气候变化领域集成服务门户(CCPortal): Evaluating and improving the sand storm numerical simulation performance in Northwestern China using WRF-Chem and remote sensing soil moisture data

CCPortal

DOI	10.1016/j.atmosres.2020.105411
	Evaluating and improving the sand storm numerical simulation performance in Northwestern China using WRF-Chem and remote sensing soil moisture data
	Han, Tian; Pan, Xiaoduo; Wang, Xufeng
通讯作者	Pan, XD (通讯作者)，Chinese Acad Sci, Inst Tibetan Plateau Res, Natl Tibetan Plateau Data Ctr, Beijing 100101, Peoples R China.
发表日期	2021
ISSN	0169-8095
EISSN	1873-2895
卷号	251
英文摘要	This paper aims to test the ability of the WRF-Chem model to simulate sand storms in Northwest China and improve the simulation results by introducing remote sensing soil moisture data into WRF-Chem. We conducted sensitivity tests, including parameterization scheme tests and soil moisture tests using WRF-Chem. By comparing various combinations of parameterization schemes, which have considerable impacts on sand emissions, the most suitable parameterization scheme for WRF-Chem to simulate sand storms in Northwest China was selected for establishing models in future research. Based on the optimal combination of parameterization schemes, the sensitivity of sand emissions to soil moisture was tested, indicating that soil moisture has a substantial influence on sand emissions and revealing a nonlinear relationship between sand emissions and soil moisture. Although sand simulations are sensitive to soil moisture, the sand emission volume does not always increase with decreasing soil moisture content. Moreover, the soil moisture content simulated by WRF-Chem is quite different from that observed by satellites. Therefore, we selected ten sand storms that occurred in Northwest China in 2009-2018, including weak, moderate and strong sand storms, to explore the responses of sand storms of different intensities to soil moisture. Some experiments were conducted in two scenarios: scenario A was simulated only by WRF-Chem, and scenario B was designed by replacing the initial soil moisture field in WRF-Chem with soil moisture satellite data from AMSR2 and AMSR-E. Comparing the simulation results with in-situ ground-based and satellite-based measurements indicates that WRF-Chem can capture strong sand storms and some moderate sand storms, but the ability to simulate weak sand storms needs to be greatly improved. After introducing remote sensing soil moisture data into WRF-Chem, the simulation of sand emissions becomes more accurate, substantially improving the simulation results. Among the ten simulated sand storms, the AOD (aerosol optical depth) and PM10 simulation accuracies are improved for five and seven sand storms, respectively. After this improvement, the AOD correlation coefficient can reach 0.63, and the PM10 correlation coefficient can reach 0.60.
关键词	DUST EMISSION OPTICAL-PROPERTIES MODEL ASIA SENSITIVITY DEPOSITION CHEMISTRY TRANSPORT DESERT PM10
英文关键词	Soil moisture; Sand storms; Himawari-8; MODIS; WRF-Chem; PM10; AOD
语种	英语
WOS研究方向	Meteorology & Atmospheric Sciences
WOS类目	Meteorology & Atmospheric Sciences
WOS记录号	WOS:000612175000004
来源期刊	ATMOSPHERIC RESEARCH
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254617
作者单位	[Han, Tian; Wang, Xufeng] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lab Remote Sensing & Geospatial Sci, Lanzhou 730000, Peoples R China; [Han, Tian] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Pan, Xiaoduo] Chinese Acad Sci, Inst Tibetan Plateau Res, Natl Tibetan Plateau Data Ctr, Beijing 100101, Peoples R China
推荐引用方式 GB/T 7714	Han, Tian,Pan, Xiaoduo,Wang, Xufeng. Evaluating and improving the sand storm numerical simulation performance in Northwestern China using WRF-Chem and remote sensing soil moisture data[J]. 中国科学院西北生态环境资源研究院,2021,251.
APA	Han, Tian,Pan, Xiaoduo,&Wang, Xufeng.(2021).Evaluating and improving the sand storm numerical simulation performance in Northwestern China using WRF-Chem and remote sensing soil moisture data.ATMOSPHERIC RESEARCH,251.
MLA	Han, Tian,et al."Evaluating and improving the sand storm numerical simulation performance in Northwestern China using WRF-Chem and remote sensing soil moisture data".ATMOSPHERIC RESEARCH 251(2021).