Masao Iwai

1.6k total citations
23 papers, 238 citations indexed

About

Masao Iwai is a scholar working on Atmospheric Science, Ecology and Oceanography. According to data from OpenAlex, Masao Iwai has authored 23 papers receiving a total of 238 indexed citations (citations by other indexed papers that have themselves been cited), including 17 papers in Atmospheric Science, 7 papers in Ecology and 6 papers in Oceanography. Recurrent topics in Masao Iwai's work include Geology and Paleoclimatology Research (17 papers), Paleontology and Stratigraphy of Fossils (5 papers) and earthquake and tectonic studies (5 papers). Masao Iwai is often cited by papers focused on Geology and Paleoclimatology Research (17 papers), Paleontology and Stratigraphy of Fossils (5 papers) and earthquake and tectonic studies (5 papers). Masao Iwai collaborates with scholars based in Japan, United States and United Kingdom. Masao Iwai's co-authors include Philip J. Bart, Isao Motoyama, Hiroshi Nishi, Toshiaki Irizuki, Tomohiko Suzuki, Carlota Escutia, Yasuo Kondo, Tina van de Flierdt, F.J. Jiménez-Espejo and Benedict Reinardy and has published in prestigious journals such as Earth and Planetary Science Letters, Quaternary Science Reviews and Palaeogeography Palaeoclimatology Palaeoecology.

In The Last Decade

Masao Iwai

23 papers receiving 228 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Masao Iwai Japan 10 167 81 54 47 39 23 238
Rosemary Cody New Zealand 7 231 1.4× 80 1.0× 49 0.9× 103 2.2× 18 0.5× 7 251
Joseph G. Prebble New Zealand 12 260 1.6× 116 1.4× 69 1.3× 89 1.9× 17 0.4× 23 319
Christopher D. Clowes New Zealand 11 211 1.3× 51 0.6× 42 0.8× 103 2.2× 79 2.0× 19 304
Lineth Contreras Netherlands 3 201 1.2× 68 0.8× 53 1.0× 122 2.6× 11 0.3× 4 310
M. C. G. Mabin Australia 11 285 1.7× 173 2.1× 40 0.7× 57 1.2× 17 0.4× 18 369
Emma P. Hocking United Kingdom 9 309 1.9× 135 1.7× 40 0.7× 32 0.7× 125 3.2× 23 394
Henrike Baumgarten Germany 6 214 1.3× 71 0.9× 81 1.5× 55 1.2× 37 0.9× 8 247
Anna Ludikova Russia 10 248 1.5× 102 1.3× 133 2.5× 56 1.2× 13 0.3× 52 358
Courtney Warren United States 3 218 1.3× 83 1.0× 65 1.2× 67 1.4× 12 0.3× 3 251
Fred M. Weaver United States 7 238 1.4× 79 1.0× 51 0.9× 102 2.2× 46 1.2× 14 295

Countries citing papers authored by Masao Iwai

Since Specialization
Citations

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

Fields of papers citing papers by Masao Iwai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Masao Iwai

