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Researcher · Nagoya University · Japan

Keiichi Ohta

Keiichi Ohta publishes mostly in Ecology, Oceanography and Atmospheric Science, on topics such as Marine and coastal ecosystems, Isotope Analysis in Ecology and Geology and Paleoclimatology Research.

OpenAlex
World rank
#4,879,075
of 7,710,434 ranked researchers
Rank in Japan
#150,494
of 383,136
Works
68
Citations
1.1k
Citations per work
16.7
h-index
19
i10-index 28Top 26% in Ecology
Keiichi Ohta

What does Keiichi Ohta research?

Keiichi Ohta's work is mostly in Earth and Planetary Sciences (18%), Environmental Science (10%), Agricultural and Biological Sciences (6%).

Everything else: 38 works · 55.7% of their workPhysical Sciences: 23 works · 33.5% of their workEarth and Planetary Sciences: 12 works · 18.2% of their workOceanography: 7 works · 9.7% of their workAtmospheric Science: 6 works · 8.5% of their workEnvironmental Science: 7 works · 10.2% of their workEcology: 7 works · 10.2% of their workEngineering: 3 works · 5.1% of their workBiomedical Engineering: 3 works · 5.1% of their workLife Sciences: 7 works · 10.8% of their workAgricultural and Biological Sciences: 4 works · 5.7% of their workPlant Science: 4 works · 5.7% of their workBiochemistry, Genetics and Molecular Biology: 3 works · 5.1% of their workMolecular Biology: 3 works · 5.1% of their workTHEIR WORKKeiichi Ohta68works
Life Sciences11%Physical Sciences34%

Their six largest subfields, inside their fields and domains; the grey slice is everything else they publish. The interactive view splits every one of their works down to single topics.

The fields and subfields, with their numbers
  1. Everything else3855.7%
    1. Earth and Planetary Sciences1218.2%
    2. Environmental Science710.2%
    3. Engineering35.1%
    1. Agricultural and Biological Sciences45.7%
    2. Biochemistry, Genetics and Molecular Biology35.1%
  1. 1Ecology10% of their works
  2. 2Oceanography10% of their works
  3. 3Atmospheric Science8% of their works
  4. 4Plant Science6% of their works
  5. 5Molecular Biology5% of their works
  6. 6Biomedical Engineering5% of their works

Research topics

Which keywords describe Keiichi Ohta's research?

The keywords of their largest research topics: Climate Change, Dissolved Organic Matter, Eutrophication, Stable Isotopes, Trophic Position, Glacial Cycles, Paleoclimatology and Pore Structure.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 17 words, with their numbers
  1. Climate Change142 topics
  2. Dissolved Organic Matter81 topic
  3. Eutrophication81 topic
  4. Stable Isotopes71 topic
  5. Trophic Position71 topic
  6. Glacial Cycles61 topic
  7. Paleoclimatology61 topic
  8. Pore Structure61 topic
  9. Shale Gas61 topic
  10. Atmospheric Aerosols51 topic
  11. Biosynthesis51 topic
  12. Black Carbon51 topic
  13. Gallium Oxide51 topic
  14. III-Nitrides51 topic
  15. Lignans51 topic
  16. Semiconductor51 topic
  17. Semiconductors51 topic

Where does Keiichi Ohta work?

Keiichi Ohta's main affiliation in the publication record is Nagoya University, Japan.

How many publications and citations does Keiichi Ohta have?

OpenAlex counts 68 works and 1,136 citations for Keiichi Ohta, an h-index of 19, ranking #4,879,075 of 7,710,434 researchers worldwide on the quality score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Other researchers named Keiichi Ohta

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