Hideki Okajima

2.6k total citations · 2 hit papers
16 papers, 1.8k citations indexed

About

Hideki Okajima is a scholar working on Global and Planetary Change, Oceanography and Atmospheric Science. According to data from OpenAlex, Hideki Okajima has authored 16 papers receiving a total of 1.8k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Global and Planetary Change, 9 papers in Oceanography and 9 papers in Atmospheric Science. Recurrent topics in Hideki Okajima's work include Climate variability and models (10 papers), Atmospheric and Environmental Gas Dynamics (7 papers) and Oceanographic and Atmospheric Processes (6 papers). Hideki Okajima is often cited by papers focused on Climate variability and models (10 papers), Atmospheric and Environmental Gas Dynamics (7 papers) and Oceanographic and Atmospheric Processes (6 papers). Hideki Okajima collaborates with scholars based in Japan, United States and Australia. Hideki Okajima's co-authors include Michio Kawamiya, Shingo Watanabe, Tomohiro Hajima, Manabu Abe, Kumiko Takata, Etsushi Kato, Tatsuya Nagashima, Takashi Nozawa, Takeshi Ise and Toshihiko Takemura and has published in prestigious journals such as Journal of Climate, Geophysical Research Letters and Organic Letters.

In The Last Decade

Hideki Okajima

16 papers receiving 1.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

MIROC-ESM 2010: model description and basic results of CMIP5-20c3m experiments

2011 1.1k citations Shingo Watanabe, Tomohiro Hajima et al. Geoscientific model development profile →
Development of the MIROC-ES2L Earth system model and the evaluation of biogeochemical processes and feedbacks

2020 337 citations Tomohiro Hajima, Michio Watanabe et al. Geoscientific model development profile →

Peers

Hideki Okajima

GPC

OCEAN

ECOLO

Manabu Abe Japan

Yoshiki Komuro Japan

Ryouta O’ishi Japan

Hisashi Sato Japan

Nathalie Philippon France

Simon Connor Australia

N. C. Pepin United Kingdom

Jennifer Velez United States

Gregory T. Pederson United States

Cary J. Mock United States

Manabu Abe Japan

Hideki Okajima

1.6k ×1.3

GPC

1.4k ×1.4

361 ×1.0

OCEAN

257 ×1.3

ECOLO

211 ×1.0

Citations per year, relative to Hideki Okajima Hideki Okajima (= 1×) peers Manabu Abe

Countries citing papers authored by Hideki Okajima

Since Specialization

Citations

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

Fields of papers citing papers by Hideki Okajima

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hideki Okajima

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

All Works

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16 of 16 papers shown

Hajima, Tomohiro, Michio Watanabe, A. Yamamoto, et al.. (2020). Development of the MIROC-ES2L Earth system model and the evaluation of biogeochemical processes and feedbacks. Geoscientific model development. 13(5). 2197–2244. 337 indexed citations breakdown →

Hajima, Tomohiro, Michio Watanabe, A. Yamamoto, et al.. (2019). Description of the MIROC-ES2L Earth system model andevaluation of its climate–biogeochemical processes and feedbacks. 30 indexed citations

Nohara, Daisuke, Junichi Tsutsui, Shingo Watanabe, et al.. (2015). Examination of a climate stabilization pathway via zero-emissions using Earth system models. Environmental Research Letters. 10(9). 95005–95005. 7 indexed citations

Hajima, Tomohiro, Michio Kawamiya, Michio Watanabe, et al.. (2014). Modeling in Earth system science up to and beyond IPCC AR5. Progress in Earth and Planetary Science. 1(1). 22 indexed citations

Sueyoshi, Tetsuo, Rumi Ohgaito, A. Yamamoto, et al.. (2013). Set-up of the PMIP3 paleoclimate experiments conducted using an Earth system model, MIROC-ESM. Geoscientific model development. 6(3). 819–836. 79 indexed citations

Mori, Yusuke, et al.. (2012). Asymmetric and Highly Stereoselective Synthesis of the DEF-Ring Moiety of (−)-FR182877 and Its Derivative Inducing Mitotic Arrest. Organic Letters. 14(8). 2086–2089. 10 indexed citations

Ishiko, Takatoshi, et al.. (2012). An improved technique for liver transection using a new device for soft coagulation in living donor hepatectomy.. PubMed. 59(118). 1907–10. 8 indexed citations

Watanabe, Shingo, Tomohiro Hajima, Kengo Sudo, et al.. (2011). MIROC-ESM 2010: model description and basic results of CMIP5-20c3m experiments. Geoscientific model development. 4(4). 845–872. 1078 indexed citations breakdown →

Okajima, Hideki & Michio Kawamiya. (2011). Pacific climate variability and the possible impact on global surface CO2 flux. Carbon Balance and Management. 6(1). 8–8. 1 indexed citations

10.

Tanimoto, Youichi, et al.. (2010). A Peculiar Feature of the Seasonal Migration of the South American Rain Band. Journal of the Meteorological Society of Japan Ser II. 88(1). 79–90. 2 indexed citations

11.

Tanimoto, Youichi, Shang‐Ping Xie, Hideki Okajima, et al.. (2008). Observations of Marine Atmospheric Boundary Layer Transitions across the Summer Kuroshio Extension*. Journal of Climate. 22(6). 1360–1374. 46 indexed citations

12.

Annamalai, H., Hideki Okajima, & Masahiro Watanabe. (2007). Possible Impact of the Indian Ocean SST on the Northern Hemisphere Circulation during El Niño*. Journal of Climate. 20(13). 3164–3189. 82 indexed citations

13.

Okajima, Hideki & Shang‐Ping Xie. (2007). Orographic effects on the northwestern Pacific monsoon: Role of air‐sea interaction. Geophysical Research Letters. 34(21). 27 indexed citations

14.

Okajima, Hideki. (2006). Orographic effects on tropical climate in a coupled ocean-atmosphere general circulation model. PhDT. 1 indexed citations

15.

Okajima, Hideki, Shang‐Ping Xie, & Atusi Numaguti. (2003). Interhemispheric Coherence of Tropical Climate Variability: Effect of the Climatological ITCZ. Journal of the Meteorological Society of Japan Ser II. 81(6). 1371–1386. 37 indexed citations

16.

Sekimizu, Kazuhisa, Masami Horikoshi, Hideki Okajima, & Shunji Natori. (1983). Identification of Subunits of RNA Polymerase II from Ehrlich Ascites Tumor Cells1. The Journal of Biochemistry. 93(6). 1523–1530. 11 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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