Keiichiro Hara

1.8k total citations
70 papers, 1.2k citations indexed

About

Keiichiro Hara is a scholar working on Atmospheric Science, Global and Planetary Change and Health, Toxicology and Mutagenesis. According to data from OpenAlex, Keiichiro Hara has authored 70 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 62 papers in Atmospheric Science, 42 papers in Global and Planetary Change and 23 papers in Health, Toxicology and Mutagenesis. Recurrent topics in Keiichiro Hara's work include Atmospheric chemistry and aerosols (61 papers), Atmospheric Ozone and Climate (31 papers) and Atmospheric aerosols and clouds (27 papers). Keiichiro Hara is often cited by papers focused on Atmospheric chemistry and aerosols (61 papers), Atmospheric Ozone and Climate (31 papers) and Atmospheric aerosols and clouds (27 papers). Keiichiro Hara collaborates with scholars based in Japan, Germany and United States. Keiichiro Hara's co-authors include Kazuo Osada, Takashi Yamanouchi, Masahiko Hayashi, Yasunobu Iwasaka, Katsuji Matsunaga, Masanori Yabuki, Chiharu Nishita‐Hara, Mizuka Kido, Gen Hashida and Masataka Shiobara and has published in prestigious journals such as SHILAP Revista de lepidopterología, Journal of Geophysical Research Atmospheres and Environmental Science & Technology.

In The Last Decade

Keiichiro Hara

69 papers receiving 1.1k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Keiichiro Hara Japan 21 979 638 390 126 54 70 1.2k
Sho Ohata Japan 20 947 1.0× 690 1.1× 437 1.1× 72 0.6× 44 0.8× 50 1.0k
Kazuhiko Miura Japan 15 861 0.9× 557 0.9× 387 1.0× 125 1.0× 45 0.8× 56 987
M. Mircea Italy 9 1.1k 1.1× 624 1.0× 545 1.4× 135 1.1× 49 0.9× 10 1.2k
Krishnakant Budhavant India 21 1.1k 1.1× 606 0.9× 655 1.7× 185 1.5× 67 1.2× 40 1.3k
D. Toom‐Sauntry Canada 25 1.4k 1.4× 923 1.4× 490 1.3× 157 1.2× 59 1.1× 37 1.6k
Swen Metzger Germany 19 1.4k 1.5× 1.1k 1.8× 422 1.1× 135 1.1× 49 0.9× 38 1.6k
Eri Tachibana Japan 17 1.2k 1.2× 461 0.7× 705 1.8× 122 1.0× 78 1.4× 33 1.3k
L. Giulianelli Italy 14 1.1k 1.1× 561 0.9× 684 1.8× 198 1.6× 97 1.8× 19 1.2k
D. D. Davis United States 17 1.1k 1.1× 714 1.1× 202 0.5× 132 1.0× 63 1.2× 30 1.2k
E. Matta Italy 6 771 0.8× 378 0.6× 433 1.1× 122 1.0× 56 1.0× 6 847

