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Meteorological Data for the Astronomical Site at Dome A, Antarctica
Hu, Yi1; Shang, Zhaohui1,2; Ashley, Michael C. B.3; Bonner, Colin S.3; Hu, Keliang1; Liu, Qiang1; Li, Yuansheng4; Ma, Bin1; Wang, Lifan5,6; Wen, Haikun7
2014-09-01
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC
ISSN0004-6280
Volume126Issue:943Pages:868-881
AbstractWe present an analysis of the meteorological data collected at Dome A, Antarctica by the Kunlun Automated Weather Station, including temperatures and wind speeds at eight elevations above the snow surface between 0 m and 14.5 m. The average temperatures at 2 m and 14.5 m are -54 degrees C and -46 degrees C, respectively. We find that a strong temperature inversion existed at all heights for more than 70% of the time, and the temperature inversion typically lasts longer than 25 hr, indicating an extremely stable atmosphere. The temperature gradient is larger at lower elevations than at higher elevations. The average wind speed was 1.5 ms(-1) at 4 m elevation. We find that the temperature inversion is stronger when the wind speed is lower, and the temperature gradient decreases sharply at a specific wind speed for each elevation. The strong temperature inversion and low wind speed result in a shallow and stable boundary layer with weak atmospheric turbulence above it, suggesting that Dome A should be an excellent site for astronomical observations. All the data from the weather station are available for download.
WOS HeadingsScience & Technology ; Physical Sciences
WOS KeywordATMOSPHERIC BOUNDARY-LAYER ; SOUTH-POLE ; TURBULENCE ; PLATEAU
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000343073400007
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10603
Collection南极天文中心
Affiliation1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China
2.Tianjin Normal Univ, Tianjin Astrophys Ctr, Tianjin 300387, Peoples R China
3.Univ New S Wales, Sch Phys, Sydney, NSW 2052, Australia
4.Polar Res Inst China, Shanghai 200136, Peoples R China
5.Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
6.Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
7.Nanjing Inst Astron Opt & Technol, Nanjing 210042, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Hu, Yi,Shang, Zhaohui,Ashley, Michael C. B.,et al. Meteorological Data for the Astronomical Site at Dome A, Antarctica[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,2014,126(943):868-881.
APA Hu, Yi.,Shang, Zhaohui.,Ashley, Michael C. B..,Bonner, Colin S..,Hu, Keliang.,...&Wen, Haikun.(2014).Meteorological Data for the Astronomical Site at Dome A, Antarctica.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC,126(943),868-881.
MLA Hu, Yi,et al."Meteorological Data for the Astronomical Site at Dome A, Antarctica".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC 126.943(2014):868-881.
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