干旱区生态环境知识资源中心(Arid): A Method for Estimating the Threshold Wind Speed for Dust Emissions as a Function of Soil Moisture

Arid

DOI	10.1007/s10546-020-00500-5
	A Method for Estimating the Threshold Wind Speed for Dust Emissions as a Function of Soil Moisture
	Matsushima, Dai 1; Kimura, Reiji 2; Kurosaki, Yasunori 2; Ganzorig, Ulgiichimeg 3; Shinoda, Masato 4
通讯作者	Matsushima, Dai
来源期刊	BOUNDARY-LAYER METEOROLOGY
ISSN	0006-8314
EISSN	1573-1472
出版年	2020
卷号	175 期号:2 页码:237-257
英文摘要	A method is proposed to estimate the threshold wind speed for dust emissions as a function of soil moisture in arid regions. This method, which is applicable at the local scale, employs a model of the surface heat budget to estimate the spatial distribution of thermal inertia-derived soil moisture (TISM) and an analytical footprint model to estimate dust source areas. It incorporates readily available satellite and meteorological data. The soil moisture inside the dust source area is estimated for individual dust phenomena observed at a synoptic surface observation site, and then, together with the corresponding observed wind speed, the threshold wind speed as a function of soil moisture is found by employing the parametrization of Fecan et al. (Ann Geophys 17:149-157, 1999). This relationship represents the local dust climatology at the observation site, although the data include some outliers. The results show that readily available data for the natural environment can be used, as an alternative to wind-tunnel data, with the parametrization used to derive the threshold wind-speed relation. The derived relation indicates the TISM and wind speed at which the probability of a dust phenomenon is 10%. Moreover, the threshold wind-speed results are not sensitive to the principal footprint-model parameters. The TISM standard error of approximately 0.04 m(3) m(-3) could significantly affect the results under dry and weak-wind conditions, but this sensitivity can be avoided if the soil clay content or the soil type at the observation point is known.
英文关键词	Arid regions Footprint model SYNOP codes Thermal inertia-derived soil moisture Threshold wind speed
类型	Article
语种	英语
国家	Japan ; Mongolia
收录类别	SCI-E
WOS记录号	WOS:000511043700001
WOS关键词	THERMAL INERTIA APPROACH ; FRICTION VELOCITY ; FOOTPRINT MODEL ; DESERT STEPPE ; FLUX ; PARAMETERIZATION ; ERODIBILITY ; PREDICTION ; SALTATION ; EROSION
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
EI主题词	2020-02-04
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312821
作者单位	1.Chiba Inst Technol, Dept Civil & Environm Engn, Narashino, Chiba 2750016, Japan; 2.Tottori Univ, Arid Land Res Ctr, Tottori 6800001, Japan; 3.Mongolian Acad Sci, Inst Geog & Geoecol, Ulaanbaatar 14192, Mongolia; 4.Nagoya Univ, Grad Sch Environm Studies, Nagoya, Aichi 4648601, Japan
推荐引用方式 GB/T 7714	Matsushima, Dai,Kimura, Reiji,Kurosaki, Yasunori,et al. A Method for Estimating the Threshold Wind Speed for Dust Emissions as a Function of Soil Moisture[J],2020,175(2):237-257.
APA	Matsushima, Dai,Kimura, Reiji,Kurosaki, Yasunori,Ganzorig, Ulgiichimeg,&Shinoda, Masato.(2020).A Method for Estimating the Threshold Wind Speed for Dust Emissions as a Function of Soil Moisture.BOUNDARY-LAYER METEOROLOGY,175(2),237-257.
MLA	Matsushima, Dai,et al."A Method for Estimating the Threshold Wind Speed for Dust Emissions as a Function of Soil Moisture".BOUNDARY-LAYER METEOROLOGY 175.2(2020):237-257.