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Study of Chinese HCFC-142b emission by inverse model |
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Abstract The inversion method was used to estimate China’s HCFC-142b emission by using Lagrangian particle dispersion model FLEXPART combined with the in-situ measurement data obtained from Shangdianzi regional atmospheric background station (SDZ). The Chinese HCFC-142b emissions in 2009 and 2010 were 10.82kt/a and 15.42kt/a, accounted for 29.7% and 45.8% of the global emissions, respectively. The spatial distribution of HCFC-142b emission shows high emission rate in Beijing, Tianjin, Sichuan, Shandong and in the middle and lower reaches of the Yangtze River, in consistent with the results by bottom-up method. The correlation coefficients of concentrations simulated from inversion results was higher than those from prior input, increasing from 0.38 to 0.47 in the year of 2009, and from 0.60 to 0.65 in the year of 2010.
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Received: 04 September 2014
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