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时段雨强的计算是土壤流失量计算中的重要内容。在分析陕北团山沟径流场1961—1969年实测降雨过程数据的基础上,以时间间隔1 min为最小计算单元,将计算程序概化为三步:将记录时间间隔>1 min的数据拆分为间隔时间为1 min的数据;遍历所有符合特定时段内的雨强;筛选出特定时段内雨强的最大值。计算过程在EXCEL 2003中用VBA语言编码实现,并对其计算结果和手工计算结果作了对比,对比结果表明程序计算是准确的,可用于土壤流失量计算中的雨强快速计算。
Rainfall intensity calculation is an important part of soil loss calculation. Based on the data of measured rainfall from 1961 to 1969 in Tuan Shan Gully Flow Field in northern Shannxi Province, the calculation unit was simplified as 1 min as the minimum calculation unit, and the calculation procedure was generalized into three steps: the data of recording interval> 1 min was resolved Data for 1 min intervals traverses all the rain intensities that match a particular period of time and filters out the maximum amount of rain intensity for a particular period of time. The calculation process is implemented by VBA language coding in EXCEL 2003. Comparing the calculation results with the manual calculation results, the comparison results show that the program calculation is accurate and can be used for rapid calculation of rainfall intensity in the calculation of soil loss.