Accessibility navigation


A geomatics-based approach for the derivation of the spatial distribution of sediment transport processes in periglacial mountain environments

Bartsch, A., Gude, M. and Gurney, S. D. (2008) A geomatics-based approach for the derivation of the spatial distribution of sediment transport processes in periglacial mountain environments. Earth Surface Processes and Landforms, 33 (14). pp. 2255-2265. ISSN 0197-9337

Full text not archived in this repository.

To link to this article DOI: 10.1002/esp.1696

Abstract/Summary

Within this paper modern techniques such as satellite image analysis and tools provided by geographic information systems (GIS.) are exploited in order to extend and improve existing techniques for mapping the spatial distribution of sediment transport processes. The processes of interest comprise mass movements such as solifluction, slope wash, dirty avalanches and rock- and boulder falls. They differ considerably in nature and therefore different approaches for the derivation of their spatial extent are required. A major challenge is addressing the differences between the comparably coarse resolution of the available satellite data (Landsat TM/ETM+, 30 in x 30 m) and the actual scale of sediment transport in this environment. A three-stepped approach has been developed which is based on the concept of Geomorphic Process Units (GPUs): parameterization, process area delineation and combination. Parameters include land cover from satellite data and digital elevation model derivatives. Process areas are identified using a hierarchical classification scheme utilizing thresholds and definition of topology. The approach has been developed for the Karkevagge in Sweden and could be successfully transferred to the Rabotsbekken catchment at Okstindan, Norway using similar input data. Copyright (C) 2008 John Wiley & Sons, Ltd.

Item Type:Article
Divisions:Faculty of Science > School of Archaeology, Geography and Environmental Science > Department of Geography and Environmental Science
Faculty of Science > School of Archaeology, Geography and Environmental Science > Earth Systems Science
ID Code:3226
Uncontrolled Keywords:geomorphological modelling mass movements land cover satellite imagery geographical information system REMOTE-SENSING DATA NORTHERN SWEDEN PERMAFROST DISTRIBUTION GEOMORPHIC PROCESS KARKEVAGGE SLOPE SURFACE RATES VEGETATION SNOWMELT
Additional Information:

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation