摘要
本文提出了锋面假相当位温(θ_(se))图作为分析锋面的一种工具.根据个案例子的锋面上界 θ_(se)图分析,发现锋上 θ_(se)还不是均一的,并且它的极值随时间有着相当可观的变化.本文讨论了这结果,指出这表明锋面不是一个简单地总是由同一物质总组成的物质面,而是在锋前锋后连续不断的经历着锋生锋消过程,有着它自己的新陈代谢的一种构造.最后讨论了这些事实在锋面分析和数值预报上的意义.
A newly designed chart—fronalθ_(se)chart is presented as a tool for frontal analysis.This tool is applied to the analysis of the upper boundary of coldwave fronts in China for two cases.It is found that theθ_(se)over the upper frontal boundary is far from uniform and theθ_(se)value of maximum changes rather considerably with time.By means of this the authors try to demonstrate that the frontal surface is not a simple material surface always consisting of same set of air particles,but rather a structure with its own mechanism of metabolism,subjecting continuously frontogenetic process.The significance of this findings for frontal analysis and numerical forecasting is also discussed.
作者
顾震潮
陈雄山
许有丰
KOO CHEN-CHAO;CHEN YUNG-SAN;SHU YU-FUNG(Institute of Geophysics and Meteorology,Academia Sinica)
出处
《气象学报》
1958年第1期44-56,共13页
Acta Meteorologica Sinica
