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层结大气
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  stratified atmosphere
     CALCULATION OF FINITE AMPLITUDE ROSSBY WAVE SOLUTION AND ITS PERIOD IN THE STRATIFIED ATMOSPHERE
     层结大气中的有限振幅Rossby波解与周期的计算
短句来源
     Ekman vertical velocity of atmospheric boundary layer was calculated by using GCM data and the new Ekman Pumping formula given by Tan(2000),in which complex boundary was included for stratified atmosphere.
     利用GCM模式资料和Tan最新得到的具有复杂边界的层结大气边界层的Ekman泵公式 ,计算了大气边界层顶的Ekman垂直速度。
短句来源
     In stratified atmosphere, a two-dimensional, non-hydrostatic model including topography is designed to be used to study the influence of Froude number on the flow over mountain.
     本文建立了一个层结大气中二维过山气流模式,对层结大气的Froude数对过山气流的影响进行了数值研究,通过地形上空流场、位温场以及平行于山脉的风场的分析。
短句来源
     THE NONLINEAR PERIODIC SOLUTION OF INERTIA-GRAVITATIONAL WAVE IN STRATIFIED ATMOSPHERE
     层结大气中重力惯性波的非线性周期解
短句来源
     Nonlinear waves in a stratified atmosphere with basic uniform flow are studied by adopting geostrophic momentum approximation(cf. HosKins, 1975) ) and the method of travelling wave solution.
     本文利用地转动量近似[1]并结合行波解的方法,研究了均匀基本气流中的层结大气非线性波动。
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  “层结大气”译为未确定词的双语例句
     INFLUENCE OF FROUDE NUMBER ON STRATIFIED FLOW OVER TOPOGRAPHY
     层结大气中Froude数对过山气流的影响
短句来源
     THE INSTABILITY AND SEMI ELLIPSE THEOREM OF THE BASIC FLOW CHANGED WITH HEIGHT IN THE NONHYDROSTATIC ATMOSPHERE
     三维层结大气随高度变化基流的不稳定性及半椭圆定理
短句来源
     Experimental and Numerical Modeling of Plume Dispersion in Stratified Atmospheres
     层结大气中烟气扩散的实验和数值模拟
短句来源
     Through studying the wave solutions of the non-linear equations of the two-dimensional quasi-momentum non-divergent and non-frictional atmosphere, it is demonstrated that the characteristics of the nonlinear wave solution is determined by the sign of parameter b.
     通过研究二维准动量无辐散、无摩擦层结大气非线性方程组的行波解问题证明,非线性行波解的本质属性是由参数b的符号性质决定的。
短句来源
     By use of the ingenious integral manipulation introduced by Howard(1961), the instability of the basic flow changed with height in three dimensional nonhydrostatic atmosphere has been investigated in the present paper.
     本文应用Howard(1961)所用的精巧积分方法研究了三维非静力平衡层结大气随高度变化基流上重力内波的不稳定性质。
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  相似匹配句对
     THE TURBULENCE IN THE SURFACE LAYER OF THE STRATIFIED ATMOSPHERE
     层结大气中近地层湍流
短句来源
     STUDIES ON THE GROUND-BASED MICROWAVE RADIOMETRY AND ITS MEASUREMENTS OF THE ATMOSPHERIC HUMIDITY PROFILE AND TOTAL WATER VAPOUR CONTENT
     微波遥感大气湿度层结的研究
短句来源
     atmospheric corrosion
     大气腐蚀
短句来源
     Maagnanimous Beijing
     大气北京
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  stratified atmosphere
Formation of a vortex ring during the rise of a heated air mass in the stratified atmosphere
      
An approximate analytical model of a turbulent thermal in a stratified atmosphere is proposed.
      
A nonstationary axisymmetric model of the development of a turbulent convective combustion product column above a fire in a stratified atmosphere is proposed.
      
Nonlocal turbulent transport in a buoyant vortex ring during the ascent of a thermal in a stratified atmosphere
      
On gravity wave-mean flow interactions in a three dimensional stratified atmosphere
      
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In this paper the turbulent exchange in the surface layer of the stable at-mosphere is discussed.Firstly,taking the effect of thermal stratification onturbulence,we derived a new form of the function of Richardson' number fromthe energy balance equation of the turbulent atmosphere.Secondly,we furtherproposed a reasonable function,which describes the vertical distribution ofelements in the stable atmospheric surface layer.Thirdly,we give some graphswhich allow us to calculate accurately and quickly the turbulent...

