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Optical turbulence and wind speed distributions above the Tibetan Plateau from balloon-borne microthermal measurements
Qing, Chun1,2; Luo, Tao1,2; Bi, Cuicui1,2,3; Li, Xuebin1,2; Cui, Shengcheng1,2; Yang, Qike1,2,3; Su, Changdong1,2,3; Wu, Su1,2,3; Qian, Xianmei1,2; Wu, Xiaoqing1,2; Zhu, Wenyue1,2
2021-12-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Corresponding AuthorQing, Chun(chunqing@aiofm.ac.cn) ; Wu, Xiaoqing(xqwu@aiofm.ac.cn) ; Zhu, Wenyue(zhuwenyue@aiofm.ac.cn)
AbstractThe vertical profiles of wind speed and the optical turbulence are critical to the design and operation of a new generation of highly sophisticated astronomical telescopes and adaptive optics instrumentation. We present the first study of the temporal evolution behaviours and probability distributions of wind speed [V(h) profiles, as well as the 200 hPa pressure level wind speed, V-200] and optical turbulence [C-n(2) (h) profiles, and the most relevant integrated astronomical parameters derived from C-n(2) (h) profiles, i.e. the seeing epsilon, the isoplanatic angle theta(AO), the wavefront coherence time tau(AO), the average velocity of turbulence V-AO, and the seeing layer height h(AO)] above the Dachaidan site of the Tibetan Plateau. The field campaigns of wind speed and optical turbulence were collected using the balloon-borne microthermal measurement system. From the whole field campaigns, the results are remarkable: The median V-AO is 21.1 m s(-1), the median V-200 is 32.5 m s(-1), the median h(AO) is 7566 m, the median epsilon is 1.04 arcsec (below 1.00 arcsec 52 per cent of the time), the median theta(AO) is 0.74 arcsec, and the median tau(AO) is 1.33 ms; these conditions are comparable to some of the best astronomical observatories in the world. In particular, the linear relationship of average velocity and 200 hPa level wind at this site is V-AO = 0.627V(200). In this study, we flag the temporal evolution and probability distribution feature of wind speed, optical turbulence profile, and the relevant integrated astronomical parameters for astronomical applications.
Keywordturbulence atmospheric effects methods: data analysis site testing
DOI10.1093/mnras/stab2608
WOS KeywordDOME-C ; ATMOSPHERIC-TURBULENCE ; SURFACE-LAYER ; SEEING CONDITIONS ; ADAPTIVE OPTICS ; MAUNA-KEA ; SIMULATIONS ; PARAMETERS ; PROFILES ; MODEL
Indexed BySCI
Language英语
Funding ProjectStrategic Priority Research Program of the Chinese Academy of Sciences[XDA17010104] ; Foundation of Key Laboratory of Science and Technology Innovation of Chinese Academy of Sciences[CXJJ-19S028]
Funding OrganizationStrategic Priority Research Program of the Chinese Academy of Sciences ; Foundation of Key Laboratory of Science and Technology Innovation of Chinese Academy of Sciences
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000715888600066
PublisherOXFORD UNIV PRESS
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Document Type期刊论文
Identifierhttp://ir.hfcas.ac.cn:8080/handle/334002/126823
Collection中国科学院合肥物质科学研究院
Corresponding AuthorQing, Chun; Wu, Xiaoqing; Zhu, Wenyue
Affiliation1.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, HFIPS, Hefei 230031, Anhui, Peoples R China
2.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Anhui, Peoples R China
3.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230026, Anhui, Peoples R China
First Author AffilicationAnhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China
Corresponding Author AffilicationAnhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, China
Recommended Citation
GB/T 7714
Qing, Chun,Luo, Tao,Bi, Cuicui,et al. Optical turbulence and wind speed distributions above the Tibetan Plateau from balloon-borne microthermal measurements[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,508.
APA Qing, Chun.,Luo, Tao.,Bi, Cuicui.,Li, Xuebin.,Cui, Shengcheng.,...&Zhu, Wenyue.(2021).Optical turbulence and wind speed distributions above the Tibetan Plateau from balloon-borne microthermal measurements.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,508.
MLA Qing, Chun,et al."Optical turbulence and wind speed distributions above the Tibetan Plateau from balloon-borne microthermal measurements".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 508(2021).
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