有效位能

从有效位能变化来分析ELNino的年代际变化

Interdecadal change of El Nino as seen from variations of available potential energy

本文根据热带西太平洋调查资料，用APE方程的近似形式计算了热带低层大气的有效位能，分析了调查海域内赤道、165°E两条断面低层大气有效位能的分布特征。

Based on the data observed from the Tropical Western Pacific , this paper computes the available potential energy ( APE ) of the lower atmosphere layer in the tropics and analyses its distribution characteristics at two sections ( the equatorial and 165 ° E ) in the investigation region .

因此模式输出的对流有效位能CAPE必须经过适当订正才能用于诊断强对流天气发生的可能性。

The simulated CAPE value must be properly revised in order to diagnose the possible occurrence of the strong convective weather .

与下沉气流强度、上升气流夹卷率和对流有效位能（CAPE）消耗时间相关的参数能对模式性能造成显著影响。

The model performance is found to be sensitive to downdraft-and entrainment-related parameters and consumption time of Convective Available Potential Energy ( CAPE ) .

文章表明，用APE方程近似形式计算大气有效位能是可行的，计算本身也是简便的。

It is shown that computing APE with the approximate form of APE equations is practicable and the computation is itself simple and convenient .

在暴雨发生前武汉附近整个对流层大气积聚了大量的水汽，整个层结接近饱和，并且蕴涵着大量对流有效位能（CAPE）；

There was aboundent moisture gathered in the lower troposphere and the atmosphere was nearly saturated with a big store of convective available potential energy ( CAPE ) .

本文首先介绍了三类强不稳定度参数，即与对流有效位能CAPE有关的参数、与风垂直切变有关的参数、结合CAPE与风切变的参数等。

Three kinds of environmental parameters are introduced in this paper , inclusive of one concerned with CAPE , one concerned with wind shearing and other concerned with both CAPE and wind shearing .

我们分析了层化湍流的一些统计特性，包括动能和有效位能沿垂向波数ky的功率谱。

Some statistic properties of the stratified turbulence are analyzed , including the spectra of KE ( kinetic energy ) and APE ( effective potential energy ) along vertical wavenumber k_y .

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 .

对流有效位能在强对流预报中的应用研究

A study of application of Cape in severe convective weather prediction

并讨论了对流有效位能的局地变化因子和预报思路。

The local CAPE changing factor and forecasting ideas were discussed in this article .

一次快速发展气旋的有效位能收支分析

A case study on analysis of available potential energy budget for a West Pacific Explosive Cyclones

结果表明：福建地区飑线过程发生在较低的对流有效位能和强的风切变组合的环境中；

The results showed that high CAPE and low SRH environment existed over Nantong and contrary over Fujian Area .

局地区域扰动发展的总能量来源主要是来自于平均场的有效位能和平均场的基流动能。

The total energy of the local disturbance development originates largely from the available potential energy and kinetic energy averaged over the environmental field .

在强对流天气潜势预报中，强垂直温度梯度有时比对流有效位能更有指示性。

The strong vertical temperature gradient is sometimes more indicative than the convective available potential energy in making potential prediction of severe convective storms .

扰动成长的主要机制是斜压不稳定，锋面弯曲的主要能源是平均有效位能。

The baroclinic instability is the predominant mechanism for the growth of disturbances , and the mean available potential energy is the main energy source for the frontal meanders .

对流不稳定和条件对称不稳定的建立以及对流有效位能的集中释放是此次特大暴雨产生和持续发展的重要条件。

The establishment of convective instability and conditional symmetry instability , and the centralized release of convective available potential energy ( CAPE ) are important conditions of the occurrence and development in this rainstorm .

大尺度的强迫在暴雨区上空产生了大范围持续性的上升运动，而暴雨所需的强上升运动主要由大量局地对流有效位能释放提供。局地强对流暴雨的多普勒天气雷达个例分析

The strong lifting of the rainstorm systems is provided by the plenty local convective available potential energy ( CAPE ) release ; A Case Study of Local Torrential Rainfall Caused by Severe Convection with Doppler Weather Radar Data

同时，补充的涡动有效位能又加强了暖异常区的暖湿空气上升运动，进而产生积云对流活动及其潜热释放的正反馈过程，最终导致涡动动能急剧增长和海洋风暴的形成。

Meanwhile , the compensatory eddy potential energy also enhances the upward motion of anomaly warm air that leads to cumulus convective activities and ensuing latent heat release . This builds a positive feedback process and results in the rapid growth of eddy kinetic energy and marine storm genesis .

太平洋有效重力位能及年代际变化成因初探它们运动的速度会因重力位能与动能的消长而改变。

They move around and change speed as their balance of gravitational and kinetic energy shifts .

更有意义的是，这时有效扰动位能向扰动动能转换的效率也愈高。

In this case , it is especially interesting that the efficiency of the available potential energy transforming into the disturbance 's energy is higher .