Contrast Analysis of Dry and Moisture Feature of Tropical Cyclone 热带气旋干湿特征的对比分析
The dry intrusion plays an important role in the rapid development of the North China cyclone. 而干侵入则是造成此次华北气旋迅速发展加强的重要原因。
Dry intrusion flow spread to troposphere lower along high value spine of constant potential temperature and cause cyclone vorticity development in troposphere lower and so aggravate precipitation intensity. 干侵入沿相当位温高值脊向对流层低层伸展,引起对流层低层气旋性涡度的发展,使降水强度加剧;
The mechanism of the occurrence of the dry intrusion and its connection with the cyclone development are discussed. 探讨了发生干侵入的机制和它与气旋发展之间的关系。
The results suggest that dry intrusion is an important factor in influencing on this cyclone development. 结果表明,干侵入是影响气旋发展的重要因素之一。
Increasing attention has been paid to the impact of dry air on Atlantic tropical cyclone activity. 干空气影响热带气旋活动的研究受到了越来越多的重视。
The frontal passage in cold-front process usually led to a dramatic decrease of relative humidity. The air is relatively dry in the south side of the cyclone in Mongolia cyclone process which usually results in server sandstorm. 冷锋型过程中,锋面过境常常伴随相对湿度的急剧减小;蒙古气旋型过程中,气旋南侧整层大气较为干燥,易出现强沙尘暴。