Monin-Obukhov Similarity Theory for Carbon Dioxide, Water Vapor and Vertical Wind Velocity

Nozomi Ushikawa, Toru Iwata, Takeshi Miura, Eiji Ohtaki, Akinori Ohtou, Yoshihisa Higuchi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Monin-Obukhov similarity theory for carbon dioxide (c) and water vapor (q) is investigated using data obtained over a rice field. First, the similarity theory is applied to the standard deviations of c and q. It is noticed that the standard deviations normalized by their friction concentrations show very similar stability dependence: σc/|c| = 3.0(1-7.0ζ)-1/3 and σq/|q| = 2.9(1-7.0ζ)-1/3 under unstable conditions, and σc/|c| = 3.0(1 +7.0ζ)1/3 and σq/|q| = 2.9(1 +7.0ζ)1/3 under stable conditions. This results in the situation that the correlation coefficient between c and q can be expressed as the ratio of 2.9/3.0≈ 1, where numerals of 3.0 and 2.9 are the value of the normalized standard deviation of c and q under neutral conditions.

Original languageEnglish
Pages (from-to)209-214
Number of pages6
JournalJournal of Agricultural Meteorology
Volume60
Issue number3
DOIs
Publication statusPublished - 2004

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water vapor
friction
wind speed
paddies
carbon dioxide
wind velocity
paddy field

Keywords

  • Atmospheric surface layer
  • Carbon dioxide
  • Monin-Obukhov similarity theory
  • Water vapor

ASJC Scopus subject areas

  • Agronomy and Crop Science
  • Atmospheric Science

Cite this

Monin-Obukhov Similarity Theory for Carbon Dioxide, Water Vapor and Vertical Wind Velocity. / Ushikawa, Nozomi; Iwata, Toru; Miura, Takeshi; Ohtaki, Eiji; Ohtou, Akinori; Higuchi, Yoshihisa.

In: Journal of Agricultural Meteorology, Vol. 60, No. 3, 2004, p. 209-214.

Research output: Contribution to journalArticle

Ushikawa, Nozomi ; Iwata, Toru ; Miura, Takeshi ; Ohtaki, Eiji ; Ohtou, Akinori ; Higuchi, Yoshihisa. / Monin-Obukhov Similarity Theory for Carbon Dioxide, Water Vapor and Vertical Wind Velocity. In: Journal of Agricultural Meteorology. 2004 ; Vol. 60, No. 3. pp. 209-214.
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