摘要
利用2008年6月10日濮阳冰雹天气过程的新一代天气雷达观测资料，运用基本反射率、风暴相对径向速度、垂直积分液态含水量等产品对冰雹过程进行了分析，结果表明：本次冰雹过程由局地对流单体发展而成，雷达回波尺度不大，但回波强度很大，强中心最大达6065dBz。风暴相对径向速度产品图上，大风区、逆风区和正负速度对等出现、发展，预示强风暴的出现。速度场的强弱变化早于回波强度变化，可更早得到风暴的发展信息，从而提前预报出短时强对流等灾害性天气。垂直积分液态含水量在降雹过程中有明显跳跃现象，大值区与冰雹落区有一定的对应关系。
By using the new generation weather radar observation data of the hail weather process on June 10, 2008 in Puyang region, the process was analyzed based on basic reflectivity, storm relative radial velocity, vertically integrated liquid water content and so on products. The results showed the hail process came into being by the local convective cell development, radar echo scale was small and intensity was large, the strong center was up to 60-65 dBz. In the storm relative radial velocity product map, the high wind zone, head wind zone, and the positive and negative speed coordinated present and development can indicate the emergence of strong storm. The changes of velocity field is earlier than echo intensity, which can obtain storm development information earlier, and give severe weather warning in advance. There is significant caper phenomenon of vertically integrated liquid water content during hail process; and there is some corresponding relationship between the large value zone and hail falling zone.
出处
《气象与环境科学》
2010年第B09期144-147,共4页
Meteorological and Environmental Sciences
