Quantifying recent erosion and sediment delivery using probability sampling : a case study

Auteur :
LEWIS, J.

Description :
In this case study of the Van Duzen River Basin of northwestern California, erosion and sediment delivery originating after 1995 were estimated using a ratio estimator for air-photo-identifiable features greater than 3800 m3 and a stratified random sample (STRS) of field plots to quantify smaller erosion features. A method is also illustrated for estimating the variance of the ratio of 2 STRS estimates. Variance estimation permits one to partition the uncertainty associated with different kinds of erosion measurements.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2002, vol. 27, n°. 5, p. 559-572, nombre de pages : 14, Collation : Illustration, Références bibliographiques : 15 ref.

Date :
2002

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