A cross-scale comparison of drainage basin characteristics derived from digital elevation models

Auteurs :
ZHI-YONG YIN,
XINHAO WANG,

Description :
The feasibility of using small-scale digital elevation models (DEMs) to extract various drainage basin characteristics was evaluated by comparing basin parameters derived from the 1:250 000 DEMs with those from the 1:24 000DEMs. Twenty basins ranging approximately from 150 km2 to 1000 km2 in West Virginia, a geologically complex region, were examined in this study. The AA. found that the performance of the 1:250 000 DEMs was not significantly influenced by basin size, while terrain complexity seems to be an important factor of accuracy of the estimated basin parameters.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 1999, vol. 24, n°. 6, p. 557-562, Collation : Illustration, Références bibliographiques : 9 ref.

Date :
1999

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