This map shows the geographic impact of Koichiro Doi'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 Koichiro Doi with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichiro Doi more than expected).
This network shows the impact of papers produced by Koichiro Doi. 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 Koichiro Doi. The network helps show where Koichiro Doi may publish in the future.
Co-authorship network of co-authors of Koichiro Doi
This figure shows the co-authorship network connecting the top 25 collaborators of Koichiro Doi.
A scholar is included among the top collaborators of Koichiro Doi 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 Koichiro Doi. Koichiro Doi is excluded from
the visualization to improve readability, since they are connected to all nodes in the network.
Aoyama, Yuichi, et al.. (2015). Contribution of DORIS to GGOS. Japan Geoscience Union.1 indexed citations
8.
Yamanokuchi, Tsutomu, Koichiro Doi, Kazuki Nakamura, Shigeru Aoki, & Kazuo Shibuya. (2014). Use of L-band SAR data for monitoring of ice sheet marginal zone on East Antarctica. 1–4.1 indexed citations
Yamanokuchi, Tsutomu, Koichiro Doi, & Kazuo Shibuya. (2005). Validation of grounding line of the East Antarctic Ice Sheet derived by ERS-1/2 interferometric SAR data. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 18. 1–14.13 indexed citations
14.
Fukuda, Yoichi, et al.. (2005). Calibration of the superconducting gravimeter CT#043 with an absolute gravimeter FG5#210 at Syowa Station, Antarctica. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 18(18). 41–48.10 indexed citations
15.
Ikeda, Hiroshi, Koichiro Doi, Yoichi Fukuda, Yoshiaki Tamura, & Kazuo Shibuya. (2005). Installation of the superconducting gravimeter CT(#043) at Syowa Station, Antarctica. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 18. 49–57.3 indexed citations
16.
Jike, Takaaki, Kazuo Shibuya, Koichiro Doi, et al.. (2005). The first year of Antarctic VLBI observations. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 18. 26–40.1 indexed citations
17.
Shibuya, Kazuo, Koichiro Doi, & Shigeru Aoki. (2003). Ten years' progress of Syowa Station, Antarctica, as a global geodesy network site. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 16(16). 29–52.8 indexed citations
18.
Ozawa, Taku, Kazuo Shibuya, Koichiro Doi, & Shigeru Aoki. (2002). Detection of grounding line and vertical displacement of ice shelf by SAR interferometry -A case study for the Stanjukovicha Ice Shelf, East Antarctica, using ERS tandem SAR data-. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 15. 112–122.1 indexed citations
19.
Ozawa, Taku, Koichiro Doi, & Kazuo Shibuya. (1999). A case study of generating a digital elevation model for the Soya Coast area, Antarctica, using JERS-1 SAR interferometry. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 12. 227–239.3 indexed citations
20.
Hatanaka, Yuki, S. Miyazaki, Hiroaki Negishi, et al.. (1998). Analysis of GPS data at Syowa Station and IGS tracking stations. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 11. 1–8.3 indexed citations
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.