Chieko Shimada

417 citations

28 papers · 324 indexed · h-index 11

Co-authors: Yoshihiro Tanimura Yoshinori Hikida Hiromichi Hirano Shiro Hasegawa Makoto Yamasaki T. Oba Hodaka Kawahata Yuichiro Tanaka
Topics: Geology and Paleoclimatology Research (15 papers)Marine and coastal ecosystems (10 papers)Isotope Analysis in Ecology (9 papers)
Cited by: Atmospheric Science Paleontology Oceanography
Journals: Palaeogeography Palaeoclimatology Palaeoecology The Holocene Quaternary International
Partner nations: Japan United States United Kingdom

In The Last Decade

Chieko Shimada

26 papers receiving 313 citations

Peers

Countries citing papers authored by Chieko Shimada

Since Specialization

Citations

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

Fields of papers citing papers by Chieko Shimada

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Chieko Shimada

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

All Works

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20 of 20 papers shown

#	Work	Indexed citations
1	Western to Central Equatorial Pacific Planktic Foraminiferal Fluxes: Implication for the Relationship Between Their Assemblage and Warm Pool Migration from 1999 to 2002 2022 ·The Journal of Foraminiferal Research ·Makoto Yamasaki,(unknown),Akira Sasaki,Chieko Shimada,Ralf Schiebel	2
2	Late Cretaceous Diatoms (Bacillariophyta) from the Teshio-Nakagawa Area, Hokkaido, Northern Japan: Significance for Their Origin and Biostratigraphy 2022 ·Paleontological Research ·Chieko Shimada,(unknown),Robert G. Jenkins,Makoto Yamasaki,Yuichiro Tanaka,Yoshinori Hikida	3
3	Cenomanian diatoms (Bacillariophyta) from the Teshio-Nakagawa area, Hokkaido, northern Japan 2021 ·The Journal of the Geological Society of Japan ·Chieko Shimada,(unknown),Makoto Yamasaki,Yuichiro Tanaka,Yoshinori Hikida	0
4	Sr isotope ratios and diatom ages of the Neogene carbonate concretions in Akita and northern Yamagata areas, Northeast Japan 2020 ·The Journal of the Geological Society of Japan ·Osamu Nishikawa,(unknown),Chieko Shimada,Daizo Ishiyama,(unknown)	1
5	Seasonality and cell-size structure of diatoms in the Tsugaru Strait, northwest Pacific Ocean 2017 ·Medical Entomology and Zoology ·Yoshihiro Tanimura,Chieko Shimada,Hirokazu Ozawa,Katsunori Kimoto,Yuichiro Tanaka,Hiroshi Itoh	2
6	Eodelphis kabatensis, a new name for the oldest true dolphinStenella kabatensisHorikawa, 1977 (Cetacea, Odontoceti, Delphinidae), from the upper Miocene of Japan, and the phylogeny and paleobiogeography of Delphinoidea 2014 ·Journal of Vertebrate Paleontology ·(unknown),Chieko Shimada,Yoshinori Hikida,(unknown),Hiromichi Hirano	34
7	Asymmetrical Basal Delphinoid Skull from the Upper Lower Miocene Yamato Formation of Hokkaido, Northern Japan: Implications on Evolution Of Cranial Asymmetry and Symmetry in Odontoceti 2014 ·Paleontological Research ·(unknown),Chieko Shimada,Yoshinori Hikida,Hiromichi Hirano	6
8	Eodelphinus kabatensis, a replacement name forEodelphis kabatensis(Cetacea: Delphinoidea: Delphinidae) 2014 ·Journal of Vertebrate Paleontology ·(unknown),Chieko Shimada,Yoshinori Hikida,(unknown)	2
9	A new basal porpoise,Pterophocaena nishinoi(Cetacea, Odontoceti, Delphinoidea), from the upper Miocene of Japan and its phylogenetic relationships 2012 ·Journal of Vertebrate Paleontology ·(unknown),Chieko Shimada,Yoshinori Hikida,Hiromichi Hirano	30
