气候变化领域集成服务门户(CCPortal): Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign

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DOI	10.5194/acp-20-10845-2020
	Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign
	Li L.; Li Z.; Chang W.; Ou Y.; Goloub P.; Li C.; Li K.; Hu Q.; Wang J.; Wendisch M.
发表日期	2020
ISSN	1680-7316
起始页码	10845
结束页码	10864
卷号	20 期号:18
英文摘要	The Taklimakan Desert is a main and continuous source of Asian dust particles causing significant direct radiative effects, which are commonly quantified by the aerosol solar radiative forcing (ASRF). To improve the accuracy of estimates of dust ASRF, the Dust Aerosol Observation-Kashi (DAO-K) campaign was carried out near the Taklimakan Desert in April 2019. The objective of the DAO-K campaign is to provide crucial parameters needed for the calculation of ASRF, such as dust optical and microphysical properties, vertical distribution, and surface albedo. The ASRF was calculated using radiative transfer (RT) simulations based on the observed aerosol parameters, additionally considering the measured atmospheric profiles and diurnal variations of surface albedo. As a result, daily average values of ASRF of 19Wm2 at the top of the atmosphere and 36Wm2 at the bottom of the atmosphere were derived from the simulations conducted during the DAO-K campaign. Furthermore, the Weather Research and Forecasting model with Chemistry (WRF-Chem), with assimilation of measurements of the aerosol optical depth and particulate matter (PM) mass concentrations of particles with aerodynamic diameter smaller than 2.5 μm (PM2:5) and 10 μm (PM10), is employed to estimate the dust ASRF for comparison. The results of the ASRF simulations (RT and WRFChem) were evaluated using ground-based downward solar irradiance measurements, which have confirmed that the RT simulations are in good agreement with simultaneous observations, whereas the WRF-Chem estimations reveal obvious discrepancies with the solar irradiance measurements. The Taklimakan Desert is a main and continuous source of Asian dust particles causing significant direct radiative effects, which are commonly quantified by the aerosol solar radiative forcing (ASRF). To improve the accuracy of estimates of dust ASRF, the Dust Aerosol Observation-Kashi (DAO-K) campaign was carried out near the Taklimakan Desert in April 2019. The objective of the DAO-K campaign is to provide crucial parameters needed for the calculation of ASRF, such as dust optical and microphysical properties, vertical distribution, and surface albedo. The ASRF was calculated using radiative transfer (RT) simulations based on the observed aerosol parameters, additionally considering the measured atmospheric profiles and diurnal variations of surface albedo. As a result, daily average values of ASRF of 19Wm2 at the top of the atmosphere and 36Wm2 at the bottom of the atmosphere were derived from the simulations conducted during the DAO-K campaign. Furthermore, the Weather Research and Forecasting model with Chemistry (WRF-Chem), with assimilation of measurements of the aerosol optical depth and particulate matter (PM) mass concentrations of particles with aerodynamic diameter smaller than 2.5 μm (PM2:5) and 10 μm (PM10), is employed to estimate the dust ASRF for comparison. The results of the ASRF simulations (RT and WRFChem) were evaluated using ground-based downward solar irradiance measurements, which have confirmed that the RT simulations are in good agreement with simultaneous observations, whereas the WRF-Chem estimations reveal obvious discrepancies with the solar irradiance measurements. © Author(s) 2020.
语种	英语
scopus关键词	aerosol; albedo; computer simulation; desert; dust; meteorology; optical depth; particulate matter; radiative forcing; radiative transfer; solar radiation; China; Taklimakan Desert; Xinjiang Uygur
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/141095
作者单位	Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing, China; Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; Laboratoire d'Optique Atmosphérique, Université de Lille 1/CNRS, Lille, France; Department of Chemical and Biochemical Engineering, University of Iowa, Iowa City, IA, United States; Leipzig Institute for Meteorology, University of Leipzig, Leipzig, Germany
推荐引用方式 GB/T 7714	Li L.,Li Z.,Chang W.,et al. Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign[J],2020,20(18).
APA	Li L..,Li Z..,Chang W..,Ou Y..,Goloub P..,...&Wendisch M..(2020).Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign.Atmospheric Chemistry and Physics,20(18).
MLA	Li L.,et al."Aerosol solar radiative forcing near the Taklimakan Desert based on radiative transfer and regional meteorological simulations during the Dust Aerosol Observation-Kashi campaign".Atmospheric Chemistry and Physics 20.18(2020).