Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL096009 |
Sector-based top-down estimates of NOx, SO2, and CO emissions in East Asia | |
Zhen Qu; Daven K. Henze; Helen M. Worden; Zhe Jiang; Benjamin Gaubert; Nicolas Theys; Wei Wang | |
2022-01-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2022 |
英文摘要 | Top-down estimates using satellite data provide important information on the sources of air pollutants. We develop a sector-based 4D-Var framework based on the GEOS-Chem adjoint model to address the impacts of co-emissions and chemical interactions on top-down emission estimates. We apply OMI NO2, OMI SO2, and MOPITT CO observations to estimate NOx, SO2, and CO emissions in East Asia during 2005-2012. Posterior evaluations with surface measurements show reduced normalized mean bias (NMB) by 7% (NO2) - 15% (SO2) and normalized mean square error (NMSE) by 8% (SO2) - 9% (NO2) compared to a species-based inversion. This new inversion captures the peak years of Chinese SO2 (2007) and NOx (2011) emissions and attributes their drivers to industry and energy activities. The CO peak in 2007 in China is driven by residential and industry emissions. In India, the inversion attributes NOx and SO2 trends mostly to energy and CO trend to residential emissions. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/345229 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Zhen Qu,Daven K. Henze,Helen M. Worden,et al. Sector-based top-down estimates of NOx, SO2, and CO emissions in East Asia[J]. Geophysical Research Letters,2022. |
APA | Zhen Qu.,Daven K. Henze.,Helen M. Worden.,Zhe Jiang.,Benjamin Gaubert.,...&Wei Wang.(2022).Sector-based top-down estimates of NOx, SO2, and CO emissions in East Asia.Geophysical Research Letters. |
MLA | Zhen Qu,et al."Sector-based top-down estimates of NOx, SO2, and CO emissions in East Asia".Geophysical Research Letters (2022). |
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