干旱区生态环境知识资源中心(Arid): Study on the scattering characteristics of Ka millimeter wave by dust storms

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DOI	10.1016/j.jqsrt.2021.107998
	Study on the scattering characteristics of Ka millimeter wave by dust storms
	Ming, Hu; Wang, Minzhong; Zhang, Jiantao; Wang, Yajing; Gao, Mingliang
通讯作者	Wang, MZ (corresponding author)，China Meteorol Adm, Inst Desert Meteorol, Taklimakan Desert Meteorol Field Expt Stn CMA, Urumqi 830002, Peoples R China.
来源期刊	JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER
ISSN	0022-4073
EISSN	1879-1352
出版年	2022
卷号	277
英文摘要	As to study the scattering characteristics of millimeter wave by sand particles, the integrated detection on dust storms over the Taklimakan Desert was the first time to conduct with the Ka band millimeter wave radar, the Grimm 180, the Laser Particle Size Analyzer and the visibility meter. The complex permittivity of sand particle (epsilon(m)), the probability distribution function of sand particles, the number of sand particles, the attenuation coefficient and the reflectivity factors were calculated by the observations of these instruments; moreover, the power spectrums of the dust storm, sunny day and precipitation were comparatively analyzed. The results showed that: the epsilon(m) of 35 GHz millimeter wave by sand particles is 3.0078-j0.0987. The probability distribution of sand particles conforms to lognormal distribution, with the mean of -2.352 and the standard deviation of 0.422. Furthermore, when the visibility drops from 30 0 0 to 0 m, the number of sand particles rises from 2 x 10(5) to 1 x 10(6) in L middot min(-1) and the attenuation coefficient increases from 1 to 8 dB middot km(-1). The peak and the average values of power spectrums in dust storm are lower than those in precipitation, which indicates that the scattering ability of sand particles is less than that of precipitation particles. During the dust storms, the reflectivity factors range between -40 and 20 dBZ. These findings provide theoretical basis for the further study of the scattering properties of sand particles in the future. (C) 2021 Elsevier Ltd. All rights reserved.
英文关键词	The scattering characteristics Ka millimeter wave The complex permittivity The attenuation coefficient The reflectivity factor
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000744248200009
WOS关键词	SAND ; PROPAGATION ; RADAR
WOS类目	Optics ; Spectroscopy
WOS研究方向	Optics ; Spectroscopy
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/376955
作者单位	[Ming, Hu; Wang, Yajing; Gao, Mingliang] Shandong Univ Technol, Sch Elect & Elect Engn, Zibo 255000, Peoples R China; [Wang, Minzhong; Zhang, Jiantao] China Meteorol Adm, Inst Desert Meteorol, Taklimakan Desert Meteorol Field Expt Stn CMA, Urumqi 830002, Peoples R China
推荐引用方式 GB/T 7714	Ming, Hu,Wang, Minzhong,Zhang, Jiantao,et al. Study on the scattering characteristics of Ka millimeter wave by dust storms[J],2022,277.
APA	Ming, Hu,Wang, Minzhong,Zhang, Jiantao,Wang, Yajing,&Gao, Mingliang.(2022).Study on the scattering characteristics of Ka millimeter wave by dust storms.JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER,277.
MLA	Ming, Hu,et al."Study on the scattering characteristics of Ka millimeter wave by dust storms".JOURNAL OF QUANTITATIVE SPECTROSCOPY & RADIATIVE TRANSFER 277(2022).