干旱区生态环境知识资源中心(Arid): Impact of dust radiation effect on simulations of temperature and wind

Arid

DOI	10.1016/j.atmosres.2022.106163
	Impact of dust radiation effect on simulations of temperature and wind - A case study in Taklimakan Desert
	Li, Huoqing; Wang, Chenghai
通讯作者	Li, HQ
来源期刊	ATMOSPHERIC RESEARCH
ISSN	0169-8095
EISSN	1873-2895
出版年	2022
卷号	273
英文摘要	Dust significantly influences the radiation budget by absorbing and scattering solar radiation, changing the heating/cooling rates, and reducing radiation incoming to change the atmospheric thermal and dynamics conditions, this subsequently affects the accuracy of weather forecasting itself. However, the currently operational numerical models for weather prediction systems rarely consider dust aerosol's impact. Two sets of experiments based on the Weather Research and Forecasting model coupled with chemistry (WRF-Chem) were conducted in this study to simulate a heavy dust storm (6-9 June 2020) over Taklimakan Desert while considering the radiative effects of dust (called DUST) and ignoring them (NoDUST). The simulations were associated with in-situ measurements and MODIS aerosol optical to evaluate the dust effect. The results show that the overestimation of SW radiation reduced significantly in DUST compared with NoDUST, dust-induced radiative forcing had a net warming effect on the atmosphere (47.8 W/m(2)) and a cooling effect on the surface (-62.6 W/m(2)). The surface radiation budget also improved in DUST, which accompanied the considerable reduction in SW radiation in the sensible heat flux to 57 W/m(2), which was better agree with measurements. The interactions of dust radiation significantly adjusted the stability of the boundary layer and lowered its height. Further, the verification indicated that the warm biases in the 2 m temperature and the overestimation of wind speed reduced by 20.6% and 6.6%, respectively. The atmospheric temperature and wind speed in vertical dimension layers were verified by radio-sounding, indicating that the dust radiation effect helped to alleviate forecasting bias. Thus, the effect of dust radiation should be considered in the operational weather forecasting system to improve forecasting ac-curacy, particularly in arid and semi-arid areas dust-affected.
英文关键词	WRF-Chem Dust Radiation Energy budget Weather forecasts
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000792678600003
WOS关键词	SOIL ORGANIC-CARBON ; MINERAL DUST ; ARABIAN PENINSULA ; MODELING SENSITIVITIES ; SUMMER MONSOON ; SAHARAN DUST ; PART I ; AEROSOL ; WEATHER ; LAYER
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/391952
推荐引用方式 GB/T 7714	Li, Huoqing,Wang, Chenghai. Impact of dust radiation effect on simulations of temperature and wind - A case study in Taklimakan Desert[J],2022,273.
APA	Li, Huoqing,&Wang, Chenghai.(2022).Impact of dust radiation effect on simulations of temperature and wind - A case study in Taklimakan Desert.ATMOSPHERIC RESEARCH,273.
MLA	Li, Huoqing,et al."Impact of dust radiation effect on simulations of temperature and wind - A case study in Taklimakan Desert".ATMOSPHERIC RESEARCH 273(2022).