Articles | Volume 17, issue 3
Atmos. Chem. Phys., 17, 1641–1651, 2017
https://doi.org/10.5194/acp-17-1641-2017
Atmos. Chem. Phys., 17, 1641–1651, 2017
https://doi.org/10.5194/acp-17-1641-2017

Research article 02 Feb 2017

Research article | 02 Feb 2017

Understanding severe winter haze events in the North China Plain in 2014: roles of climate anomalies

Zhicong Yin et al.

Data sets

China ground observation data sets CMA http://data.cma.cn/

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

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

Hadley Centre Sea Ice and Sea Surface Temperature data sets HadISST http://www.metoffice.gov.uk/hadobs/hadisst/

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

NOAA Extended Reconstructed Sea Surface Temperature (SST) V4 data sets NOAA http://www.esrl.noaa.gov/psd/data/gridded/data.noaa.ersst.v4.html

Download
Short summary
The number of winter haze days over the north-central North China Plain in 2014 was largest in the past 30 years. With the anticyclone circulation over North China taken as an intermediate, the positive phases of the east Atlantic/west Russia, western Pacific, and Eurasian patterns led to a larger number of haze days in 2014. The related external forcing included preceding autumn Arctic sea ice, winter and pre-autumn surface temperature, and pre-autumn sea surface temperature in the Pacific.
Altmetrics
Final-revised paper
Preprint