Koji Shimada

3.9k total citations
39 papers, 3.1k citations indexed

About

Koji Shimada is a scholar working on Atmospheric Science, Oceanography and Environmental Chemistry. According to data from OpenAlex, Koji Shimada has authored 39 papers receiving a total of 3.1k indexed citations (citations by other indexed papers that have themselves been cited), including 38 papers in Atmospheric Science, 15 papers in Oceanography and 14 papers in Environmental Chemistry. Recurrent topics in Koji Shimada's work include Arctic and Antarctic ice dynamics (37 papers), Climate change and permafrost (23 papers) and Methane Hydrates and Related Phenomena (14 papers). Koji Shimada is often cited by papers focused on Arctic and Antarctic ice dynamics (37 papers), Climate change and permafrost (23 papers) and Methane Hydrates and Related Phenomena (14 papers). Koji Shimada collaborates with scholars based in Japan, United States and Canada. Koji Shimada's co-authors include Eddy C. Carmack, F. A. McLaughlin, Shigeto Nishino, Motoyo Itoh, Andrey Proshutinsky, Sarah Zimmermann, Michiyo Yamamoto‐Kawai, Michael Steele, Takashi Kamoshida and William J. Williams and has published in prestigious journals such as Science, Journal of Geophysical Research Atmospheres and Geophysical Research Letters.

In The Last Decade

Koji Shimada

39 papers receiving 3.0k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koji Shimada Japan 21 2.6k 1.5k 1.3k 728 246 39 3.1k
Motoyo Itoh Japan 29 2.2k 0.8× 1.4k 0.9× 1.0k 0.8× 579 0.8× 175 0.7× 60 2.7k
Michiyo Yamamoto‐Kawai Japan 24 1.7k 0.6× 1.3k 0.9× 993 0.8× 453 0.6× 253 1.0× 48 2.3k
Matthew B. Alkire United States 18 1.3k 0.5× 832 0.5× 648 0.5× 523 0.7× 266 1.1× 30 1.8k
Wendy Ermold United States 13 1.8k 0.7× 911 0.6× 522 0.4× 852 1.2× 125 0.5× 16 2.0k
Markus Janout Germany 27 1.4k 0.5× 759 0.5× 606 0.5× 533 0.7× 229 0.9× 68 1.7k
Robert Rember United States 21 1.2k 0.5× 806 0.5× 546 0.4× 448 0.6× 234 1.0× 33 1.8k
Г. В. Алексеев Russia 15 2.0k 0.8× 463 0.3× 389 0.3× 1.2k 1.7× 163 0.7× 60 2.3k
Heidemarie Kassens Germany 30 2.5k 0.9× 652 0.4× 1.7k 1.4× 207 0.3× 298 1.2× 84 2.8k
Jens Hölemann Germany 29 1.4k 0.5× 609 0.4× 836 0.7× 253 0.3× 122 0.5× 61 1.7k
Marius Årthun Norway 21 1.7k 0.7× 915 0.6× 377 0.3× 1.1k 1.5× 178 0.7× 48 2.0k

