Spatiotemporal variations of soil surface roughness from in-situ laser scanning

Auteur(s) et Affiliation(s)



Description :
In this paper an approach to measure and quantify surface roughness in the field based on laser scanning technologies is presented. Between June 2004 and November 2005, 97 in-situ measurements were conducted in a test site with two different sandy substrates in vegetation-free conditions. Two-dimensional high-resolution datasets where generated for eight micro erosion plots. Dynamics and pattern formation were quantified for surface roughness and surface height changes. Results show strong spatial and temporal dynamics in surface roughness as well as substrate-specific variations. Temporal roughness variations could be detected and were linked to precipitation patterns. The methods presented in this paper are considered suitable to generate high-resolution datasets on spatiotemporal and multi-scale microtopography patterns and to advance the understanding of surface processes at small scales in natural environments.


Type de document :
Article de périodique

Source :
Catena (Giessen), issn : 0341-8162, 2009, vol. 79, n°. 2, p. 128-139, nombre de pages : 12, Références bibliographiques : 26 ref.

Date :
2009

Editeur :
Pays édition : Allemagne, Cremlingen-Destedt, Catena