文章基本信息

标题：Simulating the Refractive Index Structure Constant (C 2 n) in the Surface Layer at Antarctica with a Mesoscale Model
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作者：Chun Qing ; Xiaoqing Wu ; Xuebin Li 等
期刊名称：The Astronomical journal
印刷版ISSN：0004-6256
电子版ISSN：1538-3881
出版年度：2018
卷号：155
期号：1
页码：1-13
DOI：10.3847/1538-3881/aa9e8f
语种：English
出版社：American Institute of Physics
摘要：In this paper, we introduce an approach wherein the Weather Research and Forecasting (WRF) model is coupled with the bulk aerodynamic method to estimate the surface layer refractive index structure constant (Cn 2 ) above Taishan Station in Antarctica. First, we use the measured meteorological parameters to estimate Cn 2 using the bulk aerodynamic method, and second, we use the WRF model output parameters to estimate Cn 2 using the bulk aerodynamic method. Finally, the corresponding Cn 2 values from the micro-thermometer are compared with the Cn 2 values estimated using the WRF model coupled with the bulk aerodynamic method. We analyzed the statistical operators—the bias, root mean square error (RMSE), bias-corrected RMSE (σ), and correlation coefficient (Rxy)—in a 20 day data set to assess how this approach performs. In addition, we employ contingency tables to investigate the estimation quality of this approach, which provides complementary key information with respect to the bias, RMSE, σ, and Rxy. The quantitative results are encouraging and permit us to confirm the fine performance of this approach. The main conclusions of this study tell us that this approach provides a positive impact on optimizing the observing time in astronomical applications and provides complementary key information for potential astronomical sites.
关键词：atmospheric effects;methods: data analysis;methods: numerical;site testing;turbulence