Countries citing papers authored by Koji Shimada

Since Specialization
Citations

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

Fields of papers citing papers by Koji Shimada

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Shimada

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Shimada. A scholar is included among the top collaborators of Koji Shimada 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 Koji Shimada. Koji Shimada 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.
Jeon, Chanhyung, et al.. (2020). Observation of Bottom‐Trapped Topographic Rossby Waves on the Shelf Break of the Chukchi Sea. Journal of Geophysical Research Oceans. 125(7). 4 indexed citations
2.
Sumata, Hiroshi, Frank Kauker, Michael Kärcher, et al.. (2018). Decorrelation scales for Arctic Ocean hydrography – Part I: Amerasian Basin. Ocean science. 14(1). 161–185. 8 indexed citations
3.
Yamamoto, Masanobu, et al.. (2017). Holocene dynamics in the Bering Strait inflow to the Arctic and the Beaufort Gyre circulation based on sedimentary records from the Chukchi Sea. Climate of the past. 13(9). 1111–1127. 35 indexed citations
4.
Shimada, Koji, et al.. (2017). Variability of water mass distribution on the northern Chukchi regions in the Arctic. 73. 1 indexed citations
5.
Wadhams, Peter, Hiroshi Kanda, John E. Walsh, L. D. Hinzman, & Koji Shimada. (2012). The second International Symposium on the Arctic Research (ISAR-2): Brief overview. Polar Science. 6(1). 1–4. 1 indexed citations
6.
Fujita, Satoshi, et al.. (2011). Iron and humic‐type fluorescent dissolved organic matter in the Chukchi Sea and Canada Basin of the western Arctic Ocean. Journal of Geophysical Research Atmospheres. 116(C7). 49 indexed citations
7.
Pickart, Robert S., Michael A. Spall, G. W. K. Moore, et al.. (2010). Upwelling in the Alaskan Beaufort Sea: Atmospheric forcing and local versus non-local response. Progress In Oceanography. 88(1-4). 78–100. 82 indexed citations
8.
Mizobata, Kohei, Koji Shimada, Rebecca A. Woodgate, Seiichi Saito, & Jia Wang. (2010). Estimation of heat flux through the eastern Bering Strait. Journal of Oceanography. 66(3). 405–424. 23 indexed citations
9.
Polyakov, Igor V., Leonid Timokhov, V. A. Alexeev, et al.. (2010). Arctic Ocean Warming Contributes to Reduced Polar Ice Cap. Journal of Physical Oceanography. 40(12). 2743–2756. 265 indexed citations
10.
McLaughlin, F. A., Eddy C. Carmack, William J. Williams, et al.. (2009). Joint effects of boundary currents and thermohaline intrusions on the warming of Atlantic water in the Canada Basin, 1993–2007. Journal of Geophysical Research Atmospheres. 114(C1). 84 indexed citations
11.
Yamamoto‐Kawai, Michiyo, F. A. McLaughlin, Eddy C. Carmack, et al.. (2009). Surface freshening of the Canada Basin, 2003–2007: River runoff versus sea ice meltwater. Journal of Geophysical Research Atmospheres. 114(C1). 183 indexed citations
12.
Jin, Meibing, et al.. (2008). Observations and modeling of the ice-ocean conditions in the coastal Chukchi and Beaufort Seas. 海洋学报(英文版). 2 indexed citations
13.
Nishino, Shigeto, Koji Shimada, Motoyo Itoh, Michiyo Yamamoto‐Kawai, & Sanae Chiba. (2008). East–west differences in water mass, nutrient, and chlorophyll a distributions in the sea ice reduction region of the western Arctic Ocean. Journal of Geophysical Research Atmospheres. 113(C1). 45 indexed citations
14.
Christensen, John P., Koji Shimada, Igor Semiletov, & Patricia A. Wheeler. (2008). Chlorophyll Response to Shelf-Break Upwelling and Winds in the Chukchi Sea, Alaska, in Autumn. 2(1). 34–53. 11 indexed citations
15.
Itoh, Motoyo, Eddy C. Carmack, Koji Shimada, et al.. (2007). Formation and spreading of Eurasian source oxygen‐rich halocline water into the Canadian Basin in the Arctic Ocean. Geophysical Research Letters. 34(8). 17 indexed citations
16.
Nishino, Shigeto, Koji Shimada, & Motoyo Itoh. (2005). Use of ammonium and other nitrogen tracers to investigate the spreading of shelf waters in the western Arctic halocline. Journal of Geophysical Research Atmospheres. 110(C10). 34 indexed citations
17.
McLaughlin, F. A., Koji Shimada, Eddy C. Carmack, Motoyo Itoh, & Shigeto Nishino. (2005). The hydrography of the southern Canada Basin, 2002. Polar Biology. 28(3). 182–189. 36 indexed citations
18.
Shimada, Koji, Motoyo Itoh, Shigeto Nishino, et al.. (2005). Halocline structure in the Canada Basin of the Arctic Ocean. Geophysical Research Letters. 32(3). 123 indexed citations
19.
Steele, Michael, J. Morison, Wendy Ermold, et al.. (2004). Circulation of summer Pacific halocline water in the Arctic Ocean. Journal of Geophysical Research Atmospheres. 109(C2). 336 indexed citations
20.
Shimada, Koji, et al.. (2001). Varieties of shallow temperature maximum waters in the Western Canadian Basin of the Arctic Ocean. Geophysical Research Letters. 28(18). 3441–3444. 162 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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