垂直风速
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中性条件下垂直风速廓线及其参数模拟分析
Simulation of Vertical Wind Profile and Its Relevant Parameters under Neutral Condition
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合肥郊区大气边界层垂直风速的声雷达探测
Detecting the Vertical Velocity in the Atmosphere Boundary Layer in Hefei Using Sodar
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稳定层结下近地层垂直风速方差σw/U相似性的理论探讨
The similarity of vertical wind velocity variance σ w / u in the stable atmosphere surface layer
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同时分析了垂直风速标准差,发现其有明显的日变化特征,并且与大气折射率结构常数有很好的相关性。
Also it is found that the standard deviation of vertical velocity is relative to the refractive - index structure constant well .
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本文用多普勒声雷达探测的垂直风速连续观测资料,计算了垂直速度谱和垂直扩散系数。
The spectra of vertical velocity and the vertical diffusion coefficients are calculated based on the data by the Doppler acoustic radar .
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结果表明σw/U和σv/U随平均时间的变化分别与垂直风速和横向风速的能谱分布有关。
The results indicate that variations of σ w / U and σ v / U with averaging time are correlated with the vertical and lateral energy spectra .
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根据声雷达观测资料计算了水平风速、风向和垂直风速,并与325米气象塔上直接测量的仪器进行了比较。
Using the observation data of acoustic Doppler radar , the horizontal velocity , wind direction and vertical velocity are calculated and compared with those obtained by direct measurement on the tower .
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上海中尺度对流天气形成阶段的主要特征为中层以下为正涡度、辐合运动和垂直风速切变大值区,底层不稳定能量快速增加;最大上升速度和无辐散层发展至高层。
The formation stages : positive vorticity , convergence and vertical wind shear high value area appear at the middle layer and below , surface instability energy increases rapidly , and the maximum updraft and non-divergence level develop to high layer .
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环境风对重大灾害局地强风暴形成有重要影响的是风速,而不是垂直风速切变,后者与局地强风暴进一步发展成重大灾害局地强风暴没有机理上的联系。
The important effects of the environmental wind on the development of the severe local storm into a disastrous local storm lies in its wind velocity instead of its vertical wind velocity shear , which has no inevitable connection at all .
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不同太阳常数下大气环流特征如下:随着太阳常数增大,整层大气的温度升高,纬向风带增强,经向风速和垂直风速都减小,且北半球风速减小更强烈。
The characteristics of atmospheric circulation under different solar constants on Earth are as follow : as the solar constant gets larger , the temperature increases and zonal wind gets stronger . Both of meridional and latitudinal velocities decrease , which decrease greatly at north hemisphere . 5 .
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测定垂直温差和风速差计算水准测量折光改正的方法
A new method for calculating the leveling refraction correction by means of measuring the vertical temperature difference and wind velocity difference
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比较了4种风机(60W、90W、120W和150W)对热风循环烤房水平向和垂直向温度、风速和烟叶烘烤质量的差异。
Effects of 4 kinds of hot-air circulation fans with power ( 60W , 90W , 120W and 150W ) on the horizontal and vertical temperature , the wind speed in the barn , and the cured leaf quality were compared .
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根据风速分布函数,采用不同的数学形式的无穷远来流沿垂直高度变化的风速切面分析与计算风轮扫掠面积上产生的风功率。
According to wind speed distribution function , the wind power produced by the which passes through wind the rotor on swept area is analysed and calculated .
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在白天对流比较强时,瞬时垂直速度可超过0.6m/s,从对数据的统计分析来看,有90%的垂直风速在0.3m/s以下。
Result shows that the convection is strong in daytime with instantaneous vertical velocity 0.6 m / s and weak at night .