Countries citing papers authored by Keiichiro Hara

Since Specialization
Citations

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

Fields of papers citing papers by Keiichiro Hara

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Keiichiro Hara

This figure shows the co-authorship network connecting the top 25 collaborators of Keiichiro Hara. A scholar is included among the top collaborators of Keiichiro Hara 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 Keiichiro Hara. Keiichiro Hara 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.
Maki, Teruya, et al.. (2024). Seasonal variation in airborne microbial communities of the Akiyoshido Cave: Lampenflora dispersed by phototrophic bioaerosols. International Biodeterioration & Biodegradation. 195. 105905–105905. 1 indexed citations
2.
Nishita‐Hara, Chiharu, Hiroshi Kobayashi, Keiichiro Hara, & Masahiko Hayashi. (2023). Dithiothreitol‐Measured Oxidative Potential of Reference Materials of Mineral Dust: Implications for the Toxicity of Mineral Dust Aerosols in the Atmosphere. GeoHealth. 7(7). e2022GH000736–e2022GH000736. 8 indexed citations
3.
Heintzenberg, Jost, Michel Legrand, Yuan Gao, et al.. (2023). Spatio-Temporal Distributions of the Natural Non-Sea-Salt Aerosol Over the Southern Ocean and Coastal Antarctica and Its Potential Source Regions. Tellus B. 75(1). 47–64. 1 indexed citations
4.
Hara, Keiichiro, Chiharu Nishita‐Hara, Kazuo Osada, Masanori Yabuki, & Takashi Yamanouchi. (2021). Characterization of aerosol number size distributions and their effect on cloud properties at Syowa Station, Antarctica. Atmospheric chemistry and physics. 21(15). 12155–12172. 11 indexed citations
5.
Hara, Keiichiro, Kengo Sudo, Kazuo Osada, et al.. (2019). Seasonal features and origins of carbonaceous aerosols at Syowa Station, coastal Antarctica. Atmospheric chemistry and physics. 19(11). 7817–7837. 21 indexed citations
6.
Ueda, Sayako, Kazuo Osada, Keiichiro Hara, et al.. (2018). Morphological features and mixing states of soot-containing particles in the marine boundary layer over the Indian and Southern oceans. Atmospheric chemistry and physics. 18(13). 9207–9224. 13 indexed citations
7.
Hara, Keiichiro, Sumito Matoba, Motohiro Hirabayashi, & Tetsuhide Yamasaki. (2017). Frost flowers and sea-salt aerosols over seasonal sea-ice areas in northwestern Greenland during winter–spring. Atmospheric chemistry and physics. 17(13). 8577–8598. 24 indexed citations
8.
Hara, Keiichiro, Masahiko Hayashi, Masanori Yabuki, Masataka Shiobara, & Chiharu Nishita‐Hara. (2014). Simultaneous aerosol measurements of unusual aerosol enhancement in the troposphere over Syowa Station, Antarctica. Atmospheric chemistry and physics. 14(8). 4169–4183. 12 indexed citations
9.
Hara, Keiichiro, Fumio Nakazawa, Shuji Fujita, et al.. (2014). Horizontal distributions of aerosol constituents and their mixing states in Antarctica during the JASE traverse. Atmospheric chemistry and physics. 14(18). 10211–10230. 16 indexed citations
10.
Hara, Keiichiro, Kazuo Osada, & Takashi Yamanouchi. (2013). Tethered balloon-borne aerosol measurements: seasonal and vertical variations of aerosol constituents over Syowa Station, Antarctica. Atmospheric chemistry and physics. 13(17). 9119–9139. 35 indexed citations
11.
Hara, Keiichiro, Kazuo Osada, Chiharu Nishita‐Hara, & Takashi Yamanouchi. (2011). Seasonal variations and vertical features of aerosol particles in the Antarctic troposphere. Atmospheric chemistry and physics. 11(11). 5471–5484. 32 indexed citations
12.
Hara, Keiichiro, Kazuo Osada, Chiharu Nishita‐Hara, et al.. (2011). Seasonal features of ultrafine particle volatility in the coastal Antarctic troposphere. Atmospheric chemistry and physics. 11(18). 9803–9812. 20 indexed citations
13.
Hara, Keiichiro, et al.. (2010). Aerosols in Arctic troposphere in spring and summer: spatial features of aerosol constituents and their mixing states. SHILAP Revista de lepidopterología. 54. 845–867. 1 indexed citations
14.
Osada, Kazuo, Masahiko Hayashi, Keiichiro Hara, et al.. (2010). Seasonal variation of coarse aerosol particle concentration at Syowa Station, Antarctica. SHILAP Revista de lepidopterología. 1 indexed citations
15.
Hara, Keiichiro, Kazuo Osada, Masanori Yabuki, et al.. (2010). Black carbon at a coastal Antarctic station (Syowa Station): seasonal variation and transport processes. SHILAP Revista de lepidopterología. 1 indexed citations
16.
Hirasawa, Naohiko & Keiichiro Hara. (2007). Report of the activity at the S17 base near Syowa Station, Antarctica,related to the ANTSYO-II project in 2006-2007 summer season. SHILAP Revista de lepidopterología. 1 indexed citations
17.
Osada, Kazuo, Masahiko Hayashi, Masataka Shiobara, et al.. (2006). Atmospheric observation room for clean air at Syowa Station, East Antarctica. SHILAP Revista de lepidopterología. 1 indexed citations
18.
Yabuki, Masanori, Masataka Shiobara, Hiroshi Kobayashi, et al.. (2003). Optical Properties of Aerosols in the Marine Boundary Layer during a Cruise from Tokyo, Japan to Fremantle, Australia.. Journal of the Meteorological Society of Japan Ser II. 81(1). 151–162. 2 indexed citations
19.
Ishii, Shoken, Takashi Shibata, Tetsu Sakai, et al.. (2001). The Source, Size and Chemical Composition of the Winter Arctic Tropospheric Aerosol Layer Observed by Lidar at Eureka, Canada.. Journal of the Meteorological Society of Japan Ser II. 79(1). 61–78. 5 indexed citations
20.
Osada, Kazuo, Keiichiro Hara, Mizuka Kido, et al.. (2001). Sulfate depletion in snow over sea ice near Syowa Station, Antarctica, in relation to the origin of sulfate depleted sea salt aerosol particles in winter. Institutional Repository National Institute of Polar Research (National Institute of Polar Research (Japan)). 15(15). 21–31. 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.

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