水科学进展2017，Vol.28Issue(3)：390-397,8.DOI:10.14042/j.cnki.32.1309.2017.03.009
年径流频率分析的一次二阶矩法及其应用
Derived moment approach for analyzing theannual runoff frequency and its application
摘要
Abstract
The current work confirms that the derived moment approach is a suitable replacement for the curve fitting method when runoff data are not readily available.Specifically, annual runoff frequency was estimated using climate variables associated with hydrological processes.The difficulties involved in assessing the annual runoff frequency in the ungauged basins and the solutions to these problems are discussed.Here, 20 basins in Jiangxi Province were examined using the two annual rainfall-runoff models established based on the Schreiber equation and Fu-Zhang equation.Three relevant conclusions were drawn.First, the frequency distributions of annual runoff estimated using the derived moment approach fit the empirically observed frequency of the annual runoff perfectly.Second, the Fu-Zhang model was found to perform better than the Schreiber model when the basins' interannual changes in soil moisture content were not known.Finally, the parameter ω in the Fu-Zhang model was estimated using the inverse distance weight interpolation method through the calibrated value ω of neighboring basins whose runoff data were available.关键词
年径流频率/一次二阶矩法/无流量资料流域Key words
annual runoff frequency/derived moment approach/ungauged basin分类
天文与地球科学引用本文复制引用
熊立华,邝韵琪,于坤霞,温天福..年径流频率分析的一次二阶矩法及其应用[J].水科学进展,2017,28(3):390-397,8.基金项目
国家自然科学基金资助项目(51525902 （）
51479139)The study is financially supported by the National Natural Science Foundation of China (No.51525902 （）
No.51479139). （）
