利用FY-2D静止卫星、 SWAN雷达产品和湖北随州CINRAD/SA雷达资料, 结合局地分析预报系统LAPS、 自动气象站资料和探空资料等, 对2011年7月26日湖北随州一次强天气过程的云结构特征进行了综合分析。结果表明, 对流云团的生长中心与雷达反射率因子大值区、 云顶黑体亮温TBB低值区和陡变的温度梯度区相对应； 云体的合并有助于对流云的发展和维持。单站雷达资料适用于局部回波的形态识别和动力场分析, 在两次弓形回波过程个例中, 第一次弓形回波产生了降雹, 在发展强盛阶段, 低层有弱回波区和较明显的入流缺口, 出现速度模糊、 风暴体倾斜的现象； 而第二次则以强降水天气为主。与第二次相比, 第一次弓形回波过程有更多、 更快的能量聚集和更丰沛的垂直积分液态水含量, 有利于冰雹的发生。FY-2D卫星反演的云顶温度和粒子有效半径之间的关系（T-Re）垂直分布显示, 降雹的对流云中具有强烈的上升气流, 使得粒子有效半径增长缓慢, 晶化温度低, 没有明显的碰并增长带和降水(雨胚增长)带。
Using FY-2D satellite data, SWAN radar product, CINRAD/SA radar data, combined with LAPS, automatic weather station and sounding data, the cloud structure of a severe convective storm in Suizhou, Hubei Province on 26 July 2011 was analyzed. The results show that the developing centre of convective storm corresponds with the region of large reflectivity factor, low and high TBB gradients. The merging effect is beneficial to the development and maintenance of storm. The radar data from single station is applicable to the shape identification and analysis of dynamic field. There are two bow echo stages in this process, both existed obviousRIN, weak low-echo region, speed fuzzy and storm body tilt characteristics at the development stage of the first bow echo, while only heavy precipitation took place at the second bow echo stage. Comparing with the second bow echo, the occurrence of hail benefited from more, faster accumulation of convective available potential energy and greater vertical integration liquid water content. From the T-Re vertical distribution of FY-2D, it is observed that at the early stage of hailstorm, stronger updrafts are revealed by the delayed growth of Re to greater heights and lower T, because there is less time for the cloud and raindrops to grow by coalescence. The strong updrafts also delayed the development of a mixed phase cloud and its eventual glaciation to colder temperatures.
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