Hajime Kawakami

4.2k total citations
58 papers, 1.6k citations indexed

About

Hajime Kawakami is a scholar working on Oceanography, Ecology and Global and Planetary Change. According to data from OpenAlex, Hajime Kawakami has authored 58 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 29 papers in Oceanography, 15 papers in Ecology and 11 papers in Global and Planetary Change. Recurrent topics in Hajime Kawakami's work include Marine and coastal ecosystems (26 papers), Marine Biology and Ecology Research (18 papers) and Methane Hydrates and Related Phenomena (10 papers). Hajime Kawakami is often cited by papers focused on Marine and coastal ecosystems (26 papers), Marine Biology and Ecology Research (18 papers) and Methane Hydrates and Related Phenomena (10 papers). Hajime Kawakami collaborates with scholars based in Japan, United Kingdom and United States. Hajime Kawakami's co-authors include Makio C. Honda, Yoshihiko Nakamura, Kazuhiko Matsumoto, Toshiro Saino, Minoru Kitamura, Masahide Wakita, Shuichi Watanabe, Shingo Watanabe, Tetsuichi Fujiki and J. L. A. Fordham and has published in prestigious journals such as Environmental Science & Technology, Scientific Reports and Geophysical Research Letters.

In The Last Decade

Hajime Kawakami

57 papers receiving 1.6k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Hajime Kawakami Japan 21 574 447 358 269 164 58 1.6k
Pierre Lecomte France 19 127 0.2× 62 0.1× 315 0.9× 133 0.5× 22 0.1× 72 1.5k
Charles R. Carrigan United States 25 107 0.2× 243 0.5× 283 0.8× 7 0.0× 148 0.9× 72 2.5k
Э. М. Галимов Russia 15 63 0.1× 194 0.4× 312 0.9× 120 0.4× 6 0.0× 51 1.3k
P. A. Baedecker United States 24 30 0.1× 734 1.6× 58 0.2× 243 0.9× 61 0.4× 59 1.7k
K. Komura Japan 19 33 0.1× 78 0.2× 664 1.9× 107 0.4× 563 3.4× 81 1.1k
Jonás D. De Basabe United States 11 75 0.1× 71 0.2× 186 0.5× 95 0.4× 11 0.1× 28 1.4k
Anne Davaille France 37 81 0.1× 897 2.0× 49 0.1× 64 0.2× 11 0.1× 75 4.6k
M. Koike Japan 41 101 0.2× 219 0.5× 3.2k 9.0× 77 0.3× 14 0.1× 197 5.3k
Harry J. Rose United States 20 24 0.0× 933 2.1× 42 0.1× 155 0.6× 37 0.2× 62 1.7k
D. Golomb United States 20 79 0.1× 119 0.3× 142 0.4× 17 0.1× 13 0.1× 62 1.2k

