降雨是地区水资源的主要来源，研究其长期的演变特性，对于水文水资源系统的预报、模拟具有十分重要的意义。
Rainfall is the main source of water resources in any region, studying the evolvement characteristic of the precipitation is of great importance for forecasting and simulating hydrology system.
结合云南电力集团水调高级自动化工程项目，将本文的人工神经网络模型应用到中长期水情预报软件系统中，取得了较好的效果。
Combining with the advanced water resource dispatch project of Yunnan Power Group, the ANN model is successfully applied to mid-long term forecast system of water resource.
该系统的实现解决了分析预报和研究人员对长期积累的前兆观测数据的科研需要。
The realization of this system has solved the scientific and studying needs of the precursory observation data, which are accumulated for a long time in the analysis and prediction.
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