位温

潜热释放和初始位温扰动对锋生的影响

Latent heat and effects of initial potential temperature disturbance release on Frontogenesis

大气层结和天气尺度位温扰动对锋生的作用

Effects of atmospheric stratification and synoptic-scale potential temperature disturbances on the frontogenesis

本文给出从位温求熵的新公式，还发现不同位温占有的大气质量遵守概率论中的Gamma分布。

A new formula of potential temperature - entropy relationship is given . It is also found that the potential temperature atmosphere mass relation corresponds to the Gamma distribution in probability theory .

其垂直分布的特点是：浮力频率的垂直变化与位温梯度dθdz的垂直变化相似。

Its vertical distribution features are that the vertical variations of buoyancy frequency are similar to those of potential temperature gradient d θ dz ;

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。

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 .

此外，移出高原且方向向东的MCSs主要决定于等压面高度、散度、涡度和假相当位温这4个物理量值。

Further more , the eastward-moving MCSs that has already moved out of the Plateau mainly depends on four physical values of constant pressure surface height , divergent , vortex and the potential pseudo-equivalent temperature .

台风眼壁附近等相当位温面的突然异常密集陡立和有效位能的激增预示着台风有加强的可能，CISK正反馈机制和涡旋Rossby波传播是台风加强的可能原因。

The abrupt dense of potential temperature isopleths and the great increase of CAPE in the wall of typhoon indicate that the typhoon would enhance possibly . The CISK positive feedback mechanism and vortex Rossby wave may be a possible reason for typhoon enhance .

大尺度凝结加热与中尺度位温扰动对冷锋锋生的作用

Effects of Large-Scale Condensation Heating and Mesoscale Potential Temperature Disturbances on Cold Frontogenesis

一种压力传感器零位温漂的补偿方法

A Method of Compensating the Zero Drift of Temperature for the Pressure Sensor

广义相当位温及其扩展应用

Generalized Potential Equivalent Temperature and Its Extended Application

在向上传播过程中，重力波经历了发展、位温翻转、对流直至最终破碎的演变；

In the propagation , gravity wave undergoes growth , overturning , convection and breaking .

假湿球位温；

Wet bulb pseudo potential temperature ;

第二，讨论了环境位温与热成风因子对中尺度对称不稳定的影响。

Second , we discuss the influence of environmental referance potential temperture and thermal wind on Mesoscale symmetric instability .

步进电机细分控制的导弹定向设备开机零位温漂抑制零位光栅的一些性能研究

Realization of the Switching Zero Temperature Shift in the Missile Orientation Device Based on the Stepping Motor Fine Control

2）应用3θ（位温、假相当位温和饱和相当位温）曲线及其变化特征对沙尘暴期间大气热力稳定度进行了诊断分析；

Thermal stability during sandstorms were diagnoses by application of " 3 θ" curve and change characteristics of atmospheric .

水汽相变过程中的非绝热加热，引起小尺度位温误差，最终导致小尺度对流误差的产生。

The diabatic heating from phase state transition leads to small-scale potential temperature difference , after which convection error accrues .

结果表明：通过推算位温、气压等方法间接推算气温，比不考虑海拔直接推算气温误差有所减小。

The results convey that this way of indirect calculating temperature makes error decrease after potential temperature and air pressure is computed .

大气层结和中尺度位温扰动对锋区多重垂直运动带形成的影响

The influences of stratification and mesoscale potential temperature disturbances on the formation of multiple band of vertical motion in the frontogenesis area

太行山及其周边山脉地形区的位温梯度除范围大小略有变化外无明显日变化与季节变化。

Gradients in Taihang mountain and its adjacent sloping terrain regions show little seasonal and diurnal variability except a slight change of area .

假相当位温随高度增加减小得越快，气层的对流不稳定性越强，触发造成强降水过程的可能性越大。

Equivalent potential temperature decreases with height decrease faster , stronger convective instability of a gas , triggering heavy rain caused more likely .

文中利用半地转锋生模式考虑了三种不同大气层结廓线和两种不同水平温度对比的天气尺度位温扰动场的作用。

Three kinds of stratification profiles and two different amplitudes of synoptic-scale potential temperature disturbances are investigated by using a semi-geostrophic frontogenesis model .

广义相当位温是一个包含水汽和液态水在内的新的大气热力学参量。

The generalized potential equivalent temperature θ _s can be considered as a new atmospheric parameter which contains vapor and liquid water in it .

计算发现大气中气溶胶的增加会抑制混合层的发展，使混合层内的平均位温减小。

The results indicate that increasing of atmospheric aerosol would restrain the evolution of the mixed layer and decrease the mean potential temperature in the mixed layer .

假相当位温峰值越高、升降幅度越大、高值持续时间越长，对应的降水就越强。

Pseudo-equivalent temperature the higher the peak , the larger the lift , the longer the duration of high value , corresponding to the precipitation will be .

大气波导层往往伴随着位温随高度增加而快速增加以及大气中水汽比湿随高度增加而快速减小。

Atmospheric duct layer is often accompanied by increase in temperature with height or the rapid increase in atmospheric water vapor specific humidity increases with height and decreases rapidly .

干侵入沿相当位温高值脊向对流层低层伸展，引起对流层低层气旋性涡度的发展，使降水强度加剧；

Dry intrusion flow spread to troposphere lower along high value spine of constant potential temperature and cause cyclone vorticity development in troposphere lower and so aggravate precipitation intensity .

当初始位温扰动在背风坡时冰雹云的降雹量约为当初始位温扰动在迎风坡时冰雹云降雹量的6倍。

The hail fall of the hail cloud which domain of the initial potential temperature perturbation is located in lee slope is 6 times as large as in windward slope .

本模式模拟出的重力流冷锋主要特征，如抬高的头部、头部较强的上升运动以及等位温线密集带与实际大气观测很一致。

The simulated high head with large vertical velocity of gravity-current , the large velocity of underrun and the dense isentropes in the front are closely consistent with those observed .

同时，对称斜压波包的发展与否取决于纬向流和位温的正压分量的南北梯度时空变化。

In special and temporal changes of the meridional gradients with the barotropic components of zonal flow and potential temperature play an important role in development of the disturbance wave packet .

采用的二维冰雹云模式包括水平动量方程、垂直运动方程、位温方程、气压预报方程和五个云内水物质转化方程，云内微物理过程都采用参数化方法。

This model contains horizontal momentun 、 potential temperature 、 vertical motion and pressure forecasting equations as well as 5 cloud water matter transformation equations . All cloud micro-physics processes are parameterized .