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(Article of periodic en Anglais - 2013)

Document title

Developing a new stream metric for comparing stream function using a bank–floodplain sediment budget : a case study of three Piedmont streams

Authors(s) and Affiliation(s)

SCHENK E.R. (1) ; HUPP C.R. (1) ; GELLIS A. (2) ; NOE G. (1) ;
(1) US Geological Survey, Reston, ETATS-UNIS
(2) US Geological Survey, Baltimore, ETATS-UNIS

Abstract

A bank and floodplain sediment budget was created for 3 Piedmont streams tributary to the Chesapeake Bay. The watersheds of each stream varied in land use from urban (Difficult Run) to urbanizing (Little Conestoga Creek) to agricultural (Linganore Creek). The aim of the study was to determine the relation between geomorphic parameters and sediment dynamics and to develop a floodplain trapping metric for comparing streams with variable characteristics. Net site sediment budgets were best explained by gradient at Difficult Run, floodplain width at Little Conestoga Creek, and the relation of channel cross-sectional area to floodplain width at Linganore Creek. A correlation for all streams indicated that net site sediment budget was best explained by relative floodplain width (ratio of channel width to floodplain width). A new geomorphic metric, the floodplain trapping factor, was used to compare sediment budgets between streams with differing suspended sediment yields. This trapping factor promises to be a useful tool for future stream assessments

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no8 [pp. 771-784]

Bibliographic references : 2 p.

Collation : 6 fig., 7 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3314

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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