Accuracy of sodar wind variance measurements
Accuracy of sodar wind variance measurements
复制标题
声雷达风方差测量的准确性
DOI：
10.1080/01431169408954075
复制
发表时间：
1994
影响因子：
3.4
通讯作者：
J. Gaynor
中科院分区：
文献类型：
--
作者：
J. Gaynor
国际雷达比对实验（ISIE）提供了一个独特的机会来详细测试商用多普勒雷达测量平均风和风方差的能力。这次会议于1988年9月6日至22日举行。三颗商用雷达被放置在距离300米高的博尔德大气天文台（BAO）塔基座300米的地方。两种雷达同时运行，使得比较更加灵活和简单。本文的结果比较了20分钟内平均风速的钠秒矩计算与BAO塔上三层声速风速计的类似计算。对垂直风分量σw和侧风分量σv的标准差进行了统计比较。苏打导出的σw量与声波风速计导出的量比较好，白色σv量与声波风速计导出的量比较差。这些结果是预料之中的，因为温度的变化导致了sodar σv计算的方差增加。
Abstract The International Sodar Intercomparison Experiment (ISIE) offered a unique opportunity to test in detail the capabilities of commercial Doppler sodars to measure the mean wind and wind variance. The ISIE was held between 6 and 22 September 1988. Three commercial sodars were placed within 300 m of the base of the 300-m high Boulder Atmospheric Observatory (BAO) tower. The sodars operated concurrently, allowing flexibility and simplicity in the comparisons. The results presented here compare sodar second moment calculations of the wind averaged over 20-min periods with similar calculations from sonic anemometers at three levels on the BAO tower. The standard deviations of the vertical wind, σw and the cross-wind component, σv, are statistically compared. The sodar-derived σwquantities compare reasonably well, white σv quantities compare poorly with the sonic anemometer-derived quantities. These results were expected because of the increased variance in the sodar σv calculations caused by the tempor...