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Highlighted in Open Source Geospatial Research & Education Symposium (OGRS2016)

r.avaflow & r.randomwalk: two complementary and comprehensive open source GIS simulation tools for the propagation of rapid geophysical mass flows

, , , ,
1 Institute of Applied Geology, University of Natural Resources and Life Sciences (BOKU), Vienna, Austria
2 Department of Geography and Regional Research, University of Vienna, Vienna, Austria
3 Benedikt IT Services (BITS), Vienna, Austria
4 Group Roads, Provincial Government of Lower Austria, St. Pölten, Austria
5 Department of Natural Hazards, Austrian Research Centre for Forests (BFW), Innsbruck, Austria
6 Department of Geophysics, University of Bonn, Bonn, Germany
DOI
10.7287/peerj.preprints.2224v1
Published
Accepted
Subject Areas
Scientific Computing and Simulation, Spatial and Geographic Information Systems
Keywords
GRASS GIS, Geophysical mass flows, Parameter studies, Conceptual model, Two-phase flow model
Copyright
© 2016 Mergili 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
Mergili M, Benedikt M, Krenn J, Fischer J, Pudasaini SP. 2016. r.avaflow & r.randomwalk: two complementary and comprehensive open source GIS simulation tools for the propagation of rapid geophysical mass flows. PeerJ Preprints 4:e2224v1

Abstract

We present two GIS model applications for simulating the propagation of rapid geophysical mass flows: r.avaflow employs an advanced physically-based two phase flow model intended for in-detail case studies, r.randomwalk a conceptual model suitable for studies at various scales. Both tools are implemented in open source software environments serving for the needs of both research and practice. They offer a range of visualization, validation, parameter sensitivity analysis and parameter optimization functions. Some of the key functionalities of both tools are demonstrated for the Acheron rock avalanche in New Zealand.

Author Comment

This is an article intended for the OGRS2016 Collection, session track: modelling spatio-temporal processes using open source geospatial tools.

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Martin Mergili conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, performed the computation work.

Matthias Benedikt performed the computation work, reviewed drafts of the paper.

Julia Krenn conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Jan-Thomas Fischer conceived and designed the experiments, contributed reagents/materials/analysis tools, performed the computation work, reviewed drafts of the paper.

Shiva P Pudasaini conceived and designed the experiments, contributed reagents/materials/analysis tools, performed the computation work, reviewed drafts of the paper.

Data Deposition

The following information was supplied regarding data availability:

http://www.avaflow.org - http://www.randomwalk.org

Funding

The work was conducted as part of the international cooperation project “A GIS simulation model for avalanche and debris flows (avaflow)” supported by the German Research Foundation (DFG, project number PU 386/3-1) and the Austrian Science Fund (FWF, project number I 1600-N30). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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r.avaflow & r.randomwalk: two complementary and comprehensive open source GIS simulation tools for the propagation of rapid geophysical mass flows
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