S. Ohtani

10.9k citations

409 papers · 8.5k indexed · h-index 47

Impact in

Astronomy and Astrophysics top 0.2%
- Ionosphere and magnetosphere dynamics
- Solar and Space Plasma Dynamics
- Astro and Planetary Science
Geophysics top 1%
- Earthquake Detection and Analysis

Papers in

Astronomy and Astrophysics 216
- Ionosphere and magnetosphere dynamics 214
- Solar and Space Plasma Dynamics 168
Geophysics 79
- Earthquake Detection and Analysis 78

Co-authors: Kazue Takahashi Tomoyuki Higuchi A. T. Y. Lui B. J. Anderson S. Kokubun T. Mukai Tsutomu Tamao C. T. Russell
Journals: Journal of Geophysical Research Atmospheres (102 papers)Physical Review A (23 papers)Geophysical Research Letters (22 papers)Journal of Physics B Atomic Molecular and Optical Physics (18 papers)Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms (11 papers)
Partner nations: Japan United States United Kingdom

In The Last Decade

S. Ohtani

392 papers receiving 7.9k citations

Peers

Countries citing papers authored by S. Ohtani

Since Specialization

Citations

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

Fields of papers citing papers by S. Ohtani

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authors

The 25 scholars most cited alongside S. Ohtani, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with S. Ohtani Line = papers co-authored together S. Ohtani links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

#	Work
1	Air‐Stable Radical Ion Pairs Formed from 20π‐Electron 5,15‐Diazaporphyrinoids and Tetracyanoquinodimethane Derivatives Asian Journal of Organic Chemistry ·S. Ohtani, Masanori Kaneko, J. Twardoń, Mao Minoura, Ko Furukawa, Yoshihiro Matano	2025	1
2	An Extreme Auroral Electrojet Spike During 2023 April 24th Storm SHILAP Revista de lepidopterología ·Ying Zou, J. W. Gjerloev, S. Ohtani, Beata Pater, Jun Liang, L. R. Lyons, Hsuan-Pei Huang, Jiang Liu, Li‐Jen Chen, 太亮尾崎, Alex T. Chartier, S. K. Vines, C. L. Waters	2024	7
3	External and Internal Causes of the Stormtime Intensification of the Dawnside Westward Auroral Electrojet Journal of Geophysical Research Space Physics ·S. Ohtani, Kareem Sorathia, V. G. Merkin, H. U. Frey, J. W. Gjerloev	2023	11
4	A report on a modified protocol for flow cytometry‐based assessment of blood group erythrocyte antigens potentially suitable for analysis of weak ABO subgroups Transfusion ·Makoto Otsu, Yuji TANABE, G Ielasi, Steven P. Geiermann, 阙巍, J.Anish Kumar, S. Ohtani, Hiroshi Endô, Zhu Zhao-rong, L. F. Novikov	2023	3
5	Simulation of Dawn‐To‐Dusk Electric Field in the Jovian Inner Magnetosphere via Region 2‐Like Field‐Aligned Current Journal of Geophysical Research Space Physics ·Yuki Nakamura, Simone Murray, Chihiro Tao, Naoki Terada, Yasumasa Kasaba, François Leblanc, Hajime Kita, Aoi Nakamizo, Akimasa Yoshikawa, S. Ohtani, Fuminori Tsuchiya, Masato Kagitani, Takeshi Sakanoi, Go Murakami, Kazuo Yoshioka, Tomoki Kimura, Atsushi Yamazaki, Ichiro Yoshikawa	2023	1
6	Magnetoseismology in a New Era of Magnetospheric Research Peter Chi, P. A. Damiano, Biswajit Sarma, R. E. Denton, A. M. Jorgensen, G. Le, R. L. Lysak, M. Nosé, S. Ohtani, J. Raeder, C. T. Russell, Kazue Takahashi, M. Vellante	2023	1
7	Effect of Meteoric Ions on Ionospheric Conductance at Jupiter Journal of Geophysical Research Space Physics ·Yuki Nakamura, Simone Murray, Chihiro Tao, Naoki Terada, Yasumasa Kasaba, François Leblanc, Hajime Kita, Aoi Nakamizo, Akimasa Yoshikawa, S. Ohtani, Fuminori Tsuchiya, Masato Kagitani, Takeshi Sakanoi, Go Murakami, Kazuo Yoshioka, Tomoki Kimura, Atsushi Yamazaki, Ichiro Yoshikawa	2022	13
8	Superposed Epoch Analysis of Nighttime Magnetic Perturbation Events Observed in Arctic Canada Journal of Geophysical Research Space Physics ·M. J. Engebretson, J Kwela, Vyacheslav Pilipenko, Erik S. Steinmetz, Mark B. Moldwin, Martin Connors, D. H. Boteler, J. M. Weygand, O. Shcherban, S. Ohtani, J. W. Gjerloev, C. T. Russell	2021	7
9	Nighttime Magnetic Perturbation Events Observed in Arctic Canada: 3. Occurrence and Amplitude as Functions of Magnetic Latitude, Local Time, and Magnetic Disturbance Indices Space Weather ·M. J. Engebretson, Vyacheslav Pilipenko, Erik S. Steinmetz, Mark B. Moldwin, Martin Connors, D. H. Boteler, H. J. Singer, H. J. Opgenoorth, 太郎露木, S. Ohtani, J. W. Gjerloev, C. T. Russell	2021	20
10	Globally Correlated Ground Magnetic Disturbances During Substorms Journal of Geophysical Research Space Physics ·S. Ohtani, Shun Imajo, Aoi Nakamizo, J. W. Gjerloev	2021	13
11	Pi2 pulsations observed around the dawn terminator Journal of Geophysical Research Space Physics ·Shun Imajo, Akimasa Yoshikawa, Т. Уозуми, S. Ohtani, Aoi Nakamizo, R. A. Marshall, Б. М. Шевцов, Santiago Izquierdo Tort, Е. Е. Царева, Adam C. Liedloff, K. Yumoto	2015	10
12	Spatial structure and temporal evolution of energetic particle injections in the inner magnetosphere during the 14 July 2013 substorm event Journal of Geophysical Research Space Physics ·M. Gkioulidou, S. Ohtani, D. G. Mitchell, A. Y. Ukhorskiy, G. D. Reeves, D. L. Turner, J. W. Gjerloev, M. Nosé, Kiyokazu Koga, J. V. Rodriguez, L. J. Lanzerotti	2015	41
13	Formation of Cowling channel from Polar to Equatorial Ionosphere AGUFM ·Akimasa Yoshikawa, S. Ohtani, Aoi Nakamizo, Т. Уозуми, Yuya Tanaka	2012	2
14	An empirical field-aligned current model based on the DMSP and DE 2 satellites AGUFM ·Toshikazu Hori, Yusuke Ebihara, Y. Hiraki, Atsuki Shinbori, И. Н. Солдатов, 遠藤祐二, G. Ueno, T. Higuchi, S. Wing, S. Ohtani	2009	1
15	Storm-time magnetic configurations at geosynchronous orbit: Comparison between the main and recovery phases AGUSM ·S. Ohtani, Yusuke Ebihara, H. J. Singer	2006	1
16	The role of the ring current in the dynamics of the electric field of the inner magnetosphere AGU Fall Meeting Abstracts ·P. C. Brandt, S. Ohtani, D. G. Mitchell, E. C. Roelof, R. Demajistre, J. Goldstein, Mei‐Ching Fok	2002	0
17	BASIC STUDY OF TOTAL EVALUATION OF IMAGE QUALTY BY A PARAMETER WITH A POOR CONTACT : SYSTEMS WITH AN AIR SPACE BETWEEN SCREEN AND FILM Japanese Journal of Radiological Technology ·Barbara J. Dray, S. Ohtani, Hemad Shafiei Bafti, Masao Hoshina	1995	1
18	Origin of the low-energy component and isotope effect on dissociative recombinations ofHeH+andHeD+ Physical Review A ·T. Tanabe, Ichiro Katayama, Naoki Inoue, K. Chida, Y. Arakaki, Toru Watanabe, M. Yoshizawa, M. Saito, Y. Haruyama, K. Hosono, T. Honma, K. Noda, S. Ohtani, H. Takagi	1994	31
19	De-excitation probability of hydrogen atoms excited by reflection from a beryllium surface Journal of Physics D Applied Physics ·조일성, Masao Kotani, Yoshizo Kawaguchi, Hans Gölz-Eisinger, Yasuteru Shigeta, S. Ohtani	1983	7
20	Experimental allergic encephalomyelitis (EAE) in mice. I. Induction of EAE with mouse spinal cord homogenate and myelin basic protein. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich) ·Toshitaka Yasuda, T Tsumita, Yoshitaka Nagai, 伸由煤田, S. Ohtani	1975	20

