Simple model for estimating dry deposition velocity of ozone and its destruction in a polluted nocturnal boundary layer

Ching Ho Lin, Chin Hsing Lai, Yee-Lin Wu, Ming Jen Chen

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

Determining the destructions of both ozone and odd oxygen, Ox, in the nocturnal boundary layer (NBL) is important to evaluate the regional ozone budget and overnight ozone accumulation. This work develops a simple method to determine the dry deposition velocity of ozone and its destruction at a polluted nocturnal boundary layer. The destruction of Ox can also be determined simultaneously. The method is based on O3 and NO2 profiles and their surface measurements. Linkages between the dry deposition velocities of O3 and NO2 and between the dry deposition loss of Ox and its chemical loss are constructed and used. Field measurements are made at an agricultural site to demonstrate the application of the model. The model estimated nocturnal O3 dry deposition velocities from 0.13 to 0.19 cm s-1, very close to those previously obtained for similar land types. Additionally, dry deposition and chemical reactions account for 60 and 40% of the overall nocturnal ozone loss, respectively; ozone dry deposition accounts for 50% of the overall nocturnal loss of Ox, dry deposition of NO2 accounts for another 20%, and chemical reactions account for the remaining 30%. The proposed method enables the use of measurements made in typical ozone field studies to evaluate various nocturnal destructions of O3 and Ox in a polluted environment.

原文English
頁(從 - 到)4364-4371
頁數8
期刊Atmospheric Environment
44
發行號35
DOIs
出版狀態Published - 2010 11月 1

All Science Journal Classification (ASJC) codes

  • 環境科學 (全部)
  • 大氣科學

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