Social Sciences and Humanities Citation Rankings. This service, offered exclusively by AD Scientific Index, aims to provide a balanced perspective by excluding data from CERN and other statistical sources that disproportionately favor certain researchers, particularly in the social sciences and humanities. This unique approach addresses the advantages researchers with multi-author publications and CERN involvement hold over others. Furthermore, citation rankings help uncover rule violations and unethical practices within the research community. For more detailed citation analyses, explore the 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
Earth Observation
Global Change
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,686
4,486
0.254
* Total Citation Counts Rankings
Ranking Based On Selection :2
Astrophysics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,351
16,093
0.984
* Total Citation Counts Rankings
Ranking Based On Selection :3
Air pollution
environmental health
atmospheric science
meteorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,079
895
0.829
* Total Citation Counts Rankings
Ranking Based On Selection :4
Biosphere Reserves
Social-ecological systems
Global Environmental Change
Governance & Institutions
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
400
0.762
* Total Citation Counts Rankings
Ranking Based On Selection :5
Climatology
severe weather and biometeorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
226
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :6
Biometeorology
Climate
Climate Change
Tourism
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Michel Verstraete
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
17,686
4,486
0.254
Earth Observation
Global Change
Roger Deane
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16,351
16,093
0.984
Raeesa Moolla
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,079
895
0.829
Air pollution
environmental health
atmospheric science
meteorology
Kaera L. Coetzer
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
525
400
0.762
Biosphere Reserves
Social-ecological systems
Global Environmental Change
Governance & Institutions
Sarah Roffe
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
226
226
1.000
Climatology
severe weather and biometeorology
Ariel Prinsloo
University of the Witwatersrand
Johannesburg, South Africa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
13
13
1.000
Biometeorology
Climate
Climate Change
Tourism