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(Article of periodic en Anglais - 2012)

Document title

Investigating the periodicities of step-pool sequences in alluvial mountain streams

published at : The geographical analysis of water problems

Authors(s) and Affiliation(s)

GAO P. (1) ; CHEN C. (2) ;
(1) Dep. of Geography, Univ., Syracuse, ETATS-UNIS
(2) School of Management, Univ., Syracuse, ETATS-UNIS

Abstract

The AA. apply both spectral analysis and autoregressive integrated moving average (ARIMA) modeling, a parsimonious stochastic approach to 11 alluvial mountain step-pool streams for identifying their periodicities. They interpolate the original sequences into those with 4 different equal-space intervals, and demonstrate that the differencing detrending method is statistically more effective to transform the sequences into stationary ones than the commonly used linear detrending method. A general procedure for identifying the periodicity of a step-pool sequence using spectral analysis with the differencing detrending method and multiple equal-space intervals is proposed. The identified periodicities might serve as an independent morphologic index to infer hydraulic processes controlling the formation of the alluvial step-pools because they are significantly related to spill resistance of the alluvial step-pools

Source

Thematical fascicle

published at : Geographical analysis / ISSN 0016-7363

Editor : Ohio State University Press, Columbus, OH - ETATS-UNIS (1969)

Millesime : 2012, vol. 44, no 3 [pp. 258-277]

Bibliographic references : 39 ref.

Collation : fig., tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17078

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1111/j.1538-4632.2012.00850.x

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2012
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