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Modelling of atmospheric optical turbulence with the Weather Research and Forecasting model at the Ali observatory, Tibet
Qian, Xuan1; Yao, Yongqiang1; Zou, Lei2; Wang, Hongshuai3; Yin, Jia1,4; Li, Yao1,4
2021-07-01
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
ISSN0035-8711
Volume505Issue:1Pages:582-592
AbstractIn this study, we make use of a meso-scale numerical model to obtain the parameters of atmospheric optical turbulence at the Ali observatory above the Tibetan Plateau. These parameters are essential for ground-based optical observations and some adaptive optics techniques. We present the characterization of the vertical distributions of atmospheric optical turbulence C-n(2) and the main integral parameters, such as coherence time tau(0), isoplanatic angle theta(0) and seeing epsilon(0) derived from C-n(2). Meanwhile, the measurement of C-n(2) obtained with a radiosonde instrument is used to quantify the model performance on reconstructing the optical turbulence above the site. This shows a high level of agreement and provides a reliable tool for astronomical site testing. The results presented in this paper demonstrate the good behaviour of the atmospheric optical turbulence condition at Ali, particularly during the summer half of the year. We find yearly median values of seeing epsilon(0) = 0.47 arcsec, isoplanatic angle theta(0) = 4.35 arcsec and atmospheric coherence time tau(0) = 5.52 ms in 2016, and we also provide independent confirmation of the potential of the Ali site in adaptive optics. Moreover, it has been proven that meso-scale models can provide reliable estimations of atmospheric optical turbulence conditions above an astronomical site on the Tibetan Plateau.
Keywordturbulence atmospheric effects methods: numerical site testing
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
DOI10.1093/mnras/stab1316
WOS KeywordSIMULATIONS ; SITES ; DOME ; TOOL
Language英语
Funding ProjectNational Natural Science Foundation of China (NSFC)[11973004] ; National Natural Science Foundation of China (NSFC)[11203044]
Funding OrganizationNational Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC) ; National Natural Science Foundation of China (NSFC)
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000671453100039
PublisherOXFORD UNIV PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/76708
Collection中国科学院国家天文台
Corresponding AuthorQian, Xuan; Zou, Lei; Wang, Hongshuai
Affiliation1.Chinese Acad Sci, Natl Astron Observ China, 20A Datun Rd, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, 11 Datun Rd, Beijing 100101, Peoples R China
3.Kaiyang Space Technol Co LTD, 8 Malianwa North Rd, Beijing 100085, Peoples R China
4.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Qian, Xuan,Yao, Yongqiang,Zou, Lei,et al. Modelling of atmospheric optical turbulence with the Weather Research and Forecasting model at the Ali observatory, Tibet[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,505(1):582-592.
APA Qian, Xuan,Yao, Yongqiang,Zou, Lei,Wang, Hongshuai,Yin, Jia,&Li, Yao.(2021).Modelling of atmospheric optical turbulence with the Weather Research and Forecasting model at the Ali observatory, Tibet.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,505(1),582-592.
MLA Qian, Xuan,et al."Modelling of atmospheric optical turbulence with the Weather Research and Forecasting model at the Ali observatory, Tibet".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 505.1(2021):582-592.
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