Variations of surface ozone at Ieodo Ocean Research Station in the East China Sea and the influence of Asian outflows SCIE SCOPUS

Cited 10 time in WEB OF SCIENCE Cited 9 time in Scopus
Title
Variations of surface ozone at Ieodo Ocean Research Station in the East China Sea and the influence of Asian outflows
Author(s)
Han, J.; Shin, B.; Lee, M.; Hwang, G.; Kim, J.; Shim, J.; Lee, G.; Shim, C.
KIOST Author(s)
Shim, Jae Seol(심재설)
Publication Year
2015
Abstract
Ieodo Ocean Research Station (IORS), a research tower (similar to 40 m a.s.l.) for atmospheric and oceanographic observations, is located in the East China Sea (32.07 degrees N, 125.10 degrees E). The IORS is almost equidistant from South Korea, China, and Japan and, therefore, it is an ideal place to observe Asian outflows without local emission effects. The seasonal variation of ozone was distinct, with a minimum in August (37 ppbv) and two peaks in April and October (62 ppbv), and was largely affected by the seasonal wind pattern over east Asia. At IORS, six types of air masses were distinguished with different levels of O-3 concentrations by the cluster analysis of backward trajectories. Marine air masses from the Pacific Ocean represent a relatively clean background air with a lowest ozone level of 32 ppbv, which was most frequently observed in summer (July-August). In spring (March-April) and winter (December-February), the influence of Chinese outflows was dominant with higher ozone concentrations of 62 and 49 ppbv, respectively. This study confirms that the influence of Chinese outflows was the main factor determining O-3 levels at IORS and its extent was dependent on meteorological state, particularly at a long-term scale.
ISSN
1680-7316
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/2619
DOI
10.5194/acp-15-12611-2015
Bibliographic Citation
ATMOSPHERIC CHEMISTRY AND PHYSICS, v.15, no.21, pp.12611 - 12621, 2015
Publisher
COPERNICUS GESELLSCHAFT MBH
Subject
MARINE BOUNDARY-LAYER; LONG-RANGE TRANSPORT; AIR-POLLUTION; LATITUDINAL GRADIENT; WESTERN PACIFIC; NORTH-AMERICA; AMBIENT OZONE; SATELLITE; CO; VARIABILITY
Type
Article
Language
English
Document Type
Article
Publisher
COPERNICUS GESELLSCHAFT MBH
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