涡度方程 meaning in English
vorticity equation
Examples
- In terms of the ncep reanalysis data , rainfall and temperature data from sixteen stations of china and the tbb data provided by the meteorological research institute of japan , the main features and basic rules of westward extension and withdrawal processes of the northwest pacific subtropical high ( sth ) and its effect on the weather of the east china are investigated in this paper , by composite analysis , theoretical analysis and dynamical diagnosis . based on the relation between the heating and sth , the effects of the distribution of apparent heat source beside the sth on its maintenance and westward extension are also discussed , using the apparent heating to quantitative calculate the complete vorticity equation ( cve ) . major results are as follows : ( 1 ) the variation of 500hpa vorticity in the key area ( 115 - 125 e , 20 - 30 n ) is used to indicate the westward extension process of sth
本文利用ncep再分析资料和国家气象局提供的160站降水和温度资料以及日本气象厅提供的t _ ( bb )资料，通过合成分析、理论分析、动力诊断等方法，详细分析了六月份西太平洋副热带高压的西伸过程特征，以及西太平洋副热带高压西进东退的规律及其对我国东部天气的影响，并围绕加热场与西太平洋副热带高压的相互关系这一主题，重点讨论了大气视热源分布对西太平洋副高维持与西伸的影响，并运用全型垂直涡度方程对副高形态变异的可能机理进行了研究，得到了以下主要结论： ( 1 )本文选取了关键区( 115 ? 125 e , 20 ? 30 n )内的涡度值来表示副高的西伸过程。 - 2 an f - plane quasi - geostrophic barotropic vorticity equation model of high resolution is designed in this paper in order to investigate the characters of vorticity propagation and the effect of nonlinearity on the propagation within a typhoon circulation , wherein two mesoscale vortices coexist at different radial positions
2设计了一个高分辨率的f平面的准地转正压涡度方程模式，用以研究两个径向距离不等的中尺度涡旋共存条件下，台风环流内涡量传播的特征，以及非线性在此传播过程中的作用。 - To the large - scale atmosphere , we separate the terms of the horizontal vorticity converting into the vertical vorticity , which considered as the baroclinic terms , from the terms that not including horizontal vorticity by the rules of the p coordinate transforming to the z coordinate in the traditional vorticity equation , and carry out the scale analysis , and then conclude that the baroclinic terms are able to reach the same magnitude grade as the partial derivative of the vertical vorticity to time when it takes place the large scale precipitation in the summer monsoon period in china . by analyzing the game reanalysis data from april to august in 1998 in the region of chinese continent , we found that the baroclinic terms is important to the large - scale cyclone developing above the 600hpa , and the magnitude changing of the baroclinic terms is nearly in - phase as the monsoon movement , so which imply exactly that the magnitude changing of the baroclinic terms is the one of the natural characters of the summer monsoon evolution and equivalent to the movement rule of the subtropical high of the western pacific
在p坐标垂直涡度方程中，利用p坐标向z坐标转换的公式将水平涡度向垂直涡度转化的所有项分离出来，这些项具有明显的斜压特征，对其进行尺度分析后，得出在可以忽略潜热释放对涡度影响的对流层中、高层，此转化项是大尺度斜压涡度发展的重要项。通过对1998年48月的game再分析资料进行实际计算也发现，转化项在东亚夏季风上升支的600hpa及以上层次对垂直涡度的局地变化贡献很大，不能忽略。同时发现水平涡度向垂直涡度的转化在南海季风爆发时和江淮梅雨入梅及发展过程中均有指示性意义，在南海季风爆发以后，在中国东南部地区，转化项的大小与夏季风的活跃和中断等活动有着几乎一致的变化规律，这从侧面也指出了，此转化项的变化是夏季风演变所具有的本质特征，并且它反映出了西太平洋副高在中国大陆的活动情况。