|Title||Multiscale structure of meanders|
|Author(s)||Vermeulen, B.; Hoitink, A.J.F.; Zolezzi, G.; Abad, J.D.; Aalto, R.|
|Source||Geophysical Research Letters 43 (2016)7. - ISSN 0094-8276 - p. 3288 - 3297.|
Hydrology and Quantitative Water Management
|Publication type||Refereed Article in a scientific journal|
|Keyword(s)||bends - meanders - multiple loops - scale space tree - valley cuvature - wavelets|
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.