Role of atmospheric circulations in haze pollution in December 2016

Yin, Zhicong; Wang, Huijun

doi:https://doi.org/10.5194/acp-17-11673-2017

Articles | Volume 17, issue 18

https://doi.org/10.5194/acp-17-11673-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

https://doi.org/10.5194/acp-17-11673-2017

© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.

Articles | Volume 17, issue 18

Research article

|

28 Sep 2017

Research article |

| 28 Sep 2017

Role of atmospheric circulations in haze pollution in December 2016

Zhicong Yin and Huijun Wang

Data sets

Ground observations CMA http://data.cma.cn/

EA/WR and WP indices CPC http://www.cpc.ncep.noaa.gov/data/teledoc/telecontents.shtml

PBLH data ERA-Interim http://www.ecmwf.int/en/research/climate-reanalysis/era-interim

SST data NOAA http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.ersst.v4.html

Atmospheric data NCEP/NCAR http://www.esrl.noaa.gov/psd/data/gridded/data.ncep.reanalysis.html

Snow cover data Rutgers University http://climate.rutgers.edu/snowcover/

Short summary

The number of December haze days over North China and the Huanghuai area has increased sharply since 2010 and was greatest in 2016. During 2016, the most aggressive control measures for anthropogenic emissions were implemented from 16 to 21 December, but the most severe haze pollution still occurred, covering approximately 25 % of the land area of China and lasting for 6 days. The atmospheric circulations must play critical roles in the sub-seasonal haze events.