论文标题
使用广义差异图像运动监视器在Calern天文台进行湍流监测
Turbulence monitoring at Calern observatory with the Generalised Differential Image Motion Monitor
论文作者
论文摘要
几年前，提出了广义的差异图像运动监视器（GDIMM）作为湍流监测的新一代工具。它测量了光湍流的集成参数，即视线，异跨角度，闪烁指数，相干时间和波前相干性外尺度。 GDIMM基于一个全自动的小型望远镜（直径28厘米），该望远镜在其入口瞳孔上配备了3孔口罩。该仪器安装在Calern天文台（法国），并对湍流参数进行连续的夜间监测。在这种交流中，我们介绍了在Calern获得的长期和季节统计数据，并将GDIMM数据组合在一起，以提供等效湍流高度和有效风速等数量。
The Generalised Differential Image Motion Monitor (GDIMM) was proposed a few years ago as a new generation instrument for turbulence monitoring. It measures integrated parameters of the optical turbulence, i.e the seeing, isoplanatic angle, scintillation index, coherence time and wavefront coherence outer scale. GDIMM is based on a fully automatic small telescope (28cm diameter), equipped with a 3-holes mask at its entrance pupil. The instrument is installed at the Calern observatory (France) and performs continuous night-time monitoring of turbulence parameters. In this communication we present long-term and seasonnal statistics obtained at Calern, and combine GDIMM data to provide quantities such as the equivalent turbulence altitude and the effective wind speed.
