On the comparison between MASS and generalized-SCIDAR techniques
On the comparison between MASS and generalized-SCIDAR techniques
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MASS 与广义 SCIDAR 技术的比较
DOI：
10.1093/mnras/stt2194
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发表时间：
2013
影响因子：
4.8
通讯作者：
F. Lascaux
中科院分区：
文献类型：
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作者：
E. Masciadri;Gianluca Lombardi;F. Lascaux
多孔径闪烁传感器（MASS）和广义闪烁探测和测距（广义SCIDAR）是两种用于测量整个对流层和低平流层（20公里）光学湍流垂直分布的仪器，广泛用于天文学领域。在本文中，我们进行了详细的分析/比较的测量提供的两个仪器，并在2007年在Cerro Paranal进行的扩展现场测试活动，并促进了欧洲南方天文台（ESO）。研究的主要和最终目的是提供测量可靠性的详细估计，即由两台仪器在离地面不同高度处进行的湍流测量的分散性。这一信息直接关系到我们估计湍流层结绝对值的能力。为了更好地分析MASS和GS之间的不确定性，我们利用了在同一活动期间由第三个独立仪器（DIMM -Diego Imaging Motion Monitor）测量整个20 km范围内的综合湍流的可用性。这样的交叉检查比较使我们能够确定仪器及其测量的可靠性，它们的限制以及它们的使用可能带来一些风险的背景。
The Multi Aperture Scintillation Sensor (MASS) and the Generalized-Scintillation Detection and Ranging (Generalized SCIDAR) are two instruments conceived to measure optical turbulence (OT) vertical distribution on the whole troposphere and low stratosphere ( 20 km) widely used in the astronomical context. In this paper we perform a detailed analysis/comparison of measurements provided by the two instruments and taken during the extended site testing campaign carried out on 2007 at Cerro Paranal and promoted by the European Southern Observatory (ESO). The main and nal goal of the study is to provide a detailed estimation of the measurements reliability i.e dispersion of turbulence measurements done by the two instruments at dierent heights above the ground. This information is directly related to our ability in estimating the absolute value of the turbulence stratication. To better analyze the uncertainties between the MASS and the GS we took advantage of the availability of measurements taken during the same campaign by a third independent instrument (DIMM - Dierential Imaging Motion Monitor) measuring the integrated turbulence extended on the whole 20 km. Such a cross-check comparison permitted us to dene the reliability of the instruments and their measurements, their limits and the contexts in which their use can present some risk.