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Sudden increase in the total ozone density due to secondary ozone peaks and its effect on total ozone trends over Korea

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Title
Sudden increase in the total ozone density due to secondary ozone peaks and its effect on total ozone trends over Korea
Author
Park, Sang SeoKim, JhoonCho, Hi KuLee, HanlimLee, YeonjooMiyagawa, Koji
Issue Date
2012-02
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
ATMOSPHERIC ENVIRONMENT, v.47, pp.226 - 235
Abstract
Total column ozone (TCO) amounts observed by the Dobson spectrophotometer from 1985 to 2008 in Seoul and vertical ozone profiles obtained with the ozonesonde from 1995 to 2007 in Pohang were used to investigate the relationship between the occurrence of Secondary Ozone Peak (SOP) in the Upper Troposphere/Lower Stratosphere (UT/LS) layer and the enhancement in TCO over the Korean Peninsula. Based on Hybrid Single-Particle, Lagrangian Integrated Trajectory (HYSPLIT) simulations, the advection of a northern mid-latitudinal ozone-rich airmass from the northwest is closely related to SOP occurrences, which consequently lead to enhancements in the amount of ozone in both the UT/LS and the total column at stations in Korea. In addition, both the frequency of the northwesterly advection and the northern mid-latitudinal ozone amount are revealed to affect the amount of ozone in the UT/LS and total column by up to 7 DU. The relationship between the SOP occurrence frequency and the long-term TCO trend was investigated with observed data collected in all seasons. The UT/LS ozone enhancements, which are largely affected by SOP occurrences, are considered to be positively related to the TCO trend from 1985 to 2008 over the Korean Peninsula.
URI
https://scholarworks.unist.ac.kr/handle/201301/27323
URL
https://www.sciencedirect.com/science/article/pii/S1352231011011745?via%3Dihub
DOI
10.1016/j.atmosenv.2011.11.011
ISSN
1352-2310
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