等压面

对湿位涡的分析表明，当700hPa附近的湿位涡垂直分量小于0同时湿位涡在等压面上的垂直分量大于0时较易产生大暴雨。

Further more , the analysis of wet potential vorticity indicates that heavy rainstorms are more likely to occur while the vertical component of moist potential vorticity being less than 0 and the vertical component of moist potential vorticity at the isobaric surface being greater than 0 near 700 hPa .

用直观的方法讲述等压面与等压线及其关系

To Tel Objectively About Isobaric Surface Isobaric Line and its Relationship

因此，今后根据等压面图上的资料或数值预报产品就可以计算E了。

Thus , E can be computed with data on isobaric charts .

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 .

在副高控制下南海北部的大气从海洋得到热量，海洋主要以潜热的方式把热量输送给大气，在500hPa层以下各等压面高度和热输送日总量之间的变化特征明显。

Under the influences of subtropical anticyclone , the air above northern South China Sea accepts heat from the sea in the form of latent heat . The altitudes of isopiestic surfaces and the total daily heat exchange vary considerably below the 500 hPa .

通过分析850hPa等压面上的垂直速度场发现秋旱同期长江以南地区下沉气流异常，这种天气形势不利于降水的产生。

The analysis of vertical velocity at 850 hPa indicates the anomaly of the sinking flow during the drought which is not in favor of rain . The subtropical anticyclone controlling the area to south of the Yangtze River in autumn 2004 influences the development of drought .

热力状态处于中性层结，等压面上温度均匀分布的热力学态。

(ⅳ) in neutral stratification and uniform temperature distribution on isobaric surface ;

一张存在分析错误的10hPa等压面位势高度气候图

Analytic Error in a Climatological Figure of 10 hPa Geopotential Height Field

正压模式预报夏季低纬度较小区域等压面形势场的试验研究

An experimental study of barotropic forecast in summer for small low-latitude area

高原地区等压面和地面天气图的一种分析方法

A method for analysis of isobaric surface patterns and sea-level pressure field in Plateau Areas

等压面半球高度场球函数系数A2~0由负转正和由正转负能客观定量地反映这一转变。

The transition from negative to positive of the spherical function coefficient A20 reflects it impersonally and quantificationally .

β近似下，在等压面上的锋区可变换成孤立子。

By β - approximation , the frontal zone on an isobaric chart can be changed into a soliton .

作者利用该EliassenPalm通量关系对2002年12月一次寒潮过程中200hPa等压面上纬向基本气流的发展演变进行了诊断分析。

The relation is applied to diagnosing the evolution of the basic zonal flow at 200 hPa in a cold wave .

本文根据实际观测到的天气形势，提出了一种简便易行的高原地区等压面和地面天气图的网格点分析方法。

According to observational study a method for analysis of isobaric surface patterns and sea-level pressure field in mountainous regions is developed in this paper .

利用这种方法，各中心台、省台甚至地区台可用小型的计算机分析出高原地区的等压面或地面天气图。

By using the method and a suitable horizontal grid system the provincial weather services could get the outlines of the weather patterns in plateau areas .

这种误差可理解为将水平坐标面上的气压（或位势高度）插回到等高面（或等压面）上的插值误差。

Error-II can be regarded as the error for extrapolating pressure ( or geopotential ) from horizontal coordinate surfaces back to the constant height ( or pressure ) surface .

在平流层各等压面上，臭氧分压变化与气温变化值之间有较好的正相关，相关系数为0.85。

There is a good positive correlation with a correlation coefficient , 0.85 , between the variation of the ozone partial pressure and the air temperature at every level in the stratosphere .

在普里兹湾地区平流层中下部臭氧和等压面高度、温度准一周和准二周振荡的位相差很小，振荡是同时发生的。

In Prydz Bay region at middle low stratosphere , the phase difference between the quasi one and two week oscillations for ozone , isobaric height and temperature is very small , the oscillations almost occurring at the same time .