DOI: 10.1002/grl.50894
论文题名: Constraints on surface NOx emissions by assimilating satellite observations of multiple species
作者: Miyazaki K. ; Eskes H.
刊名: Geophysical Research Letters
ISSN: 0094-8605
EISSN: 1944-8336
出版年: 2013
卷: 40, 期: 17 起始页码: 4745
结束页码: 4750
语种: 英语
英文关键词: Data assimilation
; Emissions
; Nitrogen oxides
Scopus关键词: Chemical transport models
; Data assimilation
; Emission inventories
; Model chemistry
; Multiple species
; Satellite observations
; Satellite retrieval
; Total emissions
; Nitrogen compounds
; Nitrogen oxides
; Particulate emissions
; Uncertainty analysis
; data assimilation
; emission inventory
; nitric oxide
; nitrogen cycle
; satellite data
; satellite imagery
英文摘要: Surface NOx emissions are estimated by a combined assimilation of satellite observations of NO2, CO, O3, and HNO 3 with a global chemical transport model. The assimilation of measurements for species other than NO2 provides additional constraints on the NOx emissions by adjusting the concentrations of the species affecting the NOx chemistry and leads to changes in the regional monthly-mean emissions of -58 to +32% and the annual total emissions of -16 to +3%. These large changes highlight that uncertainties in the model chemistry impact the quality of the emission estimates. In the inversion from NO2 observations only, NOx analysis increments occur closer to the surface. Because of the shorter residence time, larger emissions increments are required compared to the multiple species assimilation. Validation against independent observations and comparisons with the recent Regional Emission inventory in Asia version 2.1 emissions shows that the multiple species assimilation improves the chemical consistency including the relation between concentrations and the estimated emissions. Key Points Multi-species satellite retrievals are assimilated Non-NO2 measurements place additional constraints on NOx emissions Improved consistency of the concentrations and the estimated emissions ©2013. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84883539420&doi=10.1002%2fgrl.50894&partnerID=40&md5=abb72428e966463c013455f7735b67eb
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/5869
Appears in Collections: 气候减缓与适应
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作者单位: Japan Agency for Marine-Earth Science and Technology, 3173-25 Showa-machi, Kanazawa-ku, Yokohama, Kanagawa 236-0001, Japan
Recommended Citation:
Miyazaki K.,Eskes H.. Constraints on surface NOx emissions by assimilating satellite observations of multiple species[J]. Geophysical Research Letters,2013-01-01,40(17).