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| Titel |
A free tool integrating GIS features and workflows to evaluate sediment connectivity in alpine catchments |
| VerfasserIn |
Stefano Crema, Luca Schenato, Beatrice Goldin, Lorenzo Marchi, Marco Cavalli |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250090832
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| Publikation (Nr.) |
 EGU/EGU2014-5091.pdf |
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| Zusammenfassung |
| The increased interest in sediment connectivity has brought the geomorphologists’
community to focus on sediment fluxes as a key process (Cavalli et al., 2013; Heckmann and
Schwanghart, 2013). The challenge of dealing with erosion-related processes in alpine
catchments is of primary relevance for different fields of investigations and applications,
including, but not limited to natural hazards, hydraulic structures design, ecology and stream
restoration.
The present work focuses on the development of a free tool for sediment connectivity
assessment as described in Cavalli et al. (2013), introducing some novel improvements.
The choice of going for a free software is motivated by the need of widening the access and
improving participation beyond the restrictions on algorithms customization, typical of
commercial software.
A couple of features further enhance the tool:
being completely free and adopting a user-friendly interface, its target audience
includes researchers and stakeholders (e.g., local managers and civil protection
authorities in charge of planning the priorities of intervention in the territory),
being written in Python programming language, it can benefit from optimized
algorithms for high-resolution DEMs (Digital Elevation Models) handling and
for propagation workflows implementation; these two factors make the tool
computationally competitive with the most recent commercial GIS products.
The overall goal of this tool is supporting the analysis of sediment connectivity, facing the
challenge of widening, as much as possible, the users’ community among scientists and
stakeholders. This aspect is crucial, as future improvement of this tool will benefit of
feedbacks from users in order to improve the quantitative assessment of sediment
connectivity as a major input information for the optimal management of mountain
areas.
References:
Cavalli, M., Trevisani, S., Comiti, F., Marchi, L., 2013. Geomorphometric
assessment of spatial sediment connectivity in small Alpine catchments.
Geomorphology 188, 31–41.
Heckmann, T., Schwanghart, W., 2013. Geomorphic coupling and sediment
connectivity in an alpine catchment - Exploring sediment cascades using graph
theory. Geomorphology 182, 89–103. |
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