A new GRASS GIS toolkit for Hortonian analysis of drainage networks

The aim of this paper is to present a new GRASS GIS toolset designed for Hortonian analysis of drainage networks. The r.stream toolset uses a multiple flow direction algorithm for stream network extraction as well as for calculating other hydrogeomorphological features in the catchment’s area. As al...

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Bibliographic Details
Published inComputers & geosciences Vol. 37; no. 8; pp. 1162 - 1173
Main Authors Jasiewicz, JarosŁaw, Metz, Markus
Format Journal Article
LanguageEnglish
Published Kidlington Elsevier Ltd 01.08.2011
Elsevier
Subjects
Algorithms
Areal geology
Areal geology. Maps
Basin delineation
basins
computer software
computers
Drainage
Drainage network
Earth sciences
Earth, ocean, space
Exact sciences and technology
geographic information systems
Geologic maps, cartography
GRASS GIS
Grasses
Hortonian analysis
Hydrology
Hydrology. Hydrogeology
Mathematical models
Multiple flow direction
Network extraction
Network topology
Networks
Source code
statistics
Streams
watersheds
Poland
Central Europe
Europe
Basin delineation
Network topology
GRASS GIS
Hortonian analysis
Multiple flow direction
Network extraction
Drainage network
algorithms
maps
software
topology
streams
data processing
digital elevation models
geographic information systems
drainage patterns
drainage basins
stochastic models
flow
computers
statistics
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Summary:The aim of this paper is to present a new GRASS GIS toolset designed for Hortonian analysis of drainage networks. The r.stream toolset uses a multiple flow direction algorithm for stream network extraction as well as for calculating other hydrogeomorphological features in the catchment’s area. As all GRASS GIS toolsets, r.stream consists of several separate modules that can extract stream networks from a spectrum of accumulation maps, order the extracted network using several ordering methods, do advanced modeling of basin’s boundary, perform Hortonian statistics, calculate additional parameters such as flow path distance to watershed elements, partition ordered and unordered networks into near-straight-line sectors, and calculate sector directions. The package is free and open-source software, available for GRASS version 6.4 and later.
Bibliography:http://dx.doi.org/10.1016/j.cageo.2011.03.003
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ISSN:0098-3004
1873-7803
DOI:10.1016/j.cageo.2011.03.003