博士生导师
硕士生导师
个人信息Personal Information
学科：天体物理. 空间物理学. 等离子体物理
报考该导师研究生的方式
欢迎你报考刘煜老师的研究生，报考有以下方式：
1、参加西南交通大学暑期夏令营活动，提交导师意向时，选择刘煜老师，你的所有申请信息将发送给刘煜老师，老师看到后将和你取得联系，点击此处参加夏令营活动
2、如果你能获得所在学校的推免生资格，欢迎通过推免方式申请刘煜老师研究生，可以通过系统的推免生预报名系统提交申请，并选择意向导师为刘煜老师，老师看到信息后将和你取得联系，点击此处推免生预报名
3、参加全国硕士研究生统一招生考试报考刘煜老师招收的专业和方向，进入复试后提交导师意向时选择刘煜老师。
4、如果你有兴趣攻读刘煜老师博士研究生，可以通过申请考核或者统一招考等方式报考该导师博士研究生。
[Title] Atmospheric turbulence parameters characterization and seeing forecasting at the Daocheng site using ERA5 reanalysis data
影响因子：4.8
DOI码：10.1093/mnras/staf2103
教研室：天体物理
发表刊物：Monthly Notices of the Royal Astronomical Society
关键字：turbulence,atmospheric effects,methods: data analysis,site testing
摘要：This study presents a comprehensive analysis of atmospheric parameters at the Daocheng site (100|$^\circ 05^\prime$| E,29|$^\circ 08^\prime$| N) in China,using the ERA5 reanalysis data spanning 2014–2024. By implementing a physical parametrization scheme,we derive the vertical profiles of temperature,wind speed and optical turbulence strength,characterized by the refractive index structure constant |$C_n^2(h)$|. Our analysis reveals exceptional atmospheric stability,characterized by minimal tropopause height variations (range: 17.06–17.81 km;annual amplitude |$<$|0.74 km) and favourable summer conditions,with median 200 hPa wind speeds (V|$_{200}$|) remaining below 20 m s|$^{-1}$| during June–September. The |$C_n^2(h)$| profile decreases monotonically from the surface to approximately 11 km,followed by a pronounced peak near 17 km that is strongly correlated with the local thermal structure. The derived optical turbulence parameters demonstrate excellent median seeing conditions (|$\varepsilon = 0.72\,\mathrm{ arcsec}$|),with 25 per cent of values better than |$0.48\,\mathrm{ arcsec}$|,along with key parameters including atmospheric coherence length (|$r_0 = 14.07$| cm),isoplanatic angle (|$\theta _0 = 0.89\,\mathrm{ arcsec}$|),and wavefront coherence time (|$\tau _0 = 2.21$| ms). The atmospheric coherence length consistently exceeds 20 cm during summer months,significantly outperforming spring–winter transitions. Based on this analysis,we develop an integrated forecasting framework combining ARIMA and Holt–Winters methodologies to predict the excellent seeing conditions for 2025. Time series analysis confirms a robust seasonal pattern,quantified by a seasonal intensity coefficient of 0.771. This work provides systematic estimation and forecasting of atmospheric turbulence parameters at the Daocheng site,establishing crucial scientific foundations for atmospheric characterization,adaptive optics system design,and strategic planning of current and future telescope facilities.
合写作者：Liu Y,Song TF,Sha FY,Liu Q,Li HT,Zhang XF,Huang WS,Lu LY,Wang XJ,Luo QW,Chen YR,Zhang H
第一作者：Zhou Q
论文类型：期刊论文
论文编号：007
学科门类：理学
一级学科：天文学
卷号：545
期号：2
页面范围：id.staf2103, 14 pp.
ISSN号：0035-8711
是否译文：否
发表时间：2026-01-05
收录刊物：SCI