Long-term trends of surface ozone and its influencing factors at the Mt  Waliguan GAW station, China – Part 1: Overall trends and characteristics

Xu, Wanyun; Lin, Weili; Xu, Xiaobin; Tang, Jie; Huang, Jianqing; Wu, Hao; Zhang, Xiaochun

doi:https://doi.org/10.5194/acp-16-6191-2016

Articles | Volume 16, issue 10

https://doi.org/10.5194/acp-16-6191-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Special issue:

Study of ozone, aerosols and radiation over the Tibetan Plateau...

https://doi.org/10.5194/acp-16-6191-2016

© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 16, issue 10

Research article

|

20 May 2016

Research article |

| 20 May 2016

Long-term trends of surface ozone and its influencing factors at the Mt Waliguan GAW station, China – Part 1: Overall trends and characteristics

Wanyun Xu, Weili Lin, Xiaobin Xu, Jie Tang, Jianqing Huang, Hao Wu, and Xiaochun Zhang

Data sets

O3 Mt. Waliguan - CMA World Data Center for Greenhouse Gases http://ds.data.jma.go.jp/gmd/wdcgg/cgi-bin/wdcgg/download.cgi?index=WLG236N00-CMA&param=201405120001&select=inventory

Short summary

Long-term characteristics and trends of baseline surface ozone concentration at Waliguan station in western China for the period of 1994 to 2013 were analysed, using a modified Mann–Kendall test and the Hilbert–Huang transform analysis for the trend and periodicity analysis, respectively. Significant increasing trends were detected in all seasons, except for summer. The non-linearity caused by the interannual variation of ozone concentrations is evident, showing a 2–4-year, 7- and 11-year periodicity.