Sediment budget to assess the geomorphic effect of a cyclonic storm, New Zealand

Steepland geomorphology

Auteurs :
PAGE, M.J.
TRUSTRUM, N.A.
DYMOND, J.R.
ABRAHAMS, A.

Description :
A short-term sediment budget was constructed to assess the erosion response of a soft-rock hill country watershed to an intense rainstorm event. The watershed is located in a landslide-prone area on the east coast of the North Island, New Zealand. During March 1988, 753 mm of rain was recorded over a four-day period with 320 mm and 329 mm on successive days. Known as Cyclone Bola, this was the largest rainstorm event in the Tutira watershed in the 93-year rainfall record. The budget quantifies the total sediment generated during the storm, the relative contribution of erosion processes involved, the amount of sediment held in storage and the amount discharged into two lakes within the watershed.


Type de document :
Article de monographie

Source :
Geomorphology (Amsterdam), issn : 0169-555X, 1994, vol. 9, n°. 3, p. 169-188, Collation : Illustration, Références bibliographiques : 40 ref.

Date :
1994

Editeur :
Pays édition : Pays-Bas, Amsterdam, Elsevier