Multiscale structure of meanders
Multiscale structure of meanders
复制标题
DOI：
10.1002/2016gl068238
复制
发表时间：
2016-04
影响因子：
5.2
通讯作者：
B. Vermeulen;A. Hoitink;G. Zolezzi;J. Abad;R. Aalto
中科院分区：
文献类型：
--
作者：
B. Vermeulen;A. Hoitink;G. Zolezzi;J. Abad;R. Aalto
河流曲流平面形态可以描述小波分析的基础上，但一个客观的方法来识别曲流平面形态的主要特征在所有的空间scales.Here，我们展示了如何一组简单的度量表示曲流形状可以从一个连续的小波变换的平面几何形状。我们构建了一个天气多重循环树来建立曲流结构，揭示了在较大尺度循环中嵌入的主导曲流尺度。该方法可以应用于河流以外的情况下，解开熔岩流，浊流，潮汐通道，溪流，冰上流，和地外流的蜿蜒结构。
River meander planforms can be described based on wavelet analysis, but an objective method to identify the main characteristics of a meander planform over all spatial scales is yet to be found. Here we show how a set of simple metrics representing meander shape can be retrieved from a continuous wavelet transform of a planform geometry. We construct a synoptic multiple looping tree to establish the meander structure, revealing the embedding of dominant meander scales in larger‐scale loops. The method can be applied beyond the case of rivers to unravel the meandering structure of lava flows, turbidity currents, tidal channels, rivulets, supraglacial streams, and extraterrestrial flows.