Citation Rankings (Highly Cited Researchers) 2024 and list of influential and most cited researchers in Agriculture and Forestry, Art, Design and Architecture, Business and Management, Economics and Econometrics, Education, Engineering and Technology, History, Philosophy, Theology, Law, Medicine and Health Sciences, Natural Sciences and Social Sciences and their 256 sub-branches is a unique service offered only by “AD Scientific Index”. You can see the most cited and influential researchers in the country and region. See also for more specific citation analyses: "last 6 years citation index" Universities Rankings 2024 (Sort by: Total Citations) and Universities Rankings 2024 (Sort by : Last 6 Years Citations)
![Yasuhiko Ohara](https://cdn.adscientificindex.com/pictures/9d/4976476.jpg)
Marine Geology
Mantle Petrology
Geobiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,879
2,742
0.466
![Tadashi Ishikawa](/user/assets/images/profile/no-profile-photo.png)
seafloor geodesy
crustal deformation
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,065
1,113
0.539
Yasuhiko Ohara
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
5,879
2,742
0.466
Marine Geology
Mantle Petrology
Geobiology
Tadashi Ishikawa
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
2,065
1,113
0.539