Countries citing papers authored by Hajime Kawakami

Since Specialization
Citations

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

Fields of papers citing papers by Hajime Kawakami

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hajime Kawakami

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

All Works

20 of 20 papers shown
1.
Kawakami, Hajime. (2024). Decadal decreasing trend in biological carbon pump estimated from 234Th in the western subarctic North Pacific. Journal of Radioanalytical and Nuclear Chemistry. 333(4). 1793–1802.
2.
Nagashima, Kana, Hajime Kawakami, Koji Sugie, et al.. (2023). Asian dust-deposition flux to the subarctic Pacific estimated using single quartz particles. Scientific Reports. 13(1). 15424–15424. 3 indexed citations
3.
Sukigara, Chiho, Yoshihisa Mino, Hajime Kawakami, et al.. (2018). Sinking dynamics of particulate matter in the subarctic and subtropical regions of the western North Pacific. Deep Sea Research Part I Oceanographic Research Papers. 144. 17–27. 10 indexed citations
4.
Kitamura, Minoru, Makio C. Honda, Yasunori Hamajima, et al.. (2017). Temporal changes in radiocesium contamination derived from the Fukushima Dai-ichi Nuclear Power Plant accident in oceanic zooplankton in the western North Pacific. Journal of Environmental Radioactivity. 172. 163–172. 3 indexed citations
5.
Mino, Yoshihisa, Chiho Sukigara, Makio C. Honda, et al.. (2016). Seasonal variations in the nitrogen isotopic composition of settling particles at station K2 in the western subarctic North Pacific. Journal of Oceanography. 72(6). 819–836. 16 indexed citations
6.
Honda, Makio C., Hajime Kawakami, Shingo Watanabe, & Toshiro Saino. (2013). Concentration and vertical flux of Fukushima-derived radiocesium in sinking particles from two sites in the Northwestern Pacific Ocean. Biogeosciences. 10(6). 3525–3534. 46 indexed citations
7.
Wakita, Masahide, Shingo Watanabe, Makio C. Honda, et al.. (2013). Ocean acidification from 1997 to 2011 in the subarctic western North Pacific Ocean. Biogeosciences. 10(12). 7817–7827. 39 indexed citations
8.
Honda, Makio C., Hajime Kawakami, Shingo Watanabe, & Toshiro Saino. (2013). Fukushima-derived radiocesium in western North Pacific sediment traps. 5 indexed citations
9.
Kitamura, Minoru, Yuichiro Kumamoto, Hajime Kawakami, Eric C. Cruz, & Katsunori Fujikura. (2013). Horizontal distribution of Fukushima-derived radiocesium in zooplankton in the northwestern Pacific Ocean. Biogeosciences. 10(8). 5729–5738. 25 indexed citations
10.
Harada, Naomi, et al.. (2012). 230Th-normalized Fluxes of Biogenic Components from the Central Chilean Margin during the Late Quaternary. Journal of Geography (Chigaku Zasshi). 121(3). 555–569. 1 indexed citations
11.
Fujiki, Tetsuichi, Kazuhiko Matsumoto, Makio C. Honda, Hajime Kawakami, & Shingo Watanabe. (2008). Phytoplankton composition in the subarctic North Pacific during autumn 2005. Journal of Plankton Research. 31(2). 179–191. 28 indexed citations
12.
Kawakami, Hajime, et al.. (2008). Distributions of 210Po and 210Pb radioactivity in the intermediate layer of the northwestern North Pacific. Journal of Radioanalytical and Nuclear Chemistry. 279(2). 561–566. 3 indexed citations
13.
Kawakami, Hajime & Makio C. Honda. (2007). Time-series observation of POC fluxes estimated from 234Th in the northwestern North Pacific. Deep Sea Research Part I Oceanographic Research Papers. 54(7). 1070–1090. 54 indexed citations
14.
Honda, Makio C., et al.. (2006). Quick transport of primary produced organic carbon to the ocean interior. Geophysical Research Letters. 33(16). 42 indexed citations
15.
Murata, Akihiko, Yuichiro Kumamoto, Hajime Kawakami, et al.. (2002). Impact of a spring phytoplankton bloom on the CO2 system in the mixed layer of the northwestern North Pacific. Deep Sea Research Part II Topical Studies in Oceanography. 49(24-25). 5531–5555. 23 indexed citations
16.
Fordham, J. L. A., Hajime Kawakami, R. Michel, R. Much, & Jon Robinson. (2000). High time-resolution spectroscopic imaging using intensified CCD detectors. Monthly Notices of the Royal Astronomical Society. 319(2). 414–418. 6 indexed citations
17.
Kawakami, Hajime, et al.. (1986). A Study of Line Asymmetry in Unipolar Sunspots. Publications of the Astronomical Society of Japan. 38(2). 257–265. 3 indexed citations
18.
Kawakami, Hajime, Osamu Yoshino, Kazunori Odashima, & Kenji Koga. (1985). Design, synthesis, and properties of novel water-soluble cyclophanes having naphthylphenylmethane units as hosts for aliphatic and aromatic guests.. Chemical and Pharmaceutical Bulletin. 33(12). 5610–5613. 20 indexed citations
19.
Kawakami, Hajime. (1984). Polarimetric Study of Unipolar Sunspots. Publications of the Astronomical Society of Japan. 35(4). 459–489. 12 indexed citations
20.
Takui, Takeji, et al.. (1975). MCD and ESR studies of trapped electrons in γ-irradiated poly(vinyl alcohol) films. Chemical Physics Letters. 35(4). 465–468. 6 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Pierre Lecomte Breakdown of academic impact, for papers by Charles R. Carrigan Breakdown of academic impact, for papers by Э. М. Галимов Breakdown of academic impact, for papers by P. A. Baedecker Breakdown of academic impact, for papers by K. Komura Breakdown of academic impact, for papers by Jonás D. De Basabe Breakdown of academic impact, for papers by Anne Davaille Breakdown of academic impact, for papers by M. Koike Breakdown of academic impact, for papers by Harry J. Rose Breakdown of academic impact, for papers by D. Golomb
Rankless by CCL
2026