Yasuhiro Koyama

236 total papers · 1.2k total citations
58 papers, 567 citations indexed

About

Yasuhiro Koyama is a scholar working on Aerospace Engineering, Astronomy and Astrophysics and Oceanography. According to data from OpenAlex, Yasuhiro Koyama has authored 58 papers receiving a total of 567 indexed citations (citations by other indexed papers that have themselves been cited), including 37 papers in Aerospace Engineering, 30 papers in Astronomy and Astrophysics and 25 papers in Oceanography. Recurrent topics in Yasuhiro Koyama’s work include GNSS positioning and interference (33 papers), Geophysics and Gravity Measurements (25 papers) and Ionosphere and magnetosphere dynamics (16 papers). Yasuhiro Koyama is often cited by papers focused on GNSS positioning and interference (33 papers), Geophysics and Gravity Measurements (25 papers) and Ionosphere and magnetosphere dynamics (16 papers). Yasuhiro Koyama collaborates with scholars based in Japan, Austria and United States. Yasuhiro Koyama's co-authors include Tetsuro Kondo, Thomas Hobiger, Ryuichi Ichikawa, Tomoji Takasu, Y. Takahashi, Mamoru Sekido, Toshikazu Kondo, Fuminori Takahashi, Shingo Shimizu and Hiroshi Takiguchi and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, PLoS ONE and Geophysical Research Letters.

In The Last Decade

Co-authorship network of co-authors of Yasuhiro Koyama

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

Yasuhiro Koyama

50 papers receiving 528 citations

Fields of papers citing papers by Yasuhiro Koyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Countries citing papers authored by Yasuhiro Koyama

Since Specialization
Citations

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

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.

Explore authors with similar magnitude of impact

Rankless by CCL
2026