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Connexion

(3HamiltonSymposium du Congrès International de Géomorphologie en Anglais - 1997)

Document title

Discontinuous ephemeral streams

published at : Special Issue. Geomorphic responses to short-term climatic change

Authors(s) and Affiliation(s)

BULL W.B. (1) ;
(1) Geosciences Dep., Univ. Arizona, Tucson, ETATS-UNIS

Abstract

Many ephemeral streams in western North America flowed over smooth valley floors before transformation from shallow discontinuous channels into deep arroyos. These inherently unstable streams of semiarid regions are sensitive to short-term climatic changes, and to human impacts, because hillslopes supply abundant sediment to infrequent large streamflow events. Discontinuous ephemeral streams appear to be constantly changing as they alternate between 2 primary modes; either aggradation or degradation may become dominant. Attainment of equilibrium conditions is brief

Source

Congrès

Symposium du Congrès International de Géomorphologie No3, Hamilton , CANADA ()

published at : Geomorphology / ISSN 0169-555X

Editor : Elsevier, Amsterdam - PAYS-BAS (1987)

Millesime : 1997, vol. 19, no 3-4 [pp. 227-276]

Bibliographic references : 3 p.

Language

Anglais

INIST-CNRS, Cote INIST : 21151

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 1997.
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