Quantitative Analysis of Seeing with Height and Time at Muztagh-Ata Site Based on ERA5 Database
文献类型：期刊论文
| 作者 | Wu, Xiao-Qi1,3; Xiao, Cun-Ying1,3; Esamdin, Ali2,4 ; Xu, Jing2,4; Wang, Ze-Wei1,3; Xiao, Luo1,3
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| 刊名 | RESEARCH IN ASTRONOMY AND ASTROPHYSICS
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| 出版日期 | 2024 |
| 卷号 | 24期号:1页码:015006 |
| 关键词 | site testing atmospheric effects methods: data analysis telescopes Earth |
| ISSN号 | 1674-4527 |
| DOI | 10.1088/1674-4527/ad057d |
| 产权排序 | 3 |
| 英文摘要 | Seeing is an important index to evaluate the quality of an astronomical site. To estimate seeing at the Muztagh-Ata site with height and time quantitatively, the European Centre for Medium-Range Weather Forecasts reanalysis database (ERA5) is used. Seeing calculated from ERA5 is compared consistently with the Differential Image Motion Monitor seeing at the height of 12 m. Results show that seeing decays exponentially with height at the Muztagh-Ata site. Seeing decays the fastest in fall in 2021 and most slowly with height in summer. The seeing condition is better in fall than in summer. The median value of seeing at 12 m is 0.89 arcsec, the maximum value is 1.21 arcsec in August and the minimum is 0.66 arcsec in October. The median value of seeing at 12 m is 0.72 arcsec in the nighttime and 1.08 arcsec in the daytime. Seeing is a combination of annual and about biannual variations with the same phase as temperature and wind speed indicating that seeing variation with time is influenced by temperature and wind speed. The Richardson number Ri is used to analyze the atmospheric stability and the variations of seeing are consistent with Ri between layers. These quantitative results can provide an important reference for a telescopic observation strategy. |
| WOS关键词 | OPTICAL TURBULENCE ; SURFACE-LAYER ; DOME-C ; TELESCOPE ; OUKAIMEDEN ; PROFILES |
| 资助项目 | National Natural Science Foundation of China (NSFC)[11872128] ; National Natural Science Foundation of China (NSFC)[42174192] ; National Natural Science Foundation of China (NSFC)[91952111] ; Chinese Academy of Sciences (CAS)[U2031209] |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001125054100001 |
| 出版者 | NATL ASTRONOMICAL OBSERVATORIES, CHIN ACAD SCIENCES |
| 资助机构 | National Natural Science Foundation of China (NSFC) ; Chinese Academy of Sciences (CAS) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/5665]  |
| 专题 | 光学天文与技术应用研究室_变星研究团组 |
| 通讯作者 | Xiao, Cun-Ying |
| 作者单位 | 1.Beijing Normal Univ, Dept Astron, Beijing 100875, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Beijing Normal Univ, Inst Frontiers Astron & Astrophys, Beijing 102206, Peoples R China 4.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Xiao-Qi,Xiao, Cun-Ying,Esamdin, Ali,et al. Quantitative Analysis of Seeing with Height and Time at Muztagh-Ata Site Based on ERA5 Database[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2024,24(1):015006. |
| APA | Wu, Xiao-Qi,Xiao, Cun-Ying,Esamdin, Ali,Xu, Jing,Wang, Ze-Wei,&Xiao, Luo.(2024).Quantitative Analysis of Seeing with Height and Time at Muztagh-Ata Site Based on ERA5 Database.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,24(1),015006. |
| MLA | Wu, Xiao-Qi,et al."Quantitative Analysis of Seeing with Height and Time at Muztagh-Ata Site Based on ERA5 Database".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 24.1(2024):015006. |
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来源：新疆天文台
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