Using geoprocessing tools to model the potential impact of landcare on the spatial pattern of sediment delivery

Newby, J. and Pullar, D. V. (2009). Using geoprocessing tools to model the potential impact of landcare on the spatial pattern of sediment delivery. In: R.S. Anderssen, R.D. Braddock and L.T.H. Newham, A Bayesian network approach to integrating economic and biophysical modelling. The 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation, Cairns, Australia, (1943-1949). 13–17 July 2009.


Author Newby, J.
Pullar, D. V.
Title of paper Using geoprocessing tools to model the potential impact of landcare on the spatial pattern of sediment delivery
Conference name The 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation
Conference location Cairns, Australia
Conference dates 13–17 July 2009
Convener Dr David Mayer and Dr Neil Gribble
Proceedings title A Bayesian network approach to integrating economic and biophysical modelling
Journal name 18th World IMACS Congress and MODSIM09 International Congress on Modelling and Simulation: Interfacing Modelling and Simulation with Mathematical and Computational Sciences, Proceedings
Place of Publication Auatralia
Publisher Modelling and Simulation Society of Australia and New Zealand and International Association for Mathematics and Computers in Simulation
Publication Year 2009
Year available 2009
Sub-type Fully published paper
ISBN 978-0-9758400-7-8
Editor R.S. Anderssen
R.D. Braddock
L.T.H. Newham
Volume 1
Start page 1943
End page 1949
Total pages 7
Language eng
Abstract/Summary Geoprocessing tools are now commonly used in GIS to develop custom geographic applications. While GIS technology needs to advance further in its support for time-based processes and parameter estimation, it is possible to build simplified physical process models by integrating component geoprocessing tools. The advantage is that custom built environmental applications are more flexible and scalable to problem requirements. This paper reviews, by way of an application, a geoprocessing tool for hydrological modelling; namely terrain analysis using digital elevation models (TauDEM). TauDEM is a set of tools for terrain analysis, including analysis of patterns of erosion and deposition in a watershed. We analyse a watershed in the Philippines to examine how sediment laden overland flows are routed through the landscape. The purpose is to determine if the location and intensity of landcare practices at a catchment scale can significantly reduce the sediment delivery to downstream areas. We briefly describe the geoprocessing functions in TauDEM and use these to examine the influence of changing land management practices. We find that spatially targeted soil conservation practices can achieve reduction in sedimentation for lower levels of adoption.
Subjects E1
160499 Human Geography not elsewhere classified
919999 Economic Framework not elsewhere classified
090903 Geospatial Information Systems
050209 Natural Resource Management
960505 Ecosystem Assessment and Management of Forest and Woodlands Environments
1604 Human Geography
Keyword DEM
GIS
Terrain analysis
Geoprocessing
Hydrological modelling
Q-Index Code E1
Q-Index Status Confirmed Code
Additional Notes Copyright © 2009 The Modelling and Simulation Society of Australia and New Zealand Inc. and the International Association for Mathematics

 
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Created: Fri, 23 Apr 2010, 21:08:36 EST by Marie-Louise Moore on behalf of Faculty of Science