A GRASS tool for the Sediment Delivery Ratio mapping
- Published
- Accepted
- Subject Areas
- Data Science, Spatial and Geographic Information Systems
- Keywords
- soil erosion, sediment delivery ratio, DEM, GIS
- Copyright
- © 2016 De Rosa et al.
- Licence
- This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
- Cite this article
- 2016. A GRASS tool for the Sediment Delivery Ratio mapping. PeerJ Preprints 4:e2227v2 https://doi.org/10.7287/peerj.preprints.2227v2
Abstract
This work involves a tool implementation for evaluating Sediment Delivery Ratio (SDR) in a river basin, through GRASS GIS software. The definition of a spatially distributed value of SDR is a very important task as the sediment routing can affects solid transport in stream channels, water quality degradation, and frequency increase of natural disasters such as debris flows and mudflows. For such reason the SDR evaluation, coupled with GIS approach, has been extensively used in scientific literature. Geographic information systems provide a fundamental support for a better prediction of SDR, since it can consider the space variability of factors influencing the sediment routing processes. Actually a specific GIS module to estimate the spatial variability of SDR does not exist. We implemented a GRASS GIS module (in python language) called r.sdr where the sediment delivery ratio is evaluated by GIS procedure using several SDR equations available in literature. We applied the tool to the Feo Creek watershed, located in the Apennines area of northeastern Umbria (Italy).
Author Comment
We kindly thanks Prof. Stefan STEINEGER for his important review helping us to sensibly improve our paper. Regarding Creek in Feo Creek, we feel Feo Creek is better as it refers also to the name of the Creek, similar as Tiber River or similar.