This figure shows the co-authorship network connecting the top 25 collaborators of Masao Iwai. A scholar is included among the top collaborators of Masao Iwai 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 Masao Iwai. Masao Iwai 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.
Iwai, Masao, Isao Motoyama, Weiren Lin, et al.. (2025). Diatom and Radiolarian Biostratigraphy in the Vicinity of the 2011 Tohoku Earthquake Source Fault in IODP Hole 343‐ C0019E of JFAST. Island Arc. 34(1). 1 indexed citations
2.
3.
Iwatani, Hokuto, Yasuo Kondo, Toshiaki Irizuki, Masao Iwai, & Minoru Ikehara. (2016). Orbital obliquity cycles recorded in Kuroshio Current region, eastern Asia, around Plio–Pleistocene boundary. Quaternary Science Reviews. 140. 67–74. 5 indexed citations
4.
Reinardy, Benedict, Carlota Escutia, Masao Iwai, et al.. (2015). Repeated advance and retreat of the East Antarctic Ice Sheet on the continental shelf during the early Pliocene warm period. Palaeogeography Palaeoclimatology Palaeoecology. 422. 65–84. 18 indexed citations
5.
Tauxe, Lisa, Saiko T. Sugisaki, F.J. Jiménez-Espejo, et al.. (2015). Geology of the Wilkes land sub-basin and stability of the East Antarctic Ice Sheet: Insights from rock magnetism at IODP Site U1361. Earth and Planetary Science Letters. 412. 61–69. 9 indexed citations
6.
Iwai, Masao, Benedict Reinardy, & Carlota Escutia. (2014). Diatom age assignment at IODP Site U1358 on the continental shelf off the Adelie Coast, Antarctica. EGU General Assembly Conference Abstracts. 9804. 1 indexed citations
7.
Irizuki, Toshiaki, et al.. (2013). A study on the utility of ultrasonic treatment for preparing fossil diatom slides. The Quaternary Research (Daiyonki-Kenkyu). 52(5). 213–224. 2 indexed citations
8.
9.
Motoyama, Isao, et al.. (2009). Evolution of Eastern Pacific Warm Pool and upwelling processes since the middle Miocene based on analysis of radiolarian assemblages: Response to Indonesian and Central American Seaways. Palaeogeography Palaeoclimatology Palaeoecology. 280(3-4). 469–479. 28 indexed citations
10.
Uda, Kouji, K. Yamamoto, Nozomu Iwasaki, et al.. (2008). Two-domain arginine kinase from the deep-sea clam Calyptogena kaikoi—Evidence of two active domains. Comparative Biochemistry and Physiology Part B Biochemistry and Molecular Biology. 151(2). 176–182. 18 indexed citations
11.
Kondo, Yasuo, Masao Iwai, & Kazuto Kodama. (2006). Muroto Project: Scientifi c Drilling of the Late Pliocene Forearc Basin Deposit on the West Coast of Muroto Peninsula, Shikoku, Japan. Scientific Drilling. 3. 38–39. 3 indexed citations
12.
Iwai, Masao, Yasuo Kondo, Naoki Kikuchi, & Motoyoshi Oda. (2006). Overview of stratigraphy and paleontology of Pliocene Tonohama Group, Kochi Prefecture, southwest Japan. The Journal of the Geological Society of Japan. 112(Supplement). S27–S40. 5 indexed citations
13.
Kondo, Yasuo, Masao Iwai, & Kazuto Kodama. (2006). Muroto Project: Scientific Drilling of the Late Pliocene Forearc Basin Deposit on the West Coast of Muroto Peninsula, Shikoku, Japan. Scientific Drilling. 2 indexed citations
14.
Moriwaki, Hiroshi, Yoshiaki Matsushima, Hiroshi Machida, et al.. (2002). Holocene Geomorphic Evolution around the Aira Caldera, South Japan.. The Quaternary Research (Daiyonki-Kenkyu). 41(4). 253–268. 8 indexed citations
15.
Harada, Naomi, Masao Uchida, Toshio Nakamura, et al.. (2002). Is amino acid chronology applicable to the estimation of the geological age of siliceous sediments?. Earth and Planetary Science Letters. 198(3-4). 257–266. 2 indexed citations
16.
Suzuki, Tomohiko, et al.. (2000). Isolation and cDNA-derived amino acid sequences of hemoglobin and myoglobin from the deep-sea clam Calyptogena kaikoi. Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology. 1478(1). 152–158. 17 indexed citations
17.
Harada, Naomi, et al.. (2000). General features of cored sediments collected in the northwestern area of the North Pacific during the MR98-05(R/V MIRAI) cruise. Medical Entomology and Zoology. 113–124. 5 indexed citations
18.
Irizuki, Toshiaki, et al.. (1999). Diatom zonal key species and geologic ages of the Miocene Morozaki, Iwamura and Tomikusa Groups in the First Setouchi Province, central Japan.. The Journal of the Geological Society of Japan. 105(2). 152–155. 27 indexed citations
19.
Nomura, Ritsuo, Koji Seto, Hiroshi Nishi, et al.. (1997). Environment changes recorded in the Himalayan Range and Indian Ocean. Cenozoic paleoceanography in the Indian Ocean: Paleoceanographic biotic and abiotic changes before the development of monsoon system.. The Journal of the Geological Society of Japan. 103(3). 280–303. 4 indexed citations
20.
Iwai, Masao, et al.. (1992). The effect of lipo-prostaglandin E1 on canine femoral arterial allografts.. PubMed. 24(4). 1360–2. 1 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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