六盘水市冰雹时空分布特征及预警指标研究
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摘要
该文利用六盘水市2012—2017年42个人工增雨防雹作业站点的降雹资料及雷达资料,对六盘水市冰雹时空分布特征、雷达回波特征等进行了综合分析。分析表明:六盘水市冰雹天气发生在3—8月,5月最多,7月和8月最少,主要分布在盘州市的南部、水城县的北部及中部和六枝特区的东北部;降雹前,60 dBz强回波中心高度超过5 km且45 dBz回波顶高会出现跃增可作为该市冰雹预警的一个重要参考指标。
A comprehensive analysis of the temporal and spatial distribution characteristics of hailstones and radar echo features in Liupanshui city was conducted by making use of the hail precipitation data of 42 artificial rain-increasing and hail prevention work stations in Liupanshui city from 2012 to 2017. The analysis shows that the hailstorm weather in Liupanshui city occurred from march to August, most in May, least in July and August, mainly distributed in the south of Panzhou city, the north of Shuicheng county, and the northeast of Liuzhi special district. Before the hail fall, the height of the 45 dBz echo top will jump, and the height of the 60 dBz strong echo center is more than 5 km, which can be used as an important reference indicator for the hail warning in the city.
A comprehensive analysis of the temporal and spatial distribution characteristics of hailstones and radar echo features in Liupanshui city was conducted by making use of the hail precipitation data of 42 artificial rain-increasing and hail prevention work stations in Liupanshui city from 2012 to 2017. The analysis shows that the hailstorm weather in Liupanshui city occurred from march to August, most in May, least in July and August, mainly distributed in the south of Panzhou city, the north of Shuicheng county, and the northeast of Liuzhi special district. Before the hail fall, the height of the 45 dBz echo top will jump, and the height of the 60 dBz strong echo center is more than 5 km, which can be used as an important reference indicator for the hail warning in the city.
引文
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[11]方标,严小冬,方可,等.贵州铜仁市春季冰雹天气特征及防雹预警阀值[J].贵州农业科学,2014,42(3):212-218.
[12]李路长,白慧,杨胜忠,等.黔东南地区冰雹天气雷达临近预警指标研究[J].贵州气象,2014,38(1):20-24.
[2] 许焕斌,段英,刘海月.雹云物理与防雹的帮理和设计(第二版)[M].北京:气象出版社,2006:5 - 8,84 - 85,153-154.
[3] 俞小鼎,姚秀萍,熊廷南,等.多普勒天气雷达原理与业务应用[M].北京:气象出版社,2005:306.
[4] 叶宗秀,徐宝祥,龚乃虎,等.一次由回波合并形成的超级单体雹暴[J].高原气象,1987,6(1):75-85.
[5] 池再香,黄艳,杨海鹏.贵州西部一次冰雹灾害天气强对流(雹)云演变分析[J].贵州气象,2010,34(2):10-12.
[6] 万雪丽,李亚鹏.贵州近三年多雹与少雹的环流特征及差异[A].中国气象学会学术年会[C],2013:976-980.
[7] 周永水,汪超.贵州省冰雹的时空分布特征[J].贵州气象,2009,33(6):9-11.
[8] 付琼,何依遥,袁洪钊,等.黔西南州冰雹路径分布研究[A].贵州省气象学会学术年会[C],2013:382-388.
[9] 胡金磊,郭学良,侯灵.下垫面对雹云形成发展的影响[J].气候与环境研究,2014,19(4):407-418.
[10]王华,孙继松.下垫面物理过程在一次北京地区强冰雹天气中的作用[J].气象,2008,34(3):16-21.
[11]方标,严小冬,方可,等.贵州铜仁市春季冰雹天气特征及防雹预警阀值[J].贵州农业科学,2014,42(3):212-218.
[12]李路长,白慧,杨胜忠,等.黔东南地区冰雹天气雷达临近预警指标研究[J].贵州气象,2014,38(1):20-24.