风速垂直切变随tc加强而减弱。
本文研究声重波在垂直切变风场中传播时谱结构的改变。
In this paper, the variation of spectral structure of acoustic gravity waves (AGW's) propagating through a region of vertical wind shear is investigated.
弱的垂直切变和暖洋面的存在也是台风强度维持的原因之一。
Weak vertical shear and warm sea surface are other reasons to remain the intensity of typhoon.
根据可压缩情况下的流体力学方程组，导出垂直切变风场中大气声重波的谱方程。
By using the compressible hydrodynamic equations, a spectral equation describing propagation of AGW's in a region of vertical wind shear is derived.
盛夏季节，宜宾雷暴的形成主要与对流层内高温高湿、风及其在对流层的中上部垂直切变小的特点相关联。
In this paper, by using sounding data at Yibin and Xilin in China, the causes with or without thunderstorm are analysed in midsummer.
本文应用WKB方法研究了在弱非均匀层结大气中，当基本气流具有弱垂直切变时，重力惯性内波的稳定性问题。
This paper discusses the stability of internal inertial gravity wave in the heterogeneous stratified atmosphere when basic flow appears to be weak vertical shear by the WKB method.
那曲强雷暴天气发生前，低空常出现强西南或东南风急流，且存在强水平风速垂直切变，两者可能是那曲雷暴天气频发的重要原因之一。
There often exist strong low-level southwest jet and wind vertical sheer before storm weather comes in Naqu area, and the two factors above may be important causes of local storm in rain season.
上新世早期的大气环流被减弱，因此垂直风切变减小，助长了热带气旋的发展。
Tthe early Pliocene had a weakened atmospheric circulation, and therefore, reduced vertical wind shear, which is favorable for tropical cyclone growth.
文中指出垂直风切变及其变化与温度平流的存在是紧密相关的。
It is pointed out that vertical wind shear and its change are closely correlated with the temperature advection.
一般，垂直风切变的值越大，遇到晴空颠簸和强颠簸气流的可能性越大。
In general, the higher the vertical wind shear, the more likely an encounter with CAT and strong turbulence.
飑线的产生经常与不稳定能量和垂直风切变相联系。
The occurrence of squall lines is frequently associated with instability energy and vertical wind shear.
在对流边界层中平均风速垂直分布存在风切变现象。
There exists the wind shear in the vertical distribution of the average wind speed in the convective boundary layer.
持续的垂直风向切变及强辐合等风场结构为暴雪产生创造了条件；
The special structure of wind area such as continuous vertical wind direction shear and the strong convergence create the useful situation of the snowstorm.
详细介绍了基于VAD技术的垂直风廓线产品（VWP）的应用技术，此产品对确定热力平流类型、垂直风切变等都是有用的。
The product of vertical wind profile(VWP) which based on VAD methods are introduced detailedly. This product is useful to ascertain the type of thermal advection, the shear of vertical wind, etc.
提高对流天气临近预报准确率的关键问题之一是了解大气的垂直稳定度和垂直风切变。
To improve the accuracy of convection weather forecast, one of the key issues is to find out the atmospheric vertical stability and wind shear.
采用计算横波型扰动波谱和谱函数的方法，研究了当基本气流具有垂直线性切变、层结参数为常值时横波型扰动的不稳定，给出了不稳定扰动的结构，讨论了不稳定的性质。
The character and structure of instability of transversal wave disturbance is studied in this paper by using calculating the spectrum and spectral function of the transversal wave disturbance.
采用计算横波型扰动波谱和谱函数的方法，研究了当基本气流具有垂直线性切变、层结参数为常值时横波型扰动的不稳定，给出了不稳定扰动的结构，讨论了不稳定的性质。
The character and structure of instability of transversal wave disturbance is studied in this paper by using calculating the spectrum and spectral function of the transversal wave disturbance.
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