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Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China

Zhou, D. R. and Ding, A.J. and Mao, H.T. and Fu, C. B. and Wang, T. and Chan, L.Y. and Ding, K. and Zhang, Y. and Liu, J. and Lu, A. and Hao, N. (2013) Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China. Environmental Research Letters, 8 (044011), pp. 1-7. Institute of Physics (IOP) Publishing. doi: 10.1088/1748-9326/8/4/044011. ISSN 1748-9326.

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Official URL: http://iopscience.iop.org/1748-9326/8/4/044011


The impact of the East Asian monsoon (EAM) on climatology and interannual variability of tropospheric ozone (O3) over the coastal South China was investigated by analyzing 11 years of ozonesonde data over Hong Kong with the aid of Lagrangian dispersion modeling of carbon monoxide and calculation of an EAM index. It was found that the seasonal cycle of O3 in the lower troposphere is highly related to the EAM over the study region. Ozone enhancements in the free troposphere are associated with the monsoon-induced transport of pollutants of continental anthropogenic and biomass burning origins. Lower tropospheric O3 levels showed high interannual variability, with an annual averaged amplitude up to 61% of averaged concentrations in the boundary layer (0–1 km altitudes) and 49% below 3 km altitude. In spring and autumn, the interannual variability in boundary layer O3 levels was predominately influenced by the EAM intensity, with high O3 mixing ratios associated with northeasterly circulation anomalies.

Item URL in elib:https://elib.dlr.de/87498/
Document Type:Article
Title:Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Zhou, D. R.Nanjing UniversityUNSPECIFIED
Ding, A.J.Nanjing UniversityUNSPECIFIED
Mao, H.T.Nanjing UniversityUNSPECIFIED
Fu, C. B.Nanjing UniversityUNSPECIFIED
Wang, T.The Hongkong Polytechnic UniversityUNSPECIFIED
Chan, L.Y.The Hongkong Polytechnic UniversityUNSPECIFIED
Ding, K.Nanjing UniversityUNSPECIFIED
Zhang, Y.Nanjing UniversityUNSPECIFIED
Liu, J.Nanjing UniversityUNSPECIFIED
Lu, A.University of CaliforniaUNSPECIFIED
Hao, N.IMF-AP, German Aerospace Center (DLR)UNSPECIFIED
Date:23 October 2013
Journal or Publication Title:Environmental Research Letters
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Page Range:pp. 1-7
Publisher:Institute of Physics (IOP) Publishing
Keywords:tropospheric ozone, Asian monsoon, climatology, interannual variability
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - Vorhaben Entwicklung von Atmosphärenprozessoren (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Hao, Dr. Nan
Deposited On:22 Jan 2014 17:57
Last Modified:08 Mar 2018 18:53

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