螺旋度在我国多种灾害性天气研究中的应用进展

Progress in Application Study of Helicity to Severe Weathers

螺旋度是描述大气动力性质的一个重要物理量。伴随着其理论上研究的不断深入,对其应用研究也取得显著进展,尤其在台风、暴雨、暴雪、沙尘暴、强对流等灾害性天气诊断分析及预报工作中得到了广泛应用。本文对螺旋度理论在上述灾害性天气应用中的研究工作进行了全面、系统地归纳、总结,并对未来关于螺旋度的应用研究工作进行了有意义的展望。

Helicity is an important physics reflecting atmospheric dynamics.Along with the helicity theory has been developed and perfected step by step,a marked progress has been made in its application research,more specifically,it has been widely used to diagnose and analyze the genesis of severe weather such as typhoon,torrential rainfall,snow storm,sand-dust storm,severe convection,and so on.It plays a role in weather forecast to some degrees.The application research on helicity to above all disaster weather is reviewed completely and systematically along with a prospective study in this field.