黄河口流路维数及其探讨  

Dimension of Flow Path of the Yellow River Estuary and Its Discussion

作　　者：宗永臣[1] 柴立和[2] 

机构地区：[1]西藏大学水电系,西藏林芝860000 [2]天津大学环境科学与工程学院,天津300072

出　　处：《人民黄河》2007年第8期18-19,21,共3页Yellow River

基　　金：国家自然科学基金资助项目(50406018);教育部留学回国人员科研启动基金资助项目(413042);天津大学杰出人才引进基金资助项目(w20201)

摘　　要：利用最小二乘法的河长分维方法计算了黄河口各条近现代故道的分形维数,并使用流路维数衡量了黄河故道发育程度,发现流路维数具有以下特征:故道的弯曲系数与流路维数的代表性、整体性和相关性良好,能够很好地反映黄河下游近现代故道的特征,基本上能够体现黄河故道演变过程中的发育程度以及动力学因素。The paper calculates the parting dimension of each approaching modern old channel of the Yellow River estuary by using the method of stream length parting dimension of least-squares method,measures the development degree of the old channel by using dimension of flow path and finds out the following characteristics: the curved coefficient of old channel is good with the representativeness,integrity and relativity of dimension of flow path,can fairly reflect the characteristics of approaching modern old channel of the lower Yellow River and basically can show the development degree and dynamics factor during the process of evolution of the old Yellow River channel.

关 键 词：分形 弯曲系数 流路维数 黄河 

分 类 号：P333[天文地球—水文科学]