非一致性年径流分析计算初探

Study on Inconsistent Data of Annual Runoff

环境变化下的年径流序列常是非一致性的,可假定由确定性成分和随机性成分组成。针对确定成分中的非一致性(趋势、跳跃等),探讨了非一致性年径流序列分析计算方法。首先提取年径流序列中的非一致性成分,再对剩余成分进行频率分析计算,推求设计年径流年内分配。实例分析表明,经过非一致性处理后计算成果与未经非一致性处理的计算成果有显著差异,非一致性年径流序列的频率分析计算必须进行非一致性数据处理。

The annual runoff series usually is inconsistent under the variation of environment. The annual runoff series is suppose that constituted with the certain composition and the stochastic composition. Based on inconsistent composition （tendency and jump） of the certain composition, Methods on analysis and calculation of the inconsistent annual runoff series are propossed. First, choose the inconsistent composition from the annual runoff series, and study on the remainder composition, and do the frequency analysis and calculation, and then calculate the annual distribution. The instances indicate that there is distinct diversity between the results which is deal with by inconsistent analysis and calculation and which is not. Therefore, when the frequency analysis and calculation of the inconsistent annual runoff series, the inconsistent data processing must be deal with in this way.