Frequency spectra of wind velocity and temperature fluctuations observed with the MU radar-RASS
Frequency spectra of wind velocity and temperature fluctuations observed with the MU radar-RASS
复制标题
MU雷达-RASS观测到的风速和温度波动的频谱
DOI：
10.1029/96gl03374
复制
发表时间：
1996
影响因子：
5.2
通讯作者：
T. Adachi
中科院分区：
文献类型：
--
作者：
Yuzuru Yamamoto;T. Tsuda;T. Adachi
MU 雷达-RASS 观测于 1994 年 7 月 28 日至 31 日在日本信乐（北纬 35°，东经 136°）进行，以确定对流层低层所有三个风分量和虚拟温度的详细时间变化。我们将它们的频谱与重力波的理论模型进行比较来讨论。假设流体静力平衡，我们还根据每个高度温度变化的时间导数估计了垂直风速。我们发现，与直接测量垂直风计算出的频谱相比，推导的垂直风的频谱与重力波模型更加一致。
MU radar-RASS observations were conducted on July 28–31, 1994 at Shigaraki, Japan (35°N, 136°E), to determine the detailed time variations of all three wind components and virtual temperature in the lower troposphere. We discuss their frequency spectra in comparison with a theoretical model of gravity waves. Assuming hydrostatic equilibrium, we also estimated the vertical wind velocity from the time derivative of temperature variations at each altitude. We found that the frequency spectra of the derived vertical wind were more consistent with a gravity wave model than those spectra calculated from direct measurements of the vertical wind.