| 甘肃罕见区域性冰雹成因诊断 |
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| 引用本文： | 樊晓春,曾继荣,吴颖娟,党冰.甘肃罕见区域性冰雹成因诊断[J].安徽农业科学,2010,38(7):3631-3633. |
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| 作者姓名： | 樊晓春 曾继荣 吴颖娟 党冰 |
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| 作者单位： | 1. 甘肃省平凉市气象局,甘肃平凉,744000
2. 兰州大学大气科学学院,甘肃兰州,730000 |
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| 基金项目： | 甘肃省气象科研项目“基于新一代天气雷达和LD-Ⅱ雷电定位仪的省市雷电监测预警方法”;;“平凉预报业务系统研发”项目资助 |
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| 摘 要： | 利用常规天气图、数值预报产品、云图雷达等资料,对2006年8月2日发生在甘肃陇东地区罕见区域性冰雹天气的成因进行综合诊断分析,结果表明,这次冰雹过程是大尺度环流形势异常情况导致影响系统反常规西进引发的,当华北冷涡分裂的横槽经河套北部南下,与300 hPa急流、地面冷锋交汇时触发了强烈对流;降雹区上空有强烈的上升运动和不稳定层结;卫星云图上有3个MCS;雷达回波图上有弓形回波形成的特征。
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| 关 键 词： | 环流 冰雹 物理量 卫星云图 雷达回波 |
Diagnosis of A Infrequent Regional Hail Weather Course in Gangsu |
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| FAN Xiao-chun et al.Diagnosis of A Infrequent Regional Hail Weather Course in Gangsu[J].Journal of Anhui Agricultural Sciences,2010,38(7):3631-3633. |
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| Authors: | FAN Xiao-chun |
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| Institution: | Pingliang Meteorological Bureau;Pingliang;Gansu 744000 |
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| Abstract: | Based on routine weather charts,numerical prediction products and satellite cloud images,the causes of a infrequent regional hail weather process occurred in east of Gansu on Aug.2,2006 were diagnosed and analyzed.The results showed that the hail weather process occurred at the abnormal large-scale circulation leading the system to west.When the cold trough was separated from the north cold vortex,300 hPa jet stream and surface cold front intersected which led to the strong convection;there was a strong upw... |
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| Keywords: | Circulation Hail Physical features Satellite cloud images Radar echo |
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