Articles | Volume 19, issue 3
Atmos. Chem. Phys., 19, 1521–1535, 2019
https://doi.org/10.5194/acp-19-1521-2019
Atmos. Chem. Phys., 19, 1521–1535, 2019
https://doi.org/10.5194/acp-19-1521-2019

Research article 06 Feb 2019

Research article | 06 Feb 2019

Two pathways of how remote SST anomalies drive the interannual variability of autumnal haze days in the Beijing–Tianjin–Hebei region, China

Jing Wang et al.

Data sets

Atmospheric circulation data ECMWF https://doi.org/10.1002/qj.828

Atmospheric circulation data NCEP/NCAR https://doi.org/10.1175/1520-0477(1996)077<0437:tnyrp>2.0.co;2

Sea-surface-temperature data NOAA https://doi.org/10.1175/jcli-d-16-0836.1

Monthly precipitation data NOAA https://doi.org/10.1175/1525-7541(2002)003<0249:glpaym>2.0.co;2

Ground observations CMA https://doi.org/10.5194/acp-18-3173-2018

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Short summary
Less attention has been paid to haze weather during the autumn season. Here, we unravel the mechanism of how SST anomalies over the subtropical North Atlantic and western North Pacific drive the interannual variability of the autumnal haze days in the Beijing–Tianjin–Hebei region. The two pathways of SST anomaly forcings can result in an anticyclonic (cyclonic) anomaly over Northeast Asia, leading to a lower-level southerly (northerly) anomaly and in turn more (fewer) haze days in this region.
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