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Thickness of the Atmospheric Boundary Layer Above Dome A, Antarctica, during 2009
Bonner, C. S.1; Ashley, M. C. B.1; Cui, X.2; Feng, L.3; Gong, X.2; Lawrence, J. S.1,4; Luong-Van, D. M.1; Shang, Z.5; Storey, J. W. V.1; Wang, L.3,6; Yang, H.7; Yang, J.3; Zhou, X.8; Zhu, Z.3
2010-09-01
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
Volume122Issue:895Pages:1122-1131
AbstractThe domes, or local elevation maxima, on the Antarctic plateau provide a unique opportunity for ground-based astronomy in that the turbulent boundary layer is so thin that a telescope on a small tower can be in the free atmosphere, i.e., the portion of the atmosphere in which the turbulence is decoupled from the effect of the Earth's surface. There, it can enjoy a free atmosphere which itself appears to offer superior conditions to that of temperate sites. This breaks the problem of characterizing the turbulence at Antarctic plateau sites into two separate tasks: determining the variability, distribution and thickness of the boundary layer, and characterizing the free atmosphere. In this article we tackle the first of these tasks using a high-resolution, low minimum sample height sonic radar (SODAR) called Snodar that has been specifically designed to characterize the Antarctic boundary thickness and structure. Snodar delivers a vertical resolution of 0.9 m, with a minimum sampling height of 8 m. Snodar sampled the first 180 m of the atmosphere with 0.9 m resolution every 10 s at Dome A, Antarctica between 2009 February 4 and 2009 August 18. The median thickness of the boundary layer over this period was 13.9 m, with the 25th and 75th percentiles at 9.7 m and 19.7 m, respectively. The data collected from Dome A also show that, while the boundary layer can be stable for several hundred hours at a time, it can also be highly variable and must be sampled on the time scale of minutes to properly characterize its thickness.
Indexed BySCI
Language英语
WOS IDWOS:000281324800012
Citation statistics
Cited Times:42[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/7726
Collection光学天文研究部
Affiliation1.Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
2.Nanjing Insititute Astron Opt & Technol, Nanjing 210042, Peoples R China
3.Purple Mt Observ, Nanjing 210008, Peoples R China
4.Macquarie Univ, Dept Phys, N Ryde, NSW 2109, Australia
5.Tianjin Normal Univ, Tianjin 300074, Peoples R China
6.Texas A&M Univ, George P & Cynthia W Mitchell Inst Fundamental Ph, Dept Phys & Astron, College Stn, TX 77843 USA
7.Polar Res Inst China, Shanghai 200136, Peoples R China
8.Natl Astron Observ, Beijing 100012, Peoples R China
Recommended Citation
GB/T 7714
Bonner, C. S.,Ashley, M. C. B.,Cui, X.,et al. Thickness of the Atmospheric Boundary Layer Above Dome A, Antarctica, during 2009[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2010,122(895):1122-1131.
APA Bonner, C. S..,Ashley, M. C. B..,Cui, X..,Feng, L..,Gong, X..,...&Zhu, Z..(2010).Thickness of the Atmospheric Boundary Layer Above Dome A, Antarctica, during 2009.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,122(895),1122-1131.
MLA Bonner, C. S.,et al."Thickness of the Atmospheric Boundary Layer Above Dome A, Antarctica, during 2009".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 122.895(2010):1122-1131.
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