10	Effects of nutrients on diatom skeletal silicification: Evidence from Neodenticula seminae culture experiments and morphometric analysis 2009 ·Marine Micropaleontology ·Chieko Shimada,(unknown),Yuichiro Tanaka,Makoto Yamasaki,Akira Kuwata	4
11	Paleoecological significance of laminated diatomaceous oozes during the middle-to-late Pleistocene, North Atlantic Ocean (IODP Site U1304) 2008 ·Marine Micropaleontology ·Chieko Shimada,Tokiyuki Sato,(unknown),Makoto Yamasaki,Yoshihiro Tanimura	22
12	Timing of Shell Size Increase and Decrease of the Planktic Foraminifer Neogloboquadrina pachyderma (Sinistral) During the Pleistocene, IODP Exp. 303 Site U1304, the North Atlantic Ocean 2008 ·Makoto Yamasaki,(unknown),Chieko Shimada,Shun Chiyonobu,(unknown)	9
13	Millennial-scale variability of Holocene hydrography in the southwestern Okhotsk Sea: diatom evidence 2004 ·The Holocene ·Chieko Shimada,Ken Ikehara,Yoshihiro Tanimura,Shiro Hasegawa	18
14	Calcareous dinoflagellates from a northwestern Pacific sediment trap and their paleoceanographic implications 2004 ·Micropaleontology ·Yoshihiro Tanimura,Chieko Shimada	8
15	A new index to quantify diatom dissolution levels based on a ratio of Neodenticula seminae frustule components 2003 ·Micropaleontology ·Chieko Shimada	6
16	Migration of Continental Mixed-waters Preserved in Abundance of a Diatom Species Paralia sulcata. Paleoceanography of the Northeastern East China Sea from the Last Glacial through the Postglacial. 2002 ·The Quaternary Research (Daiyonki-Kenkyu) ·Yoshihiro Tanimura,Chieko Shimada,(unknown)	20
17	Terrestrial—oceanic environmental change in the southern Okhotsk sea during the Holocene 2002 ·Quaternary International ·Hodaka Kawahata,(unknown),Chieko Shimada,T. Oba	42
18	Paleoceanographic implications of a 90,000 year long diatom record in piston core KH94-3, LM-8 off NE Japan 2001 ·Marine Micropaleontology ·Chieko Shimada,Shiro Hasegawa	10
19	Holocene Paleoceanography in the SW Part of the Sea of Okhotsk. A Diatom Record. 2000 ·The Quaternary Research (Daiyonki-Kenkyu) ·Chieko Shimada,Masafumi Murayama,Kaori Aoki,Toshio Nakamura,Shiro Hasegawa,Tadamichi Oba	16
20	Late Quaternary Paleoceanography in the Northwestern Pacific Margin Reconstructed with a Submarine Core Recovered Off Sanriku. An Approach Using Diatom Fossil Assemblage. 1999 ·The Quaternary Research (Daiyonki-Kenkyu) ·Chieko Shimada,Shiro Hasegawa	3

About Chieko Shimada

Chieko Shimada is a scholar working on Oceanography, Paleontology and Atmospheric Science, having authored 28 papers that have together received 324 indexed citations. Recurring topics across this work include Geology and Paleoclimatology Research (15 papers), Marine and coastal ecosystems (10 papers) and Isotope Analysis in Ecology (9 papers). The work is most often cited by research in Atmospheric Science (194 citations), Paleontology (73 citations) and Oceanography (118 citations). Chieko Shimada has collaborated with scholars based in Japan, United States and United Kingdom. Frequent co-authors include Yoshihiro Tanimura, Yoshinori Hikida, Hiromichi Hirano, Shiro Hasegawa, Makoto Yamasaki, T. Oba, Hodaka Kawahata, Yuichiro Tanaka, Tokiyuki Sato and Ken Ikehara. Their work appears in journals such as Palaeogeography Palaeoclimatology Palaeoecology, The Holocene and Quaternary International.

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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