Citation Rankings
Highly Cited Researchers

National Institute of Polar Research Highly Cited Researchers Citation Rankings (Sort by last 6 years Citation Index) 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

* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :26
Japan
Shu-Kuan Wong
Environmental microbiology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137
115
0.839
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :27
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
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :28
Japan
Akihisa Hattori
Geodesy
GNSS
SLR
Absolute gravimetry
Antarctica
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
61
0.953
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :29
Japan
Sachin Alexander Reddy
Space Plasma Physics
Ionospheres
Machine Learning
Space Weather
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
36
1.000
* Last 6 Years Citation Counts Rankings
Ranking Based On Selection :30
Japan
Motoshi Nishimura
Glaciology
Meteorology
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950
* Last 6 Years Citation Counts Rankings
Rankings
1,360,166
Japan
23,034
26
Ranking Based On Selection: 26
Shu-Kuan Wong
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
137
115
0.839
Environmental microbiology
* Last 6 Years Citation Counts Rankings
Rankings
1,393,231
Japan
23,483
27
Ranking Based On Selection: 27
Tikemani Bag
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
122
107
0.877
Space Physics
Helio-Physics
Solar Physics
Planetary Science
* Last 6 Years Citation Counts Rankings
Rankings
1,631,651
Japan
26,872
28
Ranking Based On Selection: 28
Akihisa Hattori
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
64
61
0.953
Geodesy
GNSS
SLR
Absolute gravimetry
Antarctica
* Last 6 Years Citation Counts Rankings
Rankings
1,823,954
Japan
29,672
29
Ranking Based On Selection: 29
Sachin Alexander Reddy
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
36
36
1.000
Space Plasma Physics
Ionospheres
Machine Learning
Space Weather
* Last 6 Years Citation Counts Rankings
Rankings
2,004,819
Japan
32,247
30
Ranking Based On Selection: 30
Motoshi Nishimura
Citation Metrics
Total
Last 6 Years
Last 6 Years / Total
20
19
0.950