Variations of O3 and CO in summertime at a rural site near Beijing
Item
Title (Dublin Core)
Variations of O3 and CO in summertime at a rural site near Beijing
Description (Dublin Core)
Large intra-season differences in mixing ratios of CO and O<sub>3</sub> were detected at Miyun, a rural site north of Beijing, in summer 2006. Despite an increase in mean daytime mixing ratio of CO from 500 ppbv in June to 700 ppbv in July, mean daytime O<sub>3</sub> dropped from 67 ppbv in June to 50 ppbv in July and August. The observed changes in CO and O<sub>3</sub> are attributed to the influence of the summer monsoonal circulation that develops over the North China Plain in July. Photochemical production of O<sub>3</sub> is reduced as a consequence of increased cloudiness during July and August, as indicated by the strong negative correlation observed between O<sub>3</sub> and satellite observations of cloud optical depth, with cloudiness having little effect on CO. The analysis suggests a strategy for emission controls that could be implemented in an economically efficient manner to minimize the frequency of high levels of O<sub>3</sub> during summer in Beijing.
Creator (Dublin Core)
Wang, Y.
McElroy, M. B.
Munger, J. W.
Hao, J.
Ma, H.
Nielsen, C. P.
Chen, Y.
Date (Dublin Core)
2018-01-15
Type (Dublin Core)
Text
Format (Dublin Core)
application/pdf
Identifier (Dublin Core)
10.5194/acp-8-6355-2008
https://acp.copernicus.org/articles/8/6355/2008/
Source (Dublin Core)
eISSN: 1680-7324
Language (Dublin Core)
eng
