A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
The impact of the East Asian monsoon (EAM) on climatology and interannual variability of tropospheric ozone (O _3 ) 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 O _3 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 O _3 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 O _3 levels was predominately influenced by the EAM intensity, with high O _3 mixing ratios associated with northeasterly circulation anomalies.
Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
The impact of the East Asian monsoon (EAM) on climatology and interannual variability of tropospheric ozone (O _3 ) 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 O _3 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 O _3 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 O _3 levels was predominately influenced by the EAM intensity, with high O _3 mixing ratios associated with northeasterly circulation anomalies.
Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
Derong Zhou (author) / Aijun Ding (author) / Huiting Mao (author) / Congbin Fu (author) / Tao Wang (author) / L Y Chan (author) / Ke Ding (author) / Yang Zhang (author) / Jane Liu (author) / An Lu (author)
2013
Article (Journal)
Electronic Resource
Unknown
Metadata by DOAJ is licensed under CC BY-SA 1.0
Impacts of the East Asian monsoon on lower tropospheric ozone over coastal South China
| IOP Institute of Physics | 2013
Observation of aerosol induced ‘lower tropospheric cooling’ over Indian core monsoon region
| DOAJ | 2021
La Niña-related tropospheric column ozone enhancement over East Asia
| Elsevier | 2021