干旱区生态环境知识资源中心(Arid): Does Ground Surface Soil Aggregation Affect Transition of the Wind Speed Threshold for Saltation and Dust Emission?

Arid

DOI	10.2151/sola.2012-032
	Does Ground Surface Soil Aggregation Affect Transition of the Wind Speed Threshold for Saltation and Dust Emission?
	Ishizuka, M.1; Mikami, M.2; Yamada, Y.3; Kimura, R.4; Kurosaki, Y.4; Jugder, D.5; Gantsetseg, B.5; Cheng, Y.4; Shinoda, M.4
通讯作者	Ishizuka, M.
来源期刊	SOLA
ISSN	1349-6476
出版年	2012
卷号	8
英文摘要	A new dust observation site was built in Tsogt-Ovoo, which is located in the northern Gobi Desert in Mongolia, to clarify wind erosion processes. Ten dust events were detected from March 24 to May 4, 2012. Strong winds (greater than 20 m s(-1) at an altitude of 3 m) blew predominantly from the west. Clear relationships among wind speed, saltation and particulate matter concentrations less than 10 mu m (PM10) were detected. A transition in the wind speed threshold for saltation was observed at Julian day (JD) 111 (April 20); before JD 111, the threshold was 14.0 m s(-1), but it decreased to 8.8 m s(-1) after JD 111. We discuss the reason for this threshold discontinuity, focusing on the ground surface conditions. It is hypothesized that this discontinuity is caused by the destruction of the surface soil aggregation.
类型	Article
语种	英语
国家	Japan ; Mongolia
收录类别	SCI-E
WOS记录号	WOS:000312593500008
WOS关键词	GRASSLANDS
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/2XILL650/175079
作者单位	1.Kagawa Univ, Takamatsu, Kagawa 7610396, Japan; 2.Meteorol Res Inst, Tsukuba, Ibaraki 305, Japan; 3.RIKEN, Wako, Saitama, Japan; 4.Tottori Univ, Arid Land Res Ctr, Tottori 680, Japan; 5.Inst Meteorol Hydrol & Environm, Ulaanbaatar, Mongolia
推荐引用方式 GB/T 7714	Ishizuka, M.,Mikami, M.,Yamada, Y.,et al. Does Ground Surface Soil Aggregation Affect Transition of the Wind Speed Threshold for Saltation and Dust Emission?[J],2012,8.
APA	Ishizuka, M..,Mikami, M..,Yamada, Y..,Kimura, R..,Kurosaki, Y..,...&Shinoda, M..(2012).Does Ground Surface Soil Aggregation Affect Transition of the Wind Speed Threshold for Saltation and Dust Emission?.SOLA,8.
MLA	Ishizuka, M.,et al."Does Ground Surface Soil Aggregation Affect Transition of the Wind Speed Threshold for Saltation and Dust Emission?".SOLA 8(2012).