Defining phases of bedload transport using piecewise regression

Auteurs :
RYAN, S.E.
PORTH, L.S.
TROENDLE, C.A.

Description :
The aim of this paper is to demonstrate the best-fit functions between measured bedload and discharge and provide support for the selection of a two-piece linear regression model with a distinct breakpoint that can be bounded with confidence limits by applying bootstrapping techniques. The AA. present and demonstrate the application of the piecewise regression procedure for transport rates measured at 8 sites on the Fraser Experimental Forest near Fraser, Colorado, where 100 to 200 samples were collected between 1992 and 1997. The piecewise regression model is evaluated further using data from 4 streams in Colorado and Wyoming.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2002, vol. 27, n°. 9, p. 971-990, nombre de pages : 20, Collation : Illustration, Références bibliographiques : 61 ref.

Date :
2002

Editeur :
Pays édition : Royaume-Uni, Chichester, Wiley