阿克苏强对流天气雷达回波统计特征

Statistical Characteristics of the Radar Echo for Severe Convective Weather in Akesu

为了发挥雷达监测和预警强对流天气的作用,制作出精细化的临近短时预报,应用2005—2006年63次冰雹云回波资料对雷达回波参数进行了分析,得到5—8月强对流天气的回波特征。阿克苏强对流回波强度强,96.8%集中在40～60dBz,其负温区厚度很厚,正负温度区的厚度比平均为1∶2.0。

The weather radar an important role in monitoring and early warning for severe convective weather. It can be applied to produce the refined short-term forecasting and nowcasting. The parameter of radar echo from 63 hail cloud echoes during 2005-2006 was analyzed, and the echo characteristics of the severe convective weather in May-Aug were obtained. In Akesu, the intensity of severe convective echoes concentrated in 40-60 dBz by 96.8 percent, their negative temperature area thickness were very thick, the average ratio of the thickness for the plus and minus temperature area was 1：2.0.