青藏高原大气低频振荡与低涡群发性的研究

本文指出，夏半年青藏高原低涡具有群发性，即低涡集中在某些时段连续不断地发生，而在另一些时段又不发生的特征。高原低涡的群发时段与高原大气低频振荡位相转换和垂直结构以及高原大气高频扰动的强弱有联系。这种联系，可能是高原大气扰动——高频部分与低频部分之间的相互作用。

Characteristics of the Lows Flocking with Tibet Atmospheric Low-Frequency Oscillation over the Qinghai-Xizang (Tibet) Plateau

This paper shows that the Qinghai-Xizang (Tibet) Plateau lows have the flocking characteristicsduring the summer half-year, i.e., the lows occur flockingly during a period,but they do not occur dur-ing other periods.The period of lows flocking is related to the intensity of the high-frequency disturb-ance over the Qinghai-Xizang Plateau as well as phase shifts and vertical structure of the low-frequen-cy oscillation over the plateau.This relationship may represent the interaction of disturbances (bothhigh-frequency and low-frequency) of the atmosphere over the plateau.