辐散区 meaning in English

area of divergence
divergent zone

It was well known that the main process of precipitation formation was collecting cloud water in the warm area and ice phase particles melting in the cold area . positive vertical velocity existed between 700hpa and 500hpa in the warm area and near surface in the cold area . wind convergence existed at the height of 700hpa , and divergence existed above and below the height of 700hpa
通过对降水云系的综合研究，建立了河南省春季层状云降水概念模型：暖区降水主要通过云水碰并形成，冷区降水机制以冰粒子融化等冷云过程为主;暖区700一50ohpa通常有上升气流，冷区上升气流分布在近地面附近: 700冲a存在风场的辐合，其上下则主要是辐散区;水汽主要集中在7o0hpa高度上，暖区水汽来自南、东南方向，冷区水汽以西南输送为主;暖区位势不稳定分布在o 。
Q vector divergence field submit piece form district of convergence and divergence , have reflected meso - scale character . in the interface of convergence district and divergence district of q vector divergence , accompany severe convection precipitation and convection precipitation strengthen following convergence center strength , weaken following divergence center weaken
在对流层低层q矢量散度辐合区和辐散区的交界处，伴随有较大的对流性降水，对流性降水的强度随辐合中心强度的增强而增强，随辐合中心强度的减弱而减弱。