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advection term
相关语句
  平流项
     In addition,the largest contribution was the vertical advection term,the second one was the horizontal advec-tion term among each three terms of Q_1 and Q_2,respectively.
     必须指出,Q_1、Q_2各项中最大的是垂直平流项,其次是水平平流项
短句来源
     less was the horizontal vorticity advection term;
     水平涡度平流项次之 ;
短句来源
     (2) The divergence term, the horizontal advection term and the residual term of the volticity equation play an important role in the sustention of the landfalling tropical cyclone.
     (2)热带气旋登陆后涡度的收支主要取决于水平散度项、平流项和剩余项。
短句来源
     Based on the observation and NCAR/NCEP reanalysis data, the advection term and perpendicular term of local temperature variation are estimated, and the non-adiabatic term is estimated too.
     基于安徽沿江地区高温、降水两类天气过程,利用逐时实测气温、NCAR/NCEP再分析资料提供的风、气温、垂直速度等资料,从天气学基本原理出发,由天气学原理和ω与w的换算关系式等估算局地气温的平流项、垂直项大小,并由实测气温经过计算获得非绝热项的估算值。
短句来源
     the vertical advection term is the main contributor of the apparent heat source and apparent moist sink.
     垂直平流项是视热源、视水汽汇三个分量中的主要贡献者。
短句来源
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  “advection term”译为未确定词的双语例句
     With growth of the perturbations, non-linear interaction of advection term happens and the symmetric circulations are destroyed.
     而非线性对称不稳定在其发展初期与线性情况相同,当扰动增长到一定程度时非线性平流项的作用不可忽略,原来对称的环流则被破坏。
短句来源
     In this paper,a Lévy-Feller advection-dispersion process was considered. Using Laplace and Fourier transform,the analytic solution of the Lévy-Feller advection-dispersion equation was derived by the corresponding Green's function. The result without the advection term was found to be in good agreement with previous research by Mainardi et al.
     考虑Lévy-Feller对流-扩散过程,应用Laplace和Fourier变换及其逆变换导出了用格林函数表示的Lévy-Feller对流-扩散方程的解析解,结果中去掉对流项的特殊情况与Mainardi等的研究结果是一致的.
短句来源
     The advection term varies with comparative complication, but its role is very weak.
     结果表明,各项对于局地温度的升温作用为:平流项的变化相对比较复杂,就高温天气而言平流项的作用往往使得局地温度降低,但是两类天气平流项的作用非常弱;
短句来源
     In the vorticity equation,the contribution to the vorticity trend from the horizontal advection term was the maximum,and the one from the Beta effect the minimum.
     涡度方程分析还表明,对于涡度倾向变化的贡献中,水平涡度平流的贡献最大、β效应的贡献最小;
短句来源
     In the course of backward calculation of the two-dimensional convection & diffusion equation, on one hand the advection term itself has the strong unilateral property, which means information in the upper reaches is transmitted downstream via the advection term;
     在反向计算过程中,对流扩散方程的对流项一方面具有强烈的方向性,意味着上游信息通过对流项向下游传递;
短句来源
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  相似匹配句对
     On Term
     术语论
短句来源
     less was the horizontal vorticity advection term;
     水平涡度平流项次之 ;
短句来源
     The horizontal advection term contribute little to the frontogenesis and frontolysis.
     水平温度梯度的平流对锋生(消)的影响都很小。
短句来源
     THE K-TERM OF Be STARS
     B型发射星的K项
短句来源
     (3) vorticity advection from the Kuroshio.
     (3)黑潮向南海的涡度平流输送.
短句来源
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  advection term
The advection term then transfer the energy from the compressive component of the kinetic energy to its rotational component.
      
Coupling between the two components of kinetic energy by the advection term is relatively weak, and most energy introduced to either component by the external force is transferred, without passing through the other component, to internal nergy.
      
