Estimating emission of SF6 in China by atmospheric observation data and inverse modeling

Xingqin An, Bo Yao, Yan Li, Lingxi Zhou*, Zhao Liu, Shixia Zhai

*Corresponding author for this work

Research output: Contribution to journalJournal Articlepeer-review

6 Citations (Scopus)

Abstract

SF6 is one of long-lived halogenated greenhouse gases and listed as the restricted emission species in "Kyoto Protocol". Along with the rapid economic development, SF6 emission in China is attracted more attention in the world. For the traditional "bottom-up" method for SF6 emission estimation, the requirements for high accurate and timely updated emission factors and activity data cause many problems for the use of this method. This paper presents the results on the estimation of SF6 emissions in China for the year 2009 by using the Laprange particle dispersion model of FLEXPART, based on the in-situ measurement data obtained from the Shangdianzi regional atomspheric background station (SDZ). The a-posteriori estimations of SF6 emissions in China for the year 2009 is 1.25×103 (0.53×103~1.97×103) t·a-1, which is similar to the results reported by other studies in the literatures. Compared to results with the a-priori emission, the results with the inversion emissions improved with the correlation coefficient increase from 0.37 to 0.43 and the root-mean-square (RMS) decrease by 2.64%.

Original languageEnglish
Pages (from-to)1133-1140
Number of pages8
JournalHuanjing Kexue Xuebao/Acta Scientiae Circumstantiae
Volume34
Issue number5
Publication statusPublished - May 2014
Externally publishedYes

Keywords

  • Atmospheric background station
  • Emission inversion method
  • FLEXPART model
  • Shangdianzi region

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