辽宁省人工增雨天气概念模型

为了使人工增雨更有针对性，需要在作业方案制定阶段就对未来影响天气系统有一个明确的判断，需要总结出一套适合辽宁省进行人工增雨作业的天气概念模型。为此，普查了1983～1992年欧亚范围高空及地面天气图，筛选出影响辽宁省并产生降水的天气系统，加以分析归纳，建立了4种有利于辽宁省人工增雨作业的天气概念模型，即西风槽型、东北冷涡型、切变线型及副高型，并分别给出了未来12～24h影响辽宁省的警戒区及最佳人工增雨作业区。

Synoptic Models of Artificial Precipitation Enhancement in Liaoning Province

It is necessary to estimate accurately the influencing weather systems at the beginning of operation and develop conceptive synoptic models for precipitation enhancement operation in Liaoning Province in order to make artificial precipitation operation more effective.Four types of synoptic models(westerly trough,northeast cold cyclone,shear linear,and subtropical high) are established,based on the analysis of the characteristics of atmospheric circulation affecting precipitation over Liaoning Province and the survey of the upper-level and ground weather charts of the Eurasian region from 1983 to 1992.The precautionary areas for the next 12 to 24 hours and the optimized seeding areas can be given for precipitation enhancement in Liaoning Province.