GIS morphometric indicators for the analysis of sediment dynamics in mountain basins
作者： Lorenzo Marchi , Giancarlo Dalla Fontana
DOI: 10.1007/S00254-005-1292-4
关键词: Digital elevation model 、 Sediment transport 、 Hydrology 、 Geographic information system 、 Erosion 、 Sediment 、 Drainage basin 、 Watershed management 、 Communication channel 、 Geology
摘要: Watershed management and headwater reconstruction programs require a reliable knowledge of sediment dynamics. Geographical Information Systems (GIS) provide the framework for implementation different complex techniques assessment shallow landsliding erosion processes in mountain basins. This paper presents some morphometric indicators aimed at delivery analysis. The proposed can be easily derived from medium to fine resolution Digital Elevation Models (DEM). Applications conducted Eastern Italian Alps have shown adequateness approach address sediment-related problems. analysis considered classification source areas with regard their activity, comparison between drainage basins having morphological characteristics topographic control on transport capacity, particular attention identification channel reaches characterised by low capacity.
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