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Researcher · Japan Organization for Metals and Energy Security (Japan) · Japan

Nobutaka Oikawa

Nobutaka Oikawa publishes mostly in Environmental Chemistry, Geophysics and Mechanics of Materials, on topics such as Methane Hydrates and Related Phenomena, Hydrocarbon exploration and reservoir analysis and Atmospheric and Environmental Gas Dynamics.

OpenAlex
World rank
#5,538,338
of 7,710,434 ranked researchers
Rank in Japan
#190,004
of 383,136
Works
17
Citations
195
Citations per work
11.5
h-index
6
i10-index 5Top 89% in Environmental Chemistry
Nobutaka Oikawa

What does Nobutaka Oikawa research?

Nobutaka Oikawa's work is mostly in Environmental Science (39%), Earth and Planetary Sciences (32%), Engineering (10%).

Physical Sciences: 14 works · 80.6% of their workEnvironmental Science: 7 works · 39.1% of their workEnvironmental Chemistry: 5 works · 29.3% of their workGlobal and Planetary Change: 2 works · 9.8% of their workEarth and Planetary Sciences: 5 works · 31.7% of their workGeophysics: 3 works · 19.5% of their workGeology: 1 works · 7.3% of their workAtmospheric Science: 1 works · 4.9% of their workEngineering: 2 works · 9.8% of their workMechanics of Materials: 2 works · 9.8% of their workEverything else: 3 works · 19.4% of their workTHEIR WORKNobutaka Oikawa17works
Physical Sciences81%

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. Environmental Science739.1%
    2. Earth and Planetary Sciences531.7%
    3. Engineering29.8%
  2. Everything else319.4%
  1. 1Environmental Chemistry29% of their works
  2. 2Geophysics20% of their works
  3. 3Mechanics of Materials10% of their works
  4. 4Global and Planetary Change10% of their works
  5. 5Geology7% of their works
  6. 6Atmospheric Science5% of their works

Research topics

Which keywords describe Nobutaka Oikawa's research?

The keywords of their largest research topics: Anaerobic, Methane Oxidation, Shale Gas, Emissions, Methane, Mudstones, Pore Structure and Full-Waveform Tomography.

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. Anaerobic121 topic
  2. Methane Oxidation121 topic
  3. Shale Gas82 topics
  4. Emissions41 topic
  5. Methane41 topic
  6. Mudstones41 topic
  7. Pore Structure41 topic
  8. Full-Waveform Tomography31 topic
  9. Seismic Waveform Inversion31 topic
  10. Cenozoic Evolution21 topic
  11. Climate Change21 topic
  12. Machine Learning21 topic
  13. Paleoclimatology21 topic
  14. Plate Tectonics21 topic
  15. Seismic Noise21 topic
  16. Seismic Signals21 topic
  17. Tomography21 topic

Where does Nobutaka Oikawa work?

Nobutaka Oikawa's main affiliation in the publication record is Japan Organization for Metals and Energy Security (Japan), Japan.

How many publications and citations does Nobutaka Oikawa have?

OpenAlex counts 17 works and 195 citations for Nobutaka Oikawa, an h-index of 6, ranking #5,538,338 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.

Papers, co-authors, who cited this work and researchers on the nearest topics have tabs of their own, above. Is this your page? Claim it with your ORCID iD, or request a correction or removal.

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