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首页> 外文期刊>Doklady Earth Sciences >Modeling the Dynamics of the Refraction Coefficient Field for Radio waves of the Centimeter Range in the Lower Atmospheric Layer
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Modeling the Dynamics of the Refraction Coefficient Field for Radio waves of the Centimeter Range in the Lower Atmospheric Layer

机译:较低大气层厘米范围无线电波折射系数场的动力学模型

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摘要

A mesoscale numerical model of the real nonstationary atmosphere (WRF with core ARW) [1-3] was applied for the first time in this work to calculate spatiotemporal variations of 3D fields of the refraction coefficient for radiowaves of the centimeter range (hereafter, CR radiowaves) in the lower atmospheric layer on regional scales. A numerical analysis of the influence of spatial resolution of the model (from 1 to 10 km in the horizontal direction) on the quality of modeling showed that the high-resolution model appears more stable despite the significantly smaller area of the coverage on small time scales (high-quality modeling of the largest possible areas is significant due to the transport processes). This analysis was made on the basis of comparison with unique experimental data of long-term monitoring of atmospheric parameters with a time step of 1 min for different time scales, time of the year, and meteorological conditions. Such model is more preferable for modeling the refraction coefficient of the CR radiowaves.
机译:在这项工作中,首次使用了真实的非平稳大气的中尺度数值模型(具有ARW核心的WRF)[1-3],以计算厘米范围无线电波的折射系数的3D场的时空变化(以下称为CR)区域范围内较低大气层的无线电波)。对模型的空间分辨率(水平方向为1至10 km)对建模质量的影响进行的数值分析表明,尽管在较小的时间范围内,覆盖范围明显较小,但高分辨率模型显得更稳定。 (由于运输过程,对最大可能区域的高质量建模非常重要)。该分析是在与长期监测大气参数的独特实验数据进行比较的基础上进行的,其中不同时间范围,一年中的时间和气象条件的时间步长为1分钟。这种模型对于建模CR无线电波的折射系数是更优选的。

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