华中科技大学学报（自然科学版）Issue(7)：34-38,5.DOI:10.13245/j.hust.150707
地形复杂性对河道槽蓄量计算精度的影响
Influence of terrain complexity on river channel storage volume accuracy
摘要
Abstract
Generalized river surfaces were established by means of mathematical surface modeling and 3dsmax surface modeling .Sampling data were obtained through discretizing them according to certain spacing .The volumes between generalized surfaces and the reference plane were computed by using the sampling data ,together with the relative errors between theoretical values .In addition ,the sur‐face complexity was quantified by the fractal dimension ,and the correlation between surface fractal di‐mension and the relative error was analyzed .The studies show that the precision of river channel stor‐age volume has a linear correlation with the surface complexity of river bed regardless of the terrain measurement error .But the surface complexity is not the only influence factor .The relative errors may be different ,even though the surfaces have the same fractal dimension .关键词
河床演变/地形测量/河道槽蓄量/曲面建模/分形维数Key words
riverbed evolution/terrain surveying/river channel storage volume/surface modeling/fractal dimension分类
建筑与水利引用本文复制引用
元媛,张小峰,齐孟骥..地形复杂性对河道槽蓄量计算精度的影响[J].华中科技大学学报（自然科学版）,2015,(7):34-38,5.基金项目
国家自然科学基金资助项目（51379155）． （）
