摘要
利用常规气象观测资料、MICAPS、临河CINRAD/CD多普勒天气雷达产品及探空等资料,对2016年6月3日午后发生在五原县的一次大范围的冰雹天气过程进行较为详细的分析。分析结果表明,该次冰雹过程属于高空蒙古冷涡伴随低槽及低层切变线、地面倒槽的抬升,配合上冷下暖的环境场,为该次天气的发生提供了潜势条件;正涡度区和大片辐合区为冰雹的发生提供了动力条件;五原县上空上干下湿的配置,为冰雹的发生提供了水汽条件;较大的CAPE值、K值、合适的0℃和-20℃的高度层及强烈的垂直风切变条件增加了层结的不稳定性。多普勒雷达产品表明,回波顶高、垂直累积液态水含量及其密度、最大反射率因子、冰雹概率及强冰雹概率值、中气旋、逆风区、低层的弱回波区、中高层悬垂回波、弓形回波等都对冰雹天气的监测、识别和预警有很好的指示意义。该研究为冰雹灾害性天气的预报、预警与研究提供了参考依据。
Based on the conventional meteorological observation data,MICAPS system data,Doppler weather radar products and radiosonde data,a typical hail weather process in Wuyuan county of Bayannaoer,Inner Mongolia on June 3,2016 is analyzed,which provides a reference for the prediction,early warning and research of disastrous weather.The results show that the hail process belongs to the Mongolia cold vortex in the upper air,accompanied by the uplift of low trough,low-level shear line and ground inverted trough,which provides potential conditions for the occurrence of this weather with the upper cold and lower warm environment.The positive vorticity area and large convergence area provide dynamic conditions for the occurrence of hail.The configuration of upper dry and lower wet over Wuyuan country provides water vapor conditions.The Doppler radar products show that echo top height,vertical accumulated liquid water content and its density,the maximum reflectivity factor,the probability of hail and probability of strong hail,mesocyclone,the headwind area,the weak echo area in low level,the hanging echo and bow echo in middle and high level“Echo”and so on are of the great significance for hail weather monitoring,recognition and early warning.
作者
甄雅鑫
ZHEN Yaxin(Meteorological Bureau of Wuyuan County,Inner Mongolia Autonomous Region,Wuyuan 015100,China)
出处
《宁夏工程技术》
CAS
2021年第1期12-17,共6页
Ningxia Engineering Technology
关键词
冰雹
环境场
雷达产品
hail
environmental field
radar products
