vorticity

Another expression of the complete form of vertical vorticity tendency equation

全型垂直涡度倾向方程的另一导出形式

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The MCC develops mechanism is analyzed based on moist thermal wind theory, relatively mesoscale convectively generated vortex, Potential Vorticity Thinking, inertial instability theory and so on.

用湿热成风、相对中层涡旋、等熵位涡、惯性稳定度等讨论了MCC的发生发展机理。

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Xu Zhongfeng, Qian Yongfu. 2006. Mist potential vorticity index of Indian monsoon and its relationship with climate in China[J]. Acta Meteorologica Sinica, 64(6):760-769.

徐忠峰， 钱永甫。 2006。 用湿位涡定义的印度夏季风指数及其与中国气候的关系[J]。 气象学报， 64（6）：760-769。

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Analysis of symmetrically disturbed vorticity equation in anelastic system

滞弹性系统中对称扰动的涡度方程的特征分析

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Bidirectional flow diagnosis to optimize the design of a pump-turbine runner using vorticity dynamics theory

基于涡动力学的可逆转轮双向流动诊断及优化设计

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Vorticity flux through the Yucatan Channel and Loop Current variability in the Gulf of Mexico.

通过尤卡坦半岛海峡的墨西哥湾涡通量和环形水流的易变化性.

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The impact of spatially nonuniform heating on the formation and variation in Western Pacific Subtropical High ( WPSH) in July 2003 is discussed on the basis of the complete form of vertical vorticity tendency equation by using NCEP/ NCAR reanalysis dataset.

运用全型垂直涡度倾向方程理论，研究了空间非绝热加热在垂直方向的变化对2003年7月副高强度和位置变异的影响。

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He forcings of anomalous divergent wind and transient vorticity fluxes to the anomaly of stationary waves of DJF 1982/ 1983 are studied.

研究了1982／1983年12&2月对流层上层由辐散风和瞬变的涡度通量所产生的涡度源异常对定常波异常的强迫作用。

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The effect of atmospheric heating rate accounted for dominant status while the cyclone was weakening, but the effect of vorticity advection and thermal advection was secondary;

气旋减弱阶段大气加热率所起的作用占主导地位，涡度平流和温度平流作用较小；

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Based upon the complete form of vertical vorticity tendency equation, the effect of spatially nonuniform heating on the formation and variation of subtropical high is discussed in this study.

利用全型垂直涡度倾向方程，讨论了空间非均匀非绝热加热（Q）对副热带高压形态变异的影响。

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The composite structure and the vorticity budget of the equatorial anticyclone

赤道反气旋的合成结构和涡度收支

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The principal findings are: It is important to the mesoscale systems that a column of cyclonic vorticity is gener-ated and developed within an unstable and warm air with moist, while a persistently in-tensive ascending motion is maintained with whole vorticity column.

主要结果指出：气旋性涡柱在不稳定暖湿气柱内生成和发展，以及与整个涡柱共存的上升运动的持续加强，对暴雨中尺度系统的发展具有重要的作用；

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Isentropic Potential Vorticity Analysis of a Regional Heavy Snowfall

一次区域暴雪过程中的等熵位涡分析

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Based upon potential vorticity theory, this paper investigates the feature of atmospheric motion as a result of diabetic heating, and stresses the principle of atmospheric thermal adaptation to external thermal forcing.

利用位涡性质，讨论了因非绝热加热导致的大气动力特征的变化，阐明了大气动力过程向外加热强迫适应的原理。

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Results show that in the frame work of moist isentropic coordinate, vorticity development can result from reduction of convective stability, or convergence. or latent heat release in isentropic surfaces.

结果表明，在湿等熵坐标中，涡旋的发展与对流稳定度的减少，等熵面上的辐合和潜热的释放有关。

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The strongest cyclonic circulation and vorticity are at about 700 mb.

气旋性环流和气旋性涡度在对流层中层的700毫巴附近最强。

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Results show clear correlations between solar activity and global air temperature, global cloud coverage, 500 hPa vorticity area index ( VAI), thunderstorm, column ozone and temperature departure in the lower stratosphere on different time scale.

