3.4k total citations 159 papers, 2.5k citations indexed
About
Ryoichi Fujii is a scholar working on Astronomy and Astrophysics, Geophysics and Molecular Biology.
According to data from OpenAlex, Ryoichi Fujii has authored 159 papers receiving a total of 2.5k indexed citations (citations by other indexed papers that have themselves been cited), including 105 papers in Astronomy and Astrophysics, 58 papers in Geophysics and 37 papers in Molecular Biology. Recurrent topics in Ryoichi Fujii's work include Ionosphere and magnetosphere dynamics (104 papers), Earthquake Detection and Analysis (58 papers) and Solar and Space Plasma Dynamics (53 papers). Ryoichi Fujii is often cited by papers focused on Ionosphere and magnetosphere dynamics (104 papers), Earthquake Detection and Analysis (58 papers) and Solar and Space Plasma Dynamics (53 papers). Ryoichi Fujii collaborates with scholars based in Japan, Finland and Norway. Ryoichi Fujii's co-authors include Satonori Nozawa, S. Buchert, Yasunobu Ogawa, M. Sugiura, S. Ohtani, T. Iijima, T. A. Potemra, A. Brekke, Takesi Iijima and R. A. Hoffman and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Geophysical Research Atmospheres and Cancer Research.
In The Last Decade
Ryoichi Fujii
149 papers
receiving
2.3k citations
Peers — A (Enhanced Table)
Peers by citation overlap · career bar shows stage (early→late)
cites ·
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This map shows the geographic impact of Ryoichi Fujii's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryoichi Fujii with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryoichi Fujii more than expected).
This network shows the impact of papers produced by Ryoichi Fujii. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryoichi Fujii. The network helps show where Ryoichi Fujii may publish in the future.
Co-authorship network of co-authors of Ryoichi Fujii
This figure shows the co-authorship network connecting the top 25 collaborators of Ryoichi Fujii.
A scholar is included among the top collaborators of Ryoichi Fujii based on the total number of
citations received by their joint publications. Widths of edges
represent the number of papers authors have co-authored together.
Node borders
signify the number of papers an author published with Ryoichi Fujii. Ryoichi Fujii is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Sato, Yoshihiro, Takayuki Ono, Atsushi Kumamoto, et al.. (2008). Ground-based observation of MF auroral radio emissions in the polar cap and cusp regions. AGUFM. 2008.1 indexed citations
4.
Nozawa, Satonori, Ryoichi Fujii, A. Brekke, et al.. (2002). Seasonal Variation of Quasi 2-day Wave In The Polar Mesosphere. EGS General Assembly Conference Abstracts. 1101.1 indexed citations
Kanzawa, Hiroshi, Ryoichi Fujii, Koji Yamazaki, & Manabu D. Yamanaka. (1994). Trajectory analysis of Polar Patrol Balloon (PPB) flights in the stratosphere over Antarctica in summer and spring: A preliminary result. NASA Technical Reports Server (NASA). 606–609.1 indexed citations
Iversen, I. B., Hiroshi Miyaoka, Noboru Sato, S. Ullaland, & Ryoichi Fujii. (1987). Preliminary results from the auroral zone ionosphere observations during the AZCO balloon campaign in 1985. Memoirs of National Institute of Polar Research. Special issue. 47(47). 36–43.
11.
Murakami, Hiroyuki, Atsushi Nakamoto, T. Yamagami, et al.. (1987). A balloon observation of auroral X-ray images in the northern auroral zone. Memoirs of National Institute of Polar Research. Special issue. 47(47). 44–55.2 indexed citations
12.
Fujii, Ryoichi, Natsuo Sato, Takayuki Ono, et al.. (1987). Conjugacy of rapid motions and small-scale deformations of discrete auroras by all-sky TV observations. Memoirs of National Institute of Polar Research. Special issue. 48(48). 72–80.6 indexed citations
13.
Iwasaka, Yasunobu, et al.. (1985). Laser radar observation of the polar stratospheric aerosol layer. 18.1 indexed citations
14.
Igarashi, K., et al.. (1985). 50 MHz auroral doppler radar observations associated with Pc 5 geomagnetic pulsations. Memoirs of National Institute of Polar Research. Special issue. 36(36). 104–113.2 indexed citations
15.
Ogawa, Tadahiko, et al.. (1983). Preliminary results of new 50 MHz doppler radar experiment at Syowa Station. Memoirs of National Institute of Polar Research. Special issue. 26(26). 193–201.1 indexed citations
16.
Iwasaka, Yasunobu, Takeo Hirasawa, H. Fukunishi, et al.. (1983). The laser radar system for measurement of the middle atmosphere at Syowa Station in Antarctica (in Japanese). 80. 1–13.2 indexed citations
Saka, O., et al.. (1981). Polarization Study of Pc1 and Pc1-2 Band Pulsations at Conjugate Stations. Memoirs of National Institute of Polar Research. Special issue. 18(18). 118–126.2 indexed citations
19.
Nagata, Takesi, et al.. (1980). ULF-VLF WAVES OBSERVED AT THE SYOWA STATION-ICELAND CONJUGATE PAIR. Memoirs of National Institute of Polar Research. Special issue. 16. 25–38.2 indexed citations
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