Citation Rankings
Highly Cited Researchers

National Institute of Polar Research Highly Cited Researchers Citation Natural Sciences Rankings 2025

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 IndexUniversities Total Citations Rankings 2025 and Universities Last 6 Years Citations Rankings 2025

* Total Citation Counts Rankings
Ranking Based On Selection :1
Japan
Ryuho Kataoka
Space Physics
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,756
1,870
0.498
* Total Citation Counts Rankings
Ranking Based On Selection :2
Japan
Jean-Baptiste Thiebot
Marine Ecology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,498
1,004
0.670
* Total Citation Counts Rankings
Ranking Based On Selection :3
Japan
Takanori Nishiyama
Upper Atmospheric Physics
Space Plasma Physics
Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
571
373
0.653
* Total Citation Counts Rankings
Ranking Based On Selection :4
Japan
Tikemani Bag
Space Physics
Helio-Physics
Solar Physics
Planetary Science
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
122
107
0.877
* Total Citation Counts Rankings
Rankings
260,164
Japan
5,307
5
Ranking Based On Selection: 1
Ryuho Kataoka
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
3,756
1,870
0.498
* Total Citation Counts Rankings
Rankings
524,821
Japan
10,632
13
Ranking Based On Selection: 2
Jean-Baptiste Thiebot
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
1,498
1,004
0.670
* Total Citation Counts Rankings
Rankings
859,717
Japan
16,179
22
Ranking Based On Selection: 3
Takanori Nishiyama
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
571
373
0.653
Upper Atmospheric Physics
Space Plasma Physics
Planetary Science
* Total Citation Counts Rankings
Rankings
1,479,700
Japan
25,085
27
Ranking Based On Selection: 4
Tikemani Bag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
122
107
0.877
Space Physics
Helio-Physics
Solar Physics
Planetary Science