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Investigating Sediment Cascades Using Field Measurements and Spatial Modelling


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Becht, Michael ; Haas, Florian ; Heckmann, Tobias ; Wichmann, Volker:
Investigating Sediment Cascades Using Field Measurements and Spatial Modelling.
In: Sediment budgets : Proceedings of the International Symposium on Sediments Budgets (S1) at Foz do Iguaco, Brazil, 3 - 9 April 2005. - Wallingford, Oxfordshire : IAHS, 2005. - S. 206-213. - (IAHS publication ; 291)
ISBN 1-901502-87-2


Many geomorphic processes contribute to the sediment budgets of high-mountain geosystems. The interaction of these processes to form a sediment cascade can be investigated, interpreted and visualized on the basis of spatial models calibrated by field measurements. We present the results of field measurements and modelling for a talus slope in one of the two study areas of a large interdisciplinary research project (SEDiment cascades in Alpine Geosystems—SEDAG). The sediment yield of a debris flow event (~12 000 t) is compared with the mean annual sediment yields of rockfall and fluvial processes on the talus cone. In addition, modelling and zonation of the potential process domains for rockfalls and debris flows clearly illustrate the concept of a sediment cascade. Results show that the sediment volume, reworked and removed from the cascade by debris flows, exceeds by far the sediment input by rockfall, so that the sediment volume stored on the talus cone is presently decreasing.


Weitere Angaben

Publikationsform:Aufsatz in einem Buch
Schlagwörter:debris flow; fluvial erosion; Germany; Northern Limestone Alps; rockfall;
sediment budget; sediment cascades; spatial modelling
Institutionen der Universität:Mathematisch-Geographische Fakultät > Geographie > Lehrstuhl für Physische Geographie
Titel an der KU entstanden:Ja
Eingestellt am:19. Mär 2010 11:06
Letzte Änderung:12. Sep 2012 19:50
URL zu dieser Anzeige:http://edoc.ku-eichstaett.de/3807/