This leads to a more consistent definition of mass sedimentation rates and to a writing of the continuity equation for density involving only an advection term.
      
The results show that the effect of geothermal heating has about 70% of the magnitude of the vertical thermal diffusion and both terms cancel the advection term of the cold JBBW from the Japan Basin.
      
A one-dimensional sediment model was developed by introducing the CIP-CSL2 scheme in the advection term.
      
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In this paper an analog computer for the determination of the Jacobian of a mapped quantity (advection term) is presented. This compute can rapidly determine the Jacobian from the analyzed synoptic weather chart -with sufficient accuracy.

本文提出了一种计算天气图上某些物理量的雅可此式(即平流项)的模拟方法,应用这种计算机可以迅速的并足够精确的从事在实际工作中经常遇到的这种计算。

Based on two heavy rain processes of enter plum rains in 1972 and out of plum rains in 1973, in this paper the use of pressure-energy field in heavy rain analysis and forecasting is discussed. Zt is pointed out that the characteristics of pressure-energy field can show not only the formation and short-range change of heavy rain but also the characteristics of medium-range heavy rain process. It may be an useful auxiliary tool for weather map method. At the same time, the qua si-pressure-energy approximative...

Based on two heavy rain processes of enter plum rains in 1972 and out of plum rains in 1973, in this paper the use of pressure-energy field in heavy rain analysis and forecasting is discussed. Zt is pointed out that the characteristics of pressure-energy field can show not only the formation and short-range change of heavy rain but also the characteristics of medium-range heavy rain process. It may be an useful auxiliary tool for weather map method. At the same time, the qua si-pressure-energy approximative pressure-energy tendency equation and ω-equation are introduced in this paper. They can be used to diagnose the development of pressue-energy field situation and to analyze the development tendency of heavy rain. The important rule of the pressure-energy advection term is also pointed out.

本文应用1972年入梅和1973年出梅两次暴雨过程,对压能场在暴雨分析预报中的应用作了进一步的探讨。发现压能场特征不仅能够指示暴雨的生成和短期变化,而且还能表征暴雨的中期过程特点。可作为天气图分析预报方法的一个有用的辅助工具。同时本文还导出了准压能近似的压能倾向方程和ω方程,可用于诊断压能场形势转变和进一步分析暴雨的变化趋势,并指出了压能平流项的独特作用。

In this paper, based on the system of equations quantitatively describing the equilibyium model, with consideration of latent heat and frictional stress, and assuming rmonics, for the horizontal distribution of the field take the form of the approximate analytical solutions of vertical velocity and vorticity tendency on the standard level were obtained. The solutions were a set of linear polynomial in which all the term of thermal advection and vorticity advection were included, the values of these coefficients...

In this paper, based on the system of equations quantitatively describing the equilibyium model, with consideration of latent heat and frictional stress, and assuming rmonics, for the horizontal distribution of the field take the form of the approximate analytical solutions of vertical velocity and vorticity tendency on the standard level were obtained. The solutions were a set of linear polynomial in which all the term of thermal advection and vorticity advection were included, the values of these coefficients in the polynomial demonstrated the effect of these advection term on the vertcal velocity or vortcity tendency respectively. The coefficient were calculated for several standard cases. These might be help to explore qualitatively the main physical process of the development of synoptical and subsynoptical scale systems. It seems available in subtropical situation.

将包含水汽潜热和摩擦因子的平衡模式ω方程适当简化,形式上与准地转方程相似,在简单谐波分布的假定下,由此求得各标准气压层上垂直运动和涡度倾向的近似解析解,它是包含所有各气压层上涡度源变和温度源变(或称“广义平流”)以及地形强迫作用的一组线性多项式。各项的系数分别表现出该项源变或地形强迫作用对某一气压层上垂直运动或涡度倾向的影响。针对几种典型情况,计算出这些影响系数,这有助于定性地诊断天气尺度和次天气尺度系统短期演变的物理过程,适用于副热带情况。

 
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