Problems in automated recognition of valley features from digital elevation models and a new method toward their resolution

Auteur :
TRIBE, A.

Description :
In this paper a new method for recognizing valley bottoms is presented. This is based on two improvements of Carroll's (1983) method, and produces a network that reflects the topography well. The network is used to locate valley heads. Once located, the valley heads are delineated using criteria suggested by geomorphologists and hydrologists. The resultant valley heads are generally well recognized although two problems are evident : a) there are a number of commission errors; and b) the valley heads recognized by the method are too small.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1992, vol. 17, n°. 5, p. 437-454, Collation : Illustration, Références bibliographiques : 22 réf.

Date :
1992

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