Knowledge Resource Center for Ecological Environment in Arid Area
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
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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). |
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