Visual characterization technique for gravel-cobble river bed surface sediments; validation and environmental applications contribution to the programme of CIRSA (Centre Interuniversitaire de Recherche sur le Saumon Atlantique)

Auteurs :
LATULIPPE, C.
LAPOINTE, M.F.
TALBOT, T.

Description :
This study proposes a useful alternative visual technique to characterize the surface substrate (size and distribution) over an expanse of a gravel-bed river. The paper is divided into 4 sections : a brief review of bed sediment sampling techniques; an explanation of the methodology and training protocol used for the visual estimation of a river bed surface sediment size distribution; the error estimation linked to this technique and a comparison with common surface sampling techniques (grid sampling and surface-bulk sampling); and a discussion of the applicability and some advantages of the proposed visual characterization technique.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2001, vol. 26, n°. 3, p. 307-318, Collation : Illustration, Références bibliographiques : 46 ref.

Date :
2001

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