The Flux-Gradient Relationship of Carbon Dioxide over a Paddy Field

Sachiko Inohara, Toru Iwata, Takeshi Miura, Eiji Ohtaki, Akinori Ohtou, Yoshihisa Higuchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


To elucidate the seasonal and inter-annual variation of CO2 exchanges between the atmosphere and paddy field, the CO2 flux has been measured by the eddy correlation technique at the experimental farm of the Agricultural Faculty, Okayama University, since December in 1998. The CO2 sensor, however, does not work under rainy conditions. The improved aerodynamic technique was developed and used to fill the gap in the eddy flux data. This technique gave reasonable CO2 fluxes even on rainy days. The reliability of the technique was also confirmed by comparing CO2 fluxes with those measured by the eddy correlation technique.

Original languageEnglish
Pages (from-to)215-220
Number of pages6
JournalJournal of Agricultural Meteorology
Issue number3
Publication statusPublished - 2004
Externally publishedYes


  • Aerodynamic technique
  • Carbon dioxide
  • Eddy correlation technique
  • Flux-gradient relationship

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Atmospheric Science


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