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Researcher · University of Oslo · Norway

Claus J. Nielsen

Claus J. Nielsen publishes mostly in Atmospheric Science, Spectroscopy and Organic Chemistry, on topics such as Atmospheric chemistry and aerosols, Atmospheric Ozone and Climate and Molecular Spectroscopy and Structure.

ORCID 0000-0002-2962-2634 OpenAlex
World rank
#118,799
of 1,633,909 ranked researchers
Rank in Norway
#576
of 6,482
Works
109
Citations
681
Citations per work
6.2

What does Claus J. Nielsen research?

Atmospheric Science: 13.3%Spectroscopy: 10.0%Organic Chemistry: 10.0%Electrical and Electronic Engineering: 8.0%other fields: 58.7%13%top field
Atmospheric Science13.3%Spectroscopy10.0%Organic Chemistry10.0%Electrical and Electronic Engineering8.0%other fields58.7%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Atmospheric Science13% of their works
  2. 2Spectroscopy10% of their works
  3. 3Organic Chemistry10% of their works
  4. 4Electrical and Electronic Engineering8% of their works
  5. 5Global and Planetary Change6% of their works
  6. 6Oceanography5% of their works

Research topics

Which keywords describe Claus J. Nielsen's research?

The keywords of their largest research topics: Ecosystem Functioning, Atmospheric Aerosols, Black Carbon, Ozone Depletion, Stratospheric Water Vapor, Molecular Structure, Rotational Spectroscopy and Cnidarian Evolution.

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. Ecosystem Functioning112 topics
  2. Atmospheric Aerosols101 topic
  3. Black Carbon101 topic
  4. Ozone Depletion91 topic
  5. Stratospheric Water Vapor91 topic
  6. Molecular Structure71 topic
  7. Rotational Spectroscopy71 topic
  8. Cnidarian Evolution61 topic
  9. Deep-Sea Ecology61 topic
  10. Enthalpies61 topic
  11. Jellyfish Blooms61 topic
  12. Marine Biodiversity61 topic
  13. Vaporization61 topic
  14. Biodiversity51 topic
  15. Density Functional Theory51 topic
  16. Dispersion Correction51 topic
  17. Marine Invasions51 topic

Where does Claus J. Nielsen work?

Claus J. Nielsen's main affiliation in the publication record is University of Oslo, Norway.

How many publications and citations does Claus J. Nielsen have?

Science Explorer counts 109 works and 681 citations for Claus J. Nielsen, ranking #118,799 of 1,633,909 researchers worldwide on the composite 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 are in the interactive view on the map. Is this your page? Request a correction or removal.