暴雨是诱发山洪灾害的直接因素, 在流域的山洪灾害预警预报、风险评估时, 经常涉及长系列大量的暴雨和洪 水要素的计算问题, 由于数据量巨大, 传统的根据实测降雨数据推算暴雨及洪水要素的方法效率低, 难以实现。以 往常用的计算方法大多根据流域面积、净雨深和汇流时长等要素试算出结果, 虽然计算简单有效, 但是精度差。提 出了一种小流域暴雨及洪水过程要素的快速计算方法, 将传统的方法和 C# 二次开发技术结合, 不仅保证了计算精 度, 还大大提高了效率。实验对比结果表明, 新的暴雨洪水要素计算方法可以更加高效准确地计算出结果。

Heavy rain is the direct cause of mountain torrents disasters. The early warning , forecast, and risk assessment of mountain torrents often involve the calculation of a series of heavy rain and flood elements. Because of the huge amount of data, the traditional method of calculating rainstorm and flood elements based on measured rainfall data is inefficient and difficult to implement. The commonly used calculation methods are mostly based on the basin area, net rainfall depth, and the length of confluence. They are simple and effective, but deliver poor accuracy. This paper puts forward a fast calculation method for rainstorm and flood in small basins, combining the traditional method and C# secondary development technology. This method guarantees calculation accuracy, and also greatly improves efficiency. The experimental results show that the new calculation method can generate the results more efficiently and accurately .

国家自然科学基金重点项目( 51739009) ; 河南省高等学校重点科研项目( 16A420005)