<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Morphological characteristics of ripples are analyzed considering bed surfaces as two dimensional random fields of bed elevations. Two equilibrium phases are analyzed with respect to successive development of ripples based on digital elevation models. The key findings relate to the shape of the two dimensional second-order structure functions and multiscaling behavior revealed by higher-order structure functions. Our results suggest that (1) the two dimensional second-order structure functions can be used to differentiate the two equilibrium phases of ripples; and (2) in contrast to the elevational time series of ripples that exhibit significant multiscaling behavior, the DEMs of ripples at both equilibrium phases do not exhibit multiscaling behavior.</p></abstract>

Morphological characteristics of ripples are analyzed considering bed surfaces as two dimensional random fields of bed elevations. Two equilibrium phases are analyzed with respect to successive development of ripples based on digital elevation models. The key findings relate to the shape of the two dimensional second-order structure functions and multiscaling behavior revealed by higher-order structure functions. Our results suggest that (1) the two dimensional second-order structure functions can be used to differentiate the two equilibrium phases of ripples; and (2) in contrast to the elevational time series of ripples that exhibit significant multiscaling behavior, the DEMs of ripples at both equilibrium phases do not exhibit multiscaling behavior.

Characterizing sand ripples at equilibrium phases

College of Harbour, Coastal and Offshore Engineering, Hohai University, Nanjing, China

State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, China

Journal of Hydrology and Hydromechanics

{"article-title":"Characterizing sand ripples at equilibrium phases"}

Morphological characteristics of ripples are analyzed considering bed surfaces as two dimensional random fields of bed elevations. Two equilibrium phases are...

Characterizing sand ripples at equilibrium phases

Publié en ligne: 01 déc. 2013

Pages: 293 - 298

DOI: https://doi.org/10.2478/johh-2013-0037

This content is open access.