水文遥测数据智能纠错及插补技术在洪水预报中的应用研究

Study on application of intelligent error correction and interpolation of hydrologic telemetry data to flood forecasting

针对流域洪水预报和水库调度中雨量水位站点可能因通信和设备故障引起雨量和水位数据错误,而影响洪水预报精度的问题,通过分析水文遥测系统雨水情信息错误的原因,研究水文遥测系统雨水情数据的提取、合理性检验、错误识别方法、雨量插补、数据的智能化纠错处理等技术。在数据提取时,运用符合实际的错误判别方法、纠错技术和科学的数学插值方法来提高数据的准确性和洪水预报的精度。

In light of the problem of the precision of flood forecasting being influenced by the data errors of rainfall and water stage caused by the failures of the communication and the relevant equipments of the gauging stations concerned, the techniques for the automatic hydrologic data collection and transmission system such as data extraction, examination of rationality, error identification, rainfall interpolation and the intelligent error correction are studied based on the analysis on the cause of the errors occurred in the system, During the data extraction, both the data accuracy and the forecasting precision are improved by applying the methods of error identification, error correction and scientific mathematical interpolation under the actual condition.