对流层上层的斜压波、高空槽对天气的变化有重要的影响。

Baroclinic waves in upper? Troposphere, upper troughs and surface cyclones associated with wave packets are important systems for weather change and prediction.

分析指出，该飑线系统是由高空槽前型的上干下湿引起的不稳定强对流天气。

The squall line is a kind of instable and strong convective weather caused by the air with upper-layer dry and lower-layer wet in front of the upper-troposphere trough.

在本文中对于这类高空槽的结构和性质作了叙述，并举出1956年2月10—12日的一个高空低槽的例子。

In this paper the structure and characteristics of these troughs are discussed, and a synoptic example of Feb. 10-12 1956 is given.