Masaki Ejiri

2.8k total citations
97 papers, 2.2k citations indexed

About

Masaki Ejiri is a scholar working on Astronomy and Astrophysics, Geophysics and Aerospace Engineering. According to data from OpenAlex, Masaki Ejiri has authored 97 papers receiving a total of 2.2k indexed citations (citations by other indexed papers that have themselves been cited), including 71 papers in Astronomy and Astrophysics, 24 papers in Geophysics and 23 papers in Aerospace Engineering. Recurrent topics in Masaki Ejiri's work include Ionosphere and magnetosphere dynamics (67 papers), Solar and Space Plasma Dynamics (53 papers) and Earthquake Detection and Analysis (22 papers). Masaki Ejiri is often cited by papers focused on Ionosphere and magnetosphere dynamics (67 papers), Solar and Space Plasma Dynamics (53 papers) and Earthquake Detection and Analysis (22 papers). Masaki Ejiri collaborates with scholars based in Japan, Sweden and United States. Masaki Ejiri's co-authors include Yusuke Ebihara, Paul Smith, R. A. Hoffman, Masafumi Hirahara, S. Machida, T. Obara, A. Nishida, T. Mukai, N. Kaya and T. Terasawa and has published in prestigious journals such as Science, SHILAP Revista de lepidopterología and Journal of Geophysical Research Atmospheres.

In The Last Decade

Masaki Ejiri

86 papers receiving 1.9k citations

Peers

Countries citing papers authored by Masaki Ejiri

Since Specialization

Citations

This map shows the geographic impact of Masaki Ejiri'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 Masaki Ejiri with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Masaki Ejiri more than expected).

Fields of papers citing papers by Masaki Ejiri

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Masaki Ejiri. 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 Masaki Ejiri. The network helps show where Masaki Ejiri may publish in the future.

Co-authorship network of co-authors of Masaki Ejiri

This figure shows the co-authorship network connecting the top 25 collaborators of Masaki Ejiri. A scholar is included among the top collaborators of Masaki Ejiri 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 Masaki Ejiri. Masaki Ejiri is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Evolution of the ring current energy during May 2-4, 1998 magnetic storm 2004 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Natalia Ganushkina, (unknown), T. I. Pulkkinen, Yusuke Ebihara, Masaki Ejiri, (unknown)	1
2	A new all-sky optics for aurora and airglow imaging 2004 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Makoto Taguchi, Masaki Ejiri, (unknown)	10
3	Solar ultraviolet irradiance in the ozone hole region in Antarctica 2001 ·SHILAP Revista de lepidopterología ·(unknown), Hiroshi Miyaoka, Masaki Ejiri, Masako Sasaki, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	2
4	Initial results of Syowa MF radar observations in Antarctica 2001 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Masaki Tsutsumi, T. Asô, Masaki Ejiri	14
5	Altitude profile of electron density and oxygen green line in active auroral arcs based on electron differential number flux observed by sounding rocket 1998 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Kunizo Onda, Masaki Ejiri, (unknown), Hiroshi Miyaoka	1
6	System design and initial results of all sky imager at South Pole 1997 ·SHILAP Revista de lepidopterología ·Masaki Okada, Masaki Ejiri, Shoichi Okano, Makoto Taguchi, (unknown)	1
7	Loss effects for energetic protons associated with a magnetic storm in the inner magnetosphere 1997 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Yusuke Ebihara, Hiroshi Miyaoka, (unknown), Masaki Ejiri	1
8	MF radar observations of antarctic mesosphere and lower thermosphere 1997 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Masaki Tsutsumi, Masaki Ejiri, Shoichi Okano, Natsuo Sato, Hisao Yamagishi, K. Igarashi, Toshitaka Tsuda	1
9	Measurement of cosmic-ray protons during Polar Patrol Balloon experiment in Antarctica 1997 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·M. Nakagawa, Masaki Ejiri, (unknown), Y. Katayose, (unknown), Takeshi Kohno, (unknown), K. Morimoto, Hiroyuki Murakami, (unknown), Jun Nishimura, T. Takahashi, T. Yamagami, (unknown), M. Yamauchi	0
10	An upgraded method for reconstructing 3-dimensional structure of aurora from stereo images 1993 ·SHILAP Revista de lepidopterología ·(unknown), T. Asô, Takeshi Hashimoto, Minoru Abe, Masaki Ejiri, (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown), (unknown)	0
11	Aurora stereo observations in Iceland 1993 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·T. Asô, Masaki Ejiri, Hiroshi Miyaoka, Takayuki Ono, (unknown), (unknown), Minoru Abe	2
12	Polar Patrol Balloon (PPB) experiment of the 30th Japanese Antarctic Research Expedition (1989-1990) 1991 ·SHILAP Revista de lepidopterología ·Akira Kadokura, Masaki Ejiri, Shigeo Ohta, (unknown)	3
13	HF radar experiment at Syowa Station for the study of high-latitude ionosphere-2: A capability (extended abstract) 1990 ·Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)) ·Tadahiko Ogawa, Takeo Hirasawa, Masaki Ejiri, Natsuo Sato, Hisao Yamagishi, Ryoichi Fujii, K. Igarashi	1
14	Polar Patrol Balloon experiment during 1991-1993 1989 ·SHILAP Revista de lepidopterología ·Ryoichi Fujii, Hiroshi Miyaoka, Akira Kadokura, Takayuki Ono, Hisao Yamagishi, Natsuo Sato, Masaki Ejiri, Takeo Hirasawa, Jun Nishimura, (unknown), T. Yamagami, Shigeo Ohta, (unknown), K. Tsuruda, (unknown), H. Fukunishi, (unknown), Susumu Kokubun	6
15	Preliminary report on the results of rocket experiments at Syowa Station in 1984 1985 ·Memoirs of National Institute of Polar Research. Special issue ·Takesi Nagata, Takeo Hirasawa, Masaki Ejiri, Takayuki Ono	5
16	Polar cleft structure and SEC associated plasma irregularities observed by Greenland rocket experiment, 1976 1982 ·Memoirs of National Institute of Polar Research. Special issue ·Masaki Ejiri, Hisao Yamagishi, Kunio Uchida, J. K. Olesen, F. Primdahl, (unknown)	3
17	The Results of Auroral Sounding with S-310JA-4 Rocket: Electric Field, Particle and Waves 1981 ·Memoirs of National Institute of Polar Research. Special issue ·Hisao Yamagishi, Masaki Ejiri, Takeo Hirasawa, K. Tsuruda, Iwane Kimura, (unknown)	2
18	SEPAC Particle Accelerator Test in NASDA Space Chamber 1978 ·JAXA Repository (JAXA) ·T. Obayashi, Kyoichi Kuriki, Nobuki Kawashima, Makoto Nagatomo, Isao Kudo, Keiken Ninomiya, (unknown), Masaki Ejiri, Susumu Sasaki	1
19	The Gyro-Plasma Probe onboard the REXS-DENPA Satellite : Technical Report of IPS Research Group 1973 ·JAXA Repository (JAXA) ·Masaki Ejiri, Hiroshi Oya, T. Asô, Kozo Morita, T. Obayashi, (unknown), (unknown)	1
20	MEASUREMENT OF IONOSPHERE BY THE GYRO-PLASMA PROBE. 1969 ·OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) ·Masaki Ejiri, T. Obayashi	5

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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