Articles | Volume 19, issue 13
Research article
08 Jul 2019
Research article |  | 08 Jul 2019

The 2015 and 2016 wintertime air pollution in China: SO2 emission changes derived from a WRF-Chem/EnKF coupled data assimilation system

Dan Chen, Zhiquan Liu, Junmei Ban, and Min Chen


Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by D. Chen on behalf of the Authors (30 Apr 2019)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (16 May 2019) by Andrea Pozzer
RR by Anonymous Referee #1 (28 May 2019)
ED: Publish subject to minor revisions (review by editor) (28 May 2019) by Andrea Pozzer
AR by D. Chen on behalf of the Authors (06 Jun 2019)  Author's response    Manuscript
ED: Publish as is (07 Jun 2019) by Andrea Pozzer
Short summary
We updated the WRF/Chem-EnKF DA system to quantitatively estimate SO2 emissions using hourly surface observations as constraints. The 2010 MEIC prior emissions were used to generate January 2015 and 2016 analyzed emissions, which revealed inhomogeneous SO2 emission changes for northern, western, and southern China. These changes were related to facts in reality, indicating that the updated DA system was capable of detecting emission deficiencies and optimizing emissions.
Final-revised paper