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D. Montgomery, E. Foufoula‐Georgiou (1993)
Channel network source representation using digital elevation modelsWater Resources Research, 29
D. Tarboton, R. Bras, I. Rodríguez‐Iturbe (1991)
On the extraction of channel networks from digital elevation dataHydrological Processes, 5
S. Fattorelli, M. Lenzi, L. Marchi, H. Keller (1988)
An experimental station for the automatic recording of water and sediment discharge in a small alpine watershedHydrological Sciences Journal-journal Des Sciences Hydrologiques, 33
I. Moore, G. Burch (1986)
Physical basis of the length-slope factor in the universal soil loss equationSoil Science Society of America Journal, 50
Mitasova Mitasova, Hofierka Hofierka, Zlocha Zlocha, Iverson Iverson (1996)
Modelling topographic potential for erosion and deposition using GISInternational Journal of Geographical Information Systems, 10
(1978)
Oxford University Press: New York; 213–230
M. Borga, G. Fontana, D. Ros, L. Marchi (1998)
Shallow landslide hazard assessment using a physically based model and digital elevation dataEnvironmental Geology, 35
G. Moglen, R. Bras (1995)
The importance of spatially heterogeneous erosivity and the cumulative area distribution within a basin evolution modelGeomorphology, 12
The relevance of low-CAI sites as deposition areas depends on the extent of sediment sources in upstream basins
A. Howard, W. Dietrich, Michele Seidl (1994)
Modeling fluvial erosion on regional to continental scalesJournal of Geophysical Research, 99
(1987)
Energy dissipation rate approach in river mechanics
Lenzi Lenzi, D'Agostino D'Agostino, Billi Billi (1999)
Bedload transport in the instrumented catchment of the Rio Cordon. Part I: analysis of bedload records, conditions and thresholds of bedload entrainmentCatena, 36
(1982)
Caratteristiche geolitologiche, geomorfologiche e dissesti
A. Becker, P. Braun (1999)
Disaggregation, aggregation and spatial scaling in hydrological modellingJournal of Hydrology, 217
I. Prosser, B. Abernethy (1996)
Predicting the Topographic Limits to a Gully Network Using a Digital Terrain Model and Process ThresholdsWater Resources Research, 32
W. Dietrich (1992)
The Problem of Channel Erosion into Bedrock
G. Willgoose, R. Bras, I. Rodríguez‐Iturbe (1991)
A coupled channel network growth and hillslope evolution model: 1. TheoryWater Resources Research, 27
H. Mitásová, J. Hofierka, Maros Zlocha, Louis Iverson (1996)
Modelling Topographic Potential for Erosion and Deposition Using GISInt. J. Geogr. Inf. Sci., 10
Cells lying on the channel network but with CAI values lower than the threshold for channel initiation: a decrease in the slope downstream of channel initiation points results in low CAI values
R. David, E. William (1994)
Landscape dissection and drainage area-slope thresholds, 221246
M. Pilotti, C. Gandolfi, G. Bischetti (1996)
IDENTIFICATION AND ANALYSIS OF NATURAL CHANNEL NETWORKS FROM DIGITAL ELEVATION MODELSEarth Surface Processes and Landforms, 21
(2003)
Wiley: Chichester; 735–766
W. Dietrich (1993)
The Channel head
D. Montgomery, W. Dietrich (1988)
Where do channels begin?Nature, 336
D. Montgomery, J. Buffington (1997)
Channel-reach morphology in mountain drainage basinsGeological Society of America Bulletin, 109
I. Moore, A. Turner, J. Wilson, S. Jenson, L. Band, M. Goodchild, B. Parks, L. Steyaert (1993)
GIS and land-surface-subsurface modeling.
I. Rodríguez‐Iturbe, A. Rinaldo, O. Levy (1997)
Fractal River Basins: Chance and Self-Organization
D. Ros, M. Borga (1997)
USE OF DIGITAL ELEVATION MODEL DATA FOR THE DERIVATION OF THE GEOMORPHOLOGICAL INSTANTANEOUS UNIT HYDROGRAPHHydrological Processes, 11
M. Lenzi, V. D’Agostino, P. Billi (1999)
Bedload transport in the instrumented catchment of the Rio CordonCatena, 36
M. Panizza, A. Pasuto, S. Silvano, M. Soldati (1996)
Temporal occurrence and activity of landslides in the area of Cortina d'Ampezzo (Dolomites, Italy)Geomorphology, 15
(1992)
Sull’interazione tra morfologia di bacino e i processi di erosione e trasporto
P. Desmet, J. Poesen, Gerard Govers, K. Vandaele (1999)
Importance of slope gradient and contributing area for optimal prediction of the initiation and trajectory of ephemeral gulliesCatena, 37
(1964)
Geology — Part II
D. Montgomery, W. Dietrich (1989)
Source areas, drainage density, and channel initiationWater Resources Research, 25
E. Ijjász-Vásquez, R. Bras (1995)
Scaling regimes of local slope versus contributing area in digital elevation modelsGeomorphology, 12
G. Fontana, L. Marchi (1998)
GIS indicators for sediment sources study in Alpine basinsIAHS-AISH publication
A. Roo (1998)
Modelling runoff and sediment transport in catchments using GISHydrological Processes, 12
(1998)
Carta geomorfologica delle zone di erosione e di alimentazione nel bacino del T. Boite a monte della confluenza con il T. Costeana, con particolare riguardo agli alvei torrentizi
(1978)
An inventory of sediment sources in the Harper - Avoca state forest
D. Tarboton (1997)
A new method for the determination of flow directions and upslope areas in grid digital elevation modelsWater Resources Research, 33
Silvia Rafaelli, D. Montgomery, H. Greenberg (2001)
A comparison of thematic mapping of erosional intensity to GIS-driven process models in an Andean drainage basinJournal of Hydrology, 244
(1996)
Watershed Oriented DIgital TErrain Model-Manuale per l'utente, versione Windows 95
The paper focuses on the channel network of alpine basins, attempting to interpret channel reaches in terms of response to erosion and deposition processes. Two basins in the Dolomites (north‐eastern Italy) were considered: the Rio Cordon (5 km2) and the upper Boite River (163 km2). The channel network was extracted from raster‐type digital elevation models (DEM) using a slope–area threshold criterion. A contribution area index (CAI), which combines drainage area, A, and local slope, S (CAI = A0·5S), was used to identify channel heads. The channel network extracted from the DEM was then analysed to recognize cells showing a value of CAI lower than the threshold adopted for channel initiation. Contiguous cells with low values of CAI define channel reaches with low transport efficiency. Field surveys carried out for some selected cases showed a good agreement between prevailing sediment deposition predicted by the analysis of the channel network and observed channel morphological features. Sediment sources mapped in two study basins were also analysed in relation to the location of channels with high potential for sediment deposition: this made it possible to classify the potential role of different types of sediment sources with regard to basin sediment yield. Topographic characteristics of the channel network, expressed by CAI, were compared with a classification of channel morphology in the Rio Cordon. It was found that cells with low values of CAI frequently occur in the riffle–pool reaches, whereas the percentage significantly decreases in step–pool and bedrock channels. Copyright © 2003 John Wiley & Sons, Ltd.
Hydrological Processes – Wiley
Published: Jan 1, 2003
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