气候变化领域集成服务门户(CCPortal): Constraining the relationships between aerosol height; aerosol optical depth and total column trace gas measurements using remote sensing and models

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DOI	10.5194/acp-20-15401-2020
	Constraining the relationships between aerosol height; aerosol optical depth and total column trace gas measurements using remote sensing and models
	Wang S.; Blake Cohen J.; Lin C.; Deng W.
发表日期	2020
ISSN	1680-7316
起始页码	15401
结束页码	15426
卷号	20 期号:23
英文摘要	Proper quantification of the aerosol vertical height is essential to constrain the atmospheric distribution and lifetime of aerosols, as well as their impact on the environment. We use globally distributed, daily averaged measurements of aerosol stereo heights of fire aerosols from the Multi-angle Imaging SpectroRadiometer (MISR) to understand the aerosol distribution. We also connect these results with a simple plume rise model and a new multi-linear regression model approach based on daily measurements of NO2 from OMI and CO from MOPITT to understand and model the global aerosol vertical height profile over biomass burning regions. First, plumes associated with the local dry-burning season at midlatitudes to high latitudes frequently have a substantial fraction lofted into the free troposphere and in some cases even the stratosphere. Second, plumes mainly associated with less-polluted regions in developing countries and heavily forested areas tend to stay closer to the ground, although they are not always uniformly distributed throughout the boundary layer. Third, plumes associated with more serious loadings of pollution (such as in Africa, Southeast Asia and northeast China) tend to have a substantial amount of smoke transported uniformly through the planetary boundary layer and up to around 3 km. Fourth, the regression model approach yields a better ability to reproduce the measured heights compared to the plume rise model approach. This improvement is based on a removal of the negative bias observed from the plume model approach, as well as a better ability to work under more heavily polluted conditions. However, over many regions, both approaches fail, requiring deeper work to understand the physical, chemical and dynamical reasons underlying the failure over these regions. © Author(s) 2020.
英文关键词	aerosol property; atmospheric plume; measurement method; optical depth; radiometer; regression analysis; remote sensing; trace element
语种	英语
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168889
作者单位	School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, 519000, China; Southern Marine Science and Engineering Guangdong Laboratory, Zhuhai, 519000, China
推荐引用方式 GB/T 7714	Wang S.,Blake Cohen J.,Lin C.,et al. Constraining the relationships between aerosol height; aerosol optical depth and total column trace gas measurements using remote sensing and models[J],2020,20(23).
APA	Wang S.,Blake Cohen J.,Lin C.,&Deng W..(2020).Constraining the relationships between aerosol height; aerosol optical depth and total column trace gas measurements using remote sensing and models.Atmospheric Chemistry and Physics,20(23).
MLA	Wang S.,et al."Constraining the relationships between aerosol height; aerosol optical depth and total column trace gas measurements using remote sensing and models".Atmospheric Chemistry and Physics 20.23(2020).