Estimation of regional material yield from coastal landslides based on historical digital terrain modelling

Auteur :
HAPKE, C.J.

Description :
High-resolution historical (1942) and recent (1994) digital terrain models were derived from aerial photographs along the Big Sur coastline in central California to measure the long-term volume of material that enters the nearshore environment. The results compare well with known volumes from several deep-seated landslides in the area and suggest that the processes by which material is delivered to the coast are episodic in nature. In addition, a number of parameters are investigated to determine what influences the substantial variation in yield along the coast. It is found that the magnitude of regional coastal landslide sediment yield is primarily related to the physical strength of the slope-forming material.


Type de document :
Article de périodique

Source :
Earth surface processes and landforms, issn : 0197-9337, 2005, vol. 30, n°. 6, p. 679-697, nombre de pages : 19, Collation : Illustration, Références bibliographiques : 48 ref.

Date :
2005

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