Dome Fuji Seeing -the Summer Results and the Future Winter-over Observations
Dome Fuji Seeing -the Summer Results and the Future Winter-over Observations
复制标题
DOI：
10.1017/s1743921312016626
复制
发表时间：
2012-08
期刊：
影响因子：
--
通讯作者：
H. Okita;N. Takato;T. Ichikawa;C. Bonner;M. Ashley;J. Storey
中科院分区：
文献类型：
--
作者：
H. Okita;N. Takato;T. Ichikawa;C. Bonner;M. Ashley;J. Storey
摘要2010-2011年夏季，我们在富士巨蛋进行了首次视宁度测量。从这些观测结果中，我们发现富士圆顶的夏季视宁度分别为1.2″（平均值），1.1″（中位数），0.83″（第25百分位数）和1.5″（第75百分位数）。我们还发现，视宁度不断变化，每天18：00左右有一个最小值，约为0.7″。将视宁度与16 m桅杆观测到的一些天气参数进行了比较，发现视宁度与大气温度和风切变有很好的相关性。这些结果表明，视宁度下降的湍流附近的表面边界层。由于数据仅在夏季的短时间内获得，因此无法评估富士圆顶视宁度的一般特征。我们计划在冬季用独立的DIMM望远镜观测视宁度。这种新的DIMM，我们命名为圆顶富士差分图像运动监视器（DF-DIMM），将于2013年1月安装在圆顶富士。
Abstract We carried out the first seeing measurements at Dome Fuji in the 2010–2011 austral summer. From these observations, we found that the summer seeing at Dome Fuji was 1.2″ (mean), 1.1″ (median), 0.83″ (25th percentile) and 1.5″ (75th percentile), respectively. We also found that the seeing changed continuously and had a minimum around 0.7″ at ~18:00 hours daily. We compared the seeing with some weather parameters obtained from the 16 m mast, and found that the seeing had good correlations with atmosphere temperature and wind shear. These results suggest that the seeing is degraded by turbulence near the surface boundary layer. Because the data were obtained only over a short duration in summer, the general characteristics of Dome Fuji's seeing could not be evaluated. We plan to observe the seeing in winter with a stand-alone DIMM telescope. This new DIMM, which we named the Dome Fuji Differential Image Motion Monitor (DF–DIMM), will be installed at Dome Fuji in January 2013.