Sie befinden Sich nicht im Netzwerk der Universität Paderborn. Der Zugriff auf elektronische Ressourcen ist gegebenenfalls nur via VPN oder Shibboleth (DFN-AAI) möglich. mehr Informationen...
Monitoring of gully erosion in the Central Ebro Basin by large-scale aerial photography taken from a remotely controlled blimp
Ist Teil von
Catena (Giessen), 2003, Vol.50 (2), p.309-328
Ort / Verlag
Elsevier B.V
Erscheinungsjahr
2003
Link zum Volltext
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Large deep gullies (Span.
barrancos) are some of the most important sediment sources in the semi-arid environment of the Central Ebro Basin. They are incised into the Quaternary valley bottoms (Span.
vales), which are characteristic landforms in this area. In the research project EPRODESERT (
E
valuation of
Pro
cesses Leading to Land Degradation and
Desert
ification under Extensified Farming Systems), the development of a large
barranco system is being investigated by different methods, including documentation and monitoring by aerial photography.
Geomorphological forms and processes, such as sheet wash, rill and gully erosion, cannot be documented sufficiently by conventional remote sensing methods. Spatial and temporal resolution of satellite sensors as well as of conventional aerial photography do not correspond to the scale and dynamics of geomorphological processes.
With a specially designed hot-air blimp as a sensor platform, large-scale aerial photographs were obtained from the Barranco de las Lenas specifically aimed at the scientific demands (very high spatial and temporal resolution). The development of the gully is documented and its dynamics are evaluated by a sequence of six aerial photographs taken between 1995 and 1998.