结果表明，太阳活动与全球气温、云量、VAI、雷暴及平流层温度之间有很好的相关性。

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The results show that the dynamic functions of thermal advection, vorticity advection, coastal frontogenesis and air jet stream made great contribution to the explosive development of the cyclone.

结果表明，温度平流和涡度平流、沿岸锋生以及高空急流的动力作用对气旋暴发性发展有重要贡献。

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The time mean vorticity variability was less important;

时间平均涡度变率的贡献次之；

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Adiabatic cooling, negative vorticity advection and cold advection prevented cyclone development.

绝热冷却、负涡度平流和冷平流对气旋的发展起阻碍作用。

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This paper used two approaches such as quartz C-axis fabrics and strain ratios, oblique grain shapes and quartz C-axis fabrics to measure kinematic vorticity numbers of the late ductile shear zone in southern segment of the Tancheng& Lujiang ( Tan-Lu) fault zone.

本次研究中利用石英C轴组构与主应变比值的方法以及石英C轴组构与斜列颗粒形态的方法，测量了郯庐断裂带南段晚期韧性剪切带的运动学涡度。

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The gale was caused by the mesoscale system that the vorticity advection in upper, temperature advection in middle and lower layer, the explosively developing front cyclones.

高空涡度平流、中低空温度平流、南北两支气流相遇促使地面低压强烈发展生成新的锋面气旋是大风形成的中尺度系统；

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AP combustion model with detailed chemical kinetics was established by using vorticity-velocity formulation and several essential mathematical algorithms at first.

利用涡速方程和一些必要的数学方法，基于详细化学动力学的AP燃烧模型首先被建立了起来。

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The lower atmosphere has convective stability ( MPV 1> 0) in hail area, but the development of moist slantwise vorticity ( MPV 2 < 0) could be a favorable condition to the severe convection there.

在降雹区低层为对流稳定的层结下（MPV1>0），有MPV2<0，使湿斜压不稳定增强，倾斜涡度得以发展；

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The aerodynamic optimization of a transonic fan rotor was implemented by controlling the BVF ( boundary vorticity flux) distribution on rotor blade. A novel objective function of torque associated with BVF was used to optimize the blade configuration.

将加功量作为目标函数并结合边界涡量流BVF（Boundary Vorticity Flux）这个诊断因子，对某高性能跨声风扇转子进行了优化。

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This paper provides a statistical study of the variation of the Atmospheric Vorticity Area Index ( VAI) during geomagnetic storms for 1966-1978. The results show that the influence of geomagnetic storms on VAI is very obvious.

本文分析了1966&1978年间地磁暴期间地球大气气旋的变化。在地磁暴发生后，大气涡度面积指数（VAI）出现明显的扰动。

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The results showed that the development and strengthen of instability stratification in Shenyang area resulted from warm advection of Mongolia cyclone foreside, large positive vorticity region and positive vorticity advection.

结果表明：蒙古气旋前部的暖平流、大范围正涡度区和正涡度平流导致了我国沈阳地区不稳定层结的建立和加强；

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Tim located in the rear of a high-level trough and obtained negative vorticity advection, with the effect of the feeble cold air from the east, only formed weak cold front in North China, and precipitation on Liaodong Peninsula was less than 10 mm.

Tim位于高空槽后，获得负涡度平流，在东部弱冷空气作用下，引起台风弱变性，并没有形成气旋，在东北地区被西风槽合并后消失，辽东半岛只出现10mm以下的降水。

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The three dimensional structure was that in the low level the vorticity was positive while negative in the high level.

动力结构为低层正涡度，高层负涡度，低层辐合，高层辐散。

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It is proved that, during thermal adaptation the baroclinic component of potential vorticity along the boundary of the heating region becomes negative and larger than the barotropic component, where the atmosphere becomes symmetrically unstable.

证明在热力适应过程中，沿着加热区的侧边界斜压位涡为负，且大于正压位涡，那里的大气出现对称不稳定。

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