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
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,146
4,829
0.341
* Total Citation Counts Rankings
Ranking Based On Selection :2
geochemistry
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,592
1,347
0.293
* Total Citation Counts Rankings
Ranking Based On Selection :3
Earth science
Planetary science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,288
1,774
0.414
* Total Citation Counts Rankings
Ranking Based On Selection :4
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,549
1,429
0.403
* Total Citation Counts Rankings
Ranking Based On Selection :5
Planetary Science
Mineralogy
Astrobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,847
0.648
* Total Citation Counts Rankings
Ranking Based On Selection :6
Geotechnical Engineering
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
900
404
0.449
* Total Citation Counts Rankings
Ranking Based On Selection :7
Geology
Tectonics
Geochronology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
476
0.617
* Total Citation Counts Rankings
Ranking Based On Selection :8
Astrobiology
Geochemistry
Petrology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :9
Bayesian Modeling
Machine Learning
Risk and Reliability
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
* Total Citation Counts Rankings
Ranking Based On Selection :10
Geochemistry
Isotopes
Petrology
Geology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Eizo Nakamura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
14,146
4,829
0.341
Geochemistry
Cosmochemistry
Petrology
Geophysics
Planetary Science
Hitoshi Chiba
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,592
1,347
0.293
Katsura Kobayashi
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
4,288
1,774
0.414
Earth science
Planetary science
Hidenori Terasaki
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,549
1,429
0.403
High pressure
Mineral physics
Planetary science
High-pressure mineral physics
Matthew Izawa
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,849
1,847
0.648
Planetary Science
Mineralogy
Astrobiology
Shin Ichi Nishimura
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
900
404
0.449
Takeshi Imayama
Okayama University of Science
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
772
476
0.617
Geology
Tectonics
Geochronology
Dilan M Ratnayake
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
143
143
1.000
Astrobiology
Geochemistry
Petrology
Menglu Huang
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
30
30
1.000
Bayesian Modeling
Machine Learning
Risk and Reliability
Nghiem Van Dao
Okayama University
Okayama, Japan
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
16
16
1.000
Geochemistry
Isotopes
Petrology
Geology