干旱区生态环境知识资源中心(Arid): Circadian Rhythm of Dune-Field Activity

Arid

DOI	10.1029/2020GL090924
	Circadian Rhythm of Dune-Field Activity
	Gunn, A.; Wanker, M.; Lancaster, N.; Edmonds, D. A.; Ewing, R. C.; Jerolmack, D. J.
通讯作者	Jerolmack, DJ (corresponding author), Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA.
来源期刊	GEOPHYSICAL RESEARCH LETTERS
ISSN	0094-8276
EISSN	1944-8007
出版年	2021
卷号	48 期号:5
英文摘要	Wind-blown sand dunes are both a consequence and a driver of climate dynamics; they arise under persistently dry and windy conditions, and are sometimes a source for airborne dust. Dune fields experience extreme daily changes in temperature, yet the role of atmospheric stability in driving sand transport and dust emission has not been established. Here, we report on an unprecedented multiscale field experiment at the White Sands Dune Field (New Mexico, USA), where by measuring wind, humidity and temperature profiles in the atmosphere concurrently with sediment transport, we demonstrate that a daily rhythm of sand and dust transport arises from nonequilibrium atmospheric boundary layer convection. A global analysis of 45 dune fields confirms the connection found in situ between surface wind speed and diurnal temperature cycles, revealing an unrecognized climate feedback that may contribute to the growth of deserts on Earth and dune activity on Mars.
英文关键词	aeolian atmospheric boundary layer dune fields geomorphology
类型	Article
语种	英语
开放获取类型	Green Submitted
收录类别	SCI-E
WOS记录号	WOS:000627892100070
WOS类目	Geosciences, Multidisciplinary
WOS研究方向	Geology
来源机构	Desert Research Institute
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350421
作者单位	[Gunn, A.; Jerolmack, D. J.] Univ Penn, Dept Earth & Environm Sci, Philadelphia, PA 19104 USA; [Wanker, M.; Edmonds, D. A.] Indiana Univ, Dept Earth & Atmospher Sci, Bloomington, IN USA; [Lancaster, N.] Desert Res Inst, Div Earth & Ecosyst Sci, Reno, NV USA; [Ewing, R. C.] Texas A&M Univ, Dept Geol & Geophys, College Stn, TX USA; [Jerolmack, D. J.] Univ Penn, Dept Mech Engn & Appl Mech, Philadelphia, PA 19104 USA
推荐引用方式 GB/T 7714	Gunn, A.,Wanker, M.,Lancaster, N.,et al. Circadian Rhythm of Dune-Field Activity[J]. Desert Research Institute,2021,48(5).
APA	Gunn, A.,Wanker, M.,Lancaster, N.,Edmonds, D. A.,Ewing, R. C.,&Jerolmack, D. J..(2021).Circadian Rhythm of Dune-Field Activity.GEOPHYSICAL RESEARCH LETTERS,48(5).
MLA	Gunn, A.,et al."Circadian Rhythm of Dune-Field Activity".GEOPHYSICAL RESEARCH LETTERS 48.5(2021).