In this paper the turbulent exchange in the surface layer of the stable at-mosphere is discussed.Firstly,taking the effect of thermal stratification onturbulence,we derived a new form of the function of Richardson' number fromthe energy balance equation of the turbulent atmosphere.Secondly,we furtherproposed a reasonable function,which describes the vertical distribution ofelements in the stable atmospheric surface layer.Thirdly,we give some graphswhich allow us to calculate accurately and quickly the turbulent characteristicvalues,such as turbulent austousch based onobserved data.For comparison with others,some calculations based on observed data arefurnished.It shows that our treatment is reasonable and our results arebetter than results.

本文对稳定层结大气中近地层湍流的层结订正函数导出了新的形式.据此而对的湍流普遍函数作出了新的规定.根据该方案对近地层湍流特徵作了若干讨论.最后并绘制了计算近地层湍流特性量的图表,藉此可以很方便而准确地由梯度观测直接估各市地近地层湍流状况.

In the present paper, the properties of the solutions of the linearized equations of the small scale processes are analysed by the frequency method. It is indicated that there are two basic types of dynamical processes which correspond to those of the sound and the gravitational waves.In general, the rapid sound wave does not correspond to the meteorologically significant phenomena and. the existance of that wave will distort the actual changes connected with the meteorologically significant motion. Therefore,...

In the present paper, the properties of the solutions of the linearized equations of the small scale processes are analysed by the frequency method. It is indicated that there are two basic types of dynamical processes which correspond to those of the sound and the gravitational waves.In general, the rapid sound wave does not correspond to the meteorologically significant phenomena and. the existance of that wave will distort the actual changes connected with the meteorologically significant motion. Therefore, it is necessary to filter the sound wave from the equations of small scale motion.It is indicated that the static departure (static unequilibrium) is important for the development of small scale processes, such as the convection, so that it is not permitted to use the static approximation to filter the internal sound wave. In this paper, for filtering the sound wave three methods are introduced, namely, 1) application of imcom-pressiblibity; 2) the solution in power series of the small parameter s', the Froude number, and 3) application of the balance equation for the small scale process. The error introduced by each of these methods is also analysed.The process of the dispersion of the sound waves which is equivalent to the process of the adaptation of the quasi-hydrostatic field for small scale motion is investigated as a Cauchy's problem. vFinally, the non-linear equations of motion of small scale processes are given.

本文对层结大气中小尺度过程动力学的一些基本问题作了研究。 首先用频率法对线性化后的小尺度运动方程作了分析。分析指出,线性化后的运动方程中包含了两种不同类型的波动,即快速传播的声波和相对声波而言的慢波——重力内波。 对于有气象意义的运动而言,声波是一种“噪音”,必须从运动方程中把它滤掉。文中指出,由于静力偏差(非静力平衡)对小尺度运动的发展具有重要的意义,一般用静力平衡来消除声波的方法对小尺度运动并不适用。文中提出了三种不同的消除声波的方法,即1)不可压缩条件的应用;2)将解按参数ε’(=V~2/gL)的冪次展开; 3)平衡方程的应用。同时分析了这三种不同滤波方法所带来的误差程度。 作为初值问题,研究了当在某一时刻在大气有限区域内的扰动破坏了静力平衡后所激发出的声波的频散性质,指出,从静力平衡的破坏到其种平衡状态的建立,场的这一适应过程完成得极其迅速。 最后,利用所提出的滤波方法,建立了滤掉声波后的二维非线性运动方程组。

In this paper, the effects of stratification on turbulent exchange in. the surface layer of the atmosphere are studied from the viewpoint of similarity theory and dimensional analysis. Using data recently published, the size of the experiment coefficient D in the universal function of the turbulent exchange are calculated. A scheme of transition from forced to free convection, which shows a rather smooth character. Based on a characteristic length L_(Ri), the author set up a model of turbulent exchange in diabatic...

In this paper, the effects of stratification on turbulent exchange in. the surface layer of the atmosphere are studied from the viewpoint of similarity theory and dimensional analysis. Using data recently published, the size of the experiment coefficient D in the universal function of the turbulent exchange are calculated. A scheme of transition from forced to free convection, which shows a rather smooth character. Based on a characteristic length L_(Ri), the author set up a model of turbulent exchange in diabatic surface layer.

本文第一部分运用相似理論和因次分析对层結大气近地面层中湍流交換的問題作了分析,获得了与作者过去根据湍流能量平衡方程所得到的結果一致.第二部分根据新近国外发表的直接測量资料确定了普遍函数中的經驗系数D的大小;还确立了强迫对流向自由对流状态的过渡,与Priestley所指出的不同,它具有极平緩的性貭,計算結果与观測事实符合.在稳定情况下則沒有类似过渡发生.第三部分根据因次分析构成了特征尺度L_(R_i),并建立了以L_(R_i)为特征尺度的湍流交換的模式.討論結果表明,采用这一模式比前一模式合理一些,而且实用上更为方便。

 
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