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基于API水文模型的动态临界雨量计算方法及山洪预警技术,考虑前期影响雨量、累计雨量、降雨强度及降雨分布等因素对山洪灾害的共同作用,建立不同时间尺度(1、3、6h)下各影响因素与临界雨量之间的关系。将该方法应用于英那河流域山洪预警的动态临界雨量计算,并与其他临界雨量山洪预警方法进行比较。结果表明,基于API水文模型的山洪预警方法预警准确率较高,可用于山洪预警,并能为其他中小流域的山洪预警提供技术参考。
Based on the API hydrological model of the dynamic critical rainfall calculation method and the flash flood warning technology, taking into account the impact of previous rainfall, accumulated rainfall, rainfall intensity and rainfall distribution and other factors on mountain flood disasters, the establishment of different time scales (1,3,6 h) The relationship between influencing factors and critical rainfall. The method was applied to calculate the dynamic critical rainfall of the glacier warning in the Yingnahe River Basin and compared with other warning methods of the critical flood flash flood. The results show that the early warning method based on API hydrological model is suitable for early warning of flash flood and can provide technical reference for early warning of flash flood in other middle and small watershed.