An evaluation of two ten-year sediment budgets, Nahal Yael, Israel

Auteurs :
SCHICK, A.P.
LEKACH, J.

Description :
This paper compares a crude 10-year sediment budget published by Schick (1977) for Nahal Yael, a small hyper-arid drainage basin in the southern Negev Desert, with a second 10-year budget determined by more reliable methods. The comparison shows that the original budget overestimated suspended sediment output by a factor of 4 and underestimated bed material output by a factor of 2. This paper emphasizes the difficulty of obtaining reliable estimates of sediment input to and output from a channel reach, particularly for a bedload stream.


Type de document :
Article de périodique

Source :
Physical geography, issn : 0272-3646, 1993, vol. 14, n°. 3, p. 225-238, Collation : Illustration, Références bibliographiques : 42 réf.

Date :
1993

Editeur :
Pays édition : Royaume-Uni, Abingdon, Taylor and Francis