内蒙古师范大学学报(自然科学汉文版)

为总结亚运会期间气象服务典型案例，提供赛事气象服务经验，基于多源观测资料，采用三维风场反演等方法，分析2023年9月29日德清县三人制篮球赛事期间的天气背景和雷达回波特征，探讨强对流云团在赛事场馆附近减弱的原因。结果表明，高空槽和低层切变为对流发生和发展提供了有利的天气背景，但受地形阻挡影响，安吉县形成的地面辐合线未能东移影响德清县，也未触发场馆区域的强对流天气；双雷达联合反演的三维风场和垂直剖面结构显示，上游安吉地区强对流云团A、B未出现合并加强趋势，且未影响德清地区；云团B东部低层伴有弱辐散现象，回波高度自西向东由12 km降至4 km，强度快速减弱，对德清赛事场馆无明显影响。

To summarize typical cases of meteorological services for the Asian Games and provide experience in meteorological services for events, this paper analyzed the weather background and radar echo characteristics during the 3×3 basketball events in Deqing County on September 29, 2023, using multi-source observational data and methods such as three-dimensional wind field inversion. It explored the reasons for the weakening of strong convective cloud clusters near the event venue. The results indicate that the upper-level trough and low-level shear provide a favorable weather background for the occurrence and development of convection. However, due to terrain obstruction, the surface convergence line formed in Anji County fails to move eastward to affect Deqing County, nor does it trigger strong convective weather in the venue area. The three-dimensional wind field and vertical profile structure jointly inverted show that the strong convective cloud clusters A and B in the upstream Anji region do not exhibit a trend of merging and strengthening, and they do not affect the Deqing area. Cloud cluster B showed weak divergence at low levels in the eastern part, with echo heights decreasing from 12 to 4 km from west to east, rapidly weakening in intensity, and having no significant impact on the Deqing event venue.