Mesoscale optical turbulence simulations above Tibetan Plateau: first attempt
Qing, Chun2; Wu, Xiaoqing2; Li, Xuebin2; Luo, Tao2; Su, Changdong1,2; Zhu, Wenyue2
刊名OPTICS EXPRESS
2020-02-17
卷号28
ISSN号1094-4087
DOI10.1364/OE.386078
通讯作者Zhu, Wenyue(zhuwenyue@aiofm.ac.cn)
英文摘要

The vertical distributions of optical turbulence (C-n(2) profiles) are a major factor in defining the capabilities of ground-based telescopes and interferometers. As site-testing campaigns are extremely expensive and instruments only provide the local atmospheric parameter, atmospheric modeling might represent an advance prediction result in astronomical sites. The key meteorological parameters and the integrated astroclimatic parameters (Fried parameter r(0), seeing epsilon, isoplanatic angle theta(AO) and wavefront coherence time tau(AO)) related to the C-n(2) profiles above the Tibetan Plateau are investigated for astronomical applications by using the Weather Research and Forecasting (WRF) model. Radiosonde measurements from a field campaign at Lhasa station above the Tibetan Plateau are used to quantify the ability of this model. The results show that the C-n(2) profile decreases rapidly in the surface layer, increasing with height from the boundary layer to low stratosphere, and decreases gradually in the high free atmosphere. From the whole campaign measurements above the Tibetan Plateau, the mean r(0) is 8.64 cm, the mean epsilon is 1.55 '', the mean theta(AO) is 0.42 '' and the mean tau(AO) is 1.89 ms, and the comparison with the other world's leading observatory sites have been presented. In addition, such as the bias and the root-mean-squared error are used to quantify the performance of the WRF model. In spite of the model performance in reconstructing the meteorological parameters is reasonable in general, the uncertainty in quantifying the C-n(2) profiles and the integrated parameters are not negligible in some cases. The main results of this study tell us that the WRF model could provide a useful resource to design, monitor the performance of, and even optimize the operation of sophisticated Adaptive Optics (AO) systems. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17010104] ; National Natural Science Foundation of China[91752103] ; Foundation of Key Laboratory of Science and Technology Innovation of Chinese Academy of Sciences[CXJJ-19S028]
WOS关键词DOME-C ; SURFACE-LAYER ; WATER-VAPOR ; MODEL ; IMPLEMENTATION ; PARAMETERS ; FORECAST ; ROGUE
WOS研究方向Optics
语种英语
出版者OPTICAL SOC AMER
WOS记录号WOS:000514575500018
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China ; Foundation of Key Laboratory of Science and Technology Innovation of Chinese Academy of Sciences
内容类型期刊论文
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/72378]  
专题中国科学院合肥物质科学研究院
通讯作者Zhu, Wenyue
作者单位1.Univ Sci & Technol China, Sci Isl Branch Grad Sch, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, Key Lab Atmospher Opt, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714
Qing, Chun,Wu, Xiaoqing,Li, Xuebin,et al. Mesoscale optical turbulence simulations above Tibetan Plateau: first attempt[J]. OPTICS EXPRESS,2020,28.
APA Qing, Chun,Wu, Xiaoqing,Li, Xuebin,Luo, Tao,Su, Changdong,&Zhu, Wenyue.(2020).Mesoscale optical turbulence simulations above Tibetan Plateau: first attempt.OPTICS EXPRESS,28.
MLA Qing, Chun,et al."Mesoscale optical turbulence simulations above Tibetan Plateau: first attempt".OPTICS EXPRESS 28(2020).
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