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三种实时计算风向标准差方法的比较
Comparison of Three Methods for Real-time Calculating the Standard Deviation of Wind Direction
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摘要: 文章介绍了三种可用于实时计算水平风向标准差的方法，并用它们处理了1988年夏季在浙江省北仑港和嘉兴现场测试中用超声风速仪测量的资料，与按风向标准差定义计算的结果进行了对比。结果表明，Yamartino算法精度最好，且算法简单，适于风向标准差的实时处理。Abstract: Three approximate methods for real-time calculating the standard deviation of wind direction are introduced. The ultrasonic anemometer-measured data collected at four sites are analysed with these methods. By comparing the results with those from accurate method, it is found that Yamartino method is the most accurate one for real-time calculating the standard deviation of wind direction.
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