Forecast upper air optical turbulence based on weather research and forecasting model
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摘要: 介绍了天气数值预报模式的运行流程、模式安装、模拟参数设置等。结合光学湍流的参数化方案,预报了大气光学湍流强度廓线,并与探空气球实测数据对比验证。结果表明,预报的大气光学湍流强度廓线符合高空光学湍流的一般特征和变化规律,但廓线的形状与实测存在一定的差异,并分析产生差异的原因。分析表明，提高预报精度需要改进高空湍流外尺度模式。Abstract: Forecasting upper air optical turbulence has important significance in optical engineering applications. This paper introduces the running processes of Weather Research and Forecasting Mode (WRF), mode installation, and simulation parameter settings. Combine with optical turbulence parameterization schemes, the atmospheric optical turbulence intensity profile was forecasted and compared with the measured data by balloons. The result shows that: the forecasted atmospheric optical turbulence intensity profiles are in line with the general characteristics and regularity of the upper air optical turbulence, but their shapes have some differences. the analysis on the causes of the differences is made, which shows it is necessary to further modify the forecasting model and the calculation of atmospheric optical turbulence.
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Key words:
- atmospheric optics /
- weather forecasting model /
- optical turbulence profile /
- outer scale
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