In situ measurements and neural network analysis of the profiles of optical turbulence over the Tibetan Plateau
文献类型：期刊论文
| 作者 | Su, Changdong1,2,3; Wu, Xiaoqing1,2 ; Wu, Su1,2,3; Yang, Qike1,2,3; Han, Yajuan1,2,3; Qing, Chun1,2; Luo, Tao1,2; Liu, Yi4
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| 刊名 | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
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| 出版日期 | 2021-09-01 |
| 卷号 | 506 |
| 关键词 | turbulence balloons methods: data analysis |
| ISSN号 | 0035-8711 |
| DOI | 10.1093/mnras/stab1792 |
| 通讯作者 | Wu, Xiaoqing(xqwu@aiofm.ac.cn) |
| 英文摘要 | The vertical profile of C-n(2) is the main factor for accurate astronomical observation and laser communication, however, hardwarebased instruments and associated data are not widely available due to logistical and financial issues. In this article, we developed an indirect method, a hybrid network structure which is a combination of the backpropagation neural network and the simulated annealing algorithm, to fit the vertical profile of C-n(2). Radiosonde measurements from a field campaign over the Tibetan Plateau at Dachaidan (37.7 degrees N, 95.3 degrees E, 3180 m ASL) were performed in 2020 August to estimate the accuracy of our model, during which a balloon-borne portable turbulence meteorological radiosonde was used to measure the atmospheric optical profiles. Besides, the integrated astronomical parameters (the coherence length r(0), seeing epsilon(0), isoplanatic angle theta(0), and the wavefront coherence time tau(0)), derived from C-n(2) and wind-speed vertical profiles, are investigated for astronomical applications using the proposed model. In addition, quantitative evaluations such as the correlation coefficient, the root mean squared error, and the systematic bias are used to quantify the performance of our model. More interesting, this model is found to outperform a widely used external scale model for the prevalent atmospheric conditions and shows better correlation and reliable estimates. |
| WOS关键词 | SURFACE-LAYER ; OUTER SCALE |
| 资助项目 | National Key Technology Support Program of China[2018YFC0213101] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA17010104] ; National Natural Science Foundation of China[91752103] ; Foundation ofKey Laboratory of Science and Technology Innovation of the Chinese Academy of Sciences[CXJJ-19S028] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:000685245200024 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Key Technology Support Program of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; Foundation ofKey Laboratory of Science and Technology Innovation of the Chinese Academy of Sciences |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/124413]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Wu, Xiaoqing |
| 作者单位 | 1.Adv Laser Technol Lab Anhui Prov, Hefei 230037, Peoples R China 2.Chinese Acad Sci, Anhui Inst Opt & Fine Mech, HFIPS, Key Lab Atmospher Opt, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Sci Isl Branch, Grad Sch, Hefei 230026, Peoples R China 4.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Middle Atmosphere & Global Environm Obser, Beijing 100029, Peoples R China |
| 推荐引用方式 GB/T 7714 | Su, Changdong,Wu, Xiaoqing,Wu, Su,et al. In situ measurements and neural network analysis of the profiles of optical turbulence over the Tibetan Plateau[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2021,506. |
| APA | Su, Changdong.,Wu, Xiaoqing.,Wu, Su.,Yang, Qike.,Han, Yajuan.,...&Liu, Yi.(2021).In situ measurements and neural network analysis of the profiles of optical turbulence over the Tibetan Plateau.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,506. |
| MLA | Su, Changdong,et al."In situ measurements and neural network analysis of the profiles of optical turbulence over the Tibetan Plateau".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 506(2021). |
入库方式： OAI收割
来源：合肥物质科学研究院
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