地物和超折射等非降水回波是影响雷达定量探测降水和其他产品的重要因素，利用降水和非降水回波反射率三维结构特征可以对雷达数据进行质量控制。
Non-precipitation echo from radar such as ground objects echo and super refraction and so on are important to explore quantitatively precipitation and the other products.
提出利用逐时的中尺度辐合中心、卫星红外云图云顶亮温及雷达回波降水率做中尺度雨团量级预测思路。
In addition, a thought of how to use the mesoscale convergence center, TBB of convective cloud and the radar echo for rainfall rate to predict the mesoscale rain cluster is presented.
较强的降水时段和有效的连续降水将大幅度消弱回波强度，并使其较长时间地维持在低指数状态，其相应能见度也大为改善。
Relatively strong rainfall period and effectively continuous rainfall can make the echo intensity decrease greatly and remain the low index for a long time, and the visibility turns well.
强雷达回波和正负速度对、逆风区等特征对强降水具有指示意义。
Strong radar echoes and positive-negative velocity and head wind area are indicative to the heavy rainfall event.
强降水与深对流云团及雷达回波强度强、回波顶高、VIL大的强对流单体有密切的关系。
Heavy rain is close connected with the deep convective cloud clusters and convective cells with the strong radar reflectivity, high echo top and big VIL.
强降水与深对流云团及雷达回波强度强、回波顶高、VIL大的强对流单体有密切的关系。
Heavy rain is closely connected with the deep convective cloud clusters and convective cells with the strong radar reflectivity, high echo top and big VIL.
强回波区的降水会在近地面产生出流。
多普勒速度场、回波顶高、垂直液态含水量、对应的上升气流以及温度平流对这次降水具有预报指示意义。
The vortex in Doppler velocity field, Echo tops, Vertical integrated liquid, lift stream and cold advection are significant in this rainfall case.
密集的正地闪也与强回波区相对应，而稀疏的正地闪则多发生在系统后部的稳定性降水或云砧部位。
Moreover, the dense positive CG flashes can also be observed in the strong echo region, while sparse ones are in the weak and stable echo region or cloud anvil in the rear MCS.
根据不同尺度回波生命史来约束其预报时效，得到分尺度下的降水预报场，实现暴雨回波多尺度的合成降水量临近预报；将分尺度与不分尺度降水预报结果进行了比较。
By using the life time of a certain scale echo to restrict the lead time, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.
根据不同尺度回波生命史来约束其预报时效，得到分尺度下的降水预报场，实现暴雨回波多尺度的合成降水量临近预报；将分尺度与不分尺度降水预报结果进行了比较。
By using the life time of a certain scale echo to restrict the lead time, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.
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