A study of the atmospheric boundary layer using radon and air pollutants as tracers

T. Kataoka, E. Yunoki, M. Shimizu, T. Mori, O. Tsukamoto, Y. Ohashi, K. Sahashi, T. Maitani, K. Miyashita, Toru Iwata, Y. Fujikawa, A. Kudo, R. H. Shaw

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Concentrations of radon 222Rn and air pollutants, meteorological parameters near the surface and vertical profiles of meteorological elements were measured at Uchio (Okayama City, Okayama Prefecture, Japan) 12 km north from the coast of the Inland Sea of Japan. In the nighttime, the 222Rn concentration increased in the case of weak winds, but did not increase as much in the case of moderate or strong winds, as had been expected. In the daytime, the 222Rn concentration held at a slightly higher than average level for the period from sunrise to about 1 100 JST. It is considered that this phenomenon is due to a period of morning calm, that is, a transition period from land breeze to sea breeze. NO, which is sensitive to traffic volume, brought information concerning advection. Oxidant concentrations, which reflect the availability of sunlight, acted in the reverse manner to 222Rn concentrations. Thus, a set of 222Rn and air pollutants could provide useful information regarding the local conditions of the atmospheric boundary layer.

Original languageEnglish
Pages (from-to)131-155
Number of pages25
JournalBoundary-Layer Meteorology
Volume101
Issue number2
DOIs
Publication statusPublished - Nov 2001

Fingerprint

radon
boundary layer
tracer
land breeze
sea breeze
inland sea
oxidant
vertical profile
advection
coast
air pollutant
city
meteorological parameter
traffic

Keywords

  • Rn concentration
  • Concentration of air pollutants
  • Inversion layer
  • Land and sea breezes
  • Mixing layer
  • Morning and evening calms

ASJC Scopus subject areas

  • Atmospheric Science

Cite this

Kataoka, T., Yunoki, E., Shimizu, M., Mori, T., Tsukamoto, O., Ohashi, Y., ... Shaw, R. H. (2001). A study of the atmospheric boundary layer using radon and air pollutants as tracers. Boundary-Layer Meteorology, 101(2), 131-155. https://doi.org/10.1023/A:1019219708361

A study of the atmospheric boundary layer using radon and air pollutants as tracers. / Kataoka, T.; Yunoki, E.; Shimizu, M.; Mori, T.; Tsukamoto, O.; Ohashi, Y.; Sahashi, K.; Maitani, T.; Miyashita, K.; Iwata, Toru; Fujikawa, Y.; Kudo, A.; Shaw, R. H.

In: Boundary-Layer Meteorology, Vol. 101, No. 2, 11.2001, p. 131-155.

Research output: Contribution to journalArticle

Kataoka, T, Yunoki, E, Shimizu, M, Mori, T, Tsukamoto, O, Ohashi, Y, Sahashi, K, Maitani, T, Miyashita, K, Iwata, T, Fujikawa, Y, Kudo, A & Shaw, RH 2001, 'A study of the atmospheric boundary layer using radon and air pollutants as tracers', Boundary-Layer Meteorology, vol. 101, no. 2, pp. 131-155. https://doi.org/10.1023/A:1019219708361
Kataoka, T. ; Yunoki, E. ; Shimizu, M. ; Mori, T. ; Tsukamoto, O. ; Ohashi, Y. ; Sahashi, K. ; Maitani, T. ; Miyashita, K. ; Iwata, Toru ; Fujikawa, Y. ; Kudo, A. ; Shaw, R. H. / A study of the atmospheric boundary layer using radon and air pollutants as tracers. In: Boundary-Layer Meteorology. 2001 ; Vol. 101, No. 2. pp. 131-155.
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