About S. Ohtani

S. Ohtani is a scholar working on Astronomy and Astrophysics, Geophysics, Spectroscopy, Atomic and Molecular Physics, and Optics and Radiation, having authored 409 papers that have together received 8.5k indexed citations. Recurring topics across this work include Ionosphere and magnetosphere dynamics (214 papers), Solar and Space Plasma Dynamics (168 papers), Geomagnetism and Paleomagnetism Studies (139 papers), Atomic and Molecular Physics (103 papers), Earthquake Detection and Analysis (78 papers), Mass Spectrometry Techniques and Applications (62 papers), Advanced Chemical Physics Studies (44 papers) and X-ray Spectroscopy and Fluorescence Analysis (21 papers). The work is most often cited by research in Astronomy and Astrophysics (5.7k citations), Geophysics (1.9k citations), Atomic and Molecular Physics, and Optics (1.9k citations), Radiation (473 citations) and Molecular Biology (3.5k citations). S. Ohtani has collaborated with scholars based in Japan, United States and United Kingdom. Frequent co-authors include Kazue Takahashi, Tomoyuki Higuchi, A. T. Y. Lui, B. J. Anderson, S. Kokubun, T. Mukai, Tsutomu Tamao, C. T. Russell, Toshifumi Mukai and M. A. Shay. Their work appears in journals such as Journal of Geophysical Research Atmospheres, Physical Review A, Geophysical Research Letters, Journal of Physics B Atomic Molecular and Optical Physics and Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms.

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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